发明名称 |
Melt-blending method of forming pigmented powder coatings |
摘要 |
An improved method of forming a pigmented powder coating composition of the kind wherein the constituents are melt-extruded and the solidified extrudate then ground into a powder is provided. In the improved method, the non-pigment constituents are introduced into a melt-extruder and a pigment dispersion is simultaneously introduced into the extruder at a point downstream of the introduction of the non-pigment constituents. Powder coatings produced by this improved method display enhanced appearance and gloss.
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申请公布号 |
US4320048(A) |
申请公布日期 |
1982.03.16 |
申请号 |
US19800164141 |
申请日期 |
1980.06.30 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HARMUTH, CHARLES M. |
分类号 |
C08J3/205;C09D5/03;C09D5/46;(IPC1-7):C08J3/20 |
主分类号 |
C08J3/205 |
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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