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Publication numberUS3900669 B1
Publication typeGrant
Publication dateAug 4, 1987
Filing dateOct 19, 1972
Priority dateOct 21, 1971
Also published asDE2251381A1, US3810209
Publication numberUS 3900669 B1, US 3900669B1, US-B1-3900669, US3900669 B1, US3900669B1
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet

US 3900669 B1
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4046741 *Feb 17, 1976Sep 6, 1977Stauffer Chemical CompanyPost-treatment of polyurea microcapsules
US4170483 *Jul 30, 1976Oct 9, 1979The Mead CorporationProcess for the production of self-contained carbonless copy record sheets and coating composition for use therein
US4191404 *Apr 7, 1978Mar 4, 1980The Mead CorporationProcess for producing a pressure-sensitive carbonless copy sheet using microcapsules formed in situ in a radiation curable binder
US4200667 *Apr 7, 1978Apr 29, 1980The Mead CorporationProcess for producing a pressure-sensitive carbonless copy sheet using microcapsules formed in situ in a radiation curable binder
US4303719 *Jul 29, 1980Dec 1, 1981Vassiliades Anthony EChromogenic copy system
US4321093 *Apr 4, 1980Mar 23, 1982The Standard Register CompanyMoisture-set color developer ink
US4324817 *Jul 23, 1980Apr 13, 1982Bayer AktiengesellschaftProcess for making carbonless copying paper
US4483974 *Jul 18, 1983Nov 20, 1984Bayer AktiengesellschaftProcess for the production of stabilized polyisocyanates, the polyisocyanates so-stabilized and their use in the production of polyurethanes
US4547429 *Sep 6, 1984Oct 15, 1985Cassella AktiengesellschaftEncapsulated salts of acid particles wherein the salt particles are surrounded by a polyurethane/polyurea casing
US4847152 *Oct 7, 1987Jul 11, 1989Bayer AktiengesellschaftMicrocapsules with improved polyurea walls
US4877706 *May 25, 1988Oct 31, 1989Xerox CorporationSingle component cold pressure fixable encapsulated toner compositions
US4891245 *Mar 21, 1986Jan 2, 1990Koh-I-Noor Rapidograph, Inc.Electrophoretic display particles and a process for their preparation
US4945121 *Aug 18, 1987Jul 31, 1990Koh-I-Noor Radiograph, Inc.Thermosetting dyed latex colorant dispersions
US4970031 *Jun 2, 1988Nov 13, 1990Nok CorporationProcess for preparing microcapsules with controlled-release
US5204184 *Sep 10, 1990Apr 20, 1993The Standard Register CompanyInterfacial polymerization with compound having at least three primary amine groups; carbonless copy paper
US5225118 *Aug 15, 1990Jul 6, 1993Boise Cascade CorporationProcess for manufacturing polyurea microcapsules and product therefrom
US5324584 *Apr 2, 1993Jun 28, 1994Boise Cascade CorporationProcess for manufacturing polyurea microcapsules and product therefrom
US5330566 *Feb 24, 1992Jul 19, 1994Appleton Papers Inc.Capsule coating
DE2808904A1 *Mar 2, 1978Sep 7, 1978Mead CorpVerfahren zur herstellung einer druckempfindlichen kohlefreien kopierfolie (copy sheet) unter verwendung von mikrokapseln, die in einem durch bestrahlung haertbaren binder in situ gebildet werden
Classifications
International ClassificationB01J13/16, B01J13/06, B41M5/165
Cooperative ClassificationB41M5/165, B01J13/16
European ClassificationB01J13/16, B41M5/165
Legal Events
DateCodeEventDescription
Aug 4, 1987B1Reexamination certificate first reexamination
Sep 30, 1986RRRequest for reexamination filed
Effective date: 19860811