发明名称 |
PROCESS FOR THE PREPARATION OF PHENOLIC FOAM |
摘要 |
The present invention relates to a process and an apparatus for producing phenolic foam laminates with improved surface appearance. The process involves applying pressure on the foam forming mixture through one of its facings by a flexible member. The member is sufficiently flexible to allow continual rise of the foam but also smoothes out any uneven rise under the applied pressure thereby producing a laminate which has a surface immediately below the facing substantially free of any voids, craters or wrinkles. |
申请公布号 |
ZA8501292(B) |
申请公布日期 |
1986.10.29 |
申请号 |
ZA19850001292 |
申请日期 |
1985.02.20 |
申请人 |
BP CHEMICALS LIMITED |
发明人 |
GERALD CYRIL MARKS;PER INGMAR QUIST |
分类号 |
B32B37/24;B29C39/16;B29C39/18;B29C44/10;B29C44/30;B29C67/20;B29K61/04;B29K105/04;B32B5/18 |
主分类号 |
B32B37/24 |
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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