发明名称 |
PROCEDURE FOR THE MANUFACTURE OF A FOAMED PLASTIC PRODUCT |
摘要 |
Procedure for the manufacture of a foamed plastic product, in which procedur e a filmlike plastic product (1) is perfoamed e.g. by using foaming agents add ed into the manufacturing process, in such a way that lamellar discontinuities (2), e.g. prefoamed bubbles, are created in the product (1). The product (1) is pressurized with a desired gas, such as nitrogen or air, under positive pressure, causing the gas to diffuse into the product. The product (1) is th en inflated by sujecting it to a heat treatment under reduced pressure during which the product is heated at a temperature below its melting point.</SDOAB >
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申请公布号 |
CA2197499(C) |
申请公布日期 |
2001.04.24 |
申请号 |
CA19952197499 |
申请日期 |
1995.08.16 |
申请人 |
VALTION TEKNILLINEN TUTKIMUSKESKUS |
发明人 |
RAUKOLA, JAAKKO;KIRJAVAINEN, KARI;MINKKINEN, HANNU |
分类号 |
C08J9/00;B29C44/00;B29C44/34;B29K105/04;C08J9/12;(IPC1-7):B29C44/20 |
主分类号 |
C08J9/00 |
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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