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 |