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公开(公告)号:US3551267A
公开(公告)日:1970-12-29
申请号:US3551267D
申请日:1970-04-06
申请人: ALLIED PROD CORP
发明人: ADDISON WILLIAM P JR
CPC分类号: D21H17/61 , D21H5/00 , D21H27/10 , D21H27/30 , Y10T428/31815 , Y10T428/31823 , Y10T442/3041 , Y10T442/3943 , Y10T442/3951
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公开(公告)号:US3698980A
公开(公告)日:1972-10-17
申请号:US3698980D
申请日:1970-08-03
申请人: ALLIED PROD CORP
发明人: ADDISON WILLIAM P JR
CPC分类号: B32B11/06 , B32B11/10 , B32B37/20 , B32B2262/0253 , D06N5/00 , D21H5/00 , D21H17/61 , D21H27/10 , D21H27/30 , Y10T428/31823
摘要: PAPER, ASPHALT, AND FABRIC OF WOVEN STRANDS OF LONGITUDINALLY ORIENTED POLYPROPYLENE ARE LAMINATED BY A CONTINUOUS METHOD IN SPITE OF THE FACT THAT THE SOFTENING POINT OF POLYPROPYLENE IS BELOW THE LAMINATING TEMPERATURE OF THE ASPHALT. THE RESULTING CARPET WRAP IS MORE DURABLE,
CHEAPER, STRONGER AND BETTER LOOKING THAN PAPER-BURLAP LAMINATES USED HERETOFORE, AND YET HAS MUCH LOWER BULK DENSITY.
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