Patents Examined by Ha S Nguyen
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Patent number: 11319436Abstract: A thermoplastic polyester resin composition has an excellent retention stability and is capable of producing a molded article excellent in mechanical properties and heat resistance as well as in long-term hydrolysis resistance; and the molded article. The thermoplastic polyester resin includes 100 parts by weight of a thermoplastic polyester resin (A) and 0.1 to 10 parts by weight of a biphenyl aralkyl-type epoxy resin or cyclopentadiene-type epoxy resin (B) of a specific type.Type: GrantFiled: September 4, 2014Date of Patent: May 3, 2022Assignee: Toray Industries, Inc.Inventors: Yusuke Tojo, Kentaro Togawa, Daisuke Sato, Sadanori Kumazawa
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Patent number: 11306177Abstract: The present invention relates to thermoplastic polyurethanes obtainable or obtained by reaction of at least one polyisocyanate composition, at least one chain extender (KV1) of general formula (I) and one further chain extender (KV2) selected from the group consisting of compounds having at least two isocyanate-reactive groups having a molecular weight of <500 g/mol, and at least one polyol composition. The present invention further relates to a production process for such thermoplastic polyurethanes and to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for producing extrusion products, films and molded articles.Type: GrantFiled: February 13, 2018Date of Patent: April 19, 2022Assignee: BASF SEInventors: Nabarun Roy, Fin Lammers, Dirk Kempfert, Elmar Poeselt
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Patent number: 11306228Abstract: The present invention provides bonding systems comprising a formaldehyde-based (urea-/melamine-/phenol-/resorcinol-formaldehyde or other combination) and/or a polymeric isocyanate resin system composition for bonding ligno-cellulosic materials to form panels and/or shaped products, which contain a resin hardener, also referred to as resin catalyst, characterised in that the hardener is activated by heat.Type: GrantFiled: July 26, 2017Date of Patent: April 19, 2022Assignee: Catalytic Systems C.E.D. LTD.Inventors: Karolos Markesinis, Efthalia Markesini, Dimitrios Alexandropoulos, Panagiotis Nakos, Paschalis Tsirogiannis
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Patent number: 11299626Abstract: The invention relates to the use of at least one prepolymer in a composition which includes: a matrix of at least one transparent semi-crystalline polyamide, and optionally at least one additive, for improving the crystallisation kinetics and reducing the warping of the composition while preserving or improving the transparency properties thereof as well as the mechanical properties thereof, in comparison with the same composition without a prepolymer, wherein the composition does not contain a nucleating agent.Type: GrantFiled: September 20, 2016Date of Patent: April 12, 2022Assignee: ARKEMA FRANCEInventors: Yves Deyrail, Mathieu Sabard, Philippe Blondel, René-Paul Eustache
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Patent number: 11299618Abstract: The present invention provides a polyacetal resin composition comprising (A) a polyacetal resin and (B) zinc oxide, wherein the content of oxyalkylene constituent units other than an oxymethylene group in the polyacetal resin (A) is 0.1% by mass or more, and wherein the total surface area of the zinc oxide (B) in the polyacetal resin composition is 0.1 to 40 m2 per 100 g of the polyacetal resin (A); as well as an article molded therefrom.Type: GrantFiled: December 15, 2015Date of Patent: April 12, 2022Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., THAI POLYACETAL CO., LTD.Inventors: Yumi Okui, Daisuke Kobayashi, Akira Ito, Daisuke Sunaga, Yupin Pattamamongkolchai, Sanit Palaharn
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Patent number: 11286330Abstract: The present invention is concerned with a new macromer for use in polymer polyol dispersions, and also with a process for preparing a new macromer of this kind.Type: GrantFiled: August 29, 2017Date of Patent: March 29, 2022Assignee: BASF SEInventors: Dejan Petrovic, Christian Koenig
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Patent number: 11267937Abstract: The invention provides: a dihydroxynaphthalene condensate which suppresses soft particle generation and is suitably usable for a composition excellent in filterability; and a method for producing the dihydroxynaphthalene condensate. In the method for producing a dihydroxynaphthalene condensate, dihydroxynaphthalene to be used has a sulfur element content of 100 ppm or less in terms of mass among constituent elements. The dihydroxynaphthalene and a condensation agent are condensed in presence of an acid or a base to produce the dihydroxynaphthalene condensate.Type: GrantFiled: December 19, 2018Date of Patent: March 8, 2022Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Daisuke Kori, Seiichiro Tachibana, Tsutomu Ogihara, Satoru Kitano, Yukio Abe, Fumihiro Hatakeyama, Taiki Kobayashi
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Patent number: 11267928Abstract: The present invention relates to a process for producing a diblock copolymer comprising the reaction of at least one aromatic polyester having a melting point in the range from 160° C. to 350° C. and at least one polymer diol having a melting point of less than 100° C. at a temperature of greater than 200° C. to obtain a mixture (G-a); and the reaction of the mixture (G-a) with at least one diisocyanate, wherein the diisocyanate is employed in a molar amount of at least 0.9 based on the alcohol groups of the polymer diols. The present invention further relates to diblock copolymers obtained or obtainable according to such a process and to the use of such diblock copolymers for producing extruded, injection molded and pressed articles and also foams, cable sheaths, hoses, profiles, drive belts, fibers, nonwovens, films, moldings, plugs, housings, damping elements for the electricals industry, automotive industry, mechanical engineering, 3-D printing, medicine and consumer goods.Type: GrantFiled: February 22, 2017Date of Patent: March 8, 2022Assignee: BASF SEInventors: Frank Prissok, Elmar Poeselt, Dirk Kempfert, Florian Puch, Martina Schoemer
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Patent number: 11248145Abstract: An adhesive formulation comprising i) an adduct of an epoxy resin and an elastomer, ii) a phenoxy resin; iii) a core/shell polymer; iv) a curing agent which provides a structural adhesive with improved low temperature impact strength particularly useful for bonding metal especially in the automotive industry.Type: GrantFiled: April 7, 2009Date of Patent: February 15, 2022Assignee: Zephyros, Inc.Inventor: Michael Czaplicki
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Patent number: 11242430Abstract: A crosslinking composition includes a compound having at least two functional groups that are each independently represented by Chemical Structure (I): X is an oxygen, sulfur, or nitrogen; R1 is an alkyl group, an aryl group, or an alkylaryl group; R2, R3, and R4 are each independently an alkyl group, an aryl group, an alkylaryl group, or a hydrogen; R5 is an alkyl group, an aryl group, an alkylaryl group, or a hydrogen; z is 0 when X is oxygen or sulfur and z is 1 when X is nitrogen; and when a double bond is formed between a carbon atom bonded to R3 and an adjacent nitrogen, m is 0, and when a single bond is formed between the carbon atom bonded to R3 and the adjacent nitrogen, m is 1.Type: GrantFiled: October 17, 2019Date of Patent: February 8, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Melissa Joan MacDonald, Qi Zheng, Abdulrahman Dawoud Ibrahim, Se Ryeon Lee, Tsukasa Mizuhara, Christophe René Gaston Grenier, Venkatachalam Eswarakrishnan
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Patent number: 11242427Abstract: An adhesive composition is disclosed. The adhesive composition comprises an epoxy-containing component; rubber particles having a core-shell structure; and a curing component comprising a mixture of an amine-containing compound substantially free of hydroxyl functional groups and a polymeric phenol-containing compound, wherein the amine-containing compound comprises primary and/or secondary amino groups, and wherein the curing component chemically reacts with the epoxy-containing component upon activation from an external energy source. Also disclosed are methods of preparing the adhesive composition and for forming a bonded substrate with the adhesive composition. Further disclosed are curing components for an adhesive composition and methods of making the curing components.Type: GrantFiled: October 20, 2015Date of Patent: February 8, 2022Assignee: PPG Industries Ohio, Inc.Inventors: Masayuki Nakajima, Hongying Zhou, Tien-Chieh Chao, Shanti Swarup
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Patent number: 11242476Abstract: The present invention provides an epoxy resin adhesive that exhibits low shrinkage and excellent adhesiveness. The epoxy resin adhesive includes (A) an epoxy resin, (B) a curing agent, and (C) a particulate polyolefin-based resin having a volume average particle size of 1 to 25 ?m, wherein the particulate polyolefin-based resin is spherical, and wherein the particulate polyolefin-based resin is present in an amount of 1 to 50 parts by mass per 100 parts by mass of the epoxy resin.Type: GrantFiled: December 2, 2014Date of Patent: February 8, 2022Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Masafumi Okamoto, Norihiro Sugihara, Taiji Matsukawa
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Patent number: 11236195Abstract: A corrosion-indicating material and methods of producing and using the corrosion-indicating material are provided. The corrosion-indicating material comprises a cured product of reacting a bisphenol A diglycidyl ether epoxy (DGEBA) resin with a curing agent, the curing agent comprising a 1,10-phenanthroline derivative having formula (I): where: R1 and R2 are independently selected from —NH2; —NH(CH2)aNH2, where a is 1, 2, or 3; —OC(?O)(CH2)bNH2, where b is 1, 2, or 3; and —H; R3 and R4 are either: non-joined monovalent radicals each independently chosen from —H, —NH2, and (C1-C20)heterohydrocarbyls comprising at least one primary amine or at least one secondary amine; or joined as a single divalent radical, the single divalent radical being a (C1-C40)heterohydrocarbyl comprising at least one primary amine or at least one secondary amine; and at least one of R1, R2, R3, and R4 is not —H.Type: GrantFiled: February 24, 2020Date of Patent: February 1, 2022Assignee: Saudi Arabian Oil CompanyInventors: Haleema Alamri, Aziz Fihri, Mohamed Bouhrara, Enrico Bovero, Bashayer Mishari
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Patent number: 11225546Abstract: A process for preparing an isocyanate product includes providing a phosgene inlet stream and an amine in solvent inlet stream to a phosgenation mixer, the amine in-solvent inlet stream including one or more amines and one or more inert solvents, and during steady state operation compensating for a fouling pressure drop increase by decreasing a pressure drop in the phosgenation mixer over a time period divided into at least a first period of time T1 and a second period of time T2 that is subsequent to the first period of time T1. During the second period of time T2 an amine concentration of the one or more amines in the amine-in-solvent stream is higher than during the first period of time T1, and during the second period of time T2 a phosgene-to-amine ratio value in the phosgenation mixer is higher than during the first period of time T1.Type: GrantFiled: February 28, 2018Date of Patent: January 18, 2022Assignee: Dow Global Technologies LLCInventors: Artur Klinger, Paul A. Gillis, Irfan Khan
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Patent number: 11225588Abstract: A process for preparing a curing agent for epoxy resins, in which an amine mixture including at least one parent amine of the formula (I) and at least one alkylated amine of the formula (II) is reacted or adducted with at least one glycidyl ether of the formula (III). The amine mixture is especially a reaction mixture from the partial alkylation of the amine of the formula (I). The process described enables, with low energy expenditure and high space-time yield, curing agents of low odor, low toxicity, low viscosity and high reactivity for epoxy resins and epoxy resin products that cure rapidly at ambient temperatures and especially also under cold conditions and at the same time enable high-quality coatings having an even, shiny surface.Type: GrantFiled: March 13, 2018Date of Patent: January 18, 2022Assignee: SIKA TECHNOLOGY AGInventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
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Patent number: 11214716Abstract: The present invention relates to a phenol-based resin adhesive from lignin pyrolysis, comprising a polymer of phenol and formaldehyde from lignin pyrolysis, wherein the phenol from lignin pyrolysis comprises at least two phenols from lignin pyrolysis or at least two lignin-modified phenols from lignin pyrolysis. A repeat unit of the polymer of phenol and formaldehyde from lignin pyrolysis comprises at least two phenol units from lignin pyrolysis or at least two lignin-modified phenol units from lignin pyrolysis. According to the phenol-based resin adhesive from lignin pyrolysis in the present invention, by-products during the pyrolysis of lignin for power generation are used as raw materials, so it is environment-friendly and economical.Type: GrantFiled: March 8, 2021Date of Patent: January 4, 2022Assignee: JIANGNAN UNIVERSITYInventors: Gang Shi, Ying Li, Hongyan Miao, Caihua Ni
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Patent number: 11149165Abstract: Embodiments provide ice adhesion mitigating surface coatings and methods for generating the same. Embodiments may provide anti-icing coating with at least one monomeric species exhibiting molecular flexibility. The molecular flexibility in the monomeric species may be imparted through an aliphatic or heteroaliphatic chain that may exist as a portion of the monomer backbone, as a pendant group, or as both the portion of the monomer backbone and the pendant group. In various embodiments epoxy coatings including an epoxy resin and an amine-terminated hardener may be generated. At least a portion of the amine-terminated hardener may include at least a monomeric species that exhibits molecular flexibility arising from an aliphatic chain or heteroaliphatic chain that may be within the polymer backbone and/or may persist as a pendant group.Type: GrantFiled: August 12, 2019Date of Patent: October 19, 2021Assignee: United States of America as represented by the Administrator of NASAInventors: Christopher J. Wohl, Jr., Joseph G. Smith, Jr.
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Patent number: 11149109Abstract: An epoxy resin composition that comprises an epoxy resin and a curing agent, the epoxy resin comprising an epoxy compound that has, in one molecule, two or more structural units represented by the following Formula (I) and two or more epoxy groups, and the curing agent comprising a compound having two or more amino groups that are directly bound to an aromatic ring.Type: GrantFiled: June 15, 2017Date of Patent: October 19, 2021Assignee: SHOWA DENKO MATERIALS CO., LTD.Inventors: Yuka Yoshida, Kazumasa Fukuda, Yoshitaka Takezawa
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Patent number: 11130836Abstract: Embodiments of the present invention disclose a method for limiting peak exotherm temperatures in epoxy systems comprising the step of: combining an amine hardener, an epoxy and a diluent to form an epoxy system, wherein the diluent is selected from the group consisting of: ethylene carbonate, propylene carbonate, butylene carbonate, delta-valerolactam, delta-valerolactone, gamma valerolactone, butyrolactam, beta butyrolactone, gamma butyrolactone, and combinations thereof.Type: GrantFiled: November 30, 2016Date of Patent: September 28, 2021Assignee: HUNTSMAN Petrochemical LLCInventor: Bruce L Burton
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Patent number: 11125916Abstract: The present invention relates to silicone hydrogels exhibiting desired combinations of physical and mechanical properties, formed from a reactive monomer mixture comprising at least one N-alkyl methacrylamide, and at least one silicone-containing component. These silicone hydrogels may also contain hydrophilic components, crosslinking agents and toughening monomers. These silicone hydrogels are useful in preparing biomedical devices, ophthalmic lenses, and contact lenses.Type: GrantFiled: May 31, 2017Date of Patent: September 21, 2021Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Azaam Alli, Dola Sinha