Low voc hair spray compositions

A - Human Necessities – 61 – K

Patent

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A61K 7/11 (1995.01)

Patent

CA 2203532

A low VOC (volatile organic compounds) hair spray composition having a combination of desirable user performance characteristics is described herein. The hair fixative resin in the composition is a terpolymer of 40-75 % by weight of a vinyl lactam, preferably vinyl pyrrolidone, 15-40 % of a polymerizable carboxylic acid, preferably acrylic acid or methacrylic acid, and 5-25 % of a hydrophobic monomer, preferably a long chain alkyl (C8-C24) acrylate, methacrylate, acrylamide or methacrylamide. The terpolymer has a K- value of 30-55, preferably 40-50, which provides compositions having good sprayability in both pump and aerosol form, and small, fine spray particles.

L'invention concerne une composition de laque contenant une quantité limitée de composés organiques volatils tout en possédant des caractéristiques d'utilisation appropriées. La résine de fixation de la composition est un terpolymère composé de 40-75 % en poids d'un lactame de vinyle, de préférence, vinyl pyrrolidone, de 15-40 % d'un acide carboxylique polymérisable, de préférence, acide acrylique ou méthacrylique et de 5-25 % d'un monomère hydrophobe, de préférence, un méthacrylate, un acrylamide, un méthacrylamide ou un acrylate d'alkyle C¿8?-C¿24?. Le terpolymère possède un valeur K de 30-55, de préférence 40-50, ce qui rend ces compositions facilement pulvérisables, à la fois en pompe et en aérosol, en fines particules.

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