Self-crimped foamed fibers

Details Self-crimped foamed fibers Self-crimped foamed fibers

1985-01-03

1986-12-02

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264 455, 264 53, 264 54, B29C 4706, B29C 6720

Patent

active

046263900

ABSTRACT:
Crimped foamed fibers are produced by a process which eliminates any mechanical deformation steps. The process comprises the step of forming foamed fibers having a plurality of randomly arranged cells distributed asymetrically over a given cross section and occupying at least about 10% of the cross sectional area of the fiber, and heating the foamed fibers while maintaining the fibers under no load condition to produce a crimped foamed fiber. The crimped foamed fibers are used in apparel, carpet fibers, thermal insulation, acoustic and filtration.

REFERENCES:
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patent: 3156028 (1964-11-01), Weiss et al.
patent: 3275720 (1966-09-01), Ohsol
patent: 3345718 (1967-10-01), Hollihan et al.
patent: 3406436 (1965-11-01), Clarke et al.
patent: 3425107 (1966-09-01), Matsui et al.
patent: 3619874 (1970-01-01), Li et al.
patent: 3984515 (1976-10-01), Mommaerts et al.
patent: 4182735 (1980-01-01), Costa, Jr. et al.
Chem. Abstract 90:24692m (1979) of Japanese Kokai 78,106,770.

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