Process for preparing a solventless polyorganosiloxane pellet and a waterborne dispersion of a silicone pressure sensitive adhesive base
US12116511B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Apr 9, 2021 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Apr 9, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2483/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for preparing a waterborne dispersion of a silicone pressure sensitive adhesive base includes the use of a solventless polyorganosiloxane pellet containing a polyorganosilicate resin and a polyorganosiloxane gum. The waterborne dispersion of the silicone pressure sensitive adhesive base can be combined with a free radical initiator, and dried and cured to form a silicone pressure sensitive adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.