Polyorganosiloxane compositions for surface treatment
US4652618A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1985 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Dec 6, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyorganosiloxane compositions for surface treatment comprising: PA0 (A) a polydiorganosiloxane having a viscosity of 50 cSt to 10,000,000 cSt at 25.degree. C., the terminal units of which are blocked by hydroxy groups; PA0 (B) a curing agent which comprises a mixture or a partially reacted mixture of: PA1 (1) a polyorganosiloxane composed of structural units represented by the formula: EQU (R.sup.1).sub.a SiO(.sub.4-a)/2 PA1 wherein, R.sup.1 s are the same or different and each represents a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbyl group and at least two R.sup.1 s out of the total R.sup.1 s in a molecule are monovalent hydrocarbyl groups substituted by an epoxy-containing group; and a represents an integer of 1 to 3, and having a polymerization degree of 10 to 5,000; PA1 (2) a silane and/or a siloxane having a substituted or unsubstituted amino group bonded to a silicon atom via at least one carbon atom and also having at least one alkoxy group bonded to a silicon atom; PA0 at a proportion of 0.1 to 10 amino groups contained in (2) per epoxy-containing group contained in (1); and PA0 (C) a polymethylsilsesquioxane having a mean particle diameter of 0.…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.