Block copolymers of propylene and 4-methyl-1-pentene

Details Block copolymers of propylene and 4-methyl-1-pentene Block copolymers of propylene and 4-methyl-1-pentene

1980-04-02

1982-01-19

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...

260 336PQ, 426126, 428161, 525 53, 525247, 525333, 526 79, 526347, 5263486, 526916, 528481, C08F29708

Patent

active

043118100

ABSTRACT:
A propylene copolymer, which comprises units of (A) propylene, (B) a monomer selected from the group consisting of branched alpha-olefins (i.e. 4-methyl-1-pentene), styrene and styrene derivatives (e.g. methyl styrene), and (C) an optional monomer selected from the group consisting of straight-chain alpha-olefins of 2 to 12 carbon atoms other than propylene (e.g. ethylene), and which is defined by its thermal analysis data on a differential scanning calorimeter; and a process for producing the copolymer. Block copolymers are preferable.

REFERENCES:
patent: 3230276 (1966-01-01), Peters et al.
patent: 3457246 (1969-07-01), Cleary
patent: 3529038 (1970-09-01), Chabert et al.
patent: 3700639 (1972-10-01), Hulse et al.
patent: 3732335 (1973-05-01), Hermans et al.

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