Copolymers of propylene and but-1-ene and uses thereof

Details Copolymers of propylene and but-1-ene and uses thereof Copolymers of propylene and but-1-ene and uses thereof

1989-03-23

1990-05-15

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526142, 526159, 5263486, C08F 200, C08F 1004, C08F 1014

Patent

active

049259024

ABSTRACT:
The invention concerns copolymers of propylene and but-1-ene in which the proportion of units derived from but-1-ene is from 10 to 40% by weight and the proportion of isolated ethyl branches which they contain is at least equal to the square of the proportion [P] of units derived from propylene contained in said copolymers. The copolymers of the invention can be used for the production of heat-sealable films.

REFERENCES:
patent: 3923758 (1975-12-01), Carter
patent: 4168361 (1979-09-01), Oda
patent: 4360650 (1982-11-01), Desvignes
patent: 4367322 (1983-01-01), Shiga

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