Propylene polymer films and laminated thing manufacture method and products thus obtained

Propylene polymer films and laminated thing manufacture method and products thus obtained

  • CN 1,054,428 A
  • Filed: 02/28/1991
  • Published: 09/11/1991
  • Est. Priority Date: 02/28/1990
  • Status: Abandoned Application
First Claim
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1. , a kind of method of producing propylene polymer films or laminated thing comprises following miscible propylene polymer composition is made film or rolling processing:

  • (A) homo-polypropylene of 10-60 weight part, its isotactic index is greater than 90;

    Or propylene and ethene and (or) a kind of crystalline copolymer of other α

    -alkene, wherein contain propylene and surpass 85% (weight), its isotactic index is greater than 85;

    (B) a kind of multipolymer that mainly contains ethene of 10-40 weight part, it is insoluble to dimethylbenzene in room temperature;

    (C) a kind of amorphous ethylene-propylene copolymer of 30-60 weight part, this multipolymer dissolves in dimethylbenzene in room temperature, contains ethene 40-70% (weight);

    In the described prolylene polymer composition, room temperature dissolves in 135 ℃

    of limiting viscosities in naphthane of dimethylbenzene part, and the ratio that room temperature is insoluble to 135 ℃

    of limiting viscosities in naphthane of dimethylbenzene part is 0.8 to 1.2.

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