Room temperature curable organopolysiloxane composition
US5945466A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | May 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/01
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A room temperature curable organopolysiloxane composition including: (A) 100 parts by weight of a diorganopolysiloxane represented by the general formula (1): EQU HOSi(R.sup.1).sub.2 O!.sub.n H (1) wherein R.sup.1 represents a substituted or unsubstituted monovalent hydrocarbon group, and n is an integer of 15 or more; PA1 (B) from 0.1 part by weight to 20 parts by weight of an organosilane, or a partially hydrolyzed product thereof, represented by the general formula (2): EQU (R.sup.2).sub.m S(OR.sup.2).sub.4-m (2) wherein R.sup.2 's each independently represent a substituted or unsubstituted monovalent hydrocarbon group, and m is 0, 1 or 2; PA1 (C) from 0.01 part by weight to 10 parts by weight of a curing catalyst; PA1 (D) from 20 parts by weight to 600 parts by weight of a magnesium silicate; and PA1 (E) from 5 parts by weight to 80 parts by weight of a paraffin type aliphatic hydrocarbon which is liquid or semi-solid at room temperature. This composition can be rapidly cured, even after a long-term storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.