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1. 发明授权

US4302489A Process for producing a foam sheet having an embossed pattern 失效
标题翻译：用于制造具有压花图案的泡沫片材的方法
公开(公告)号：US4302489A
公开(公告)日：1981-11-24
申请号：US205072
申请日：1980-11-10
申请人： Kenro Hattori , Takeshi Ogawa , Minoru Ochiai , Takeshi Tomikawa , Takeji Ikeda
发明人： Kenro Hattori , Takeshi Ogawa , Minoru Ochiai , Takeshi Tomikawa , Takeji Ikeda
IPC分类号： C08J9/06 , B29C44/00 , C08J9/10 , D06N3/06 , D06N7/00 , B05D5/00
CPC分类号： C08J9/101 , D06N3/06 , D06N7/0015 , D06N7/0018 , C08J2327/06 , Y10S264/82
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.
摘要翻译：根据本发明的具有压纹图案的发泡体片的制造方法，以脂肪族酮类溶剂为主要成分的涂层本身不能以包含偶氮二甲酰胺为主要成分的发泡剂的分解本身不能实现，以含有特定胺或胺和发泡剂的可发泡聚氯乙烯树脂片材的表面的选定部分的形式印刷，然后将可发泡片材加热以使其发泡。由于发泡剂分解而产生的气体的量在特定的胺或胺与脂族酮类溶剂之间的相互作用下在打印涂层的部分中大大降低，因此，未印刷发泡片材的部分比印刷部分发泡得更大，与印刷部分相比，未印刷部分升高，从而在生产的泡沫片材的表面上呈现压花图案的外观。

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