发明名称 |
HYPERBRANCHED POLYOL MACROMOLECULE, METHOD OF MAKING SAME, AND COATING COMPOSITION INCLUDING SAME |
摘要 |
A hyperbranched polyester polyol macromolecule, having a plurality of both embedded and exterior hydroxyl groups thereon, may be synthesized in a 5 polymerization reaction having several steps. The hyperbranched polyol includes a central nucleus, a first chain extension, an inten-nediate substituent and a second chain extension. The central nucleus is a hydrocarbon structure with a plurality of oxygen atoms. The first chain extender is attached to the central nucleus and includes a carboxylic ester group and a plurality of hydroxyl groups. The intermediate substituent is attached to the first chain extender, and is a polyfunctional carboxylic acid or anhydride thereof. The preferred intermediate substituent is a cyclic compound. The second chain extension is attached to the inten-nediate substituent. The preferred second chain extension includes a glycidyl ester or epoxy. Methods of making a hyperbranched polyester polyol are also disclosed. Coating compositions in which the hyperbranched polyol is reacted with an aminoplast or with an isocyanate are also encompassed by the invention.
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申请公布号 |
WO0146296(A1) |
申请公布日期 |
2001.06.28 |
申请号 |
WO2000US30556 |
申请日期 |
2000.11.06 |
申请人 |
BASF CORPORATION;RAMESH, SWAMINATHAN |
发明人 |
RAMESH, SWAMINATHAN |
分类号 |
C08G63/123;C08G63/60;C08G63/91;C08G83/00;C09D167/00;C09D201/00;(IPC1-7):C08G83/00 |
主分类号 |
C08G63/123 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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