Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1980-02-19
1981-05-26
Jacobs, Lewis T.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
20415919, C08F 800
Patent
active
042696801
ABSTRACT:
Photopolymerizable compositions comprised of (I) novel polymers which are substantially comprised of the reaction products of (A) organic polyisocyanates and (B) organic compounds containing at least about two active hydrogen atoms per molecule, said polymers having been end-capped by reaction with (C) organic compounds containing exactly one active hydrogen atoms and said end-capped polymers having viscosities of from about 5 to about 70 stokes when measured as a 30% solution in a mixture of approximately equal parts of xylol, methyl ethyl ketone and ethylene glycol monomethyl ether, at 25.degree. C., (II) addition polymerization initiators activatable by actinic light, (III) addition polymerizable ethylenically unsaturated components capable of forming polymers by photoinitiated polymerization in the presence of the initiators, and (IV) a natural or synthetic rubber. The unsaturated components may be integral parts of the polymer's structure, or they may be separate compounds admixed with the polymers and initiators. Relief images, especially useful for printing, are prepared by exposure of a mass of the composition to a light source through, e.g., a transparency which has relatively opaque and relatively translucent areas, and subsequent development of the image by application of a developer composition.
REFERENCES:
patent: 3632557 (1972-01-01), Brode et al.
patent: 3752786 (1973-08-01), Rossitto et al.
patent: 3782961 (1974-01-01), Takahashi et al.
patent: 3864133 (1975-02-01), Hisamatsu et al.
patent: 3891523 (1975-06-01), Hisamatsu et al.
Jacobs Lewis T.
Polychrome Corporation
LandOfFree
Curable polymeric composition comprising natural or synthetic ru does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Curable polymeric composition comprising natural or synthetic ru, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Curable polymeric composition comprising natural or synthetic ru will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-452570