Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Antihalation or filter layer containing
Patent
1984-02-16
1986-09-30
Kittle, John E.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Antihalation or filter layer containing
430510, 430533, 430536, 430537, 430627, 430931, 430961, 430950, G03C 184, G03C 102
Patent
active
046147080
ABSTRACT:
Method for the preparation of stable aqueous dispersions of finely divided solid spherical polymer beads having an average particle size between about 0.5 and about 5 .mu.m and having a glass transition temperature of at least 40.degree. C. by dissolving in an aqueous solvent mixture at least one .alpha.,.beta.-ethylenically unsaturated monomer capable of forming a polymer that is soluble in the monomer(s) present in said aqueous solvent mixture but which is insoluble in said aqueous solvent mixture, a free radical-forming polymerization initiator, and a graft-polymerizable polymer containing hydrophilic groups, heating the solution to a temperature from 50.degree. C. to the reflux temperature thereof with stirring so as to form said polymer beads. The polymer beads can be used in an antifriction surface layer, an antihalation surface layer, an antistatic surface layer, or in a protective surface layer of a photographic element or in a top layer of a drafting film containing a photosensitive layer.
REFERENCES:
patent: 2548318 (1951-04-01), Norris
patent: 3516832 (1970-06-01), Earhart
patent: 3580734 (1971-05-01), Clachan et al.
patent: 3754924 (1973-08-01), De Geest et al.
patent: 3856530 (1974-12-01), Van Paesschen et al.
patent: 3877942 (1975-04-01), Nagatomo et al.
patent: 3941727 (1976-03-01), Timmerman et al.
patent: 4187113 (1980-05-01), Mathews et al.
patent: 4287299 (1981-09-01), Himmelmann et al.
Janssens Jan H.
Priem Jan J.
Timmerman Daniel M.
Agfa-Gevaert N.V.
Breiner A. W.
Hamilton Cynthia
Kittle John E.
LandOfFree
Method for the preparation of stable aqueous dispersions of poly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the preparation of stable aqueous dispersions of poly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the preparation of stable aqueous dispersions of poly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-984683