Polymodal-cure silicone composition, and method of making the same
US5212211A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1990 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Nov 19, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/0625
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An acryloxy-functional capped silicone formed as a reaction product of: PA0 (i) a silyl diacrylate compound of the formula ##STR1## wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R.sub.10 are independently selected from hydrogen, halo, and organo radicals; and n is an integer having a value of from 1 to 4; and PA0 (ii) a silicone having (A) functionality which is reactive with an acryloxy functionality of the silyl diacrylate compound, and (B) additional functionality imparting (directly or by reaction with a co-reactant) further curability to the silicone by another modality (e.g., moisture curability, heat curability, etc.) The capped polyfunctional silicone may suitably be formulated with (a) an effective amount of a photoinitiator for partial curing of the acryloxy-functional capped silicone under photoinitiating curing conditions, and (b) suitable curatives, initiators, accelerators, etc., as necessary or desirable for further curing by other cure mechanisms dissociated with the additional functionality (ii) (B). The compositions of the invention are usefully employed as adhesives, sealants, conformal coatings, potting materials, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.