Conjugate fibers and nonwoven molding thereof

Details Conjugate fibers and nonwoven molding thereof Conjugate fibers and nonwoven molding thereof

1988-05-02

1989-06-20

McCamish, Marion C.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428296, 428374, D02G 300

Patent

active

048408476

ABSTRACT:
A conjugate fiber obtained by melt spinning (A) a crystalline poly-.alpha.-olefin and (B) an ethylene copolymer containing from 40 to 95% by weight of an ethylene unit and from 5 to 60% by weight of at least one dialkylaminoalkylacrylamide comonomer unit represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 and R.sub.3 each represents an alkyl group having from 1 to 4 carbon atoms; and n represents an integer of from 2 to 5, said ethylene copolymer having a melt index of from 10 to 1000 g/10 min as measured according to JIS K-6760, either by aligning the components (A) and (B) in parallel or by aligning the component (A) as a core and the component (B) as a sheath. The conjugated fiber is excellent in thermal adhesion, absorptivity by an acid aqueous solution, and dyeability and can easily be fabricated into a nonwoven fabric or nonwoven molding suited for various applications including separators of lead accumulators.

REFERENCES:
patent: 3395198 (1968-07-01), Taniguchi
patent: 3439066 (1969-04-01), Coover
patent: 4211819 (1980-07-01), Kunimune
patent: 4234655 (1980-11-01), Kunimune
patent: 4269888 (1981-05-01), Ejima
patent: 4315881 (1982-02-01), Nakajima
patent: 4732809 (1988-03-01), Harris
patent: 4764551 (1988-08-01), Ohmae
patent: 4774124 (1988-09-01), Shimalla

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