Patents by Inventor Kazuhide Hayama
Kazuhide Hayama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6921576Abstract: An active energy ray-curable antistatic coating composition contains (A) inorganic oxide fine particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent containing at least a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and/or a hydrolysis condensate of the silane coupling agent, and optionally contains (C) a polyfunctional (meth)acrylate having at least 3 (meth)acryloyl groups in a molecule.Type: GrantFiled: October 9, 2002Date of Patent: July 26, 2005Assignee: Mitsubishi Chemical CorporationInventors: Makoto Terauchi, Noritaka Hosokawa, Kazuhide Hayama
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Patent number: 6616920Abstract: The invention provides a nail-care polymer with great adhesion to nail, good surface smoothness and gloss and high coating durability for use in a nail-care product.Type: GrantFiled: August 23, 2000Date of Patent: September 9, 2003Assignee: Mitsubishi Chemical America, Inc.Inventors: Kayo Ito, Tomoaki Hiwatashi, Shigeoki Kawaguchi, Yukio Saito, Kazuhide Hayama
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Publication number: 20030129421Abstract: An active energy ray-curable antistatic coating composition contains (A) inorganic oxide fine particles having a side chain having a molecular weight of at least 300 and having a functional group and (B) an antistatic agent containing at least a quaternary ammonium salt group-containing polymer, a quaternary ammonium salt group-containing silane coupling agent and/or a hydrolysis condensate of the silane coupling agent, and optionally contains (C) a polyfunctional (meth)acrylate having at least 3 (meth)acryloyl groups in a molecule.Type: ApplicationFiled: October 9, 2002Publication date: July 10, 2003Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Makoto Terauchi, Noritaka Hosokawa, Kazuhide Hayama
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Patent number: 6586106Abstract: Described is a thermoplastic resin film having on a surface thereof a hydroxy-modified imine polymer containing repeating units represented by the following general formula (I) in an amount of 5 mol % or more based on the total of repeating units.Type: GrantFiled: August 6, 2001Date of Patent: July 1, 2003Assignee: Yupo CorporationInventors: Nobuhiro Shibuya, Kazuhisa Kitamura, Ayako Shibata, Yasuo Kitani, Kazuhide Hayama
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Patent number: 6403731Abstract: Disclosed is a process for preparing a polymer solution having a reduced unreacted unsaturated monomer content, comprising radically polymerizing at least one unsaturated monomer in a solvent in the presence of a radical polymerization initiator, the at least one unsaturated monomer having a lower boiling point than that of the solvent, wherein the weight ratio of the total amount of the unsaturated monomers to the solvent is from 1/9 to 7/3, the polymerization is carried out until the conversion of the unsaturated monomer having the lowest conversion of all the other unsaturated monomers whose boiling point is lower than that of the solvent reaches at least 85%, and, after completion of the polymerization, the reaction mixture is rectified to remove the unreacted unsaturated monomer or monomers.Type: GrantFiled: April 6, 2000Date of Patent: June 11, 2002Assignee: Mitsubishi Chemical America, Inc.Inventors: Yukio Saitou, Shigeoki Kawaguchi, Kouhei Sawa, Tadahiko Kondou, Kazuhide Hayama
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Publication number: 20020054991Abstract: Described is a thermoplastic resin film having on a surface thereof a hydroxy-modified imine polymer containing repeating units represented by the following general formula (I) in an amount of 5 mol % or more based on the total of repeating units.Type: ApplicationFiled: August 6, 2001Publication date: May 9, 2002Applicant: YUPO CORPORATIONInventors: Nobuhiro Shibuya, Kazuhisa Kitamura, Ayako Shibata, Yasuo Kitani, Kazuhide Hayama
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Patent number: 6375932Abstract: A hair cosmetic composition having an excellent hair setting property, and which imparts to hair good flexibility and a good finish feeling. The hair cosmetic composition comprises (a) a water-soluble amine-oxide-containing polymer having a weight-average molecular weight of 10,000 to 500,000 and (b) a water-soluble polymer selected from the group consisting of nonionic, cationic, anionic and amphoteric polymers. The weight ratio of component (a) to component (b) falls within a range of from 1:10 to 10:1. Components (a) and (b) are incorporated in a total amount of from 0.1 to 10 wt. % based on the hair cosmetic composition.Type: GrantFiled: September 9, 1997Date of Patent: April 23, 2002Assignee: Mitsubishi Chemical CorporationInventors: Tomoaki Hiwatashi, Yasuo Kitani, Kanji Narazaki, Kayo Itou, Kazuhide Hayama
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Patent number: 6300411Abstract: The present invention discloses an aqueous resin composition containing (A) a copolymer of (a) a monomer having one or more aldehyde groups or ketone groups, and a radical polymerizable unsaturated bond, in a molecule, with (b) a monomer having a radical polymerizable unsaturated bond copolymerizable with the monomer (a); (B) a hydrazine compound of the following formula (1) where R1, R2, R3 and R4 independently represent a hydrogen atom, or a hydroxyl group, p denotes an integer of 0 to 3, and q denotes an integer of 2 to 8, provided that the relationships p+q≦8 and p<q are satisfied; and an aqueous medium. When the aqueous resin composition of the present invention is applied and then dried, a film excellent in film intactness, transparency, whitening after water immersion, and adhesion after water immersion can be formed.Type: GrantFiled: March 19, 1999Date of Patent: October 9, 2001Assignee: Mitsubishi Chemical CorporationInventors: Toshiya Seko, Kazuhide Hayama, Yasuo Kitani, Kazumasa Kinugasa
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Patent number: 6123933Abstract: A hair cosmetic composition comprising an amine-oxide-containing water-soluble resin having a weight-average molecular weight of 5,000 to 1,000,000. The hair cosmetic composition of the present invention has excellent setting force, conditioning effects and hair-washing property and being free from stickiness.Type: GrantFiled: July 17, 1996Date of Patent: September 26, 2000Assignee: Mitsubishi Chemical CorporationInventors: Kazuhide Hayama, Yasuo Kitani, Tomoaki Hiwatashi
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Patent number: 6017974Abstract: An activation energy beam curable coating composition containing (A) a polymer having an organopolysiloxane unit and a quaternary ammonium salt unit and (B) a polyfunctional acrylate having 3 or more acryloyl groups in the molecule is disclosed. A film excellent in abrasion resistance, antistatic properties and transparency can be formed by applying the activation energy beam curable coating composition of the present invention to the surface of a material, and irradiating the coated surface with an activation energy beam.Type: GrantFiled: April 2, 1998Date of Patent: January 25, 2000Assignee: Mitsubishi Chemical CorporationInventors: Noritaka Hosokawa, Kazuhide Hayama
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Patent number: 5565501Abstract: The present invention provides a composition comprising (a) a carboxyl-group containing multifunctional acrylate; (b) a multifunctional acrylate having three or more acryloyl groups in the molecule; (c) an organic solvent; and optionally, (d) a photopolymerization initiator, (e) a colloidal metal oxide and (f) an acrylic resin is provided. This composition is applied to a plastic substrate and then irradiated with active energy rays, thereby forming a hard-coating layer having good adhesiveness to the substrate, transparency and hardwearing properties.Type: GrantFiled: April 17, 1995Date of Patent: October 15, 1996Assignee: Mitsubishi Chemical CorporationInventors: Noritaka Hosokawa, Kazuhide Hayama
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Patent number: 5543440Abstract: A process for producing a powdered carboxyl-containing polymer comprising mixing a solution of a water-insoluble polymer containing a carboxyl group per molecule in a hydrophilic organic solvent (e.g., ethanol) and an aqueous solution of a dispersant comprising a neutralized copolymer of a carboxyl-containing unsaturated monomer and a (meth)acrylic ester to precipitate the water-insoluble polymer. Fine polymer particles free from adhesion or agglomeration are obtained efficiently. Since any residual unreacted carboxyl-containing monomers are dissolved out in water as a precipitating solvent, the resulting powdered polymer has a reduced residual content of the unreacted monomers which may be poisonous and is therefore useful as a base resin of cosmetics or a coating resin for applications involving contact with the skin.Type: GrantFiled: January 26, 1995Date of Patent: August 6, 1996Assignee: Mitsubishi Chemical CorporationInventors: Kazuhide Hayama, Yukio Saitoh, Yasuo Kitani, Katsuhiko Yamada
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Patent number: 5480634Abstract: A polymer suitable for use in hair care products comprising a copolymer comprising(a) a unit of a hydrophilic ethylenically unsaturated monomer such as dimethylaminoethyl methacrylate in a quantity of 15 to 99.9% by weight;(b) a unit of an ethylenically unsaturated monomer having a polysiloxane group such as: ##STR1## in a quantity of 0.1 to 85% by weight; and (c) a unit of an optional hydrophobic unsaturated monomer such as lauryl methacrylate in a quantity of 0 to 84.9% by weight.Type: GrantFiled: December 2, 1993Date of Patent: January 2, 1996Assignee: Mitsubishi Chemical CorporationInventors: Kazuhide Hayama, Kanji Narazaki, Sigeoki Kawaguchi
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Patent number: 5409965Abstract: An active energy ray-curing abrasion resistant coating composition is provided by incorporating following components: (a) a carboxylate-containing polyfunctional acrylate obtained by reacting a tetracarboxylic dianhydride and a hydroxyl group-containing polyfunctional acrylate having hydroxyl group(s) and at least three acryloyl groups and then neutralizing the reaction product; (b) a polyfunctional acrylate having at least three acryloyl groups; (c) an organic solvent; and (d) a photopolymerization initiator. The composition may comprise in addition to the components (e) a silica sol in an organic solvent as a dispersion medium. The composition may further comprise in addition to the components (f) an acrylic resin. Such composition is an active energy ray-curing abrasion-resistant coating composition which forms a film having excellent adhesion to a plastic sustrate, transparency, abrasion resistance and antistatic properties.Type: GrantFiled: July 26, 1994Date of Patent: April 25, 1995Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Noritaka Hosokawa, Kazuhide Hayama
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Patent number: 5378735Abstract: An ultraviolet-curing covering composition comprising Component A which is obtained by reacting a hydroxyl group-containing polyfunctional acrylate with a silane coupling agent containing an isocyanate group(s), Component B of a polyfunctional acrylate having 3 or more acryloyl groups in the molecule, Component C of a silica sol in an organic solvent, and Component D of a photopolymerization initiator. This composition forms a coating film shows excellent hardwearing properties and adhesion to plastic substrates after ultraviolet-curing. Blending Component E of an acrylic resin and Component F of a solvent to the composition forms a coating film which can be processed before curing.Type: GrantFiled: April 6, 1993Date of Patent: January 3, 1995Assignee: Mitsubishi Petrochemical Company, Ltd.Inventors: Noritaka Hosokawa, Kazuhide Hayama
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Patent number: 5362485Abstract: A hair cosmetic composition containing a graft copolymer or an alternating block copolymer, each of which comprises a first unit containing a polysiloxane group and a second unit containing a polymer of unsaturated monomers is provided. The first and second units are linked by sulfide linkage. The hair cosmetic composition provides hair with softness, luster, combing smoothness, styling ease, enhanced volume, and has good hairstyle retainability and damage-restoring characteristics.Type: GrantFiled: July 26, 1993Date of Patent: November 8, 1994Assignee: Mitsubishi Petrochemical Company, Ltd.Inventors: Kazuhide Hayama, Kanji Narazaki, Yukio Saitoh, Tomoaki Hiwatashi, Isao Itoh, Sigeoki Kawaguchi
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Patent number: 5288360Abstract: An adhesive resin composition comprising a polymer of a radically polymerizable epoxy resin (I) and a monomer (c), the radically polymerizable epoxy resin (I) being a reaction product between an epoxy resin (a) and a radically polymerizable monomer (b) having a function group reactive to epoxy group or hydroxyl group in said epoxy resin (a), having an equivalent ratio (b)/(a)=0.01.about.0.9 and said monomer (c) being copolymerizable with said radically polymerizable epoxy resin (I) and containing alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer serving as an indispensable component. The adhesive resin composition has an excellent adhesion between fluorine-contained resins and metal substrates.Type: GrantFiled: October 9, 1992Date of Patent: February 22, 1994Assignee: Mitsubishi Petrochemical Company, Ltd.Inventors: Kazuhide Hayama, Kazuyuki Hata, Keizo Abe, Takahiro Ozu
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Patent number: 5234524Abstract: There is provided a process for preparing a laminate, comprising the step of adhering a layer of an olefin polymer and a layer of a fluororesin to each other by fusion with the aid of an adhesive polymer, the adhesive polymer being a polymerization product A prepared by copolymerizing a radical-polymerizable olefin polymer B, which is obtained by reacting an olefin polymer (a) having at least one functional group in one molecule thereof with a radical-polymerizable monomer (b) having a functional group which can react with the functional group contained in the olefin polymer (a), with a monomer (c) which comprises as essential components alkyl acrylate, alkyl methacrylate and/or a fluorine-containing unsaturated monomer and is copolymerizable with the radical-polymerizable olefin polymer B, the polymerization product A comprising from 10 to 90 wt. % of the monomer (c).Type: GrantFiled: October 24, 1991Date of Patent: August 10, 1993Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Takahiro Ozu, Keizo Abe, Kazuhide Hayama, Kazuyuki Hata
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Patent number: 5180766Abstract: A resin composition for primer use is described, which contains a copolymer of (I) a radical-polymerizable olefin resin and (c) a monomer copolymerizable with said olefin resin (I) and containing an alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer as essential ingredients, said radical-polymerizable olefin resin (I) being a product of the reaction of (a) an olefin resin having at least one functional group per molecule with (b) a radical-polymerizable monomer having a functional group reactive to the functional group contained in said olefin resin (a).A primer composition is also described.Type: GrantFiled: April 19, 1991Date of Patent: January 19, 1993Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Kazuhide Hayama, Kazuyuki Hata, Katsuhiko Yamada, Keizo Abe, Takahiro Ozu
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Patent number: 5174848Abstract: A process for producing a propylene resin formed article with a hard coat is disclosed, comprising forming an ultraviolet-curing acrylic resin coating film on the surface of a propylene resin film or sheet, subjecting the film or sheet with the coating film to thermoforming, and irradiating the coating film to ultraviolet rays to cure said ultraviolet-curing resin, wherein said propylene resin film or sheet is composed of at least a propylene resin surface layer containing substantially no nucleating agent on which surface is coated said acrylic resin film and a thermoplastic resin base layer containing a nucleating agent which is laminated on the other side of said propylene resin surface layer prior to the thermoforming. The hard coat on the propylene resin formed article has high gloss.Type: GrantFiled: April 1, 1991Date of Patent: December 29, 1992Assignee: Mitsubishi Petrochemical Co., Ltd.Inventors: Takao Yazaki, Masataka Noro, Takashi Matsui, Kazuhide Hayama, Noritaka Hosokawa