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    • 6. 发明授权
    • Coating compositions containing non-aqueous dispersed polymers having a
high glass transition temperature
    • 含有玻璃化转变温度高的非水分散聚合物的涂料组合物
    • US5763528A
    • 1998-06-09
    • US767919
    • 1996-12-17
    • Robert John BarsottiLaura Ann LewinChristopher Scopazzi
    • Robert John BarsottiLaura Ann LewinChristopher Scopazzi
    • C08G18/63C09D5/46
    • C08G18/633Y10T428/31551
    • A coating composition of a film forming binder and an organic liquid carrier; wherein the binder contains about (a) 10-90% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having a glass transition temperature of at least 20.degree. and the polymer has (i) a core of comprising polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stablizier polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylencially unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC; wherein the monomers of the core and the stabilizer polymeric components are individually selected from the following group of monomers: alkyl methacrylates, alkyl acrylates, wherein the alkyl groups have 1-12 carbon atoms, hydroxy alkyl methacrylate, hydroxy alkyl acrylates, wherein the alkyl groups have 1-4 carbons atoms, styrene, alpha methyl styrene, vinyl toluene, glycidyl methacrylate, glycidyl acrylate, alpha-beta ethylenically unsaturated monocarboxylic acids and any mixtures thereof and the core, stabilizer polymeric component or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having functional components that are capable of reacting with components (b) and/or (c); (b) 0-70% by weight, based on the weight of the binder, of an oligomer having functional groups capable of reacting with component (c); and (c) 10-50% by weight, based on the weight of the binder, of an organic polyisocyanate crosslinking agent.
    • 成膜粘合剂和有机液体载体的涂料组合物; 其中所述粘合剂含有基于粘合剂重量的约(a)10-90重量%的玻璃化转变温度为至少20℃的分散的凝胶状丙烯酸类聚合物,并且所述聚合物具有(i)包含 聚合的烯属不饱和单体,其不溶于有机液体载体并具有化学接枝到其上(ii)基本上线性稳定的聚合物组分,其可溶于有机液体载体并且包含聚合的乙烯基不饱和单体并且具有约500的重均分子量 -20,000由GPC确定; 其中核心单体和稳定剂聚合物组分分别选自下列单体组:甲基丙烯酸烷基酯,丙烯酸烷基酯,其中烷基具有1-12个碳原子,甲基丙烯酸羟烷基酯,丙烯酸羟烷基酯,其中烷基 具有1-4个碳原子,苯乙烯,α-甲基苯乙烯,乙烯基甲苯,甲基丙烯酸缩水甘油酯,丙烯酸缩水甘油酯,α-β-烯键式不饱和一元羧酸及其任何混合物,核心,稳定剂聚合物组分或两者含有至少3重量% 具有能够与组分(b)和/或(c)反应的官能组分的聚合的烯属不饱和单体; (b)基于粘合剂重量的0-70重量%的具有能够与组分(c)反应的官能团的低聚物; 和(c)基于粘合剂重量的10-50重量%的有机多异氰酸酯交联剂。