13.
    发明专利
    未知

    公开(公告)号:NO981917L

    公开(公告)日:1998-11-03

    申请号:NO981917

    申请日:1998-04-28

    Abstract: A polymer composition and fiber, film or sheet prepared therefrom, which contains (i) an olefin polymer containing an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, and ii) a stabilizer system distributed throughout the polymer, the stabilizer system including (a) a phosphite selected from 2,2',2''-nitriloÄtriethyl-tris(3,3',5,5'-tetra-tert.butyl-1,1-biphenyl -2,2'-diyl)phosphiteÜ and tris(2,4-di-tert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine. Also disclosed is a method for preparing a polyolefin fiber, film or sheet, which includes adding the above stabilizer to an olefin polymer containing an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, thereby producing a stabilized olefin polymer; and extruding the stabilized olefin polymer through a die.

    18.
    发明专利
    未知

    公开(公告)号:PT849318E

    公开(公告)日:2000-12-29

    申请号:PT97121903

    申请日:1997-12-12

    Inventor: BECKER RONALD F

    Abstract: Depolymerization during melt processing of poly(methyl methacrylate) that is grafted onto a backbone of propylene polymer material is retarded by adding 0.025 parts to 5.0 parts of a hydroxylamine compound per hundred parts of the graft copolymer. The methyl methacrylate can be copolymerized with another monomer such as methyl acrylate.

    19.
    发明专利
    未知

    公开(公告)号:DE69702694D1

    公开(公告)日:2000-09-07

    申请号:DE69702694

    申请日:1997-12-12

    Inventor: BECKER RONALD F

    Abstract: Depolymerization during melt processing of poly(methyl methacrylate) that is grafted onto a backbone of propylene polymer material is retarded by adding 0.025 parts to 5.0 parts of a hydroxylamine compound per hundred parts of the graft copolymer. The methyl methacrylate can be copolymerized with another monomer such as methyl acrylate.

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