| Original document(13 pages) 中文版 |
Closed cell foamed shaped bodies are produced from cross-linked polyolefin by a process that encompasses the steps of filling a closed mould with a foamable and cross-linkable polyolefin composition containing a blowing agent and a cross-linking agent, and the forming of a correspondingly shaped foamable product under pressure, with the cross-linking reaction proceeding without the blowing agent being decomposed, then warming of the foamable cross-linked product which exists to a foaming temp. between a pair of metal plates, with the product being able to expand biaxially within the region left between the metal plates and subsequent warming of the intermediate product thus obtd. under atmospheric pressure in order to be able to expand the intermediate product in all directions to the completely foamed shaped body, while complete decomposition of the remaining blowing agent takes place. |
Application Number
申请号 |
85107290 |
Application Date
申请日 |
1985.08.16 |
| Title 名称 |
Process for the production of closed celled foamed shaped bodies formed of cross-linked polyolefins |
Publication Number
公开号 |
1009122 |
Publication Date
公开日 |
1987.03.04 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
C08J3/24,C08J9/04 |
Applicant(s) Name
申请人 |
Dynamit Nobel AG (DE) Postfach 1261, 5210 Troisdorf |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
YANG SONGJIAN |
| More information 更 多 信 息 |
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