发明名称 |
PROCESS FOR THE PREPARATION OF A COMPOSITION FOR USE IN THE PREPARATION OF THERMOSETTING POWDER PAINTS |
摘要 |
The invention relates to a process for preparing a composition consisting essentially of a polymer and a crosslinking agent for use in the preparation of thermosetting powder paint which comprises mixing a polymer that is solid at room temperature with a crosslinking agent, said polymer and said crosslinker having complementary reactive groups, at a temperature at which the viscosity of the polymer (measured according to Emila) is less than 5000 dPas, in a means for achieving a homogeneous composition in such a short time that less than 20 % of the reactive groups of one of either the polymer or crosslinking agent has reacted, and subsequently cooling and comminuting the composition. The mixing is preferably effected in a static mixer at a temperature higher than 140 DEG C. |
申请公布号 |
EP0698053(A1) |
申请公布日期 |
1996.02.28 |
申请号 |
EP19940917180 |
申请日期 |
1994.05.04 |
申请人 |
DSM N.V. |
发明人 |
VAN AAKEN, JOSEPHUS, MARTINUS;HOEDEMAKERS, GUILLAUME, FRANCISCUS, MARIA;VAN DER BAS, JOHANNES, SIMON;VAN DE WERFF, ADRIANUS, JOHANNES |
分类号 |
C08G59/18;C08J3/20;C08J3/24;C09D5/03;C09D163/00;C09D167/00;(IPC1-7):C08J3/20 |
主分类号 |
C08G59/18 |
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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