Hair holding compositions containing a water-insoluble block copolymer

Claim 1

A HAIR HOLDING COMPOSITION, WHICH COMPRISES A SOLUTION, IN AN ORGANIC SOLVENT SELECTED FROM THE CLASS CONSISTING OF ETHANOL, ISOPROPANOL, AND METHYLENE DICHLORIDE, OF AN EFFECTIVE AMOUNT OF WATER-INSOLUBLE BLOCK COPOLYMER REPRESENTED BY THE FORMULA, A-B-(A-B)N-A, IN WHICH SEGMENTS A ARE SELECTED FROM THE CLASS CONSISTING OF POLYMERS OF 2-VINYLPYRIDINE, 4-VINYLPYRIDINE, 2-METHYL-5-VINYLPTRIDINE, AND ACRYLAMIDES AND METHYACRYLAMIDES OF THE FORMULA CH2 =CXCONR''R", WHERE X IS H OR CH3, R'' OR AN N-ALKYL GROUP CONTAINING FROM 3 TO ABOUT 8 CARBON ATOMS, AND R" IS AN N-ALKYL GROUP CONTAINING FROM 3 TO ABOUT 8 CARBON ATOMS, SEGMENTS B ARE SELECTED FROM THE CLASS CONSISTING OF POLYMERS OF BUTADIENE, ISOPRENE, ISOBUTENE, AN ALKYL ACRYLATE WHERE THE ALKYL GROUP CONTAINS FROM 2 TO 12 CARBON ATOMS, AN ALKYL METHACRYLATE WHERE THE ALKYL CONTAINS 4 TO 12 CARBON ATOMS, A VINYL N-ALKYL ETHER WHERE THE ALKYL GROUP CONTAINS 1 TO 4 CARBON ATOMS, AN ALKYL-SUBSTITUTED BUTADIENE WHERE THE ALKYL GROUP CONTAINS 1 TO 4 CARBON ATOMS, AND CHLOROPRENE: N IS O OR AN INTEGER FROM 1 TO 5, AND THE BLOCK COPOLYMER CONTAINS FROM ABOUT 10 TO ABOUT 90 PERCENT BY WEIGHT OF SEGMENTS A AND, COMPLEMENTALLY, FROM ABOUT 90 TO ABOUT 10 PERCENT OF SEGMENTS B.