Polymerization process

Details Polymerization process Polymerization process

1977-04-15

1978-09-05

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526185, 526189, 526190, 526193, 526196, 526198, C08F 446, C08F 456

Patent

active

041122100

ABSTRACT:
Homopolymers of conjugated dienes and copolymers of conjugated dienes with other conjugated dienes or with vinyl aromatic compounds having an elastomeric character are prepared by use of a catalytic system formed of the reaction product of (a) an organometallic compound of a metal of Group IIIA of the Mendeleev periodic table of elements with (b) at least one electron-donor compound containing at least one hetero-atom.

REFERENCES:
patent: 3380979 (1968-04-01), Chiang
patent: 3429861 (1969-02-01), Chiang et al.
patent: 3448092 (1969-06-01), Chiang
patent: 3526604 (1970-09-01), Wadsworth
patent: 3539542 (1968-03-01), Nakatsuka et al.
patent: 3631006 (1971-12-01), Hawkins

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