Process for increasing the melt viscosity of polyamide with aryl

Details Process for increasing the melt viscosity of polyamide with aryl Process for increasing the melt viscosity of polyamide with aryl

1981-07-06

1983-06-28

Anderson, Harold D.

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

Synthetic resins

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

524140, 524141, 524142, 524144, 525419, C08G 948, C08G 946

Patent

active

043906672

ABSTRACT:
A process for decreasing the melt index and increasing the viscosity of polyamide compositions by adding thereto an effective amount of an aryl phosphate compound, and thereafter heating the composition until the desired changes in melt index or viscosity are attained.

REFERENCES:
patent: 2959570 (1960-11-01), Kessler et al.
patent: 3345341 (1967-10-01), Berry et al.
patent: 3437641 (1969-04-01), Lenz et al.
patent: 3549651 (1970-12-01), Oswald et al.
patent: 3551548 (1970-12-01), Brignac et al.
patent: 3631001 (1971-12-01), Arakawa et al.
patent: 3763113 (1973-10-01), Burrows et al.
patent: 4196118 (1980-04-01), Fujie et al.

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