Method of preparing polymers with low melt viscosity

Details Method of preparing polymers with low melt viscosity Method of preparing polymers with low melt viscosity

1998-06-05

1999-10-12

Truong, Duc

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528330, 528331, C08G 6500, C08G 6540

Patent

active

059656875

ABSTRACT:
This invention is an improvement in standard polymerizations procedures, i.e., addition-type and step-growth type polymerizations, wherein momomers are reacted to form a growing polymer chain. The improvement includes employing an effective amount of a trifunctional monomer (such as a trifunctional amine, anhydride, or phenol) in the polymerization procedure to form a mixture of polymeric materials consisting of branced polymers, star-shaped polymers, and linear polymers. This mixture of polymeric materials has a lower melt temperature and a lower melt viscosity than corresponding linear polymeric materials of equivalent molecular weight.

REFERENCES:
patent: 5655249 (1998-01-01), Schmid

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