发明名称 |
Foamable thermoplastic polymers and a method for foaming |
摘要 |
Foamed products are prepared by subjecting a crosslinked polymer such as an ethylene-carbon monoxide copolymer susceptible to heating by high frequency electromagnetic radiation such as microwave or radio frequency which has been imbibed or impregnated with a suitable mechanical or physical blowing agent such as a halogenated hydrocarbon to sufficient high frequency electromagnetic radiation to cause foaming of the polymer.
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申请公布号 |
US4902721(A) |
申请公布日期 |
1990.02.20 |
申请号 |
US19890382451 |
申请日期 |
1989.07.19 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
PHAM, TU-ANH;LANCASTER, GERALD M. |
分类号 |
C08J9/232 |
主分类号 |
C08J9/232 |
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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