Precipitation of polycycloolefins having high bulk density

Details Precipitation of polycycloolefins having high bulk density Precipitation of polycycloolefins having high bulk density

1982-05-10

1983-11-08

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

526283, 528495, C08F 612

Patent

active

044143869

ABSTRACT:
A polymer is precipitated from a cement containing the polymer dissolved in a nonpolar solvent by mixing the cement with a nonsolvent alcohol and water wherein the relative amount of water to the alcohol is different from the alcohol/water azeotropic composition and being such as to produce a polymer product in the form of discrete particles, the product having bulk density in excess of 0.08 g/cc or 5 lb/ft.sup.3, is capable of being easily filtered and dried, and is a polymer of a monomer that contains at least one norbornene group.

REFERENCES:
patent: 4069376 (1978-01-01), Minchak

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