Patents by Inventor Masataka Ooka
Masataka Ooka 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: 7417090Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.Type: GrantFiled: November 1, 2006Date of Patent: August 26, 2008Assignee: Dainippon Ink & Chemicals, Inc.Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka
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Publication number: 20070049691Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.Type: ApplicationFiled: November 1, 2006Publication date: March 1, 2007Applicant: DAINIPPON INK AND CHEMICALS, INC.Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka
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Patent number: 7166673Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.Type: GrantFiled: October 19, 2001Date of Patent: January 23, 2007Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka
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Patent number: 6958366Abstract: An antifouling coating composition having an excellent coating film strength and also has markedly superior antifouling properties, and a novel resin which is useful as a matrix resin for the composition are provided. The antifouling coating composition comprises a vinyl polymer (A) having, as a repeating unit, a structural unit (a) represented by the following formula (1): (in the formula (1), X1 and X2 each independently represents an ester bond or a carbonyl group; R1 represents an ethylene structure which forms a covalent bond with the carbonyl carbon atom and X1 in the formula (1) at the same or adjacent carbon atom; R2 represents a gem-alkylene group, a vic-alkylene group, an arylmethylidene group or an arylethylene group; and R3 and R4 represent an alkyl group or an aryl group, or a hydrocarbon group having a carbonyl group, an ether bond or an ester bond) and an antifouling agent (B).Type: GrantFiled: April 12, 2001Date of Patent: October 25, 2005Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Koji Tokunaga, Masataka Ooka, Hiroo Tanaka, Asako Oda, Hiroshi Matsuzawa, Makoto Tsuboi, Eiichi Yoshikawa, Yasuhiro Yuki, Satoshi Hiyoshi
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Publication number: 20030118544Abstract: An antifouling coating composition having an excellent coating film strength and also has markedly superior antifouling properties, and a novel resin which is useful as a matrix resin for the composition are provided.Type: ApplicationFiled: October 11, 2002Publication date: June 26, 2003Inventors: Koji Tokunaga, Masataka Ooka, Hiroo Tanaka, Asako Oda, Hiroshi Matsuzawa, Makoto Tsuboi, Eiichi Yoshikawa, Yasuhiro Yuki, Satoshi Hiyoshi
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Publication number: 20030069353Abstract: A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.Type: ApplicationFiled: June 20, 2002Publication date: April 10, 2003Inventors: Hajime Suganuma, Masaki Watanabe, Masataka Ooka
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Patent number: 6333368Abstract: A curable composition useful in water-based paints comprises a water-based product obtained by dispersing or dissolving in water a vinyl polymer (II) containing tertiary amino and/or acidic groups which have been neutralized by an acidic or basic compound, an epoxy and hydrolysable silyl groups-containing compound (B), and a hydrolysable silyl and/or silanol groups-containing compound (F).Type: GrantFiled: September 8, 1999Date of Patent: December 25, 2001Assignee: Dainippon Ink & Chemicals, Inc.Inventors: Nobuo Harui, Masataka Ooka
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Patent number: 6268440Abstract: A water-base resin has both excellent storage stability and excellent curability at room temperature, the water base resin being obtained by mixing a composite resin (C) and a polysiloxane (D), bringing about a condensation reaction partially between them if necessary, and thereafter dispersing or dissolving the resulting mixture or partially condensed product into a water-base medium, wherein the composite resin (C) comprises a polysiloxane segment (A) and a polymer segment (B), the polysiloxane segment (A) having at least one silicon atom selected from the group consisting of a silicon atom bearing at least one organic group having a total carbon number of at least 3 together with at least one hydrolyzable group and/or at least one hydroxyl group, a silicon atom bearing one hydrolyzable group or one hydroxyl group together with two groups selected from the group consisting of methyl groups and ethyl groups, and a silicon atom bearing at least one triorganosiloxy group together with at least one hydrolyzableType: GrantFiled: January 29, 1999Date of Patent: July 31, 2001Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Shin-ichi Kudo, Hiroshi Kinoshita, Masataka Ooka
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Patent number: 6072000Abstract: The present invention proposes highly practical curable resin compositions for use in water based paints, which contain no, or much less organic solvent when compared with current organic solvent based paints, and which produce painted surfaces which have excellent curability and weather resistant properties, as well as excellent resistance to solvents, chemicals and water. These curable resin compositions include a compound combining both epoxy and hydrolyzable silyl groups, and a water based product obtained by dispersing or dissolving in water, a tertiary amino vinyl polymer, a vinyl polymer containing both tertiary amino and acidic groups, or an acidic vinyl polymer, which has been either partially or completely neutralized by an acidic or basic compound.Type: GrantFiled: June 10, 1996Date of Patent: June 6, 2000Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Nobuo Harui, Masataka Ooka
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Patent number: 5985980Abstract: A curable resin composition of use in water-based paints comprises a water-based product obtained by dispersing or dissolving in water a vinyl polymer (II) containing tertiary amino groups, acidic groups, or both tertiary amino and acidic groups which has been either partially or completely neutralized by an acidic or basic compound, an epoxy and hydrolyzable silyl groups-containing compound (B), and a composition further containing a hydrolyzable silyl and/or silanol groups-containing compound (F).Type: GrantFiled: August 8, 1995Date of Patent: November 16, 1999Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Nobuo Harui, Masataka Ooka
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Patent number: 5840806Abstract: Disclosed is a curable resin composition which can be applied for various uses such as top-coating compositions for cars, coating compositions for exterior walls of constructions, heat-resistant coating compositions, adhesives, ink compositions, compositions to be infiltrated into fibers and paper, and surface-treating compositions. The composition comprises (A) a resin obtained by condensation of a polymer having both a hydrolyzable silyl group and a particular functional group except such a hydrolyzable silyl group, and a particular polysiloxane, and (B) a compound capable of reacting with the functional group existing in the resin (A).Type: GrantFiled: January 7, 1997Date of Patent: November 24, 1998Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Shigeru Komazaki, Shinichi Kudo, Masataka Ooka
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Patent number: 5576406Abstract: It is an objective of the present invention to provide, in particular, a curable composition of an extremely high utility which yields a cured film having excellent acid resistance and the like. The curable composition of the present invention is used mainly for paints, adhesives, or sealing agents. The curable composition is based on crosslinking reaction between a specific substituted methyl ester group exemplified by an alkoxymethyl ester group and other functional groups, i.e., an epoxy group and an active hydrogen-containing group such as a hydroxyl group, a carbamate group, and an acetoacetoxy group.Type: GrantFiled: December 15, 1994Date of Patent: November 19, 1996Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Kazuo Yamamura, Masataka Ooka
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Patent number: 5393823Abstract: A coating resin composition comprising (I) a vinyl polymer obtained by polymerizing (A) 1 to 100% by weight of a vinyl monomer having at least one unsaturated double bond and at least one siloxy group per molecule and (B) 99 to 0% by weight of a copolymerizable vinyl monomer other than (A) in the presence of a radical generator and (II) a curing agent having reactivity with the hydroxyl groups generated from the polymer (I), and optionally (III) a siloxy group-dissociating catalyst.Type: GrantFiled: October 18, 1993Date of Patent: February 28, 1995Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hidetoshi Konno, Masataka Ooka, Hirofumi Takeda, Hiroshi Sakamoto
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Patent number: 5320769Abstract: A magnetic paint and objects coated with same are disclosed, where the magnetic paint is characterized by comprising, as its essential components, a block copolymer and magnetic powder, said block copolymer having polyurethane and vinyl polymer segments. The magnetic paint of the present invention exhibits good dispersability of the magnetic powder, and good surface smoothness, durability, and wear resistance of the magnetic recording medium. Objects which may be appropriately coated with the magnetic paint of the present invention include high-quality magnetic recording media, such as magnetic tapes, magnetic cards, prepaid cards, magnetic disks and so on.Type: GrantFiled: April 3, 1992Date of Patent: June 14, 1994Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Hiroshi Kinoshita, Yasutaka Nakama, Goro Iwamura, Shigeru Komazaki, Masataka Ooka
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Patent number: 5241002Abstract: The methacrylic ester polymers produced according to this invention are uniquely distinguished from the radically prepared polymers of similar composition by the fact that both polymers produced: by anionic living polymerization and by deactivating the active terminals of anionic living polymers; contain acetal and/or ketal groups as the blocked hydroxyl groups and have narrow molecular weight distribution. Hydroxyl group-containing methacrylic acid ester polymers are produced by hydrolysis of the above-mentioned polymers. The anionic living polymers are produced in high yields by anionically polymerizing methacrylic acid esters containing an acetal or ketal group in the presence of initiators such as alkaline metal alkoxides. The polymers of the present invention can be used in various fields of applications such as coatings and adhesives. The polymers of the present invention yield curable high solids compositions.Type: GrantFiled: March 4, 1992Date of Patent: August 31, 1993Assignee: Dainippon Ink And Chemicals, Ltd.Inventors: Yuji Ohashi, Masataka Ooka
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Patent number: 5194547Abstract: The methacrylic ester polymers produced according to this invention are uniquely distinguished from the radically prepared polymers of similar composition by the fact that both polymers produced: by anionic living polymerization and by deactivating the active terminals of anionic living polymers; contain acetal and/or ketal groups as the blocked hydroxyl groups and have narrow molecular weight distribution. Hydroxyl group-containing methacrylic acid ester polymers are produced by hydrolysis of the above-mentioned polymers. The anionic living polymers are produced in high yields by anionically polymerizing methacrylic acid esters containing an acetal or ketal group in the presence of initiators such as alkaline metal alkoxides. The polymers of the present invention can be used in various fields of applications such as coatings and adhesives. The polymers of the present invention yield curable high solids compositions.Type: GrantFiled: June 7, 1991Date of Patent: March 16, 1993Assignee: Dainippon Ink & Chemicals, Inc.Inventors: Yuji Ohashi, Masataka Ooka
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Patent number: 4886862Abstract: An ordinary temperature-curable resin composition comprising (A) a hydrolyzable silyl group-containing fluoroolefin copolymer obtained by polymerizing a monomeric mixture comprising a fluoroolefin as an essential component in the presence of a hydrolyzable silyl group-containing compound, (B) a curing catalyst, and (C) an organic solvent.Type: GrantFiled: December 12, 1988Date of Patent: December 12, 1989Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Shinichi Kuwamura, Masataka Ooka
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Patent number: 4818790Abstract: A room temperature-curable resin composition consisting essentially of (A) a vinyl polymer containing a basic nitrogen atom and (B) a compound containing both an epoxy group and a hydrolyzable silyl group in each molecule. The composition is especially useful as a paint, an adhesive, or a sealing agent.Type: GrantFiled: August 28, 1985Date of Patent: April 4, 1989Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Masataka Ooka, Shinichi Kuwamura, Hiroshi Ozawa, Hiroshi Ozawa
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Patent number: 4696975Abstract: A resin composition curable at room temperature and useful, for example, as a coating agent, an adhesive and a sealing agent. The composition consists essentially of (A) a polymer having both carboxyl and tertiary amino groups, the polymer being the reaction product of (a-1) a vinyl polymer having both carboxylic anhydride and carboxyl groups with (a-2) a compound having both at least one group containing an active hydrogen capable of reacting with the carboxylic anhydride group in the polymer (a-1) and at least one tertiary amino group, and (B) a polyepoxy compound.Type: GrantFiled: August 16, 1985Date of Patent: September 29, 1987Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Masataka Ooka, Yaeko Okuda, Motoyasu Kunugiza
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Patent number: 4670521Abstract: A process for the production of a vinyl polymer containing a tertiary amino group, which comprises subjecting (a-1) a vinyl polymer containing a carboxylic anhydride group obtained by copolymerizing maleic anhydride, itaconic anhydride or mixtures thereof with at least one copolymerizable monomer and (a-2) a compound containing both one primary amino group and one tertiary amino group for each molecule to a ring-opening reaction, and dehydrocyclizing the adduct to form an imide ring containing polymer. A curable resin composition comprising the resulting polymer and a polyepoxy compound as essential ingredients.Type: GrantFiled: March 6, 1985Date of Patent: June 2, 1987Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Masataka Ooka, Shinichi Kawamura, Yoichi Murakami