Patent · US Expired

Silicone polyphotoinitiators

US4666953A · kind A · utility

29Cited by

9References

6Claims

0Family size

Assignee

Loctite Corporation · US

Inventors

Philip T. Klemarczyk · Collinsville, US
Steven T. Nakos · Andover, US
Samuel Lin · Paramus, US

Key dates

Filing date	Mar 28, 1985
Grant date	May 19, 1987
Priority date	—
Expiry date	Mar 28, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S522/904
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polyorganosiloxanes having an average of more than two siloxane repeat units, at least one of which repeat units includes a photoinitiating group bound to the silicon atom thereof, the photoinitiating group having the formula ##STR1## where R.sup.1 and R.sup.2 are the same or different alkyl groups or R.sup.1 and R.sup.2 are alkylene groups linked to each other so that R.sup.1 and R.sup.2 together with the carbon atom to which both are attached comprise a cycloalkyl group, and R.sup.3 is H or hydrocarbyl. Compositions of these polyorganosiloxanes and silicones or organic monomers with free radical curable groups are readily cured by irradiation with UV light.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.