High-speed moisture-cure hybrid siloxane/silsesquioxane-urethane and siloxane/silsesquioxane-epoxy systems with adhesive properties
US10995244B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Sep 6, 2019 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Nov 7, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Materials containing the reaction products of a cyclic azasilane with water and a compound or polymer containing an isocyanate or epoxy functional group and methods for their synthesis are provided. Stable mixtures containing a cyclic azasilane and a compound or polymer containing an isocyanate or epoxy functional group according to invention are stored under anhydrous conditions. The invention also provides a novel class of materials, mono and bis(cycloaza)disiloxanes comprising one or two cyclic structures bridged by an Si—O—Si bond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.