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公开(公告)号：JP2001225560A
公开(公告)日：2001-08-21
申请号：JP2000041167
申请日：2000-02-18
Applicant: DAICEL CHEM
Inventor： KATAOKA KAZUYA , OMURA MASAYA
IPC: B32B5/18 , B41M5/382 , B41M5/385 , B41M5/388 , B41M5/39 , B41M5/392 , B41M5/395 , B41M5/50 , B41M5/52 , B41M5/38
Abstract: PROBLEM TO BE SOLVED: To form a recording image having excellent absorbability of a dye and a small blur in a recording system for forming an image by vaporizing or sublimating the dye. SOLUTION: A recording sheet is obtained by laminating a dye receiving layer on at least one surface of a base material. The receiving layer containers a dyeable resin layer (a polyester polymer, a polyurethane polymer, a vinyl polymer, a polyamide polymer, an epoxy polymer, a cellulous derivative or the like) and a porous layer laminated on the resin layer (cellulose derivative, a vinyl polymer, a polysulfone polymer or the like).
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公开(公告)号：JPH10337969A
公开(公告)日：1998-12-22
申请号：JP14966697
申请日：1997-06-06
Applicant: DAICEL CHEM
Inventor： FUJIWA TAKAAKI , KATAOKA KAZUYA , TAKEMOTO SHIN
Abstract: PROBLEM TO BE SOLVED: To form a clear recording image with excellent releasability from a thermal transfer sheet by a dye receptive layer of a thermal transfer recording image receiving element. SOLUTION: A dye receptive layer is formed of resin composition containing non-yellowing urethane resin or resin composition containing urethane resin and vinyl polymer. The resin composition may contain urethane resin and polymer dispersed in particulate state in the urethane resin. The composition may be polymer aqueous emulsion containing polymer particles having a core-shell structure or microdomain structure constituted by urethane resin and vinyl polymer.
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公开(公告)号：JP2001323131A
公开(公告)日：2001-11-20
申请号：JP2000144383
申请日：2000-05-17
Applicant: DAICEL CHEM
Inventor： KATAOKA KAZUYA , KAWAI KENICHI
IPC: B41M5/36 , C08F2/44 , C08K5/01 , C08K5/02 , C08K5/05 , C08K5/09 , C08K5/17 , C08K5/37 , C08K5/38 , C08L57/00 , C08L63/00 , G09F9/30
Abstract: PROBLEM TO BE SOLVED: To productively provide a reversible heat-sensitive recording displaying medium excellent in strength of a recording film, heat resistance and adhesion to a substrate and a protective layer, hardly suffering from deterioration in characteristics even subjected many times to writing to record or display an image and erasure thereof and excellent in image quality such as resolution and contrast. SOLUTION: The reversible heat-sensitive recording displaying medium is mainly composed of a resin and an organic low-molecular compound, where the resin comprises an epoxy compound and a polymer of a polymerizable unsaturated monomer.
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公开(公告)号：JPH10337968A
公开(公告)日：1998-12-22
申请号：JP14966597
申请日：1997-06-06
Applicant: DAICEL CHEM
Inventor： FUJIWA TAKAAKI , KATAOKA KAZUYA , TAKEMOTO SHIN
Abstract: PROBLEM TO BE SOLVED: To form a clear recording image with excellent releasability from a thermal transfer sheet by a dye receptive layer of a thermal transfer recording image receiving element. SOLUTION: A dye receptive layer is formed of resin composition containing 5 to 90 wt.% of aromatic component or resin composition containing urethane resin and vinyl polymer. The resin composition may contain urethane resin and polymer dispersed in particulate state in the urethane resin. The composition may be polymer aqueous emulsion containing polymer particles having a core- shell structure or microdomain structure constituted by urethane resin and vinyl polymer.
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公开(公告)号：JPH10337970A
公开(公告)日：1998-12-22
申请号：JP14966797
申请日：1997-06-06
Applicant: DAICEL CHEM
Inventor： FUJIWA TAKAAKI , KATAOKA KAZUYA , TAKEMOTO SHIN
Abstract: PROBLEM TO BE SOLVED: To form images with superior peelable property, high coloring density, and excellent vividness by forming out of copolymer of silicone macro monomer and vinyl monomer. SOLUTION: The copolymer is formed of a polymer produced by an emulsion polymerization of silicone macro monomer and vinyl monomer. Besides, representative silicone macro monomer an be indicated by a formula I or II, and in the formulas I, II, R shows a hydrogen atom or a methyl group, R indicates a C2-4 alkylene group, R expresses an alkyl group or an aryl group, and (n) shows an integral number of 10-150. Herein, vinyl ester or its class is used for, e.g. a vinyl monomer. The rate between silicone macro monomer and vinyl monomer is of the order of silicone macro monomer/vinyl monomer=10/90-60/40 (weight ratio). Also, polymer particles obtained by emulsion polymerization are on the order of 0.01-1 μm in its mean particle diameter.
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Patent Agency Ranking
公开(公告)号：JPH10309874A
公开(公告)日：1998-11-24
申请号：JP24419097
申请日：1997-09-09
Applicant: DAICEL CHEM
Inventor： KATAOKA KAZUYA , TAKEMOTO SHIN , FUJIWA TAKAAKI , MIZUMOTO SEIJI
Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition for image receiving layer required for forming a clear image by thermal transfer system or ink jet recording system. SOLUTION: An image receiving layer is formed by coating at least one side of a basic maternal with a resin composition composed of urethane resin 1 and a polymer 2 of polymeric unsaturated compound. In the resin composition, the polymer 2 may be dispersed granularly into the urethane resin 1 or the resin composition may be an aqueous polymer emulsion containing polymer particles having core shell structure or microdomain structure constituted of the urethane resin 1 and the polymer 2. The resin composition may also contain a hydrophilic polymer.
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公开(公告)号：JP2001260538A
公开(公告)日：2001-09-25
申请号：JP2000079041
申请日：2000-03-21
Applicant: DAICEL CHEM
Inventor： SUMIDA KATSUHIKO , KATAOKA KAZUYA
Abstract: PROBLEM TO BE SOLVED: To provide a reversible heat-sensitive recording medium, which has a favorable image contrast, with which the formation and erase of an image are possible, which is damaged a few even through the repetitive use between coloring and decoloring, and which has an excellent durability and a high humid ity resistance. SOLUTION: In the reversible heat-sensitive recording medium having a reversible heat-sensitive recording layer including a leuco dye, a reversible developer, which colors the leuco dye under heat and then decolors it under re-heat, and a resin matrix, a resin material used in the resin matrix is prepared by dispersing the leuco dye and the reversible developer in a resin consisting of a urethane resin (A) and a polymerizable unsaturated monomer polymer (B).
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公开(公告)号：JPH11208125A
公开(公告)日：1999-08-03
申请号：JP1447698
申请日：1998-01-27
Applicant: DAICEL CHEM
Inventor： KATAOKA KAZUYA
Abstract: PROBLEM TO BE SOLVED: To obtain a sheet for recording which can form a recorded image being excellent in dyeing properties and blurred little, in a recording system wherein the image is formed by vaporizing or sublimating a dye. SOLUTION: In this sheet for recording, a dye accepting layer containing dyeing resin (polyester resin, polyurethane resin, acrylic resin, nylon resin, a cellulose derivative, vinyl resin and the like) and a low-dyeing substance (resin of which the surface energy is about 5-35 dyne/cm, resin of which the glass transition temperature is about 50-160 deg.C, inorganic glass and the like) is formed at least on one surface of a base. The dye accepting layer may also be constituted of a composite of the dyeing resin and the low-dyeing substance. This composite may also have a block structure, a sea island structure or a core shell structure and it may also be constituted of a porous body and resin with which pores of this porous body are impregnated.
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公开(公告)号：JPH10337967A
公开(公告)日：1998-12-22
申请号：JP14816397
申请日：1997-06-05
Applicant: DAICEL CHEM
Inventor： FUJIWA TAKAAKI , KATAOKA KAZUYA , TAKEMOTO SHIN
Abstract: PROBLEM TO BE SOLVED: To form a clear recording image with excellent releasability from a thermal transfer sheet and high color developing density by a dye receptive layer of a thermal transfer recording image receiving element. SOLUTION: A dye receptive layer is formed of resin composition constituted by a core-shell structure in which glass transition temperature Tg1 of the one polymer of polymers for forming a core and shell is lower than 30 deg.C (e.g. -50 to 25 deg.C), that Tg2 of the other polymer is 30 deg.C or higher (e.g. 30 to 110 deg.C), and glass transition temperature difference Tg=Tg2-Tg1 of the both is 10C or higher (e.g. 20 to 150 deg.C). The one polymer of the polymers for forming the core and shell is formed of aromatic component and may be formed of resin composition in which concentration of the component is 5 to 80 wt.% of the overall core and shell polymer.
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公开(公告)号：JPH10330609A
公开(公告)日：1998-12-15
申请号：JP14816197
申请日：1997-06-05
Applicant: DAICEL CHEM
Inventor： FUJIWA TAKAAKI , KATAOKA KAZUYA , TAKEMOTO SHIN
IPC: B41M5/382 , B41M5/50 , B41M5/52 , C08L25/00 , C08L33/00 , C08L67/00 , C08L71/00 , C08L71/10 , B41M5/38
Abstract: PROBLEM TO BE SOLVED: To obtain a clear recording image having a high coloration concentration by a dye receiving layer of a receiving image body for thermal imprint recording. SOLUTION: A dye receiving layer comprises a resin composition composed of a phenoxy resin or a resin composition composed of the phenoxy resin and at least one of a vinyl-based resin and a polyester based resin. Examples of the vinyl-based resin include an acrylic resin. In this resin composition, the phenoxy resin may be dispersed in a particular state in the resin. The resin composition may be a polymer aqueous emulsion containing polymer particles having a core/shell structure or a microdomain structure constituted of the phenoxy resin and at least one of the vinyl-based resin and the polyester based resin.
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