Patents Assigned to Natoco Co., Ltd.
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Patent number: 11118087Abstract: Provided is a film-forming resin composition for protecting an article that an organic polymer is exposed, including a polyurethane resin (A) having a hydroxyl group, a (meth)acrylic resin (B) having a hydroxyl group, and a polyfunctional isocyanate (C), in which the composition has a cross-linking density n of 1.0×10?4 to 5.0×10?3 mol/cm3, which is determined according to Mathematical Formula (1) n=E?min/(3RT). Here, E?min represents a minimum value E?min of storage elastic modulus of a cured film obtained by curing the resin composition at 80° C. for 16 hours in a case where the cured film is subjected to viscoelasticity measurement at a frequency of 1.0 Hz and a temperature range of ?40° C. to 160° C., T represents an absolute temperature at the minimum value E?min, and R represents a gas constant.Type: GrantFiled: February 13, 2019Date of Patent: September 14, 2021Assignee: NATOCO CO., LTD.Inventors: Susumu Ono, Takashi Tanaka, Takafumi Yoshino
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Patent number: 10876014Abstract: Provided are a coating composition including a (meth)acrylic resin (A) containing a structural unit (a1) having an acetoacetoxy group and a structural unit (a2) having an amide group, a curing agent (B), and a surfactant (C); a coating material including a first coating material precursor composition containing the acrylic resin (A), but not containing the curing agent (B), and a second coating material precursor composition containing the curing agent (B), but not containing the (meth)acrylic resin (A), in which the first coating material precursor composition and/or the second coating material precursor composition contains the surfactant (C); a cured film made from such a coating composition or coating material; an article having a cured film; and a method for producing an article having a cured film of such a coating composition or coating material.Type: GrantFiled: September 22, 2017Date of Patent: December 29, 2020Assignee: NATOCO CO., LTD.Inventors: Fumiko Kanehara, Yoshinori Eto
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Patent number: 9447294Abstract: Provided is an active energy ray-curable composition that is capable of improving adhesiveness of a cured product and of suppressing detachment or peeling of the cured product as well as a cured product and use thereof. The active energy ray-curable composition contains, as active ingredients, an oxetane alcohol represented by the following structural formula (1) or (2), a silane coupling agent, and a photoacid-generating agent. A silicon component in the silane coupling agent is contained in an amount of preferably 1 to 21% by mass, in terms of silica (SiO2), in the active energy ray-curable composition. In the formula, p is an integer of 1 to 10.Type: GrantFiled: April 26, 2013Date of Patent: September 20, 2016Assignee: NATOCO CO., LTD.Inventors: Akira Nakagawa, Eisuke Ninomiya
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Patent number: 8507632Abstract: An actinic energy ray curable composition useful as a paint or coating agent, especially for products where scratch resistance is desired, includes a particular composition that includes a urethane (meth)acrylate obtained by reacting to an organic isocyanate having a plurality of isocyanate groups in one molecule with a polycaprolactone-modified alkyl (meth)acrylate and a long-chain alcohol.Type: GrantFiled: September 11, 2006Date of Patent: August 13, 2013Assignee: Natoco Co., Ltd.Inventors: Masahiro Hara, Tomihisa Ohno, Susumu Kawakami
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Publication number: 20110173807Abstract: It is provided a dispersion for positioning and adhering fine particles at predetermined positions on a substrate upon heating by ink jet printing. The dispersion comprises spacers, a solvent and an adhesive additive. The adhesive additive has an average molecular weight (Mw) of 3600 or lower and a property of forming a polymer upon heating.Type: ApplicationFiled: September 25, 2009Publication date: July 21, 2011Applicant: NATOCO CO., LTD.Inventors: Masahiro Kuzawa, Katsumi Hara, Michio Doi, Hideaki Kato
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Patent number: 7939608Abstract: In a cured product having a thickness of 60 ?m obtained from an actinic energy ray-curable composition of the present invention, when a scratch mark is made at a vertical load of 235 mN using a diamond indenter with a tip diameter of 15 ?m, the scratch mark is repaired by a self-repairing ability under an atmosphere at 25° C. and at a relative humidity of 50%. Therefore, the actinic energy ray-curable composition is useful as coating agents or paints for products where scratch resistance is required.Type: GrantFiled: September 11, 2006Date of Patent: May 10, 2011Assignee: Natoco Co., Ltd.Inventors: Masahiro Hara, Tomihisa Ohno, Susumu Kawakami
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Publication number: 20090018271Abstract: A coating composition including of a (meth)acrylic resin (A) containing a hydroxyl group and a polyisocyanate compound (B) containing a plurality of isocyanate groups. The (meth)acrylic resin (A) is obtained by copolymerizing a monomer mixture essentially containing a polycaprolactone-modified hydroxyalkyl (meth)acrylate and a hydroxyl group-containing (meth)acrylate. The coating composition is characterized in that the hydroxyl group in the hydroxyl group-containing (meth)acrylate is a primary hydroxyl group and the hydroxyl number of the (meth)acrylic resin (A) is 125-145.Type: ApplicationFiled: December 8, 2004Publication date: January 15, 2009Applicant: Natoco Co., Ltd.Inventors: Tomihisa Ohno, Masahiro Hara, Kozo Fujii, Yoshihiro Kojima, Susumu Kawakami, Yoshikazu Fushimi
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Publication number: 20080125550Abstract: In a cured product having a thickness of 60 ?m obtained from an actinic energy ray-curable composition of the present invention, when a scratch mark is made at a vertical load of 235 mN using a diamond indenter with a tip diameter of 15 ?m, the scratch mark is repaired by a self-repairing ability under an atmosphere at 25° C. and at a relative humidity of 50%. Therefore, the actinic energy ray-curable composition is useful as coating agents or paints for products where scratch resistance is required.Type: ApplicationFiled: October 30, 2007Publication date: May 29, 2008Applicant: NATOCO CO., LTD.Inventors: Masahiro Hara, Tomihisa Ohno, Susumu Kawakami
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Publication number: 20070082147Abstract: To provide a heat-resistant lubricity imparting coating agent that can form a heat-resistant lubricous protective layer with good heat resistance and lubricity which will hardly cause chips due to contact with the thermal head, and which will hardly allow the chips to stick to and be fusion-bonded to the head, and a thermal transfer recording medium having the heat-resistant lubricous protective layer. The heat-resistant lubricity imparting coating agent of the invention contains a polydimethylsiloxane copolymer which includes a long chain alkyl group having a carbon number of 12 or more.Type: ApplicationFiled: January 24, 2005Publication date: April 12, 2007Applicant: NATOCO CO., LTD.Inventors: Shigekazu Teranishi, Norio Yokoyama
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Publication number: 20070049653Abstract: In a cured product having a thickness of 60 ?m obtained from an actinic energy ray-curable composition of the present invention, when a scratch mark is made at a vertical load of 235 mN using a diamond indenter with a tip diameter of 15 ?m, the scratch mark is repaired by a self-repairing ability under an atmosphere at 25° C. and at a relative humidity of 50%. Therefore, the actinic energy ray-curable composition is useful as coating agents or paints for products where scratch resistance is required.Type: ApplicationFiled: September 11, 2006Publication date: March 1, 2007Applicant: NATOCO CO., LTD.Inventors: Masahiro Hara, Tomihisa Ohno, Susumu Kawakami
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Publication number: 20070049654Abstract: In a cured product having a thickness of 60 ?m obtained from an actinic energy ray-curable composition of the present invention, when a scratch mark is made at a vertical load of 235 mN using a diamond indenter with a tip diameter of 15 ?m, the scratch mark is repaired by a self-repairing ability under an atmosphere at 25° C. and at a relative humidity of 50%. Therefore, the actinic energy ray-curable composition is useful as coating agents or paints for products where scratch resistance is required.Type: ApplicationFiled: September 11, 2006Publication date: March 1, 2007Applicant: NATOCO CO., LTD.Inventors: Masahiro Hara, Tomihisa Ohno, Susumu Kawakami
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Publication number: 20070004817Abstract: In a cured product having a thickness of 60 ?m obtained from an actinic energy ray-curable composition of the present invention, when a scratch mark is made at a vertical load of 235 mN using a diamond indenter with a tip diameter of 15 ?m, the scratch mark is repaired by a self-repairing ability under an atmosphere at 25° C. and at a relative humidity of 50%. Therefore, the actinic energy ray-curable composition is useful as coating agents or paints for products where scratch resistance is required.Type: ApplicationFiled: September 11, 2006Publication date: January 4, 2007Applicant: NATOCO CO., LTD.Inventors: Masahiro Hara, Tomihisa Ohno, Susumu Kawakami
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Patent number: 6825243Abstract: Provided are an active energy ray-curable urethane (meth)acrylate and an active energy ray-curable composition for paints and coating agents having abrasion resistance and lubricity, and uses thereof. The curable urethane (meth)acrylate has a long chain alkyl group having 13 to 25 carbon atoms and an active energy ray-curable functional group and is modified with polycaprolactone. The urethane (meth)acrylate is obtainable by reacting an organic isocyanate having three or more isocyanate groups in one molecule, a long chain alkyl alcohol, and a polycaprolactone-modified hydroxyethyl (meth)acrylate. On the other hand, the active energy ray-curable composition contains the urethane (meth)acrylate.Type: GrantFiled: August 28, 2002Date of Patent: November 30, 2004Assignee: Natoco Co., Ltd.Inventors: Tomihisa Ohno, Masahiro Hara, Shigekazu Teranishi, Susumu Kawakami
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Patent number: 6117500Abstract: A shading spacer for liquid crystal consisting of a cross-linked polymer particles containing a dyestuff which is fixed in said polymer particles by taking a dyestuff compound having a silyl group which can be hydrolyzed in said polymer particles having a silyl group which can be hydrolyzed when said polymer particles are cross-linked, is provided in the present invention. In said shading spacer, removal of dyestuff from said polymer particles is prevented.Type: GrantFiled: May 20, 1998Date of Patent: September 12, 2000Assignee: Natoco Co., Ltd.Inventors: Yoshihiko Yamakado, Takeshi Shiraishi, Hitomi Ozeki, Masahito Sakai