发明名称 Coating composition including high molecular weight polycarbodiimide, method of preparing same, and method of preparing coating on a substrate
摘要 A coating composition comprises a high molecular weight polycarbodiimide. The high molecular weight polycarbodiimide is produced via a method. A method of preparing the coating composition and a method of forming a coating on a substrate with the coating composition are also disclosed.
申请公布号 US8778456(B2) 申请公布日期 2014.07.15
申请号 US201313778775 申请日期 2013.02.27
申请人 BASF SE 发明人 Bouguettaya Mohamed
分类号 B05D3/02;B05D1/02 主分类号 B05D3/02
代理机构 Howard & Howard Attorneys PLLC 代理人 Howard & Howard Attorneys PLLC
主权项 1. A method of forming a coating on a substrate, said method comprising the steps of: providing an isocyanate component comprising toluene diisocyanate (TDI); providing a carbodiimidization catalyst; providing a first solvent having a boiling point temperature of from about 50 to about 150° C.; polymerizing the isocyanate component for a first period of time in the first solvent and in the presence of the carbodiimidization catalyst to produce a reaction mixture including at least one carbodiimide compound and the first solvent; combining a second solvent, which is the same as or different from the first solvent, and the reaction mixture; polymerizing the at least one carbodiimide compound for a second period of time in the first and second solvents and in the presence of the carbodiimidization catalyst to produce a high molecular weight polycarbodiimide having a weight average molecular weight of at least about 100,000; and applying a coating composition comprising the high molecular weight polycarbodiimide on the substrate to form the coating.
地址 Ludwigshafen DE