Curable silicone compositions
US5064891A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1990 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | May 18, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/912
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A curable silicone composition comprising: PA1 (A) an organopolysiloxane having at least two silicon-bonded aliphatic unsaturated hydrocarbon radicals in its molecule; PA1 (B) an organohydrogenpolysiloxane having at least three silicon-bonded hydrogen atoms in its molecule; PA1 (C) a platinum family metal catalyst; and PA1 (D) a nonionic surface active agent having a hydrophobic silicone portion and at least one hydrophilic polyol portion in its molecule. The curable silicone composition gives cured products having good hydrophilic properties and dimensional stability, and are especially suitable for use as a dental impression material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.