Process for making vinyl aromatic/allylic alcohol copolymers

Details Process for making vinyl aromatic/allylic alcohol copolymers Process for making vinyl aromatic/allylic alcohol copolymers

1994-07-06

1995-08-22

Zitomer, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 86, 526 87, 526227, 526232, 526293, C08F21208, C08F21608

Patent

active

054441412

ABSTRACT:
An improved process for making vinyl aromatic/allylic alcohol copolymers is disclosed. Gradual addition of a free-radical initiator during the course of the polymerization results in a substantial increase in the polymer yield obtained compared with the yield from conventional processes in which all of the free-radical initiator is charged initially. The process is particularly useful for making commercially important varieties of styrene-allyl alcohol copolymers.

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patent: 2965615 (1960-12-01), Tess et al.
patent: 3080348 (1963-03-01), Lang
patent: 3268561 (1966-08-01), Peppel et al.
patent: 4200593 (1980-04-01), van der Loos
patent: 4278782 (1981-07-01), Heaps
patent: 4367320 (1983-01-01), Murray
patent: 4618703 (1986-10-01), Thanawalla et al.

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