Hair and similar cosmetic preparations containing a quaternized copolymer of vinyl pyrrolidone
Patent 3954960 Issued on May 4, 1976. Estimated Expiration Date: 
May 4, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 4, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3385839 3634368 InventorAssigneeApplicationNo. 374926 filed on 06/29/1973US Classes:424/47, Topical live body grooming or adorning aid (e.g., hair spray, antiperspirant, etc.)424/70.15, Polyvinylpyrrolidone or copolymer thereof424/70.16Poly(meth)acrylic acid, salt, or copolymer thereofExaminersPrimary: Waddell, Frederick E.Attorney, Agent or FirmAbstractHair and similar cosmetic preparations, i.e., aerosol hair sprays, hair conditioners, and hair setting lotions, etc. containing as the film-forming resin a quaternized copolymer of vinyl pyrrolidone and a copolymerizable vinyl monomer, i. e., a di-loweralkylaminoalkyl (or hydroxy alkyl) acrylate or methacrylate. Such compositions containing the quaternized copolymer exhibit excellent adhesion and holding power when employed for hair care preparations. | |
