Conjugate fibers and nonwoven molding thereof

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

1989-04-13

1991-04-23

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

428182, 428296, B32B 2702, B32B 2732, D02G 302

Patent

active

050099515

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: 4211819 (1980-07-01), Kunimune
patent: 4285748 (1981-08-01), Booker
patent: 4764551 (1988-08-01), Ohmae et al.
patent: 4814032 (1989-03-01), Taniguchi

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