Chemical Auxiliaries

Chemical name: 2-[2'-hydroxy-3',5'-bis(-dimethyl benzyl)-phenyl]benzotriazole CAS No.:70321-86-7 Molecular formula: C30H29N3O Molecular weight: 447.6 Molecular structure Specification Appearance: Light yellow powder Purity, %: ≥ 99 Melting point，℃:139.5-141 Volatile matter, %: ≤ 0.5 Ash, %: ≤ 0.05 Transmittance 450nm≥97% 500nm≥98% Solubility (20℃, g/100ml solvent) Acetone:2 n-Hexane: 0.6 Benzene: 10 Ethyl acetate: 4 Toluene: 20 Chloroform: 35 Methylene chloride: 34 Ethanol: 0.3 Cyclohexane: 5 MEK: 13 Methanol＜0.1 Water＜0.01 Application UV ABSORBER HOSORB-234 is a high molecular weight ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class. It has low volatility at high temperatures and high resistance to thermal degradation for compounding and molding applications. It is highly effective for polymers processed at high temperature such as polycarbonate, polyester, polyacetal, PPO, polyamide, aromatic copolymers, thermoplastic polyurethane and polyurethane fibers etc.. It is also useful in the light stabilization of powder coatings and solvent-based coatings. info at hhochem.com

Chemical name: 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate CAS No.: 4221-80-1 Molecular formular: C29H42O3 Molecular weight: 438.6 Molecular structure Specification Appearance: White powder Melting point，℃: ≥ 193 Purity (GC), %: ≥ 99 Loss on Drying, %: ≤0.3 Light transmittance,%, 450nm: ≥ 98 Application UV ABSORBER HOSORB UV 120 is substituted benzoate that absorbs ultraviolet radiation and through a reversible chemical rearrangement, dissipates the energy as heat. It is no color contamination, low volatility, high thermal stability, excellent resistance to washing and extraction. It exhibits a synergistic effect in combination with HALS. As light stabilizer and antioxidant, it can be used in the polymer. It is suitable for polyethylene, polypropylene, polystyrene, PU, TPU and other products, especially suitable for polypropylene films, coatings, adhesives and fiber.  info at hhochem.com

Chemical name: 2-Hydroxy-4-Methoxy Benzophenone (Benzophenone-3) CAS No.：131-57-7 Molecular formular：C14H12O3 Molecular weight：228.24 Molecular structure Specification Appearance: Pale yellow crystalline powder Purity, %: ≥99 Melting point，℃：63-66 Heavy metals: 5ppm max Ash, %: ≤0.1 Loss on Drying, %: ≤0.5 Specific Extinction: 285nm ≥ 630 325nm ≥ 400 Application UV ABSORBER HOSORB-UV9 is a high-efficient UV radiation absorbing agent. It is effectively absorbs UV radiation of 290-400 nm wavelength. It almost does not absorb visible light. It is particularly used for light-colored transparent products. It is well stable to light and heat, not decomposable below 200°C. It is also used for paint and various plastic products, particular effective to PVC, PS, PU, acrylic resin, light-colored transparent furniture, as well as to cosmetics. info at hhochem.com

Chemical name: N-（ethoxycarbonylphenyl）-N'-methyl- N'-phenyl formamidine CAS No.：57834-33-0 Molecular formular：C17H18N2O2 Molecular weight：282.3 Molecular structure Specification Appearance: Slightly yellowish liquid Assay, %: ≥ 98.5 Boiling point, ℃/0.1mmHg：188-190 Water，%：≤1.0 Solubility (25℃, g/110g solvent) Water ＜0.01 Aceton ＞50 Methanol ＞50 Ethylacetate ＞50 Application UV ABSORBER HOSORB-UV1 is a high efficient anti-ultraviolet additive. It is widely used in adhesives, polyurethane, foam and other materials. Because of its excellent absorption property, the ultraviolet radiation in 240-340nm is effectively absorbed and the ultraviolet radiation in the 300-330nm is nearly absorbed completely. Its anti-ultraviolet effect is 1.1-1.4 times as efficient as the UV absorbers of benzophenone or benzotriazole types. UV1 has good effect on the polymer system and it has good compatibility with the resin. The anti-yellowing effect is excellent. Its effect is superior to the other UV agent for PU. It is widely used in PU foaming, PU coating, PU leather, PU board and resins etc. info at hhochem.com

Chemical name: 2,4-Dihydroxy-Benzophenone(Benzophenone-1) CAS No.：131-56-6 Molecular formular：C13H10O3 Molecular weight：214.22 Molecular structure Specification Appearance: Yellowish crystalline podwer Melting point，℃：143 - 146 Purity, %: ≥99 Loss on Drying, %: ≤0.5 Light transmittance 290nm≥630 Application UV ABSORBER HOSORB-UV-0 is a light stabilizer agent. It is applicable to polyolefine, poyvinyl chlornamee, polystyrene etc. It can be used as the intermediate of UV-absorbing agents as well. info at hhochem.com

Chemical Name： Nonylphenol Disulfide Oligomer CAS NO.: 172826-32-3 Specification Appearance：Dark brown, viscous liquid Sulfur Content,% 9.4-10.6 Chloride Concentration, % 0.1 max. Viscosity at 100 °C, centistokes 30 – 100 mPa Solubility: Soluble in benzene, toluene, heptane, methanol, ethanol and other organic solvents; Insoluble in water. Its solubility is (25 ℃, g/100g): Toluene＞ 100 Heptane＞ 100 Methanol＞ 100 Water＜ 1 Application ANTIOXIDANT HONOX-323 is used in rosin, rosin ester, rosin resin, adhesive, petroleum oil and wax. It makes improvement in color bleaching and disproportionation catalyst. 1, Rosin or rosin resins such as pentaerythritol rosin ester, maleic acid resins, glycerol rosin ester: adding 0.2-0.3% 323 and 2-3 Gardner can be improved greatly. 2, Disproportionation of rosin: it is an efficient catalyst for the disproportionation of rosin. It converts instable conjugated double bond in the rosin molecule into stable conjugated double bond with an aromatic ring structure, which means to convert the abietic acid into dehydroabietic acid. The dosage in the process is 0.1-0.3% and optimum amount is 0.2%. 3, Anti-crystallization of rosin: Rosin is a non-crystalline transparent solid, but it tends to crystallize. Crystallization of rosin causes a reduction in rosin’s transparency and solubility, affecting its usage. Adding 0.2% 323 to the rosin and it can improve its anti-crystallization performance. info at hhochem.com

Chemical Name: Triphenyl phosphite CAS No.：101-02-0 Molecular formula：C18H15O3P Molecular weight：310 Molecular structure Specification Appearance: Clear liquid Purity, %:≥ 98 Color（Pt-Co）：≤40 Freezing point，℃：19-24 Refractive index： 1.585-1.590 Density：1.183-1.192 Acid value.(mgkoH/g), %: ≤ 0.50 Application PHOSPHITE ANTIOXIDANT HONOX-TPP is widely used in PVC products to keep products' transparency as chelating agent. As assisting antioxidant, It is suitable for PE, PP, ABS, PS, lubricant, ABS resin, epoxy resin, synthetic rubber etc. It is used as a performance additive to improve the color and clarity of alkyd resin, unsaturated polyester resin and various industrial oils during their production. It is also used in paint, coating, ink, adhesive and pesticide intermediates. info at hhochem.com

Chemical Name: Trilauryl Phosphite CAS No.：3076-63-9 Molecular formula：C35H75O3P Molecular weight： 586.95 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：0.860-0.890 Refractive index (25 ℃)：1.450-1.460 Acid Value (mgKOH/g): 0.20 max. Color (APHA): 50 max. Application PHOSPHITE ANTIOXIDANT HONOX-TLP is a clear liquid which has C36H75O3P as chemical formula. It is a phenol-free trialkyl phosphite which can be used as lubricant additive to improve anti-friction and anti-wear characteristics. It also functions as a sulfur deactivator. It may be used as a stabilizer in PVC, polyester fibers and in polypropylene when regulatory approval for food contact is not required. It can provide excellent processing heat stability. It is widely used in PVC, ABS, SBR, CR, PU etc. info at hhochem.com

Chemical Name: Triisodecyl Phosphate CAS No.：25448-25-3 Molecular formula：C30H63O3P Molecular weight：502 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：0.880-0.905 Refractive index (25 ℃)：1.450-1.461 Acid Value (mgKOH/g): 0.20 max. Color (APHA): 50 max. Application PHOSPHITE ANTIOXIDANT HONOX-TDP is a clear liquid which has C30H63O3P as chemical formula. It is a phenol-free trialkyl phosphite which can be used as lubricant additive to improve anti-friction and anti-wear characteristics. It also functions as a sulfur deactivator. It may be used as a stabilizer in PVC, polyester fibers and in polypropylene when regulatory approval for food contact is not required. info at hhochem.com

Chemical Name: Tetraphenyl Dipropylene Glycol Diphosphite CAS No.：80584-85-6 Molecular formula：C30H32O7P2 Molecular weight：566 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：1.164-1.190 Refractive index (25 ℃)：1.557-1.563 Application PHOSPHITE ANTIOXIDANT HONOX-TDD is a specialty diphosphite which is useful as a secondary stabilizer in many polymers, including PVC, Polyurethane, ABS, Engineering plastics etc.. info at hhochem.com

Chemical Name： Mixture of poly-tert-butylphenoldisulfide and stearic acid CAS No.：60303-68-6 ; 57-11-4 Molecular structure Specification Appearance： Light yellow to brown granules Sulfur content，%：26.4-28.4 Softening Point，℃：75-95 Stearic acid, %: 9.0-11.0 Application TB710 acts as a nitrosamine-free vulcanizing agent. It also acts as an antioxidant because of its phenolic structure. Serves as an alternative for TB7 in cases where an agent of lower softening point is required for good dispersion into a rubber compound. It offers high elastomer solubility. It forms monosulphide bridges which are more stable and have very good resistance to heat and ageing when compared with typical polysulfide bridges. It is used for polymers like rubber and in tire industry applications. It contains active sulfur and can vulcanize rubber under heating condition. The vulcanizate has the properties of non-frosting, high tensile strength and excellent heat resistance. It can be used as sulfur donor vulcanizing agent for natural rubber or synthetic rubber. It has a good tackifying effect between different polar rubber such as NR, CR, IIR, EPDM and obtains co-vulcanization effect. In semi-effective and effective vulcanization system, it partially or completely substitutes sulfur, DTDM and other sulfur donors. It does not produce nitrosamine toxic gases in the vulcanization process. It is environmentally friendly additive. It is used for tyres’ inner layer, sidewall, tread, bead filler, sealing gasket, conveyor belt, automobile rubber hose, shock absorption and so on. info at hhochem.com

Chemical Name： Poly-tert-Butylphenoldisulfide CAS No.：60303-68-6 Molecular formula：(C10H14O)x▪(Cl2S2)y Molecular structure Specification Appearance：Yellow to reddish granules Sulfur content，%：29.5-31.5 Softening Point，℃：95-115 Application TB7 is the sulfur donor for natural and synthetic rubbers. It produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics. It 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. In tires TB7 serials are used in the innerliner, chafer, bead apex, sidewalls, and tread. Polymers: Natural rubber and synthetic elastomers. Especially good in curing rubber that contains chlorine such as chlorobutyl and polychloroprene. Synergism: It can be used with most typical rubber accelerators and sulfur. When it is used as a partial replacement for sulfur, TB7 tends to improve dispersion of other additives in the rubber. Crosslink Type: TB7 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance. Non-nitrosamine: TB7 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams. info at hhochem.com

Chemical Name: Poly ( Dipropyleneglycol) Phenyl Phosphite CAS No.：80584-86-7 Molecular formula：C102H134O31P8 Molecular weight：2102 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：1.168-1.180 Refractive index (25 ℃)：1.533-1.538 Application PHOSPHITE ANTIOXIDANT HONOX-PDP is a high molecular weight phosphite antioxidant which has a high phosphorous content. It is available to apply in stabilizer in many polymers, including PVC, PU foam, PU leather, PU coating, synthetic resin, epoxy resin etc. info at hhochem.com

Chemical name: Ditridecyl thiodipropionate CAS No.：10595-72-9 Molecular formular：C32H62O4S Molecular weight： 542.9 Molecular structure Specification Appearance: Colorless or light yellow liquid Specific gravity, g/cm3: 0.931-0.941 Acid value, mgKOH/g: ≤0.5 Color, ( Pt-Co): ≤50 Saponificating value, mgKOH/g : 200-210 Solubility (20℃, g/100g solvent) Soluble in ethyl acetate, methyl ethyl ketone, normal heptane and toluene. Insoluble in water; Application ANTIOXIDANT HONOX-DTDTDP is a liquid secondary stabilizer and antioxidant and have excellent compatibility with resin. It is used for polymers (ABS，PP，PE，and PVC) and has a good synthesize effect in combination with phenolic antioxidant. No toxicity( Oral rat LD50＞10mg/kg). info at hhochem.com