发明名称 |
Hydroxy-functionalized polyesters |
摘要 |
A hydroxyfunctional polyester with an OH number of 50-300 mg/g containing structural elements derived from di- or multifunctional acids A, especially carboxylic acid, aliphatic tri- or multifunctional alcohols B and at least 6C aliphatic monocarboxylic acids, where component A contains at least one tri- or multifunctional acid or their anhydrides. A hydroxyfunctional polyester with an OH number of 50-300 mg/g containing structural elements derived from di- or multifunctional acids A, especially carboxylic acid, aliphatic tri- or multifunctional alcohols B and at least 6C aliphatic monocarboxylic acids, where component A has an acid functionality of at least 2.1 and contains at least one tri- or multifunctional acid or their anhydrides. Independent claims are included for: (1) a process for preparation of the polyesters by first step involving reaction of alcohol B with monofunctional carboxlylic acids C in such a ratio that the condensation product BC has on average 1.5 to 3.5 OH groups per molecule and in a second step the branched OH group containing condensation product is reacted with di- or multifunctional acids A; (2) a solid-rich coating agent containing polyester; and (3) a resin paste containing the coating agent.
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申请公布号 |
EP1334989(A2) |
申请公布日期 |
2003.08.13 |
申请号 |
EP20030001241 |
申请日期 |
2003.01.21 |
申请人 |
SURFACE SPECIALTIES AUSTRIA GMBH |
发明人 |
FRIEDL, MAXIMILIAN, DR.;URBANO, EDMUND, DR.;EVRARD, DIDIER;CHEVILLOTTE, JEAN-PIERRE |
分类号 |
C08G63/20;C09D167/00;(IPC1-7):C08G63/00 |
主分类号 |
C08G63/20 |
代理机构 |
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