Patents

PATENT NUMBER 4,197,346 
Self-contained pressure-sensitive record material and process of preparation

Abstract

A self-contained pressure-sensitive record material comprising a substrate and a coating thereon of an interspersed mixture of pressure-rupturable capsules of an oily solvent solution of a substantially colorless basic chromogenic material and capsules of solid co-reactant acidic resin particles, said co-reactant acidic resin being capable of producing a color upon contact with the chromogenic material. The capsule mixture is applied to the substrate in a single coating step, resulting in a greater production efficiency. The resulting record material provides better imaging characteristics with less print bleed than self-contained systems known in the prior art.

 

Current U.S. Class:	503/212; 106/31.19; 106/31.22; 106/31.24; 264/4.3; 264/4.4; 264/4.7; 264/7; 427/150; 427/151; 427/213.3; 428/402.2; 428/402.24; 428/914; 503/214; 503/215; 503/217; 503/220; 503/221; 503/225; 503/226; 523/161
Intern'l Class:	B32B 003/26
Field of Search:	427/150,151 428/914,307,308,309 106/21,22,30,32,308 M 252/317 282/27.5 264/4,7

Chemicals Referenced

Chemicals referenced: "ethyleneglycol dimethacrylate, triethylene glycol dimethacrylate, trimethylolpropane triacrylate (TMPTA), trimethylol propane trimethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate; 3-oximino-2-butanone methacrylate poly 4'-alkyl acylophenones; benzoin alkyl ethers; alkoxy phenyl ketones; O-acylated oximinoketones; polycyclic quinones; benzophenones, substituted benzophenones, xanthones, thioxanthones; chlorosulfonyl and chloromethyl polynuclear aromatic compounds, chlorosulfonyl; chloromethyl heterocyclic compounds, chlorosulfonyl; chloromethyl benzophenones; fluorenones; haloalkanes; 2,2'-dimethoxy-2-phenylacetophenone; isopropylxanthone; ethyl para-dimethylaminobenzoate; Michler's ketone; benzoin methyl ether; urea-formaldehyde resin and/or melamine formaldehyde resin (U.S. Pat. Nos. 4,001,140; 4,081,376, 4,089,802; 4,100,103; 4,105,823; 4,444,699 or 4,552,811); triarylmethane compounds; bisphenylmethane compounds; xanthene compounds; fluorans; thiazine compounds; spiropyran compounds; phthalide; leucauramine; fluoran; color formers include Crystal Violet Lactone (3,3-bis(4-dimethylaminophenyl)-6-dimethylaminophthalide, U.S. Pat. No. Re. 23,024) )3,3-bis(4-diethylaminophenyl)-6-dimethylaminophthalide,; phenyl-, indol-, pyrrol-, and carbazol-substituted phthalides (for example, in U.S. Patent Nos. 3,491,111; 3,491,112; 3,491,116; 3,509,174); nitro-, amino-, amido-, sulfonamido-, aminobenzylidene-, halo-, anilino-substituted fluorans (for example, in U.S. Pat. Nos. 3,624,107; 3,627,787; 3,641,011; 3,642,828; 3,681,390); spirodipyrans (U.S. Pat. No. 3,971,808); and pyridine and pyrazine compounds (for example, in U.S. Pat. Nos. 3,775,424 and 3,853,869); 3-diethylamino-6-methyl-7-anilino-flouran (U.S. Pat. No, 3,681,390); 2-anilino-3-methyl-6-dibutylamino-fluoran (U.S. Pat. 4,510,513) also known as 3-dibutylamino-6-methyl-7-anilino-fluoran; 3-dibutylamino-7-(2-chloroanilino)fluoran; 3-(N-ethyl-N-tetrahydrofurfurylamino)-6-methyl-7-3,5',6-tris(dimethylamino ) spiro[9H-fluorene-9,1'(3'H)-isobenzofuran]-3'-one; 7-(1-ethyl-2-methylindol-3-yl)-7-(4-diethylamino-2-ethoxyphenyl)-5,7-dihyd rofuro[3,4-b]pyridin-5-one (U.S. Pat. No. 4,246,318); 3-diethylamino-7-(2-chloroanilino)fluoran (U.S. Pat. No. 3,920,510); 3-(N-methylcyclohexylamino)-6-methyl-7-anilinofluoran (U.S. Pat. No. 3,959,571); 7-(1-octyl-2-methylindol-3-yl)-7-(4-diethylamino-2-ethoxyphenyl)-5,7-dihyd rofuro[3,4-b]pyridin-5-one; 3-diethylamino-7,8-benzofluoran; 3,3-bis(1-ethyl-2-methylindol-3-yl)phthalide; 3-diethylamino-7-dibenzylamino-2,2'-spiro-di- [2H-1-benzoaromatic carbozylic acids; phenolic developers (U.S. Pat. Nos. 3,244,550 and 4,573,063); acidic polymeric material such as phenol-formaldehyde polymers, etc. (U.S. Pat. Nos. 3,455,721 and 3,672,935); and metal-modified phenolic resins (U.S. Pat. Nos. 3,732,120; 3,737,410; 4,165,102; 4,165,103;4,166,64;4,188,456); ethyldiphenylmethane (U.S. Pat. No. 3,996,405); benzyxylenes (U.S. Pat. No. 4,130,299); alkylbiphenyls; propylbiphenyl (U.S. Pat. Nos. 3,627,581 and butylbiphenyl (U.S. Pat No. 4,287,074); dialkylphthalates; dibutyl phthalate dioctylphthalate, dinonyl phthalate and ditridecylphthalate; 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (U.S. Pat. No. 4,027,065); .sup.C 10-.sup.C 14 alkyl benzenes such as dodecyl benzene; alkyl or aralkyl benzoates such as benzyl benzoate; alkylated naphthalenes such as dipropylnaphthalene (U.S. Pat. No. 3,806,463); partially hydrogenated terphenyls; high-boiling straight or branched chain hydrocarbons; Styrenebutadiene, Dow 620 Latex." "Internal Phase (IP) 25.0 g Sure Sol 290, sec-butylbiphenyl solvent; 25.0 g Norpar 13, n-paraffin .sup.C 13 solvent 2.5 g PSD-O (Shin Nisso Kako Co., Ltd.) (orange dye) 3'-chloro-6'-(N-cyclohexylamino flouran) Resin Grind (C) 90.0 g #32420 Resin (Durex), phenolic resin 10.0 g Tamol 731 (Rohm and Haas) (25%), surfactant 150.0 g Water; 3.00 g Tetraethyl CVL, (3,3-bis(4-diethylaminophenyl)-6-dimethylaminophthalide) 0.75 g 2-Chlorothioxanthone, (photoinitiator)." Preparation of Second Set of Microcapsules (E) These are prepared like (A), except the IP consists of: 25.0 g Sure Sol 290; 25.0 g Norpar 13; 2.5 g I6B (Ciba Geigy), red dye, 3,3-bis(1-octyl-1-methyl indol-3yl) phthalide."