Fragrant non-hollow core-in-sheath type composite staple fiber a

Details Fragrant non-hollow core-in-sheath type composite staple fiber a Fragrant non-hollow core-in-sheath type composite staple fiber a

1992-02-05

1993-04-27

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428272, 428365, 428370, 428373, 428905, D02G 300, B32B 700, D04B 100

Patent

active

052060802

ABSTRACT:
A fragrant non-hollow core-in-sheath type composite staple fiber having a length of from 3 mm to 150 mm and useful for gradual fragrance-emitting textile materials comprises (1) a non-hollow core portion comprising (i) 0.1 to 5% of an essential oil and (ii) the balance consisting of an olefin polymer composition; and (2) a sheath portion covering the core portion and comprising a polyester resin, the olefin polymer composition (ii) comprising: (A) 50 to 98% by weight of an olefin polymer which is a polymerization product of at least one member selected from ethylene and .alpha.-olefins, and free from polar radicals; and (B) 2 to 50% by weight of a modified olefin polymer that is a copolymerization product of (a) 70 to 97% by weight of at least one olefin with (b) 3 to 30% by weight of at least one ethylenically unsaturated polar monomer selected from ethylenically unsaturated carboxylic acids, ethylenically unsaturated alcohols, ethylenically unsaturated esters, anhydrides and amides of the above-mentioned carboxylic acids and uniformly blended with the olefin polymer (A).

REFERENCES:
patent: 3919091 (1975-11-01), Eckert et al.
patent: 4713291 (1987-12-01), Sasaki et al.
patent: 4917920 (1990-04-01), Ono et al.

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