发明授权
- 专利标题: Process for producing a foam sheet having an embossed pattern
- 专利标题(中): 用于制造具有压花图案的泡沫片材的方法
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申请号: US205072申请日: 1980-11-10
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公开(公告)号: US4302489A公开(公告)日: 1981-11-24
- 发明人: Kenro Hattori , Takeshi Ogawa , Minoru Ochiai , Takeshi Tomikawa , Takeji Ikeda
- 申请人: Kenro Hattori , Takeshi Ogawa , Minoru Ochiai , Takeshi Tomikawa , Takeji Ikeda
- 申请人地址: JPX Tokyo
- 专利权人: Kohkoku Chemical Industry Co. Ltd.
- 当前专利权人: Kohkoku Chemical Industry Co. Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX54/149781 19791119
- 主分类号: C08J9/06
- IPC分类号: C08J9/06 ; B29C44/00 ; C08J9/10 ; D06N3/06 ; D06N7/00 ; B05D5/00
摘要:
According to the process for producing a foam sheet having an embossed pattern of the present invention, a coating containing an aliphatic ketone type solvent as its main ingredient and being incapable by itself of substantially inhibiting decomposition of a blowing agent comprising azodicarbonamide as its main ingredient is printed in the form of a pattern on selected portions of the surface of a foamable polyvinyl chloride resin sheet material containing a specific amine or amines and the blowing agent, and the foamable sheet material subsequently is heated to foam it. The quantity of gas given off due to decomposition of the blowing agent decreases to a large extent in the portions on which the coating has been printed by reason of interaction between the specific amine or amines and the aliphatic ketone type solvent and, consequently, the unprinted portions of the foamable sheet material are caused to foam to a greater extent than the printed portions, and the unprinted portions are raised in contrast to the printed portions, thereby presenting an appearance of an embossed pattern on the surface of the produced foam sheet.
公开/授权文献
- US5398994A Vehicle pneumatic seat lift apparatus 公开/授权日:1995-03-21
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