Novel propylene copolymers

Details Novel propylene copolymers Novel propylene copolymers

1980-10-20

1981-09-22

Levin, Stanford M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

428336, 428339, 428412, 428483, 428516, 4284761, 525247, 5263481, 5263482, C08F29708

Patent

active

042911400

ABSTRACT:
A new propylene copolymer comprises a propylene homopolymer block and a terpolymeric random copolymer block of propylene, ethylene, and hexene-1 and is further characterized in that: (a) the proportion therein of the propylene homopolymer block is 97 to 80 percent by weight; (b) the terpolymeric random copolymer block has been so copolymerized that the contents therein of the propylene, ethylene, and hexene-1 based on their respective monomers are 80 to 98 percent, 5 to 1 percent, and 15 to 1 percent, respectively, all percentages being by weight; and (c) the intrinsic viscosity thereof in a decalin solution at 135.degree. C. is 0.3 to 15 dl/g.

REFERENCES:
patent: 3530107 (1970-09-01), Yoshiora et al.

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