Patent ID: 8247335
Filing Date: 2012-08-21
Classification: A61K,A61P,A61Q,D01F,D04H,Y10T

Abstract:
1. A multicomponent fiber comprising at least one water dispersible sulfopolyester and at least one water non-dispersible polymer immiscible with said sulfopolyester; wherein said multicomponent fiber has a side by side cross section; wherein said sulfopolyester has a glass transition temperature (Tg) of at least 57° C.; and wherein said sulfopolyester comprises: (i) residues of one or more dicarboxylic acids, wherein said residues of one or more dicarboxylic acids comprise residues of terephthalic acid in an amount in the range of 50 to 96 mole %, based on the total acid residues; (ii) about 4 to about 40 mole %, based on the total repeating units, of residues of at least one sulfomonomer having 2 functional groups and one or more sulfonate groups attached to an aromatic or cycloaliphatic ring wherein said functional groups are hydroxyl, carboxyl, or a combination thereof; (iii) one or more diol residues wherein at least 25 mole %, based on the total diol residues, is a poly(ethylene glycol) having a structure wherein n is an integer in the range of 2 to about 500; and (iv) 0 to about 25 mole %, based on the total repeating units, of residues of a branching monomer having 3 or more functional groups wherein said functional groups are hydroxyl, carboxyl, or a combination thereof.