Polymeric alloys from polyester resins and process for their pro

Details Polymeric alloys from polyester resins and process for their pro Polymeric alloys from polyester resins and process for their pro

1996-12-05

1998-12-22

Short, Patricia A.

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

Synthetic resins

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

525425, 525437, 525439, 525537, C08L 6702, C08L 7700

Patent

active

058521348

ABSTRACT:
A process for the preparation of polymeric alloys from polyester resins and polymers containing groups capable of giving addition reaction with functional compounds containing at least two reactive groups comprising the melt state mixture stage of polyester resin, reactive polymer and functional compound of mixture pelletizing and following polyaddition reaction in the solid state at temperatures between 150.degree. and 220.degree. C. to obtain an increase of the polymer intrinsic viscosity of 0.1 dl/g in comparison with the starting polyester resin.

REFERENCES:
patent: 3015651 (1962-01-01), Kjelimark
patent: 3959215 (1976-05-01), Schneider
patent: 4778858 (1988-10-01), Ginnings
patent: 4891406 (1990-01-01), Bittscheidt

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