Aqueous developable photosensitive polyurethane-(meth)acrylate

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

430284, 430286, 430306, 4273722, G03F 700, G03F 716

Patent

active

053647416

ABSTRACT:
A photopolymer useful in preparing water-developable, solid printing plates is prepared by preparing a urethane prepolymer by reacting polyoxyalkylene diols or polyester diols, or a mixture thereof, with an excess of diisocyanate, followed by chain extending the resulting prepolymer mixture with an alkyldialkanolamine, then reacting the chain-extended product with a hydroxyalkyl(meth)acrylate. The resulting photopolymer is suitably formulated with additional photoactive (meth)acrylate monomers or oligomers and photoinitiator for casting or extrusion on a substrate to form a flexographic printing plate. Following UV exposure of the plate through a negative, unexposed areas can be removed by washing with a slightly acidic aqueous medium, to give a plate with a desirable relief image. The use of the aqueous washout solution as opposed to organic solvents minimizes pollution problems.

REFERENCES:
patent: 4606994 (1986-08-01), Illers et al.
patent: 5069999 (1991-12-01), Higashi et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Aqueous developable photosensitive polyurethane-(meth)acrylate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aqueous developable photosensitive polyurethane-(meth)acrylate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous developable photosensitive polyurethane-(meth)acrylate will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1096680

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.