Room temperature curable solventless silicone coating compositions
US5445873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Jul 13, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A room temperature curable solventless silicone coating composition includes (A) an organopolysiloxane end-blocked with a hydroxyl radical, (B) a tri- or tetra-hydrocarbonoxysilane or a partial hydrolyzate thereof, and (C) a curing catalyst in the form of an organic carboxylate of a heavy metal, an organic titanate ester, a guanidyl-substituted alkoxysilane, or an organic compound having a guanidyl radical containing a siloxane. When it has a viscosity of 20 to 500 centipoise at 25.degree. C., it is easily applicable by conventional coating techniques such as dipping and spraying, and quickly cures at room temperature into uniform coatings, suitable for covering circuit boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.