Coupling of alkali metal-terminated polymers

Details Coupling of alkali metal-terminated polymers Coupling of alkali metal-terminated polymers

Filed on

1976-04-19

Date issued

1977-09-20

Examiner

Hamrock, William F.

Patent Class

Chemistry of carbon compounds

SubClass

Miscellaneous organic carbon compounds

SubSubClass

C-metal

Other Related Categories

260879, 526 20, 526 21, 526 56, C08F 800, C08F 802, C08F 806, C08F 810

Type

Patent

Status

active

Patent number

040497534

Description

ABSTRACT:
Alkali metal-terminated polymers of one or more alkadienes and of one or more vinyl-substituted aromatic monomers are effectively coupled by an anhydride of a monocarboxylic acid having 2 to 8 carbon atoms per molecule.

REFERENCES:
patent: 3135716 (1964-06-01), Uraneck et al.
patent: 3281383 (1966-10-01), Zelinski et al.
patent: 3551392 (1970-12-01), Snyder et al.
patent: 3631156 (1971-12-01), Vaughn et al.
patent: 3651025 (1972-03-01), Bean et al.
patent: 3668279 (1972-06-01), Loveless et al.
patent: 3766301 (1973-10-01), DeLa Mave et al.
patent: 3803087 (1974-04-01), Vaughn

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