Process for the preparation of branched polymers

Details Process for the preparation of branched polymers Process for the preparation of branched polymers

1984-01-16

1985-09-03

Briggs, Sr., Wilbert J.

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

Synthetic resins

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

525271, 525314, 525340, 525194, C08F29704

Patent

active

045391360

ABSTRACT:
The invention provides a process for the preparation of a branched polymer which comprises contacting a monovinyl aromatic monomer having from 8 to 18 carbon atoms per molecule with an organolithium initiator, thereafter adding at least one conjugated diene monomer having from 4 to 12 carbon atoms per molecule and thereafter adding a tris-(nonylated phenyl)phosphite as coupling agent in an amount from 0.15 to 1.1 mol per mol of the organolithium initiator.

REFERENCES:
patent: 3803266 (1974-04-01), Kahle et al.

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