Benzoate esters of hydroxyl terminated polyether polysiloxane copolyols and process for producing same
US6552212B2 · kind B2 · utility
4Cited by
48References
63Claims
0Family size
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Key dates
| Filing date | May 14, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | May 14, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/436
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions of matter comprising benzoate esters of hydroxyl terminated polyether polysiloxane copolyols, in particular dimethicone copolyol benzoates, and process for preparing same. The benzoate esters are useful for personal care cleansing products, such as bar and liquid soaps, skin and hair care products and textiles and fibers. The compounds are prepared by reacting benzoic acid with hydroxyl terminated polyether polysiloxane copolyols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.