C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/66 (2006.01) A61K 8/87 (2006.01) A61Q 5/06 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08L 75/04 (2006.01)
Patent
CA 2262889
A polyurethane, soluble or dispersible in water, prepared from organic diisocyanate diols or other isocyanate reactive materials and a 2,2-hydroxymethyl-substituted carboxylic acid diol neutralized with a cosmetically acceptable organic or inorganic base and formulated into a hair fixative composition containing low amounts of volatile organic solvent. The present invention is also directed to a process for the preparation of polyurethanes comprising dispersing the polyurethane after at least 70% of the theoretical isocyanate reaction has taken place, but before completion of the reaction.
Kielbania Andrew J. Jr.
Kukkala Pravin K.
Lee Sharon P.
Vitale Melissa J.
National Starch And Chemical Investment Holding Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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