Metal Of Atomic Number 22-30 Patents (Class 503/211)
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Patent number: 4870048Abstract: A color developer sheet which brings about color development by contact with a substantially colorless electron-donating color former, where said sheet contains an organometallic compound represented by the following general formula (I), (II) or (III) to enhance light resistance and stability of the color product obtained by the color development: ##STR1## wherein M represents a nickel atom, a copper atom, a cobalt atom, or a zinc atom; X.sub.1 and X.sub.2 each represents an oxygen atom, a sulfur atom, or --NR.sub.5 --, in which R.sub.5 represents a hydrogen atom, an alkyl group, an aryl group, or a hydroxyl group; X.sub.3 represents a hydroxyl group, or a mercapto group; Y represents an oxygen atom, a sulfur atom, or --CHR.sub.6, in which R.sub.6 represents a hydrogen atom, an alkyl group, or an aryl group; R.sub.1, R.sub.2, R.sub.3 and R.sub.Type: GrantFiled: April 8, 1988Date of Patent: September 26, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsumi Matsuoka, Shojiro Sano, Keiso Saeki, Masanobu Takashima, Ken Iwakura
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Patent number: 4861749Abstract: A heat-sensitive recording material comprises a support and a color-developing layer having a particular saturated higher fatty acid iron salt, a particular polyvalent phenolic derivative and a colorless leuco dyestuff.The heat-sensitive recording material of the present invention provides both a superior image contrast and a high stability of developed image against oily substances and solvents.Type: GrantFiled: June 22, 1988Date of Patent: August 29, 1989Assignee: Jujo Paper Co., Ltd.Inventors: Toshimi Satake, Tomoaki Nagai, Fumio Fujimura
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Patent number: 4853363Abstract: A heat-sensitive recording material has a substrate and a color-developing layer which comprises a near infrared-absorbing fluorantype leuco dye.This heat-sensitive recording material provides a superior optical readability in near infrared region.Type: GrantFiled: April 6, 1988Date of Patent: August 1, 1989Assignee: Jujo Paper Co., Ltd.Inventors: Toshimi Satake, Toshiaki Minami, Tomoaki Nagai, Fumio Fujimura
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Patent number: 4849396Abstract: A heat-sensitive recording material including a support and a color-developing layer having both an electron donor and a metal double salt or higher fatty acid having 16-35 carbon atoms as an electron acceptor. The heat-sensitive recording material is superior is dispersibility, image contrast, oil resistance, solvent resistance and optical readability in the near infrared region.Type: GrantFiled: May 22, 1987Date of Patent: July 18, 1989Assignee: Jujo Paper Co., Ltd.Inventors: Toshimi Satake, Toshiaki Minami, Tomoaki Nagai, Fumio Fujimura
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Patent number: 4849397Abstract: A pressure-sensitive recording medium producing a colored image utilizing the reaction between a substantially colorless electron donating dye precursor and an electron accepting developer is disclosed. This recording sheet is characterized in that the electron accepting developer layer contains an aromatic carboxylic acid metal salt and the electron donating dye precursor layer contains (a) an indolylazaphthalide compound and (b) Crystal Violet lactone.Type: GrantFiled: October 21, 1988Date of Patent: July 18, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Shojiro Sano, Keiso Saeki
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Patent number: 4835134Abstract: The color-developing sheet for pressure-sensitive recording sheets comprises a color-developing agent containing a phenolic polymer in combination with a polyvalent metal salt of carboxylated terpenephenol resin and/or a reaction product of carboxylated terpenephenol resin, aromatic carboxylic acid and polyvalent metal compound.This color-developing sheet provides superior plasticizer resistance and less deterioration of a color-developing ability with the lapse of time.Type: GrantFiled: December 11, 1987Date of Patent: May 30, 1989Assignee: Jujo Paper Co., Ltd.Inventors: Hiroaki Umeda, Mamoru Suzuki, Akira Hasegawa, Kunio Hata
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Patent number: 4835135Abstract: The color-developing sheet for pressure-sensitive recording sheet contains a color-developing agent comprising an inorganic solid acid in combination with a polyvalent metal salt of carboxylated terpenephenol resin and/or a reaction product of carboxylated terpenephenol resin, aromatic carboxylic acid and polyvalent metal compound.This color-developing sheet is superior in both sunlight fading resistance and water resistance.Type: GrantFiled: December 18, 1987Date of Patent: May 30, 1989Assignee: Jujo Paper Co., Ltd.Inventors: Hiroaki Umeda, Mamoru Suzuki, Akira Hasegawa, Kunio Hata
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Patent number: 4833119Abstract: The color-developing sheet for pressure-sensitive recording sheets contains a color-developing agent comprising a polyvalent metal salt of aromatic carboxylic acid in combination with a polyvalent metal salt of carboxylated terpenephenol resin and/or a reaction product of carboxylated terpenephenol resin, aromatic carboxylic acid and polyvalent metal compound.This color-developing sheet provides a higher color-developing rate and a superior color-developing intensity.Type: GrantFiled: December 29, 1987Date of Patent: May 23, 1989Assignee: Jujo Paper Co., Ltd.Inventors: Hiroaki Umeda, Mamoru Suzuki, Akira Hasegawa, Kunio Hata
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Patent number: 4829046Abstract: A positive-acting thermographic material which is black or dark colored in the unexposed condition turns white or light colored when exposed to elevated temperatures. The material comprises a binder, a dark colored complex of ferric iron with a ligand chosen from organothiophosphorus acids, and a white organophosphorus acid or its alkali or alkaline earth metal salt. At elevated temperatures a double decomposition reaction occurs giving the light colored complex of ferric iron with the organophosphorus acid.Type: GrantFiled: October 15, 1987Date of Patent: May 9, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventor: David R. Whitcomb
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Patent number: 4820683Abstract: An improved thermally-responsive record material having improved image retention is disclosed. The invention is an improved thermally-responsive record member, typically a sheet material, bearing a thermally-responsive color-forming composition comprising a chromogenic material, an acidic developer material, and a metal salt of a compound of the formula ##STR1## wherein R.sup.a is selected from --CH.dbd.CH, ##STR2## --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --, --(CH.sub.2).sub.3 --, --CH.sub.2 --CH.dbd.CH--, and --CH.sub.2 --wherein R.sub.1 is selected from hydrogen, halogen, alkyl, oxyalkyl, or NO.sub.2 with the proviso that the alkyl groups are of 1-5 carbons wherein M is a metal selected from Zn, Ca, Sn, Ni, Cu, Al, Co, and Mg.Type: GrantFiled: December 4, 1987Date of Patent: April 11, 1989Assignee: Appleton Papers Inc.Inventors: Steven L. Vervacke, Kenneth D. Glanz
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Patent number: 4808565Abstract: Thermographic materials are colorless when unexposed, but provide an intense dark image when thermally addressed. The materials comprise white ferric organophosphate, ferric organophosphinate, or ferric organophosphonate in a clear binder with a colorless catechol or polycatechol held in said binder in solid solution. The choice of substituents on the catechol nucleus can give a change in the color of the thermal image together and provide good near infrared absorption. Use of mixed catechols can give achromatic black images. These combinations of materials show high stability at ambient temperatures.Type: GrantFiled: July 7, 1987Date of Patent: February 28, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventors: David R. Whitcomb, Jon A. Bjork
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Patent number: 4806521Abstract: The color-developing agent for pressure-sensitive recording sheet comprises a reaction product of carboxylated terpenephenol resin, aromatic carboxylic acid and polyvalent metal compound. The color-developing sheet containing the above color-developing agent provides an excellent color-developing rate and an improved light fastness.Type: GrantFiled: March 17, 1988Date of Patent: February 21, 1989Assignee: Jujo Paper Co., Ltd.Inventors: Hiroaki Umeda, Mamoru Suzuki, Akira Hasegawa, Kunio Hata
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Patent number: 4803193Abstract: In a heat-sensitive recording material comprising on a substrate a recording layer containing a colorless or pale-colored basic dye and an electron accepting reactant material, the heat-sensitive recording material which is characterized in that the basic dye comprises at least one chromeno compound represented by the formula [I] below ##STR1## wherein G and R.sub.1 .about.R.sub.4 are defined in the specification.Type: GrantFiled: December 23, 1987Date of Patent: February 7, 1989Assignee: Kanzaki Paper Manufacturing Co., Ltd.Inventors: Nobuo Kanda, Yukihiro Abe, Mitsuru Kondo
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Patent number: 4794101Abstract: In a heat-sensitive recording material incorporating a colorless or pale-colored basic dye and a color acceptor which is reactive with the dye to form a color when contacted therewith, the recording material characterized in that (a) as the basic dye are used 100 parts by weight of a specific phthalide derivative of the formula [I] and 20 to 100 parts by weight of a specific black color-forming fluoran derivative of the formula [II], (b) as the color acceptor is used a polyvalent metal salt of an aromatic carboxylic acid and (c) a recording sensitizer is further used, and whereby the resulting record images are at least 0.75 in PCS value at 800 nm.Type: GrantFiled: June 8, 1987Date of Patent: December 27, 1988Assignee: Kanzaki Paper Manufacturing Co., Ltd.Inventors: Nobuo Kanda, Kimie Tsuboi, Fumio Seyama, Mitsuru Kondo
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Patent number: 4749680Abstract: The color-developing agent for pressure-sensitive recording sheet comprises the polyvalent-metal salt of carboxylated terpenephenol resin. The color-developing sheet containing the above color-developing agent provides excellent yellowing-resistance, superior color-developing ability and improved fastness of the colored image.Type: GrantFiled: June 9, 1986Date of Patent: June 7, 1988Assignee: Jujo Paper Co., Ltd.Inventors: Hiroaki Umeda, Mamoru Suzuki, Akira Hasegawa, Kunio Hata
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Patent number: 4746645Abstract: Disclosed is a heat-sensitive recording material comprising a base sheet and a heat-sensitive record layer formed over the base sheet and comprising a colorless or pale-colored basic dye and a color developing material capable of forming a color when contacted with the dye, the heat-sensitive recording material being characterized in that the heat-sensitive record layer contains as the color developing material at least one multi-valent metal salt of a halophthalic acid derivative represented by the formula ##STR1## wherein R represents a divalent saturated or unsaturated C.sub.2 -C.sub.12 aliphatic hydrocarbon group which may optionally have a hydroxyl, C.sub.1 -C.sub.3 acyloxy or phenyl group as a substituent or a divalent saturated or unsaturated C.sub.4 -C.sub.6 aliphatic hydrocarbon group containing one or two ether bonds, X is a halogen atom and n is an integer of 1-4.Type: GrantFiled: December 16, 1986Date of Patent: May 24, 1988Assignees: Kanzaki Paper Manufacturing Company, Limited, Sugai Chemical Industry Co., Ltd.Inventors: Teijiro Kitao, Mitsuru Kondo, Toshitake Suzuki, Masayuki Omatsu, Hironori Fujii, Kenji Minami
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Patent number: 4731353Abstract: Disclosed is a heat-sensitive recording material comprising a base sheet and a heat-sensitive record layer formed over the base sheet and comprising a colorless or pale-colored basic dye and a color developing material capable of forming a color when contacted with the dye, the heat-sensitive recording material being characterized in that the heat-sensitive record layer contains as the color developing material at least one multi-valent metal salt of an indole-2-carboxylic acid derivative represented by the formula ##STR1## wherein R.sub.1 through R.sub.6 are hydrogen or other substituent. The heat-sensitive recording material is resistant to plasticizer and diazo developer, and also is suitable for high-speed recording.Type: GrantFiled: February 12, 1987Date of Patent: March 15, 1988Assignee: Kanzaki Paper Manufacturing Company, LimitedInventors: Fumio Hama, Nobuo Kanda, Mitsuru Kondo
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Patent number: 4729983Abstract: A heat-sensitive recording material comprises a support and a color-developing layer having both a particular saturated higher fatty acid iron salt and a particular polyvalent phenolic derivative. The heat-sensitive recording material provides a superior thermal response and a high stabilty of the developed image.Type: GrantFiled: June 9, 1986Date of Patent: March 8, 1988Assignee: Jujo Paper Co., Ltd.Inventors: Toshimi Satake, Tomoaki Nagai, Fumio Fujimura
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Patent number: 4704379Abstract: A pressure sensitive manifold sheet characterized in that a chelate record material comprising an iron (III) compound and/or a vanadium compound, and an aromatic compound having at least one of hydroxyl group and mercapto group on the aromatic ring in combination therewith is used further in combination with an infrared absorbing organic compound.Type: GrantFiled: March 3, 1986Date of Patent: November 3, 1987Assignee: Kanzaki Paper Manufacturing Co. Ltd.Inventors: Shunsuke Shioi, Kazuyuki Shinmitsu, Nobuo Kanda, Mitsuru Kondo, Makoto Miyake