发明名称 |
VERFAHREN ZUR HERSTELLUNG EINER PULVERLACKZUSAMMENSETZUNG |
摘要 |
<p>Process for the preparation of a powder lacquer composition based on polyester bya) common or separate heating to a temperature of 120-200° C. of A) 99-40 wt. % polyester precondensates, and/or of monomers usable for the preparation thereof, B) 1-60 wt. % pigments and C) 0-10 wt. % wetting additives and/or further additives which are conventionally used for lacquers, wherein the percentages by weight total 100%,b) homogeneous mixing of the components A), B) and C) with the application of shear forces and with the heating temperature maintained,c) dispersion of the mixture obtained in a dispersing medium at a temperature equal to or above the melting temperature of the starting components A), B) and C) with further polycondensation of the polyester precondensate A), and/or of the monomers,d) cooling of the dispersion and addition of a conventional cross-linking agent for the polyester and optionally of conventional additives, within the temperature range 60 to 140° C.</p> |
申请公布号 |
DE59803674(D1) |
申请公布日期 |
2002.05.08 |
申请号 |
DE1998503674 |
申请日期 |
1998.12.22 |
申请人 |
E.I. DU PONT DE NEMOURS AND CO., WILMINGTON |
发明人 |
GRAEF, KNUT;SIMMROCK, HANS-ULRICH;JACOBS, ALEXANDRA;MOERS, VOLKER;WARD, BENNETT |
分类号 |
C08G63/78;C09D5/03;C09D5/46;C09D167/00;C09D167/02;(IPC1-7):C09D5/03 |
主分类号 |
C08G63/78 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|