Innovative-type hair spray concentrate capable of delivering reduced VOC spray particles
US5759522A · kind A · utility
1Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Nov 7, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S424/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An innovative-type hair spray concentrate of defined Brookfield viscosity and solids content which is capable of delivering reduced VOC spray particles of acceptable quality under the Innovative Product Clause Regulations in combination with a suitable restricter valve and actuator system. The concentrate includes a fixative which is the half-ester of a copolymer of maleic anhydride and methyl vinyl ether having a weight average molecular weight of about 40,000 to about 70,000, which provides advantageous physical and use performance properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.