发明名称 |
METHOD OF PRODUCING OPEN-CELL FOAMED ARTICLES OF CROSS-LINKED POLYOLEFINS |
摘要 |
<p>An open cell foamed article of a cross-linked polyolefin haying a high open-cell ratio and a high degree of expansion is produced by a method which comprises the steps of preparing a foamable and cross-linkable polyolefin composition, forming the composition into a desired shape maintaining its gel percent at zero, decomposing the cross-linking agent and blowing agent concurrently by heating the composition under atmospheric pressure in such conditions that the peak of the ratio of the degree of cross-linking to the degree of decomposition of the blowing agent is not more than 20 and exerting a mechanical deformation to the resulting polyolefin foam to rupture the cell membranes.</p> |
申请公布号 |
CA1170416(A) |
申请公布日期 |
1984.07.10 |
申请号 |
CA19820398468 |
申请日期 |
1982.03.16 |
申请人 |
SANWA KAKO COMPANY LIMITED |
发明人 |
ITO, HIROO;KASANAMI, TAKEO;MIURA, SHUJI |
分类号 |
B29C35/00;B29C44/00;B29C44/56;B29C59/00;B29C67/20;B29K23/00;C08J9/06;C08J9/10;C08J9/38;(IPC1-7):B29D27/00 |
主分类号 |
B29C35/00 |
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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