Chemical Auxiliaries

Chemical name: 2-Benzyl-2-(dimethylamino)-4'-morpholinobutyro , phenone CAS No.: 119313-12-1 Molecular formula: C23H30N2O2 Molecular weight: 366.5 Molecular structure Specification Appearance: Slightly yellow powder Purity, %: ≥ 99 Melting range, °C: 110 - 119 Volatility, %: ≤ 0.3 Application Photoinitiator 369 is a highly efficient photoinitiator which combines fast cure response in dark colors, low migration and reduced odor on UV exposure. It is used for the photopolymerization of free radicals. It is used in UV curing inks and coatings. It is very suitable for the curing of UV colored system, especially the blue and black color phase system UV curing, and even the systems containing ultraviolet absorbents. It is also applied to the offset printing, silk screen printing ink, printing plates etc. It can be used in combination with other photoinitiators such as 184, 651, 907, ITX. info at hhochem.com

Chemical name: 1-Hydroxycyclohexyl Phenyl Ketone CAS No.：947-19-3 Molecular formular：C13H16O2 Molecular weight：204.26 Molecular structure Specification Appearance: White crystalline powder Purity, %: ≥99 Melting point, ℃: 46 - 49 Volatility, %: ≤ 0.2 Light transmittance, %: 425nm ≥ 98 500nm ≥ 99 Application Photoinitiator 184 has a high light triggered activity, good thermal stability and does not produce the yellowing. It is the most commonly used photoinitiator maximum absorption wavelength of 333nm. It is used as an effective UV curing initiator and non - variable yellow photoinitiator. It is widely used in copying varnish, plastic coatings, wood paints, and so on. It is added with other photopinitiator. info at hhochem.com

Chemical name: Propanedioic acid, [(4-methoxyphenyl)-methylene]-dimethyl ester CAS No.: 7443-25-6 Molecular formula: C13H14O5 Molecular weight: 250 Molecular structure Specification Appearance: White to crystalline powder Assay, %: ≥99 Melting point，℃: 55-59℃ Loss on Drying, %: ≤0.5 Transmittance: 425nm≥95% 500nm≥96% Application UV ABSORBER UV PR-25 exhibits excellent absorbtion especially in the UVB-range. It is colorless and even in high concentration in the resin does not lead to any discoloration. It doesn’t form colored complexes with metal ions. Recommended for use in PVC, polyesters, PC, polyamides, styrene plastics, EVA copolymers, and cellulosics, particular in rigid PVC materials.  It can be also used in solventborne coatings and general industrial coatings where stabilization requirements remain moderate.It is particularly recommended for UV cured systems and clear coats where colour neutrality is essential. info at hhochem.com

Chemical name: PP carrier 50% Hindered Amine 2,2,6,6-tetramethyl-4-piperidinyl stearate CAS No.(HALS)：167078-06-0 CAS No.(PP): 9003-07-0 Molecular structure Specification Appearance: White granule powder Content, %: 47.5 – 52.5 Ash, %: ≤0.5 Melting point, ℃: ≥28 Saponification value, mgKOH/g: 128-137 Transmittance, % 425nm≥90 450nm≥95 Solubility Insoluble in water and toluene etc. Application LIGHT STABILIZER UV3853PP5 is s a hindered amine light stabilizer(HALS) in concentrate form which contains 50% active in PP carrier for general use in automotive and injection molding applications. It is also suitable for broad range of polymers and applications, including PP film/tape/injection molding applications, TPO, and PE film/tape/injection molding. It is also can be used for polyacetals, polyamides, styrenic polymers, and PUR. The end use of it include PP and TPO automotive parts, TPO roofing membranes, PE crates, and PP outdoor furniture. info at hhochem.com

Chemical name: 2,2,6,6-tetramethyl-4-piperidinyl stearate CAS No.：167078-06-0 Molecular formular: C27H53NO2 Molecular weight：423.7 Molecular structure Specification Appearance: White waxy solid Purity, %: ≥ 99 Melting point, ℃: ≥ 28 Ash, %: ≤0.5 Saponification value, mgKOH/g: 128-137 Transmittance, % 425nm≥90 450nm≥95 Solubility Not soluble in water; Soluble in methylbenzene and some other organic solvent Application LIGHT STABILIZER UV3853 is a new type of hindered amine light stabilizer, which protects the plastic from the damage of UV light. It has excellent stability to the surface of plastic such as luster, pulverization, yellowing. It has good compatibility, no phenomenon of bloom nor migration. It has excellent synergy with other stabilizer, especially with HALS and uv absorber of high molecular weight. It is used for polyolefin plastics, PU, ABS resin, paint, adhesives, rubber, etc. info at hhochem.com

Chemical name: 2-(2'-Hydroxy-5'-methylphenyl)benzotriazol , e CAS No.：2440-22-4 Molecular formula:C13H11N3O Molecular weight: 225.3 Molecular structure Specification Appearance: White to yellowish crystal powder Melting point，℃:128-132 Assay (HPLC), %: ≥99 Ash, %: ≤0.1 Volatility, %: ≤0.5 Light transmittance, %: 440nm≥94% 500nm≥97% Solubility (20℃, g/100ml solvent) Acetone:3 Benzene:7 Butyl Acetate:3 Carbitol:2 Chloroform:13 Ethanol:0.2 Ethyl Acetate:3.5 n-Hexane:0.8 Cyclohexane:1 Methanol:0.2 Methylene Chloride:16 MEK:4 Styrene:7 Toluene:6 Water ＜0.01 Application UV ABSORBER HOSORB-UVP is a benzotriazole type ultraviolet light absorber (UVA). The max absorbing wavelength range is 270-380nm. It is widely used in a variety of polymers including polypropylene polycarbonate, polyethylene, polyurethane, unsaturated resin, ABS resin, epoxy resin, PMMA, PVC, elastomer, adhesive etc. It almost does not absorb visible light, especially for colorless and transparent products. info at hhochem.com

Chemical name: 2,2’-(1,4-phenylene)bis-4H-3,1-benzoxazin-4-one< , br>CAS No.：18600-59-4 Molecular formular：C22H12N2O4 Molecular weight：368.34 Molecular structure Specification Appearance: White to off-white crystalline powder Melting point，℃：≥310 Assay, %: ≥98 Ash, %: ≤0.1 Loss on Drying: ≤0.5 Application UV ABSORBER HOSORB-UV3638 is a highly efficient benzoxazinone type UV absorber, which is distinguished by its superior low volatility and strong & broad range of UV light absorption together with no color contribution & excellent stabilization for polymers. It is designed to meet the demanding high temperature requirements for processing engineering plastics such as Nylon, PC,PET,PBT and PPO. It is also highly effective in other polymers such as polyamides, polyacetals, polyolefins fibers, styrenics, elastomers where long term UV light stability is required. info at hhochem.com

Chemical name: N-Hexadecyl-3, 5-di-tert-butyl-4-hydroxybenzoate CAS No.: 67845-93-6 Molecular formula:C31H54O3 Molecular weight: 475 Molecular structure Specification Appearance: White powder Purity (HPLC), %: ≥99 Melting point,℃: 59-63 Ash, %: ≤0.1 Loss on Drying, %: ≤0.5 Application UV absorber UV2908 belongs to the class of hindered hydroxybenzoate light stabilizer. It is widely used in polyolefins such as PP, PE, polycarbonate and the systems containing flame retardants and thioesters etc. It can be used alone or in combination with benzophenone UV stabilizer or phosphite antioxidant, showing good synergistic effect. info at hhochem.com

Chemical name: 2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-[(hexyl)oxy] , -phenol CAS No.：147315-50-2 Molecular formular：C27H27N3O2 Molecular weight：425 Molecular structure Specification Appearance: Slightly yellow powder Melting point，℃：147.0-151.0 Assay by HPLC, %: ≥98.5 Ash, %: ≤0.1 Volatility, %: ≤0.5 Light transmittance, %: 450nm≥ 86.0 500nm≥98.0 Application UV ABSORBER HOSORB-UV1577 is triazine ultraviolet absorber. It is used in polyalkene terephthalate and naphthalates, linear and branched polycarbontes, modified polyphenylene ether compounds, and various high performance plastics. It is also used in PC, ABS, PBT, PA and copolymers as well as in reinforced, filled and/or flame retarded compounds. info at hhochem.com

Chemical name: 2-(4,6-Bis-(2,4-dimethylphenyl)-1,3,5-triazin-2-yl , )-5-(octyloxy)- phenol CAS No.：2725-22-6 Molecular formular：C33H39N3O2 Molecular weight：509.7 Molecular structure Specification Appearance: Yellowish powder Melting point，℃：89-93 Assay, %: ≥98 Ash, %: ≤0.1 Loss on Drying, %: ≤0.3 Application UV ABSORBER HOSORB-UV1164 is triazine ultraviolet absorber. It has low volatility and good compatibility with polymer. It is used for POM, PA, PC, PE, PET, ABS resin etc. It is especially suitable for nylon and engineering plastics. info at hhochem.com

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