Silicone hybrid pressure sensitive adhesive and methods for its preparation and use on uneven surfaces
US12163068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2021 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Mar 22, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A silicone hybrid pressure sensitive adhesive composition that cures to form a silicone hybrid pressure sensitive adhesive contains a polydiorganosiloxane having reactive groups. The reactive groups include a silicon bonded (meth)acryloxyalkyl-functional group in a pendant position and a silicon bonded aliphatically unsaturated hydrocarbon group. An adhesive article, such as a tape, can be formed by coating the silicone hybrid pressure sensitive adhesive composition on a surface of a substrate and curing said composition via hydrosilylation reaction (B-staged cure) to form a silicone hybrid pressure sensitive adhesive layer on the surface. The silicone hybrid pressure sensitive adhesive layer contains (meth)acryloxyalkyl-functional groups, which can further react and crosslink via exposure to UV radiation (C-staged cure).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.