Composition of poly(meta-phenylene isophthalamide) with additive

Details Composition of poly(meta-phenylene isophthalamide) with additive Composition of poly(meta-phenylene isophthalamide) with additive

1974-05-01

1976-05-04

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 78R, 260 78S, 260857UN, 260 37M, C08L 7710

Patent

active

039547035

ABSTRACT:
A poly(meta-phenylene isophthalamide) powder is provided which is coalescible under the influence of pressure followed by heating at temperatures below its crystalline melting point to provide molded objects of a solid and homogeneous nature. A process for preparing coalescible powders of poly(meta-phenylene isophthalamide) also is provided wherein a solution of said polymer in a solvent such as DMAC is added to a precipitant such as water to provide a slurry which is filtered, followed by washing and drying the resulting filter cake to provide a crumb which is ground and screened through a sieve of 35 mesh size (U.S. Standard).

REFERENCES:
patent: 3228902 (1966-01-01), Beste
patent: 3287324 (1966-11-01), Sweeny

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