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KPSS Kao Awarded Hair Care Patents

April 30, 2012

US Patent Nos. 8,137,414 B2 and 8,137,4 B2; KPSS KAO Professional Salon Services GmbH, Darmstadt, Germany, has been awarded two patents related to its hair care business.

Patent No. 8,137,414 B2 covers an aqueous composition for hair that comprises at least one alkalizing agent and a cationic polymer consisting of a copolymer of vinylpyrrolidone and vinylimidazole and a homopolymer of dimethyl dially ammonium chloride.

Patent No. 8,137,415 B2 covers an aqueous composition for hair that comprises at least one alkalizing agent and an aqueous emulsion of divinyldimethicone/dimethicone copolymer with an internal phase viscosity of more than 1×108 mm2/s measured at 0.01 Hz and at about 25°C.
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