Poly(siloxane-acrylate) elastomers with oxycarbonylethyleneimino-containing organic group and method of making the same
US6265514A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2000 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Feb 17, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Poly(siloxane-acrylate) elastomers with low weep characteristics are formed by the steps of: PA1 (A) forming an amine functional alkenyl-containing siloxane by mixing and heating: PA2 (a) a polydiorganosiloxane, PA2 (b) an amino-functional silane hydrolyzate, PA2 (c) an alkenylorganosiloxane, and PA2 (d) a base equilibration catalyst, then PA1 (B) reacting, at room temperature, the amine functional alkenyl-containing siloxane with an acrylate to form a curable alkenyl-containing poly(siloxane-acrylate) with oxycarbonylethyleneimino-containing organic groups, and PA1 (C) curing the alkenyl-containing poly(siloxane-acrylate) to form an poly(siloxane-acrylate) elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.