摘要:
A clearcoat coating composition comprises a vinyl or acrylic polymeric resin prepared by reacting a functional group on a vinyl or acrylic polymer, wherein the polymer has a glass transition temperature (Tg)≧40° C. as calculated by the Fox equation, with a reactant that provides a curable functional group that is separated from the polymer backbone by at least two alkylene, cycloalkylene, or arylene groups of at least two carbons each long.
摘要:
Lacquer formulations containing: from 5 to 99.5 wt. % of solids of a polymer component or of a mixture of two or more physically or chemically crosslinking polymer components, (binder components and hardener components), from 0 to 80 wt. % of a low molecular weight component acting as solvent or of a mixture of such low molecular weight components, from 0.5 to 50 wt. % of a silanised, structurally modified pyrogenic silica to the surface of which there are attached alkylsilyl groups (SiCnH2n+1, where n=from 2 to 18) and/or dimethylsilyl groups and/or monomethylsilyl groups, from 0 to 10 wt. % of commercially available additives.
摘要翻译:漆制剂含有:5〜99.5重量% 聚合物组分或两种或更多种物理或化学交联的聚合物组分(粘合剂组分和硬化剂组分)的混合物的固含量为0至80wt。 用作溶剂或这种低分子量组分的混合物的低分子量组分的%,为0.5至50wt。 %的硅烷化结构改性的致热二氧化硅,其表面附着有烷基甲硅烷基(SiC n H 2n + 1,其中n = 2至18)和 /或二甲基甲硅烷基和/或单甲基甲硅烷基,0〜10wt。 %的市售添加剂。
摘要:
A PHOTOELECTROSTATIC MEMBER (SHEET MATERIALS SUCH AS PAPER) COATED WITH A LAYER OF A PHOTOCONDUCTIVE INSULATING MATERIAL SUCH AS ZINC OXIDE DISPERSED IN A SPECIAL POLYURETHANE RESIN PRODUCED FROM A FATTY ACID ESTER OF A POLYHYDRIC ALCOHOL, WHEREIN THE POLYHYDRIC ALCOHOL PORTION OF THE ESTER CONTAINS AT LEAST TWO FREE HYDROXYL RADICALS, AND AN ORGANIC POLYISOCYANATE.
摘要:
A high-solid-content coating composition includes: (A) a hydroxy group-containing acrylic resin having a glass transition temperature (Tg) in a range of 20° C. to 70° C. and a weight average molecular weight in a range of 3,000 to 10,000; (B) a hydroxy group-containing polyester resin being a reaction product of a polyfunctional compound (b-1) having a carboxy group and a hydroxy group in total of three or more in one molecule, a monoepoxide compound (b-2) having a hydrocarbon group having 4 or more carbon atoms, and a caprolactone compound (b-3); and (C) a polyisocyanate compound, in which a solid content at the time of coating is 50 mass % or more.
摘要:
A method for the preparation of polyol from an unsaturated TAG oil that can function similarly to castor oil in certain applications. The method comprises controlled epoxidation of the TAG oil with an acid and an oxidizing agent to obtain a partially epoxidized TAG oil with desired iodine and oxirane values; hydroxylating the partially epoxidized TAG oil using a monoalcohol and a solid acid catalyst to obtain the polyol. The resulting polyols are comprised of a triglyceride structure and hydroxyl values, viscosities, and colors that are similar to castor oil.
摘要:
Acrylic polyols comprising hydroxy functional acrylic copolymers/resin involving an acrylic backbone having modified castor oil sourced hydroxyl functionalities and synthesized by co-reacting modified hydroxy functional Castor Oil with variety of acrylic monomers, styrene or its derivatives and optionally hydroxyalkyl acrylates/methacrylates and ethylenic monomer through solution polymerization in presence of an initiator. The hydroxyl functionality is solely or partially imparted through renewable Castor Oil wherein the resins were synthesized at upto 100% solids and at hydroxyl values ranging from 25-150 (mg KOH/gm). The synthesized resins when cured with suitable polyisocyanates or amino resin cross-linkers provided tough, glossy and chemical & weather resistant coatings.
摘要:
An aqueous crosslinkable coating compositions comprising i) an autoxidisably crosslinkable polymer, ii) a not autoxidisably crosslinkable vinyl polymer bearing acetoacetyl groups and iii) acetoacetyl-reactive groups to crosslink the vinyl polymer.