Silicone polymers and water-dispersable, pasty silicone oil compositions comprising the same
US5236986A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1992 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Feb 27, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q1/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A novel silicone polymer which is obtained by addition polymerization of at least one organohydrogenpolysiloxane of the type shown below EQU R.sup.1.sub.a R.sup.2.sub.b H.sub.c SiO.sub.(4-a-b-c)/2 ( 1) EQU R.sup.1.sub.j H.sub.k SiO.sub.(4-j-k)/2 ( 2) and a specific type of polyoxyalkylene and/or organopolysiloxane provided that at least one selected from the organohydrogenpolysiloxane of the general formula (1) and the polyoxyalkylene is present for the addition polymerization. The silicone polymer is capable of being swollen with silicone oils to give a uniform, pasty composition without use of any surface active agent. This composition is able to stably, uniformly disperse water therein. Thus, the silicone polymer has wide utility in the fields of cosmetics and medicines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.