Bimodalization of polymer molecular weight distribution

Details Bimodalization of polymer molecular weight distribution Bimodalization of polymer molecular weight distribution

1995-05-25

1996-11-26

Jagannathan, Vasu S.

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

Synthetic resins

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

525287, 525293, 525305, 525306, C08F25510, C08F25502, C08F27902

Patent

active

055786820

ABSTRACT:
The present invention provides a post-polymerization process for modifying the molecular weight distribution of a polymer having a monomodal molecular weight distribution, which polymer normally exhibits a decrease in molecular weight when subjected to high shear mixing in the presence of a free radical initiator, to produce a polymer having a bimodal molecular weight distribution. The process comprises:

REFERENCES:
patent: 3862265 (1975-01-01), Steinkamp et al.
patent: 4749505 (1988-06-01), Chung et al.
patent: 5071913 (1991-12-01), Powers et al.

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