发明名称 Automotive molded roof material and process for producing the same
摘要 A process for producing an automotive molded roof material is provided which comprises sheeting a foamable sheet forming composition comprising a specified propylene resin, a glass fiber, a radical initiator, a crosslinking auxiliary and a foaming agent in specific proportions into a foamable sheet, lining one side of the foamable sheet with a backing sheet so as to integrate these and irradiating the foamable sheet with ionizing radiation to thereby crosslink the propylene resin, followed by heating the foamable sheet so as to cause the foamable sheet to foam, placing a cover sheet on the other side of the foamed sheet before the sheet cools to solidify and press molding the cover sheet on the foamed sheet to cover. There is also provided an automotive molded roof material produced by the above process. An automotive molded roof material is obtained which can be recycled, is lightweight and has high rigidity.
申请公布号 US5656675(A) 申请公布日期 1997.08.12
申请号 US19950555203 申请日期 1995.11.08
申请人 MITSUI PETROCHEMICAL INDUSTRIES, LTD. 发明人 KOBAYASHI, TOSHIO;MORITA, KEINOSUKE;SUZUKI, SEISHI
分类号 C08K5/00;C08K7/14;C08L53/00;(IPC1-7):C08J9/04 主分类号 C08K5/00
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