Polymerization medium to prepare multi-block copolymers

Details Polymerization medium to prepare multi-block copolymers Polymerization medium to prepare multi-block copolymers

1996-12-05

1998-09-29

Woodward, Ana

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

Synthetic resins

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

524538, 525931, C08L 77388

Patent

active

058147110

ABSTRACT:
This invention discloses a novel process to prepare multi-block copolymers with high molecular weights from two immiscible polymer segments. In one embodiment, the two polymer segments are reacted in a solvent mixture which comprises N-methyl-2-pyrrolidinone and diglyme. Such polymers are useful for alignment layer applications in display devices.

REFERENCES:
patent: 5028681 (1991-07-01), Peters
patent: 5274065 (1993-12-01), Veith

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