Use of acrylic block copolymers as wetting and/or dispersing agents for solid particles, and resulting dispersions
US5681877A · kind A · utility
16Cited by
11References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1996 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Mar 27, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/34
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Block copolymers denoted by AB from acrylic or methacrylic acid, the corresponding blocks being denoted by A, and from alkyl acrylate or methacrylate with the alkyl chain being C.sub.1 -C.sub.10, the corresponding blocks being denoted by B. Said copolymer blocks are used as wetting and/or dispersing agents for solid particles in an essentially organic medium consisting of a solvent or a mixture of solvents solubilizing the block B. The invention also concerns solid particle dispersions using the above-defined block copolymers. It also concerns compositions, in particular cosmetic compositions, containing said dispersions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.