Water and glycol bonding dispersions for synthetic fibers

C - Chemistry – Metallurgy – 08 – L

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131/18, 400/7638

C08L 67/02 (2006.01) A24D 3/14 (2006.01) C08G 63/688 (2006.01) C08K 5/053 (2006.01) C09J 167/02 (2006.01) C09J 177/00 (2006.01) C09J 177/12 (2006.01)

Patent

CA 1038519

Abstract of the Disclosure Bonding dispersion comprising high boiling polyols selected from 1,2-propanediol, 1,3-propanediol, diethylene glycol, triethylene glycol, tetra-ethylene glycol, 1,4-butanediol, 1,2-butanediol, 1,3- butanediol and glycerol; and water-sensitive polymers selected from polyesters, polyamides and polyesteramides wh? are dispersible or soluble in the polyols. The polymer is present in the amount of 5 to 50% by weight of the dispersion and preferably 15 to 35% by weight, and is selected from polyesters of combinations of isophthalic acid and sodiosulfoisophthalic acid reacted with diethylene glycol or tri- ethylene glycol; from terephthalic acid and sodiosulfoisophthalic acid reacted with diethylene glycol or triethylene glycol; from polyamides from adipic acid and 3,3'-(diethylenetrioxy)bis(propylamine): and from polyesteramides from adipic acid and combinations of 3,3'- (diethylenetrioxy)bis(propylamine) and diethylene glycol. Also dis- closed are tobacco smoke filter rods of cellulose acetate fibers and of poly(ethylene terephthalate) fibers bonded with the bonding dis- persion.

208928

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