Chemical Auxiliaries

Chemical name: [3-[3-(2H-Benzotriazol-2-yl)-5-(1,1-dimethylethyl) , -4-Hydroxyl phenyl]-1-oxopropyl]-hydroxypoly(oxo-1,2-ethan , ediyl) CAS No.:104810-47-1, 104810-48-2, 25322-68-3 Molecular structure Specification Appearance: Yellowish to light amber liquid Purity: 104810-47-1：36.0-38.0% 104810- , 48-2：50.0-52.0% 25322-68-3：12.00% Transm , ittance: 460nm 95.0%min 500nm 97.0%min Application UV 1130 is a type of benzotriazole UV absorber which is widely used in coatings. These combinations improve the durability of clear coats by inhibiting or retarding the occurrence of failures such as gloss reduction, cracking, color change, blistering and delamination. The product is easy to emulsification, especially suitable for aqueous system. It is suitable for industrial and automotive coatings. Beside, its broad UV absorption allows efficient protection of light sensitive base coats or substrates such as wood and plastics. info at hhochem.com

Chemical name: 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methyl phenol CAS No.：125304-04-3 Molecular formular：C25H35N3O Molecular weight：393.6 Molecular structure Specification Appearance: Light amber viscous liquid Assay, %: ≥95 Ash, %: ≤0.1 Loss on Drying, %: ≤2.0 Transmittance: 460nm≥ 95% 500nm≥97% Application UV ABSORBER HOSORB-UV571 is a liquid benzotriazole type UV absorber which imparts excellent light stability to the various polymers. It can be used for thermoplastic PUR, coating, the rigid and plastic PVC, PVB, PMMA, EVA, heat curing unsaturated resin, PA, PET , PUR coil, PP fiber. It is also suitable for latice, wax, adhesive and styrene copolymer, elastomer and polyolefin. info at hhochem.com

Chemical name: 2-Hydroxy-4-n-octoxybenzophenone CAS No.：1843-05-6 Molecular formular：C21H26O3 Molecular weight：326 Molecular structure Specification Appearance: Pale yellow crystalline powder Melting point，℃：47-49 Purity (HPLC), %: ≥ 99 Ash, %: ≤0.1 Loss on Drying, %: ≤0.5 Transmittance 450nm≥90% 500nm≥95% Solubility (20℃, g/100ml solvent) Acetone:43 Chloroform:61 Ethanol:4 Ethyl Acetate:44 n-Hexane:12 Methanol:2 Methylene chloride:67 Toluene＞50 Water＜0.01 Application UV ABSORBER HOSORB-531 is a light stabilizer with good performance, capable of absorbing the UV radiation of 240-340 nm wavelength with the characteristics of light color, nontoxic , good compatibility,small mobility, easy processing etc. It can protect the polymer to its maximum extent, helps to reduce the color. It can also delay the yellowing and obstacle the loss of its physical function. It is widely applied to PE,PVC,PP,PS,PC organic glass, polypropylene fiber, ethylene- vinyl acetate etc. Moreover, it has very good light-stability effect on drying phenol aldehyde, varnish of alcohol and acname, polyurethane, acrylate, expoxnamee etc. info at hhochem.com

Chemical name: 95% Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1- dimethylethyl) , -4-hydroxy-C7-9-branched and linear alkyl esters,and 5% 1-methoxy-2- propyl acetate CAS No.：127519-17-9 Molecular Formula: C27H39N3O3 Molecular Weight: 451.61 Molecular structure Specification Appearance: Pale yellow liquid Purity: ≥93%(HPLC) Viscosity, 20℃: 2600-3600mPas Density, 20℃: 1.07g/cm³ Application UV ABSORBER HOSORB-UV 384-2 is non-toxic, non-flammable, non-explosive, non- corrosive, good storage stability. It is recommended for automotive coatings and general industrial applications i.e. coil coatings, wood coatings. It is easy incorporation into water borne systems. The performance provided by UV 384-2 can be enhanced when used in combination with a HALS stabilizer such as HLAS-292. info at hhochem.com

Chemical name: Methylene bis [(3-(2-benzotriazolyl)-2-hydroxy-5-tert-octylpheny , l) CAS No.：103597-45-1 Molecular formular：C41H50N6O2 Molecular weight：658.9 Molecular structure Specification Appearance: Slightly Yellow powder Melting point，℃：195-198 Assay by HPLC, %: ≥99 Ash, %: ≤0.1 Volatility, %: ≤0.3 Transmittance: 460nm≥ 97% 500nm≥98% Application UV ABSORBER HOSORB-UV360 is a highly effective ultraviolet light absorber with strong absorbance in the 300-400nm region. It provides excellent compatibility and low volatility. It is particularly suitable for processing and aging conditions where high temperature, low volatility and good compatibility are required, such as complex molding, fibers, sheets, laminated or coextruded semi-finished parts.It is suitable for PE, PP, PC, POM, PVC, PA, PE, PU, ABS resin, elastomer, adhesive etc. The synergism can be realized when it is combined to use with HALS or antioxidant. info at hhochem.com

Chemical name: 2- (2'-Hydroxy-5'-tert-octylphenyl)benzotriaz , ole CAS No.：3147-75-9 Molecular formular：C20H25N3O Molecular weight：323 Molecular structure Specification Appearance: White powder Melting point，℃：103-105 Assay (HPLC), %: ≥99 Ash, %: ≤0.1 Loss on drying, %: ≤0.3 Transmittance 450nm≥98% 500nm≥99% Solubility (20℃, g/100ml solvent) Acetone:9 Benzene:32 Chloroform:37 Ethyl acetate:15 n-Hexane:6 Methanol:0.6 Methylene chloride:38 Water＜0.01 Application UV ABSORBER HOSORB-329 is excellent benzotriazole ultraviolet absorbent with effective absorption of ultraviolet radiation in 270-380 nm region. It is suitable for polyester, rigid PVC, PS, PMMA, PC, ABS resin etc. It is particularly suitable for the protection of polycarbonates. In transparent products and high temperature processing of engineering plastics, its effect is excellent. It can also be used for polyolefin. info at hhochem.com

Chemical name: 2-(2'-Hydroxy-3'-tert-butyl-5'-methylp , henyl)-5-chlorobenzortriazole CAS No.: 3896-11-5 Molecular formula:C17H18ClN3O Molecular weight: 315.8 Molecular structure Specification Appearance: Slightly yellow powder Assay (HPLC),%: ≥99 Melting point，℃:137-142 Ash, %: ≤0.1 Loss on Drying, %: ≤0.5 Transmittance, %: 460nm≥93% 500nm≥96% Solubility (20℃, g/100ml solvent) Water＜0.01 Acetone:1 n-Hexane: 1 Benzene: 10.5 Ethyl acetate: 2 Toluene: 11.3 Methanol: 0.1 Chloroform: 11 Methylene chloride: 4.3 Ethanol: 0.1 Cyclohexane: 6.4 Application UV ABSORBER HOSORB-326 has a wide range of indirect food approvals in polyolefin. It has a low volatility at high temperatures and high resistance to thermal degradation and can therefore be used without significant loss or decomposition in the polyolefin compounding and molding processes. It is especially suited for polyolefins and cold cured polyesters. It protects polymers from UV radiation helping to preserve the original appearance and physical integrity, especially for polyolefins and polyester resins. info at hhochem.com

Chemical name: N-(2-Ethoxyphenyl)-N‘-(4-ethylphenyl)-ethlyene diamide CAS No.: 23949-66-8 Molecular formula: C18H20N2O3 Molecular weight: 312.37 Molecular structure Specification Appearance: White crystalline powder Assay, %: ≥99 Melting point，℃：122-127℃ Transmittance: 460nm ≥95% 500nm ≥97% Loss on Drying, %: ≤0.5 Application UV ABSORBER UV 312  has a low volatility and good thermal stability. It is particularly effective for short-wavelength UV light. It can be used in solventborne coatings and general industrial coatings to provide standard UV stabilization performances. In particular, it is recommended for UV cured systems. It is suitable for polyesters, PVC plastisol, polyurethanes, polyamides, polymethylmethacrylate, polybutyleneterephtalate, polycarbonates and cellulose esters.  It is particularly effective include polyamides, PVC (rigid and flexible), polyesters (thermoplastic and thermoset). infor at hhochem.com

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