发明名称 |
Temperature-stable pigment-colored plastic compositions, process for producing them and means for conducting the process |
摘要 |
Plastics are described which contain, in intimate contact with the pigments, boric acid in a quantity of 1 to 20% by weight, preferably 2 to 15% by weight, of the dry pigment. Also described is the process for producing said plastics, in which the usual plastic granules or powders are mixed with the above-mentioned quantities of boric acid before, during or after addition of the pigment, and the boric acid is brought into intimate contact with the pigment before further processing, of the particulate plastic is mixed with the pigment containing the above mentioned quantities of boric acid before being subjected to further processing under thermal stress.
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申请公布号 |
US5207828(A) |
申请公布日期 |
1993.05.04 |
申请号 |
US19920905141 |
申请日期 |
1992.06.23 |
申请人 |
DR. HANS HEUBACH GMBH & CO KG |
发明人 |
RESSLER, INGRID;ADRIAN, GERHARD;HORN, WALTER;GRAY, DONALD |
分类号 |
C08J3/20;C08K3/38;C09C3/06 |
主分类号 |
C08J3/20 |
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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