发明名称 |
Foamable molding compositions |
摘要 |
A Chemical Blowing Agent (CBA) concentrate was developed comprising a modifying agent and a chemical blowing agent. The CBA is characterized in that its decomposition products contain a primary amine. The modifying agent is a blend of a maleic anhydride copolymer and a butadiene based rubber. It was surprisingly found that resin degradation which often accompanies foam moldings using a CBA of the present type and is expressed in terms of a reduction in the molecular weight of the resin, is much reduced upon the incorporation of the modifying agent and chemical blowing agent of the invention. The concentrate may optionally further comprise a polymeric resin component.
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申请公布号 |
US4851453(A) |
申请公布日期 |
1989.07.25 |
申请号 |
US19890305826 |
申请日期 |
1989.02.02 |
申请人 |
MOBAY CORPORATION |
发明人 |
WHITE, ROGER J.;KRISHNAN, SIVARAM |
分类号 |
C08J9/10 |
主分类号 |
C08J9/10 |
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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