Process for making diene copolymer rubbers

Details Process for making diene copolymer rubbers Process for making diene copolymer rubbers

1985-10-22

1986-09-30

Michl, Paul R.

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

Synthetic resins

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

5253327, 5253329, 5253331, 5253332, 525374, C08F 800

Patent

active

046147713

ABSTRACT:
A process for making a diene copolymer rubber having improved rebound, which comprises polymerizing a conjugated diene monomer with an aromatic vinyl monomer in a hydrocarbon solvent in the presence of an alkali metal and/or alkaline earth metal initiator, to form a dienyl-metal terminated, conjugated diene-aromatic vinyl copolymer rubber, and thereafter reacting the copolymer rubber with at least one reactant selected from the group consisting of aminoaldehydes, aminoketones, aminothioaldehydes and aminothioketones.

REFERENCES:
patent: 3468972 (1969-09-01), Hsieh
patent: 3985830 (1976-10-01), Fetters
patent: 4301258 (1981-11-01), Lal
patent: 4301259 (1981-11-01), Lal
patent: 4304886 (1981-12-01), Bean

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