High molecular weight polytetramethyleneadipamide pellets

Details High molecular weight polytetramethyleneadipamide pellets High molecular weight polytetramethyleneadipamide pellets

1988-04-05

1989-03-21

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 60, 521184, 521189, 521918, 525420, 528335, 528502, C08J 924

Patent

active

048143561

ABSTRACT:
The invention relates to polyamide pellets for use in the production of high molecular weight polytetramethyleneadipamide articles. The polyamide pellets have sizes of between 1 mm and 20 mm and porosity of between 0.1 and 20 vol %. Prepolymer polyamide pellets have a crushing strength of at least 0.5, and after-condensed pellets have crushing strength of at least 15 kg.

REFERENCES:
patent: 4408036 (1983-10-01), Gaymans et al.
patent: 4446304 (1984-05-01), Gaymans et al.
patent: 4460762 (1984-07-01), Gaymans et al.
patent: 4757131 (1986-07-01), Bongers

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