Personal care products
US7005125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2003 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Apr 17, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/36
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Personal care products, particularly hair care products, are made herein by mixing (A) a polymer having defined repeat units of a monomer (e.g. α-olefin) maleic anhydride alkyl half-ester or full acid, maleamic acid and maleimide, which is derivatized with an amine, and (B) a compound or polymer having a carboxylic acid functionality. These products exhibit excellent high humidity curl retention properties, as well as an advantageous blend of toughness and cohesiveness, and a strong affinity to natural fibers, when applied to keratin-based fibers, e.g. hair, skin, or textiles, e.g. cotton, wool; and also they are water-soluble and water-resistant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.