Photo-crosslinkable 2-pyrone polymers and processes for the manufacture thereof
AssigneeHoechst Aktiengesellschaft
InventorsHarald Furrer, Hartmut Steppan, Gerhard Lohaus
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Abstract
This invention relates to a photo-crosslinkable polymer comprising units with side chains having 2-pyrone groups therein. The invention also relates to processes for the preparation of the novel photo-crosslinkable polymers and to a photo-curable copying composition including the photo-crosslinkable polymer.
Claims16
A photo-crosslinkable polymer comprising about 5 to 100 mole per cent of polymerized vinyl or vinylidene units bonded via an ester, amide, or acetal group to a radical of a 2-pyrone compound, and about 0 to 95 mole percent of non-photosensitive comonomer units.
A photo-crosslinkable polymer which is a polyester of a polymeric polyhydroxy compound with a 2-pyrone derivative containing carboxyl groups.
A photo-crosslinkable polymer which is a polyacetal of a polymeric polyhydroxy compound with a 2-pyrone derivative containing aldehyde groups.
A process for the preparation of a photo-crosslinkable polymer which comprises polymerizing a 2-pyrone compound containing a polymerizable vinyl or vinylidene group, the 2-pyrone group and the polymerizable vinyl or vinylidene group being linked together via an ester or an amide group.
A process for the preparation of a photo-crosslinkable polymer which comprises esterifying or acetalizing a polymeric polyhydroxy compound with a 2-pyrone derivative having carboxyl or aldehyde groups, respectively.
Dependencies are inferred from the claim text.