Category Archives: Rubber & Plastic additives

Phenolic Resin S-1045

Phenolic Resin S-1045

 

CAS NO.: /

 

Chemical Name: 

Heat reactive octylphenol-formaldehyde resin S-1045;

SI group SP-1045 equivalent

 

Formula: /

 

Molecular Weight: /

 

Chemical Structure:

 

 

Specification:

Item Standard
Appearance Light yellow flakes
Melting point, initial ℃ 85~95
Methylol Content % 9.0~13.0

 

 

characteristics: 

Phenolic Resin S-1045 is a kind of Heat reactive octylphenol-formaldehyde resin with methylol  active group.it can be used in BR,EPDM,NBR,CR and NR.It is soluble in aromatic hydrocarbon solvents.

 

Applications:

①Phenolic Resin S-1045 is widely used in the production of tire,stoppers,coating,adhesive,rubber roll etc.

②when Phenolic Resin S-1045 acts as a curing agent it should be used together with activator such as 5~10% chloroprene rubber or 2~5% metal halogen.Phenolic Resin S-1055(SP-1055 equivalent) and Phenolic Resin S-1065(SP-1065 equivalent) don’t need use together with activator as there is bromine in it.

 

Package:

25kgs/bag

SP-1045

 

Storage: 

Stock Phenolic Resin S-1045 in well-ventilated,dry and cool area.

 

Shelf life

2 years if stock as above conditions

 

Transportation: 

Phenolic Resin S-1045 is not a dangerous goods according to transportation regulation

 

Insoluble sulfur

Insoluble sulfur

 

CAS NO.: 9035-99-8

 

Chemical Name: Polymeric sulfur

 

Formula: (S)n

 

Specification:

Type No. Appearance Total Sulfur Insoluble sulfur Sulfur Process Oil
HD OT 20  

 

 

 

Not flying yellow powder

80% ≥72% ≤8% 20%
HS OT 10 90% ≥81% ≤9% 10%
HS OT 20 80% ≥72% ≤8% 20%
IS 7720 80% ≥77% ≤3% 20%
IS 7520 80% ≥75% ≤5% 20%
IS 7020 80% ≥70% ≤10% 20%
IS 6033 67% ≥60% ≤7% 33%
IS 6010 90% ≥60% ≤30% 10%
IS 6005 95% ≥60% ≤35% 5%
IS 90 Yellow powder   ≥90% ≤10% 0%
IS 60 Yellow powder   ≥60% ≤40% 0%
OT 20 Yellow powder ≥66% ≥62%   32%~34%
OT 33 Yellow powder ≥79% ≥75%   19%~21%

 

Application and characteristics:  

Application

① insoluble sulfur can be used in rubber industries, as curing agents make rubber surface spray cream, which will improve the steel-adhesive binding, because the plastic uniform distribution, which would ensure the quality of vulcanization, is the best rubber curing agent, it is widely used tire carcass compound, in particular meridian tires all steel, can also be used for cable, Cots, rubber products such as rubber compound.

② Insoluble Sulfur can improve the resistance to both fatigue and aging of all kinds of rubber products. It is used as the best vulcanizing agent for rubber. And it is widely used in the manufacture of the rubber chemistry such as tire, rubber pipe, shoes, cable and wire, insulating materials, latex, and all kinds of automobile rubber parts, especially for radial tires.

 

Characteristics

① Nature nontoxic, combustible, yellow powder. As with the S-isomer, said mu-sulfur, high polymerization forms were not soluble in carbon disulfide and other solvents. Mu-sulfur instability can be gradually transformed into cubic crystal-sulfur, a few weeks at room temperature 50% change, as long as 80oCwith changes in a few minutes, this need by adding stabilizer to reduce its rate of change.

The rubber no need spout frost during storage time. The Insoluble Sulfur is able to keep the unanimous features of the rubber material, and prevent the pollution to rubber product and the models.

② With Insoluble Sulfur, there will be no transferring phenomenon between rubber layers that protects the molding stickiness of the surfaces.

③ Reduce coking while mix smelting and storage.

④ Shorten vulcanization time, reduce the dose of sulfur and improve the property of anti-aging of the product.

 

Package and storage: 
25kgs/bag as customer’s request

In accordance with good industrial practice handle with care and avoiding exposure of the packaged product to direct sunlight.

 

Transportation: 

It is not dangerous goods according to transportation regulation

 

Shelf life:

2 years if stored as above condition

Antioxidant 1790

Antioxidant 1790

 

CAS NO.: 40601-76-1

 

Chemical Name: 

tris(4-tert-butyl-3-hydroxy-2,6-dimethyl-benzyl);Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate; Antioxidant 1790; Cyanox 1790; Irganox 3790; Primanox1790; DEOX-1790; 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione; 1,3,5-Tris(4-tert-butyl-3-hydroxy-2,6-dimethyl benzyl)–1,3,5-triazine-2,4,6-(1H,3H,5H)-trione; Antioxidant-1790 ; ,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazinane-2,4,6-trione; Thanox 1790; Irganox 1790; 

,3,5-Tris-(4-tert-butyl-2,6-dimethyl-3-hydroxybenzyl)-isocyanurate;

 

Formula: C42H57N3O6 

 

Molecular Weight: 700

 

Chemical Structure:

 

 

Specification:

Item Standard
Appearance White to off-white powder 
Purity  ≥95%
Ash  ≤0.1%
Volatile  ≤0.5%
Melting point 158℃~162℃
Color AHPA ≤133

 

Applications:

Antioxidant 1790 is a kind of hindered phenol primary antioxidant.

① Antioxidant 1790 can be used in polypropylene

② Antioxidant 1790 can be used in polyethylene(PE)

③ Antioxidant 1790 can be used in polyamide

④ Antioxidant 1790 can be used in ABS resin

⑤ Antioxidant 1790 can be used in polystyrene

⑥ Antioxidant 1790 can be used in polyester

⑦ Antioxidant 1790 can be used in fiber resin

⑧ Antioxidant 1790 can be used in elastic fiber

⑨ Antioxidant 1790 can be used in PE PP food package as USA FDA regulation

 

advantages:

① Low dosage and excellent performance: only with 0.02%~0.1% addition can effectively prevent goods from heat and oxidization degradation during the usage and high temperature processing 

② Great synergy with some secondary antioxidants such as phosphite ester and thiodipropionate type.

③ Geat boiling water resistance ability

① Good resistance to extraction of the detergent cleaning 

 

Package and storage: 

40kgs/paper drum 

Or as customer’s request

Stock it in well-ventilation cool, dry area. 

 

Transportation: 

Antioxidant 1790 is not a dangerous goods according to transportation regulation

 

Shelf life:

2 years if stock as above conditions

Antioxidant 1520

Antioxidant 1520

 

CAS NO.: 110553-27-0 

 

Synonym: 

4,6-bis(octylthiomethyl)-o-cresol;2-Methyl-4,6-bis(octylsulfanylmethyl)phenol  

2-methyl-4,6-bis(octylsulfanylmethyl)phenol 4,6-bis (octylthiomethyl)-o-cresol; Phenol, 2-methyl-4,6-bis(octylthio)methyl-; 2,4-BIS(OCTYLTHIOMETHYL)-6-METHYLPHENOL; 2-METHYL-4,6-BIS((OCTYLTHIO)METHYL)PHENOL; Irganox 1520; Primanox1520; Antioxidant 1520

 

Formula: C25H44OS2

 

Molecular Weight: 424.7  

 

Chemical Structure:

 

 

Specification:

Item Standard
Appearance Low viscosity pale yellow liquid
Purity  ≥96%
Transmittance @ 425nm ≥97%
Transmittance after NaOMe @ 425nm  ≥95%
Melting point 14℃
Flash point  >200℃
Density @ 20℃ 0.98
Viscosity @ 20℃ 85~90mPa.s
Solubility @ 20℃ as following  
Water  ≤0.1%
Ethanol  >50%
Acetone  >50%
Chloroform >50%
Ethyl acetate  >50%
N-hexane >50%
Methanol  >50%
Toluene  >50%

 

 Application

Antioxidant 1520 is a new kind multifunctional liquid phenolic antioxidant with highly effective stabilization for organic materials such as elastomers, plastics, adhesives sealants, oils and lubricants.as there are 2,4  thioether substitutional groups, antioxidant 1520 both can act as primary and also secondary antioxidant.   

① Antioxidant 1520 can protects above materials against thermo-oxidative degradation.  

② Antioxidant 1520 can be applied for emulsion and solution polymerized elastomers such as BR, SBR, NBR, SBS, and others. 

③ Antioxidant 1520  is effective both as a raw elastomer and compound stabilizer.  

④ Antioxidant 1520 also has perfect performance in lubricant,various adhesive, sealant, and latex applications. But  It is not recommended for odor sensitive hot melt adhesives or their raw materials. 

⑤ Antioxidant 1520 can be used alone at low levels without co-stabilizers to provide both processing and long-terms heat aging stability. If needed, it also can be used with other additives such as secondary antioxidants(antioxidant 264,),metal passivator agent, phosphite ester;phosphate ester;peroxide remover;amid stabilizer;alkaline co-stabilizers;Nucleating agents;benzofuranone, light stabilizers, and other functional stabilizers.  The effectiveness of this product used in a wide range of 

elastomers is exceptional along with extensive food contact approvals. 

 

Advantages:

① Non-discoloring, non-staining

② Stable to light and heat 

③ Environment friendly

④ Low in volatility

⑤ Good compatibility with many other raw materials

⑥ Low dosage(0.1%~0.3%) but better performance compared with traditional antioxidant series(0.5%~1%) 

 

Package and storage: 

200kgs/galvanized /iron drum 

or as customer’s request;

Stock it in well-ventilation cool, dry area. 

 

Transportation: 

Antioxidant 1520 is not a dangerous goods according to transportation regulation

 

Shelf life:

2 years if stock as above conditions

Antioxidant 1081

Antioxidant 1081

 

Equivalent to: Ciba SC Inganox 1081;Great Lakes Lowinox TBP-6

 

CAS NO.: 90-66-4

 

Synonym:   

IRGANOX 1081

Antioxidant 2246-S

2,2′-thiobis(6-tert-butyl-p-cresol)

6,6′-di-tert-butyl-2,2′-thiodi-p-cresol

3-tert-Butyl-2-hydroxy-5-methylphenyl sulfide

ANTIOXIDANT LK-1081

2.2′-Thio Bis(6-Tert-Butyl-4-Methylphenol)

Phenol, 2,2-thiobis6-(1,1-dimethylethyl)-4-methyl-

6,6′-Di-tert.-butyl-2,2′-thiodi-p-kresol

2,2’-thiobis(6-t-butyl-4-methylphenol

2,2′- THIO-BIS (4-METHY-6-PHENOE)

ANTIOXIDANTLK-10812,2-THIO-BIS(4-METHY-6-TERT-BUTYL-PHENOL)

2,2”- THIO-BIS(4-METHY-6-N-BUTYL- PHENOL)

2,2′-Thiobis[6-(1,1-dimethylethyl)-4-methylphenol]

6,6′-Thiobis(2-tert-butyl-4-methylphenol)

Advastab-406

CAO-6

2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methyl-phenyl)sulfanyl-4-methyl-phenol

2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylphenyl)sulfanyl-4-methylphenol

2-tert-butyl-6-[(3-tert-butyl-2-hydroxy-5-methyl-phenyl)thio]-4-methyl-phenol

 

 

Formula: C22H30O2S

 

Molecular Weight: 358.5374

 

Chemical Structure:

 

 

 

 

Specification:

Item Standard
Appearance White to off-white powder
Purity ≥99%
Melting area 81℃~86℃
Volatile ≤0.5%
Ash content ≤0.1%

 

 

 

 

 

 

 

 

 

 

 

 

Characteristics: 

Antioxidant 1081 is a very popular phenol antioxidant with excellent performance.it is environment-friendly,nontoxic and without coloration.

 

Applications

① In rubber industry: antioxidant 1018 is a very good antioxidant for  PE,PP,synthetic rubber and latex.products by adding antioxidant 1081 can resist high temperature,prevent UV absorber,reduce the damage of multiple deformation and can passivate the unstable transition metal salt. These performance is more obvious in dry rubber by adding antioxidant 1081(2246-S) than by antioxidant 2246.antioxidant 1081 is environment-friendly and don’t be decolored by exposing it to the sunlight.it is mainly used in producing white sidewall of tires,other light color goods and latex goods.

② In plastic industry: antioxidant 1081 can prevent the heat-aging and light-aging of PE,PVC,polyamide,chlorinated polyether,HIPS,ABS resin,daicel,cellulosic resin etc.especially in the processing of polyamine hot melt adhesive,antioxidant is a very important choice as the main antioxidant.when it is used with phosphite ester assistant antioxidant there is a very good synergistic effect which is much better by using them alone.

③ In oil industry: antioxidant 1081 is an excellent stabilization agent for lubricant,blend diesel fuel,gas oil,engine oil,anti-wear hydraulic fluid.it can prevent these oils from heat-aging and light-aging and inhibit nitryl oxidation.because of the good synergistic effect of S and phenol antioxidant 1081 has good oil solubility.this make it easy and convenient add into these different oils.the comprehensive performance of antioxidant is much better than common kind antioxidant such as T501,L135,L115,DNA,AP-36 and especially suitable for hydrotreated base oil and lubricant.the dosage is just 1/2 of those common antioxidant such as T501.but the final effect is far better than T501.it can improve the quality and level of the finished goods easily and greatly.

① synergistic effect: sulfur-containing hindered phenol antioxidant 1081 is rarely absorbed by the carbon black but has very obvious synergistic effect as when it is used together with carbon black as they are transferred into chemical compounds with greater antioxidant efficacy under the catalysis of carbon black that enhances stability of the polymer.antioxidant 1081 also has good synergistic effect with alkyl phenol or phosphite compounds also.it works very well when used in producing high electrical property plastics.general dosage is 0.1~1 phr.

 

 

Package and storage: 

20kgs or 25kgs/paper drum

or as customer’s request;

Stock in well-ventilation cool, dry area.

 

 

Transportation:

Antioxidant 1081 is not a dangerous goods according to transportation regulation

 

 

Shelf life:

2 years if stock as above conditions

 

vulcanization agent DTDM

Vulcanization agent 4,4′-Dithiodimorpholine (DTDM)

DSC_0087

 

CAS NO.:103-34-4

 

Formula:C8H16N2O2S2

 

Molecular Weight:236.35

 

 

Synonym:morpholine disulfide;4,4′-Dithiodimorpholin;SULFASAN(R) R;Morpholine N,N’-disulfide;N,N’-DIMORPHOLINE DISULFIDE;N,N’-DITHIOBIS(MORPHOLINE);VANAX A;

VANAX A FINE GRIND;VANAX A RODFORM;4,4′-DITHIODIMORPHOLINE

 

 

Chemical Structure:

 

 

 

Specification:

Item Specification
Appearance white or light yellow crystal powder
Melting point ≥ 120℃
Heat loss ≤ 0.3%
Ash ≤ 0.3%

 

Application and characteristics:

It is mainly used as vulcanized agent and accelerator for natural rubber and artificial rubber. Under vulcanizing temperature, it can decompose active sulfur, whose content is 27%. In cross linking reaction, it mainly forms monosulphur bond. Its usual use level is 0.5-2 orders. This product, which has the characteristic of processing safely, is usually used together with such accelerators as thiazoles, thiuram, dithiocarbamates etc.

 

Package and storage: 

25kgs/bag or as customer’s request;

DTDM

 

Storage:

Stock it in well-ventilation cool, dry area.

 

Shelf life:

12 months if stock as above conditions

 

Transportation:

vulcanization agent DTDM is not a dangerous goods according to transportation regulation 

 

 

Vulcanization agent Amylphenol disulfide polymer VA-5

Vulcanization agent Amylphenol disulfide polymer VA-5

 

Composition: tert-amylphenol disulfide polymer(75% )+silica gel(25%)

 

CAS NO.:68555-98-6

 

Synonym:

Mixture of tert-amylphenol disulfide polymer and silica gel

Amylphenol disulfide polymer;

Arkema Vultac 5 equivalent;

Poly-amylphenol disulfide polymer

Blend- Calcium Silicate, Amyl Disulfide Polymer

Curing Resin
Specification:

Item Standard Test Way
Appearance Beige free flowing powder Visual
Sulfur content, % 20.0-22.0 Combustion
% Passing 50 Mesh ≥98 /
% Passing 20 Mesh ≥99 /
Water content,% ≤2 /

 

 

Application:

① Amylphenol disulfide polymer 5is a Sulfur donor for natural and synthetic rubbers.

② Amylphenol disulfide polymer 5produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics.

③ Amylphenol disulfide polymer 5 can be used as either complete or partial replacements for sulfur and thiuram and DTDM sulfur donors in EV and semi-EV type cure systems.

④ In tires Amylphenol disulfide polymer 5 is used in the inner-liner, chafer,bead apex, sidewalls, and tread.

⑤ Industrial applications include noise damping blocks, motor mounts, dock fenders, elastic threads, automobile engine hoses, gaskets, belts, and other industrial rubber products that require good heat resistance.

⑥ Amylphenol disulfide polymer 5 also aid in rubber processing.

⑦ Amylphenol disulfide polymer 5 polychloroprene vulcanizates have improved flex life.

⑧ Amylphenol disulfide polymer 5 is also an excellent bleaching agent,antioxidant,catalysts in the disproportionation of rosin or rosin esters.

 

Characteristics:

① Polymers: Natural rubber and synthetic elastomers. Especially good in curing rubber that contains chlorine such as chlorobutyl and polychloroprene.

② Synergism: Can be used with most typical rubber accelerators and sulfur. When used as a partial replacement for sulfur, Amylphenol disulfide polymer 5 tends to improve dispersion of other additives in the rubber.

③ Crosslink Type: Amylphenol disulfide polymer 5 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance.

④ Non-nitrosamine:Amylphenol disulfide polymer 5 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams.

 

Advantages:

① Non-nitrosamine

② Lower tack to make it easier to stock and handle

③ Lower volatility

④ Lower volatile degradation products

⑤ Good compatibility with many rubber polymers

⑥ Very good antioxidant properties

⑦ Improve heat age properties of vulcanizates because of its generation of mono- and di-sulfic crosslinks

⑧ Increase the resinous plasticizer during processing

⑨ Increase the green tack in NBR,BR and SBR based compounds

⑩ Improve the dispersion of other compound ingredients into rubber

 

Package:

20kgs/paper drum or as customer’s request;

 

Storage: 

It should be stored in dry & cool environment(below 86 °F/30℃) in closed original containers.

 

Shelf Life:

2 years if stored as indicated above

Vulcanization agent Amylphenol disulfide polymer VA-3

Vulcanization agent Amylphenol disulfide polymer VA-3

 

Composition:Amylphenol disulfide polymer(>95% )+sulfur(<2%)

 

CAS NO.:68555-98-6

 

Synonym:

Amylphenol disulfide polymer;

Arkema Vultac 3 equivalent;

Poly-amylphenol disulfide polymer

Mixture of Phenol, 4-(1,1-dimethylpropyl)-, polymer with sulfur chloride (S2Cl2) with sulfur

Curing Resin
Specification:

Item Standard Test Way
Appearance Reddish-brown to dark brown pastilles Visual
Sulfur content, % 27.0-29.0 Combustion
Softening point, ℃ 78.0-93.0 Ring & Ball
Specific gravity @ 25℃ 1.2 Typical
Flash point closed up 644℉(340℃) /

 

Application:

① Description:Amylphenol disulfide polymer 3 is nitrosamine-free sulfur donor vulcanizing agent.

② Polymers: Natural rubber and most synthetic rubbers.

③ Crosslink Type:Amylphenol disulfide polymer 3 produces predominately monosulfide bridges. These bridges are stable and have excellent resistance to heat and ageing when compared with typical polysulfide bridges.

 

Advantages:

① Non-nitrosamine

② Lower tack to make it easier to stock and handle

③ Lower volatility

④ Lower volatile degradation products

⑤ Good compatibility with many rubber polymers

⑥ Very good antioxidant properties

⑦ Improve heat age properties of vulcanizates because of its generation of mono- and di-sulfic crosslinks

⑧ Increase the resinous plasticizer during processing

⑨ Increase the green tack in NBR,BR and SBR based compounds

⑩ Improve the dispersion of other compound ingredients into rubber

 

Package:

25kgs/paper drum;25kgs/kraf or as customer’s request;

 

Storage: 

Store it in dry & cool environment(below 86 °F/30℃) in closed original containers.

 

Shelf Life:

2 years if stored as indicated above

Vulcanization agent poly-alkyl phenol disulfide VA-TB710

Vulcanization agent poly alkyl phenol disulfide VA-TB710

 

Composition:Para-tert-butylphenol disulfide(90 % ) + sulfur(< 3 %)+stearic acid(10%)

 

CAS NO.:60303-68-6

 

Synonym:

Mixture of tert-butylphenol disulfide polymer and stearic acid;

Arkema Vultac TB710 equivalent;

Poly-tert-butylphenol disulfide;

poly-alkyl phenol disulfide polymer;

alklyphenol disulfide polymer;

Para-tertiobutylphenol Disulfide Polymer; Alkylphenol disulfide polymer;

Para-tert-butylphenol disulfide polymer;

Tert-butylphenol disulfide polymer;

Alkylphenol disulfide polymer sulfur donor;

Alkylphenol disulfide oligomer;

Curing Resin

  

Specification:

Item Standard Test Way
Appearance brown pastilles or powder Visual
Sulfur content, % 26.4-28.4 Combustion
Softening point, ℃ 75-95 Ring & Ball
Stearic acid content,% 9.0-11.0 FTIR

 

Application: 

① Alkylphenol disulfide polymer VA-TB710 is a Sulfur donor for natural and synthetic rubbers.

② Alkylphenol disulfide polymer VA-TB710 produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics.

③ Alkylphenol disulfide polymer VA-TB710 can be used as either complete or partial replacements for sulfur and thiuram and DTDM sulfur donors in EV and semi-EV type cure systems.

④ In tires Alkylphenol disulfide polymer VA-TB710 is used in the inner-liner, chafer,bead apex, sidewalls, and tread.

⑤ Industrial applications include noise damping blocks, motor mounts, dock fenders, elastic threads, automobile engine hoses, gaskets, belts, and other industrial rubber products that require good heat resistance.

⑥ Alkylphenol disulfide polymer VA-TB710 also aid in rubber processing.

⑦ Alkylphenol disulfide polymer VA-TB710 polychloroprene vulcanizates have improved flex life.

⑧ Alkylphenol disulfide polymer VA-TB710 is also an excellent bleaching agent,antioxidant,catalysts in the disproportionation of rosin or rosin esters.

① Dosage: 0.5~20 phr.2 phr is most preferably

 

Characteristics:

① Polymers: Natural rubber and synthetic elastomers. Especially good in curing rubber that contains chlorine such as chlorobutyl and polychloroprene.

② Synergism: Can be used with most typical rubber accelerators and sulfur. When used as a partial replacement for sulfur, Alkylphenol disulfide polymer TB710 tends to improve dispersion of other additives in the rubber.

③ Crosslink Type: Alkylphenol disulfide polymer TB710 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance.

④ Non-nitrosamine: Alkylphenol disulfide polymer TB710 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams.

 

Advantages:

① Non-nitrosamine

② Lower tack to make it easier to stock and handle

③ Lower volatility

④ Lower volatile degradation products

⑤ Good compatibility with many rubber polymers

⑥ Very good antioxidant properties

⑦  Improve heat age properties of vulcanizates because of its generation of mono- and di-sulfic crosslinks

⑧ Increase the resinous plasticizer during processing

⑨ Increase the green tack in NBR,BR and SBR based compounds

⑩ Improve the dispersion of other compound ingredients into rubber

 

Package:

25kgs/paper drum;25kgs/kraft bag or as customer’s request;

VA-TB710 bag

VA-TB710

Storage: 

It should be stored in dry & cool environment(below 86 °F/30℃) in closed original containers.

 

Shelf Life:

2 years if stored as indicated above

 

Vulcanization agent Alkylphenol disulfide polymer VA-TB7

Vulcanization agent Alkylphenol disulfide polymer VA-TB7

 

Composition: Para-tert-butylphenol disulfide(> 95 % ) + sulfur(< 3 %) 

 

CAS NO.:60303-68-6

 

Synonym:

Mixture of tert-butylphenol disulfide polymer and sulfur;

Arkema Vultac TB7 equivalent;

Poly-tert-butylphenol disulfide;

Para-tert-butylphenol disulfide polymer;

Alkylphenol disulfide polymer sulfur donor;

Alkylphenol disulfide polymer;

Para-tertiobutylphenol Disulfide Polymer;

Tert-butylphenol disulfide polymer;

Curing Resin

Specification:

Item Standard Test Way
Appearance Yellow to light brown pastilles or powder Visual
Sulfur content, % 29.5-31.5 Combustion
Softening point, ℃ 95-115 Ring & Ball

 

Application: 

① Alkylphenol disulfide polymer VA-TB7 is a Sulfur donor for natural and synthetic rubbers.

② Alkylphenol disulfide polymer VA-TB7 produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics.

③ Alkylphenol disulfide polymer VA-TB7 can be used as either complete or partial replacements for sulfur and thiuram and DTDM sulfur donors in EV and semi-EV type cure systems.

④ In tires Alkylphenol disulfide polymer VA-TB7 is used in the inner-liner, chafer,bead apex, sidewalls, and tread.

⑤ Industrial applications include noise damping blocks, motor mounts, dock fenders, elastic threads, automobile engine hoses, gaskets, belts, and other industrial rubber products that require good heat resistance.

⑥ Alkylphenol disulfide polymer VA-TB7 also aid in rubber processing.

⑦ Alkylphenol disulfide polymer VA-TB7 polychloroprene vulcanizates have improved flex life.

⑧ Alkylphenol disulfide polymer VA-TB7 is also an excellent bleaching agent,antioxidant,catalysts in the disproportionation of rosin or rosin esters.

⑨ Alkylphenol disulfide polymer VA-TB7 is a good vulcanizing agent for vegetable oils.

⑩ Dosage: 0.5~20 phr.2 phr is most preferably

 

Characteristics:

① Polymers: Natural rubber and synthetic elastomers. Especially good in curing rubber that contains chlorine such as chlorobutyl and polychloroprene.

② Synergism: Can be used with most typical rubber accelerators and sulfur. When used as a partial replacement for sulfur, Alkylphenol disulfide polymer TB7 tends to improve dispersion of other additives in the rubber.

③ Crosslink Type: Alkylphenol disulfide polymer TB7 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance.

④ Non-nitrosamine: Alkylphenol disulfide polymer TB7 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams.

 

Advantages:

① Non-nitrosamine

② Lower tack to make it easier to stock and handle

③ Lower volatility

④ Lower volatile degradation products

⑤ Good compatibility with many rubber polymers

⑥ Very good antioxidant properties

⑦ Improve heat age properties of vulcanizates because of its generation of mono- and di-sulfic crosslinks

⑧ Increase the resinous plasticizer during processing

⑨ Increase the green tack in NBR,BR and SBR based compounds

⑩ Improve the dispersion of other compound ingredients into rubber

 

 

Package:

25kgs/paper drum;25kgs/kraft bag or as customer’s request;

 

Storage: 

It should be stored in dry & cool environment(below 86 °F/30℃) in closed original containers.

 

Shelf Life:

2 years if stored as indicated above

Vulcanization Agent Caprolactamisulfide (DTDC)

Vulcanization Agent Caprolactamisulfide (DTDC)

 

CAS NO.:23847-08-7

 

Chemical Name:

(LANXESS Rhenogran®CLD 80 equivalent)

Dithiocaprolactame;CLD;1,1,-Dithiobis(hexahydro-2H-azepin-2-one);

Caprolactamdisulfide; 80% Caprolactamdisulfide in a polymer binder system;

LANXESS Rhenogran®CLD 80

 

Formula:C12H20N2O2S2

 

Molecular Weight:288.423

 

Chemical Structure:

 

Specification:

Item Standard
Appearance White to yellowish powder
Melting area ≥120℃
Heat loss at 60 ℃ ≤0.5
Ash at 900 ℃ ≤0.5
Mesh residue(150um) ≤0.1

 

Application Application and characteristics:

Caprolactamdisulfide is a not discolouring sulfur donor for natural and synthetic rubber and latex, especially for low sulfur vulcanization,salt bath vulcanization,injection moulding and for vulcanization of thick-walled products.it providess mono-and di-sulfur bridges which are more stable than those formed by elemental sulfur.In contrast to other sulfur donors caprolactamdisulfide does not form nitrosamines which can cause cancer and is thus a very safe rubber additive.

 

Package and storage: 

25kgs/bag or as customer’s request;

 

Storage: 

Stock it in well-ventilation cool, dry area.

 

Shelf life:

2 years if store as above indicated conditions

Antioxidant 300

Antioxidant 300

Antioxidant 300 is a kind of multi-functional and high efficient main antioxidant which has perfect performance not matter it is used alone or together with other additives as it has double effects of free radical termination and hydrogen peroxide decomposition.

 

CAS NO.: 96-69-5

 

Chemical Name: 

4,4′-Thio-bis(6-tert-butyl-m-methyl phenol); 4,4′-sulfanediylbis(2-tert-butyl-5-methylphenol); Rubber Antioxidant 3004, 4’–Thio-bis (3-methyl-6 tert-butylphenol)

 

Formula: C22H30O2S

 

Molecular Weight: 358.5374

 

Chemical Structure:

 

 

Specification:

Item Standard
Appearance White crystalline powder or granular
Melting area 160℃~163℃
Heat loss ≤0.5%
Ash content ≤0.1%
Mesh residue(150um) ≤0.1

The magnificent synergistic effect with other additives as following:

① synergistic effect With carbon black:regular hindered phenol and hindered amine antioxidants (such as 1010, TCA, DNP)can be absorbed by the surface of carbon black when are used together with carbon black.this antagonistic effect will reduce the stability of the polymer. But it is completely different for  sulfur-containing hindered phenol antioxidant 300.when antioxidant 300 be used together with carbon black they are transferred into chemical compounds with greater antioxidant efficacy under the catalysis of carbon black that enhances stability of the polymer.

② synergistic effect With other antioxidant such as 1010,TCA,DNP: different formulations can be made according to customer’s special request which can reduce the cost but can enhance the comprehensive staility of the polymer and finished goods.

③ synergistic effect with UV absorber which enhance the heat resistance,stability and shelf life of the products

 

Package and storage: 

25kgs/bag;

25kgs/paper drum;

20kgs/carton box;

900kgs/big bag;

or as customer’s request;

 

Storage: 

Stock in well-ventilation cool, dry area.

 

Transportation:

Antioxidant 300 is not a dangerous goods according to transportation regulation

 

Shelf life:

2 years is stored as above condition