Polybutylene terephthalate-polystyrene copolymers

Details Polybutylene terephthalate-polystyrene copolymers Polybutylene terephthalate-polystyrene copolymers

1979-05-02

1980-08-12

Danison, Walter C.

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

Synthetic resins

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

525177, 525445, C08L 6702

Patent

active

042174279

ABSTRACT:
Compositions comprising from 70 to 95 wt % polybutylene terephthalate modified by copolymerizing therewith from 30 to 5 wt % of a diol-terminated polystyrene as pendant chains exhibit marked increase in heat deflection temperature at 264 psi stress, together with an unexpected increase in melt flowability.

REFERENCES:
patent: 3402219 (1968-09-01), Hill et al.
patent: 3598882 (1971-08-01), Brinkmann
patent: 3644574 (1972-02-01), Jackson et al.
patent: 3657389 (1972-04-01), Caldwell et al.
patent: 3786116 (1974-01-01), Milkovich et al.
patent: 4143094 (1979-03-01), Burzin et al.

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