UV-curable epoxysilicone-polyether block copolymers
US5240971A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1991 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Dec 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31663
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to silicone-polyether linear block copolymers of the formula ##STR1## wherein, R is hydrogen or a C.sub.(1-8) alkyl, alkoxyl or haloalkyl radical or a monovalent epoxy-functional organic radical; PA1 R.sup.1 is hydrogen or a C.sub.(1-8) alkyl or alkoxyl radical, or a monovalent epoxy-functional organic radical; PA1 provided that at least two R or R.sup.1 groups are either hydrogen or monovalent epoxy-functional organic radicals; PA1 R.sup.2 is a divalent alkylene radical; PA1 R.sup.3 is a C.sub.(2-6) alkyl or alkoxyl radical; PA1 n is a positive integer of about 4 to about 400; PA1 m is a whole number of from 0 to about 50; and, each of R, R.sup.1, R.sup.2 and R.sup.3 may be unsubstituted or substituted. The invention also relates to UV-curable compositions comprising the above-described compound, with or without a UV-detectable dye marker, and a process for making such a compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.