- 专利标题: Technique for forming resin-impregnated fiberglass sheets
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申请号: US890614申请日: 1997-07-09
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公开(公告)号: US5773371A公开(公告)日: 1998-06-30
- 发明人: Bernd Karl Appelt , William Thomas Fotorny , Robert Maynard Japp , Kostantinos Papathomas , Mark David Poliks
- 申请人: Bernd Karl Appelt , William Thomas Fotorny , Robert Maynard Japp , Kostantinos Papathomas , Mark David Poliks
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: B29B15/12
- IPC分类号: B29B15/12 ; B29C70/22 ; B29C70/54 ; B32B15/04 ; B32B27/04 ; B32B27/38 ; B32B37/00 ; C03C25/10 ; C03C25/12 ; C03C25/26 ; C03C25/50 ; C08J3/24 ; C08J5/04 ; C08J5/24 ; D06N7/00 ; H01L23/498 ; H05K1/03 ; H05K3/02 ; B32B31/08
摘要:
A method for coating cloth especially fiberglass sheets with a resin and resulting structure is provided. The coating is performed in two steps. In the first step, essentially all of the strands of the fiberglass are coated with the resin solvent mixture while maintaining the interstices or openings essentially free of the solvent mixture. This first coating is then partially cured to the extent that it will not redissolve in a second coating of the same resin solution. The coated fiberglass with partially cured resin thereon is then given a second coating of the same resin mixture which coats the first coating and fills in the interstices between the fibers. This second coating is then partially cured, which advances the cure of the first coating and results in an impregnated fiberglass cloth structure for use as sticker sheets. During lamination, the first coating acts like an impenetrable insulating sheet, preventing resin displacement and, therefore, preventing glass fiber contact with the conductive planes. The second coating is fluid enough to fill in spaces in the planes and to form the adhesive bond to cores and conductive layers.
公开/授权文献
- US5256010A Machine tool 公开/授权日:1993-10-26
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