THERMOFORMED PRODUCT OF POLYPHENYLENEETHER RESIN SHEET,申请号JP19920083136-传众专利搜索

THERMOFORMED PRODUCT OF POLYPHENYLENEETHER RESIN SHEET

申请公布号：JPH05245919(A)

申请号：JP19920083136

申请日期：1992.03.05

申请公布日期：1993.09.24

申请人：

ASAHI CHEM IND CO LTD

发明人：TOYOUCHI KAORU;MIZUTANI YUKIHISA;KITAOKA HIROSHI

分类号：B29C51/00;B29K71/00;C08J5/18;(IPC1-7):B29C51/00

主分类号：B29C51/00

摘要：PURPOSE:To enable more beautiful appearance to be obtained by raising stability to heat of a thermoformed product by a method wherein the thermoformed product of a specific value in relative specific gravity is formed from polyphenyleneether resin sheet having respective specific contents in volatile component and water content. CONSTITUTION:Polyphenyleneether resin wherein a volatile component content of a sheet is 300-2000ppm and a moisture content is 250ppm or under is used, and a required sheet thermoformed product is obtained by thermoforming such as vacuum forming, air-pressure forming, etc. Inferiority of appearance such as generation of irregularities on a surface of the thermoformed product caused by foaming materials in a heating process of polyphenyleneether or the like is prevented from occurring thereby, and beautiful appearance is enabled to be obtained. The polyethyleneether resin is a polymer expressed by the general formula rightmentioned, which is obtained by, for example, making phenol as raw materials react with oxygen under presence of a complex of copper or manganese. In the formula, R1, R2 respectively represent a monovalent residual group of an alkyl group, an aryl group, etc.