Silicone sealant having adjustable flow properties
US12043738B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2018 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Oct 11, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0685
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A single-component moisture-curable silicone composition including 100 parts by weight of at least one crosslinkable polydiorganosiloxane having silanol end groups, 5 to 20 parts by weight of at least one hydrophilic silica, 1 to 10 parts by weight of at least one organoalkoxysilane or organoalkoxysiloxane crosslinker that contains at least 2 alkoxysilane groups, 1 to 7 parts by weight of organoalkoxysilane or organoalkoxysiloxane that contains at least one aminoalkyl group having a primary amino group, 0.1 to 7 parts by weight of at least one tin catalyst, up to 5 parts by weight of organoalkoxysilane or organoalkoxysiloxane that contains at least two alkoxysilane groups, wherein silicone composition contains less than 1.0% by weight of water based on total composition, with proviso where reactivity in respect of hydrolysis of organoalkoxysilane or organoalkoxysiloxane is greater than reactivity in respect of hydrolysis of organoalkoxysilane or organoalkoxysiloxane crosslinker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.