Monoethylenically unsaturated compounds and their polymers
CA 1304739 C · Owner: Irving, Edward · Inventors: Walshe, Josephine Mary Angela; Irving, Edward; Hatton, Kevin Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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K-16619/1+2/=/ARL 384, ABSTRACT OF THE DISCLOSURE Monoethylenically unsaturated compounds whose polymers are useful as polymeric photoinitiators are of formula Ar1COC(R1)(R2)R3 where R1 is C1-C10 alkyl or alkoxy, R2 is C1-C10alkyl -X-O-R4-OCOC(R5)=CH2 (II) -X-NH-R6-OCOC(R5)=CH2 (III) or, -CH2OCH2CH(OH)CH2aOCOC(R5)=CH2 (IIIA) or R1 and R2 together, with the attached carbon, denote C4-C8 cycloalkyl R3 is a C6-C20, aromatic group, OH, tert.amino -OCOC(R5)=CH2 (VI) or, -OCH2CH(OH)CH2OCOC(R5)=CH2 (VIA) R4 is C1-C4 alkylene, which may, be substituted by -OH or by C2-C20 acyloxy R5 is H or C1-C4 alkyl, R6 is C1 to C4 alkylene X is a group of formula R7CO- or, V, where R7 is C1-C4 alkylened R8 is …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
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