Random propylene copolymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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Details

C526S348100, C526S348200, C526S125300

Reexamination Certificate

active

07026421

ABSTRACT:
Random copolymers of propylene with other 1-alkenes having up to carbon atoms,whose content of comonomers is in the range from 0.7 to 1.4% by weight if the only comonomer present in the propylene copolymers is ethylene, orwhose content of comonomers is in the range from 0.7 to 3.0% by weight if at least one C4–C10-1-alkene is present as comonomer, andwhose cold-xylene-soluble fraction is from 1.0 to 2.5% by weight if ethylene is present as a comonomer in the propylene copolymers, orwhose cold-xylene-soluble fraction is from 0.75 to 2.0% by weight if the only comonomers present are C4–C10-1-alkenes,and a process for preparing the random copolymers of propylene is described, as is their use for producing films, fibers or moldings, and also the films, fibers and moldings themselves and biaxially stretched films made from random propylene copolymers of this type and processes for their production.

REFERENCES:
patent: 4355144 (1982-10-01), Shiga et al.
patent: 4668753 (1987-05-01), Kashiwa et al.
patent: 6022628 (2000-02-01), Chatterjee et al.
patent: 19533337 (1997-03-01), None
patent: 1974765 (1998-06-01), None
patent: 115 940 (1984-08-01), None
patent: 306 867 (1989-03-01), None
patent: 339 804 (1989-11-01), None
patent: 450 456 (1991-10-01), None
patent: 573 862 (1993-12-01), None
patent: 712 869 (1996-05-01), None
patent: 723 978 (1996-07-01), None
patent: 778 295 (1997-06-01), None
patent: 808 870 (1997-11-01), None

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