Programmed addition of heavy ethers for microstructure control o

Details Programmed addition of heavy ethers for microstructure control o Programmed addition of heavy ethers for microstructure control o

1997-03-12

1998-08-18

Krass, Frederick

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526173, 526174, 526209, 525243, 525250, 525253, 525258, 525271, 525314, 525315, 525316, C08F23610, C08F29704

Patent

active

057959447

ABSTRACT:
A process for the polymerization of dienes which comprises anionically polymerizing dienes in the presence of an anionic polymerization initiator and a microstructure control agent is improved by adding the control agent to the polymerization mixture in two or more doses to closely control the vinyl content of the polymer produced.

REFERENCES:
patent: 4577002 (1986-03-01), Broekhuis
patent: 5241008 (1993-08-01), Hall

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