From Carboxylic Acid Monomer Patents (Class 526/317.1)
  • Patent number: 11066615
    Abstract: The invention relates to specific copolymers obtainable by co-polymerizing at least the following monomers: at least one bicyclic (meth)acrylate ester at least one lower-alkyl (meth)acrylate optionally, and preferably, at least one aromatic vinyl monomer; and optionally other ethylenically unsaturated monomers, whereby the copolymer has a weight averaged molecular weight of from 100,000 to 10,000,000 D, determined using GPC-MALS techniques for a solution in THF at 40° C., as well as to the way to synthesize such copolymers and the use of such polymers to modify the rheology of a liquid in which they are soluble.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: July 20, 2021
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: John Socrates Thomaides, John M. Morales, Qiwei He, Philip Nigel Threlfall-Holmes, Damien Christian Vadillo, Michael Timothy Philbin
  • Patent number: 11053335
    Abstract: Novel methods and materials particularly useful for ophthalmic applications and to methods for making and using the same are disclosed herein. More particularly, relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and implanting IOLs made therefrom are disclosed.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: July 6, 2021
    Assignee: KEY MEDICAL TECHNOLOGIES, INC.
    Inventor: Khalid Mentak
  • Patent number: 11028334
    Abstract: A gradient copolymer comprises or consists of n polymer components. The n polymer components each independently represents an addition polymer of a monomer of the formula (I), and/or a mixture thereof, or the n polymer components each independently comprises or consists essential of one or more structural units represented by the formula (I-1), The symbol n represents an integer within the closed interval [5, ?]. The average side chain carbon number of the i-th polymer component as determined according to the nuclear magnetic resonance method is expressed as Xi, with the symbol i representing an arbitrary integer from 1 to n, the relationship X1<X2< . . . <Xn?1<Xn holds.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: June 8, 2021
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
    Inventors: Yao Zhang, Qinghua Duan, Kecheng Wei, Yinong Liu, Hongwei Sun
  • Patent number: 11020725
    Abstract: A superabsorbent polymer according to the present invention has excellent initial absorption properties, and thus it may be used in sanitary materials such as diapers, etc., thereby exhibiting excellent performances.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: June 1, 2021
    Inventors: Jun Kyu Kim, Hyung Ki Yoon, Dae Woo Nam, Bo Hyun Seong, Yeon Woo Hong, Seong Beom Heo, Seon Jung Jung, Ji Yoon Jeong, Tae Hwan Jang, Su Jin Kim
  • Patent number: 10981829
    Abstract: A block copolymer for use as a dispersant for mineral binder compositions, containing an alkali activating agent. The block copolymer includes at least one first block A and at least one second block B, the first block A containing a monomeric unit M1 and the second block B containing a monomeric unit M2. A proportion of monomeric units M2, if any, in the first block A is less than 25 mol %, in particular less than or equal to 10 mol %, relative to all the monomeric units M1 in the first block A, and a proportion of monomeric units M1, if any, in the second block B is less than 25 mol %, in particular less than or equal to 10 mol %, relative to all the monomeric units M2 in the second block B.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: April 20, 2021
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Jürg Weidmann, Lukas Frunz, Jörg Zimmermann, Patrick Juilland
  • Patent number: 10793656
    Abstract: The invention relates to a specific copolymer obtainable by co-polymerizing at least the following monomers: —at least one bicyclic (meth)acrylate ester —at least one C8-C24-alkyl (meth)acrylate —optionally, and preferably, at least one aromatic vinyl monomer; and —optionally other ethylenically unsaturated monomers, whereby the copolymer has a weight averaged molecular weight from 400,000 to 50,000,000 Dalton, as well as to the way to synthesize them and the use of such polymers to modify the rheology of a liquid in which they are soluble.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 6, 2020
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: John Socrates Thomaides, John M. Morales, Qiwei He, Philip Nigel Threlfall-Holmes, Damien Christian Vadillo, Michael Timothy Philbin
  • Patent number: 10640588
    Abstract: Disclosed are a polyacrylate (salt) and a polyacrylate (salt) water-absorbent resin containing a tracer which can be verified back to the manufacturing process of the water-absorbent resin when dealing with various problems with the water-absorbent resin which can occur from the manufacturing process of the water-resistant resin, during the use thereof by a consumer, up until the disposal thereof. The disclosed polyacrylate (salt) and the polyacrylate (salt) water-absorbent resin have a carbon stable isotope ratio (?13C) of at least ?20‰ when measured by accelerator mass spectrometry.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: May 5, 2020
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Satoshi Matsumoto, Yuki Kabeya, Kunihiko Ishizaki, Shigeru Sakamoto
  • Patent number: 10640593
    Abstract: A polyacrylic acid (salt), or a polyacrylic acid (salt)-based water-absorbing resin, contains a tracer for detecting various troubles in the water-absorbing resin during the period from the production of the water-absorbing resin to the use and discard thereof by a consumer. The polyacrylic acid (salt)-based water-absorbing resin has a stable carbon isotope ratio, as determined by accelerator mass spectrometry, of less than ?20‰ and a radioactive carbon content of 1.0×10?14 or more. The polyacrylic acid (salt)-based water-absorbing resin has: a CRC of 10 [g/g] or more; an AAP of 20 [g/g] or more; an Ext of 35 wt. % or less; a content of residual monomers of 1,000 ppm or less; a PSD in which the proportion of particles having a particle diameter of 150 ?m or larger but less than 850 ?m is 90 wt. % or more; and an FSR of 0.15 [g/g/s] or more.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: May 5, 2020
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Satoshi Matsumoto, Yuki Kabeya, Kunihiko Ishizaki, Yoshifumi Adachi
  • Patent number: 10363339
    Abstract: An object of the present invention is to provide (i) a water absorbent agent composition which has an excellent additional function (a deodorizing function in particular), which stably carries out the additional function even after being stored for a long term, and which is less stressful to skin when used as an absorbent article, (ii) a method for producing the water absorbent agent composition, and (iii) an absorbent core and an absorbent article. The water absorbent agent composition contains: a polycarboxylic acid (salt)-based water absorbent resin as a main component; a natural ingredient; and a temporal deterioration preventing agent. Further, a water absorbent agent composition is produced by simultaneously or separately mixing a natural ingredient and a temporal deterioration preventing agent with a water absorbent resin which is a crosslinked polymer of unsaturated monomers having carboxylic acid and/or a salt thereof.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: July 30, 2019
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Manabu Ueda, Hiroyuki Ikeuchi, Yasuhisa Nakashima, Katsuyuki Wada
  • Patent number: 10307506
    Abstract: The disclosed process for continuously producing a water-absorbing resin comprising a plurality of joined continuous steps; a polymerization step of polymerizing an aqueous unsaturated monomer solution, a drying step of drying a particulated water-containing gel-like crosslinked polymer obtained in a finely crushing step during the polymerization or after the polymerization, a pulverizing step after the drying, a classification step after the drying, and a surface treatment step for the water-absorbing resin powder after the classification step. In the process, with some of the above steps kept running, the other steps are interrupted, and subsequently all the steps are restarted.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: June 4, 2019
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Syuji Kanzaki, Sumio Okuda, Kunihiko Ishizaki, Satoshi Matsumoto
  • Patent number: 10224507
    Abstract: Methods for forming an OLED device are described. An encapsulation structure having organic buffer layer and an interface layer disposed on the organic buffer layer sandwiched between barrier layers is deposited over an OLED structure. In one example, an OLED device includes a first barrier layer disposed on a region of a substrate having an OLED structure disposed thereon, a fluorinated buffer layer including a polymer material containing fluorine disposed on the first barrier layer, an interface layer including the polymer material on the fluorinated buffer layer, and a second barrier layer disposed on the interface layer.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: March 5, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jrjyan Jerry Chen, Soo Young Choi
  • Patent number: 10124315
    Abstract: In a water-absorbent resin production apparatus for producing a water-absorbent resin by polymerizing a water-soluble ethylenically unsaturated monomer, a water-absorbent resin powder obtained by drying a water-absorbent resin composition with a dryer passes through a first powder flow path pipe, is discharged therefrom toward a classifier while a flow rate is regulated so as to a predetermined value by a powder flow rate regulating discharge member composed of a hopper and a rotary valve, and is classified by the classifier. In the water-absorbent resin production apparatus, a collector for collecting a powder aggregate composed of aggregated particles of the water-absorbent resin powder is disposed in the first powder flow path pipe. Accordingly, a water-absorbent resin in the form of a particulate powder from which the powder aggregate is removed can be produced at a high production efficiency.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: November 13, 2018
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Muneaki Tanaka, Nobutsugu Okazawa, Masato Kotake
  • Patent number: 10106637
    Abstract: Novel methods and materials particularly useful for ophthalmic applications and to methods for making and using the same are disclosed herein. More particularly, relatively soft, optically transparent, foldable, high refractive index materials particularly suited for use in the production of intraocular lenses, contact lenses, and other ocular implants and to methods for manufacturing and implanting IOLs made therefrom are disclosed.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: October 23, 2018
    Inventor: Khalid Mentak
  • Patent number: 9962680
    Abstract: Provided is a method for producing a polyacrylic acid (salt)-based water absorbent resin, which is a convenient production method for a water absorbent resin for an absorbent suitable for practical use, the water absorbent resin having a reduced amount of residual monomers.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: May 8, 2018
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Satoshi Matsumoto, Kunihiko Ishizaki, Kanako Tsuru
  • Patent number: 9896529
    Abstract: The present invention provides a method for producing, by adding an additive and/or gas bubbles to a monomer with high efficiency, a polyacrylic acid (salt)-based water-absorbing resin having high physical properties while high productivity is maintained. The step of preparing an aqueous monomer solution includes the steps of: preparing an aqueous solution; and adding a water-insoluble additive and/or gas bubbles. A retention time from when the water-insoluble additive and/or the gas bubbles is/are added to when polymerization starts is 1 second to 60 seconds.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: February 20, 2018
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Satoshi Matsumoto, Kunihiko Ishizaki, Shinichi Fujino
  • Patent number: 9834626
    Abstract: Plant oil-based compounds are provided which possess both low viscosity and high reactive functionality. These compounds are useful in coating and composite applications, as well as related methods. Exemplary compounds can be produced by transesterification of a plant oil triglyceride with a nucleophile reactant, such as a vinyl-functional alcohol, to yield reactive fatty acid-containing monomers.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 5, 2017
    Assignee: NDSU RESEARCH FOUNDATION
    Inventors: Bret Ja Chisholm, Harjyoti Kalita, Samim Alam, Andrey Chernykh
  • Patent number: 9828291
    Abstract: A fluidizing composition in the form of a liquid or in the form of a powder including at least one superplasticizer chosen from polycarboxylate ethers, characterized in that it includes from 1 to 20 parts by weight of at least one aromatic hydrocarbon sulfonic acid or one of its salts chosen from alkali salts, alkaline-earth salts or one of their mixtures, for 100 parts by weight of the superplasticizer. A method for preparing such fluidizing composition, a dry mortar incorporating the fluidizing composition, as well as plasters prepared from the dry mortar are also described.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: November 28, 2017
    Assignee: KERNEOS
    Inventors: Pascal Boustingorry, Philippe Maitrasse, Jean-Noel Bousseau, Pascal Taquet, Jacques Estival
  • Patent number: 9718733
    Abstract: An amphoteric betaine-type polycarboxylic acid water reducer and a preparation method therefor are provided in the present invention. An unsaturated betaine-type monomer A and an acrylic acid-type polyethylene glycol monomer B are placed in a reaction container, stirred until uniform and then an acrylic acid-type monomer C is added, the stirring is continued and water is added to make adjustments so as to make the total mass of the monomers account for 10%-20% of the total mass of the aqueous solution; and under the protection of an inert gas, the temperature is raised to 60° C.-100° C., an aqueous initiator solution is added, maintaining the temperature and reacting for 4-6 h, and after the reaction is completed, the solution is cooled to room temperature, and the pH value thereof is adjusted to 5-7 to prepare the amphoteric betaine-type polycarboxylic acid water reducer.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: August 1, 2017
    Assignee: SHENZHEN UNIVERSITY
    Inventors: Shaojun Chen, Shiguo Chen, Zaochuan Ge, Chengbin Chen, Lidan Gu
  • Patent number: 9518133
    Abstract: The physical properties of a water-absorbing resin with low residual monomer content are improved or stabilized, without sacrifices in productivity, production cost, stability, etc. Provided is a water-absorbing resin with low residual monomer content and excellent whiteness, wherein a water-absorbing resin consumed in large quantities in disposable diapers, etc., is preferably a sustainable and renewable water-absorbing resin that does not require excessive purification of the acrylic acid, particularly acrylic acids derived from non-fossil sources, that is the starting material of the water-absorbing resin. Disclosed is a method of manufacturing a hydrophilic polyacrylic acid (salt) resin, which is a method of manufacturing a water-absorbing polyacrylic acid resin that comprises a step in which a monomer is prepared from acrylic acid, a step in which said monomer is polymerized, and a step in which the resulting hydrous gel is dried.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: December 13, 2016
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Shinichi Fujino, Satoshi Matsumoto, Kunihiko Ishizaki
  • Patent number: 9518180
    Abstract: The present invention relates to an absorbent suitable for use in a thin sanitary material/absorbent article having a high absorbent content and not prone to gel blocking, the absorbent having excellent liquid diffusibility (e.g. SFC) and minimal decrease in absorption ratio under pressure (e.g., AAP or PUP) even when a liquid permeation enhancer is added, and to a method for manufacturing the high-performance absorbent stably during actual production. The method is a method for manufacturing a polyacrylic acid (salt)-based absorbent, having a surface-crosslinking agent addition step for adding a solution of a surface-crosslinking agent, and a liquid permeation enhancer addition step for adding a liquid permeation enhancer, the liquid permeation enhancer addition step being performed after and/or at the same time as the surface-crosslinking agent addition step, the method characterized in that a surface crosslinking step for performing heat treatment in an atmosphere having a dew point of 45° C. to 100° C.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: December 13, 2016
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kazuki Kimura, Yusuke Watanabe, Sayaka Machida, Taku Fujimoto, Kenji Kadonaga
  • Patent number: 9476063
    Abstract: Described herein are copolymers, and methods of making and utilizing such copolymers. Such copolymers have at least two blocks: a first block that has at least one unit that is hydrophilic at physiologic pH, and a second block that has hydrophobic groups. This second block further has at least one unit with a group that is anionic at about physiologic pH. The described copolymers are disruptive of a cellular membrane, including an extracellular membrane, an intracellular membrane, a vesicle, an organelle, an endosome, a liposome, or a red blood cell. Preferably, in certain instances, the copolymer disrupts the membrane and enters the intracellular environment. In specific examples, the copolymer is endosomolytic.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: October 25, 2016
    Assignees: University of Washington, PhaseRx, Inc.
    Inventors: Patrick S. Stayton, Allan S. Hoffman, Anthony J. Convertine, Danielle Benoit, Craig L. Duvall, Paul H. Johnson, Anna S. Gall
  • Patent number: 9410028
    Abstract: Process for preparing polyacrylates, by the free-radical polymerization of monomer mixtures comprising at least 70% by weight of at least one acrylic and/or methacrylic ester in the presence of amino acids as regulator substances, and reaction solution comprising one or more solvents and one or more monomers, at least 50% by weight of the solvents being organic solvents, and at least 70% by weight of the monomers being acrylic and/or methacrylic esters, with at least one amino acid being present.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 9, 2016
    Assignee: tesa SE
    Inventors: Alexander Prenzel, Jennifer Beschmann
  • Patent number: 9353004
    Abstract: The present invention provides a dispersant for a hydraulic composition containing N-methyldiethanolamine and a specific (meth)acrylic acid copolymer as a polycarboxylic acid copolymer dispersing agent to increase the fluidity of a hydraulic composition.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: May 31, 2016
    Assignee: KAO CORPORATION
    Inventors: Keiichiro Sagawa, Masaaki Shimoda, Koji Nagasawa
  • Patent number: 9309432
    Abstract: In a composition aspect of the invention, a nanoparticle coating comprises repeating polyacrylic acid monomers covalently bound together in an aliphatic chain having a plurality of carboxylic acid functional groups and modified carboxylic acid functional groups extending therefrom. A first portion of the modified carboxylic acid functional groups are modified by a PEG oligomer having a terminal methoxy functional group and a second portion of the modified carboxylic acid functional groups are modified by a PEG oligomer having at least one terminal catechol group.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: April 12, 2016
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Hedi Mattoussi, Goutam Palui, Hyon Bin Na
  • Patent number: 9221030
    Abstract: A method for producing a water-absorbent resin includes a polymerization step of polymerizing a polymerizable component containing a water-soluble ethylenically unsaturated monomer dissolved in water using a water-soluble azo-type radical polymerization initiator to obtain a reaction system including a water-absorbent resin precursor, and a dehydration step of removing water from the reaction system by heating. In the dehydration step, a water-soluble radical polymerization initiator is added to the reaction system at any first dehydration stage when the residual water rate calculated by the formula (1) is 50% or more, and a reducing substance is added to the reaction system at any second dehydration stage when the residual water rate decreases from that at the first dehydration stage by 10% or more. According to this production method, a water-absorbent resin having satisfactory water-absorption capacity can be produced while suppressing the content of residual monomers.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: December 29, 2015
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Noriko Honda, Ayaka Watanabe, Kimihiko Kondo
  • Patent number: 9147784
    Abstract: The present invention provides a crosslinked polyethylene sealing material sheet for a solar-cell module offering exceptional heat resistance, wherein the sealing material sheet is provided with high metal-adhesion performance. A sealing material sheet for a solar-cell module comprises a sealing material sheet composition for a solar-cell module containing a polyethylene resin in a concentration of 0.900 g/cm3 or less, glycidyl methacrylate (GMA), a radical polymerization initiator, and triallyl isocyanurate (TAIC), wherein the GMA content of the sealing material sheet is 0.15 to 3.0% by mass, the TAIC content of the sealing material sheet is 0.15 to 3.0% by mass, and the radical polymerization initiator content of the sealer is 0.01 to 2.5% by mass.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: September 29, 2015
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yasushi Shirahige, Kosuke Saeki, Hidenori Asai, Toshio Yoshihara
  • Patent number: 9061269
    Abstract: A method for producing a water-absorbent resin by a reversed-phase suspension polymerization method, includes step 1 of dispersing a first aqueous solution containing a partially neutralized product (A) of a water-soluble ethylenically unsaturated monomer having acid groups in the molecule in a petroleum-type hydrocarbon dispersion medium in the presence of a dispersing agent, and then polymerizing the resulting dispersion to obtain a slurry containing primary particles of a polymer, and step 2 of adding a second aqueous solution containing a partially neutralized product (B) of a water-soluble ethylenically unsaturated monomer having acid groups in the molecule to the slurry obtained in step 1, and then polymerizing the mixture to obtain a slurry in which the primary particles are agglomerated. In the method, a molar neutralization degree X of the partially neutralized product (A) and a molar neutralization degree Y of the partially neutralized product (B) are defined.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: June 23, 2015
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Masayoshi Handa, Koji Ueda, Kimihiko Kondo
  • Patent number: 9044525
    Abstract: Provided is a water absorbent resin having excellent liquid permeability, water absorbent speed, anti-impact stability, and weather resistance. Provided is a polyacrylic acid (salt)-based water absorbent resin powder in which the water absorption capacity without load (CRC) is 30 to 45 [g/g], the water absorption capacity under load (AAP 0.3) is 20 to 35 [g/g], the water absorption capacity under load (AAP 0.7) is 10 to 28 [g/g], and the weight average particle diameter (D50) is 300 to 500 ?m, characterized by including p-methoxyphenol; having a degradable soluble component (0.05% L-A (saline) for 2 hours/60° C., one hour extraction rinse/room temperature) of 40% by weight or less; and having a internal gas bubbles ratio of 0.1 to 2.5%, as specified by the following equation.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: June 2, 2015
    Assignee: NIPPON SHOKUBAI CO., LTD.
    Inventors: Kazushi Torii, Reiko Nakatsuru, Yasuhisa Nakashima, Katsuyuki Wada, Kunihiko Ishizaki
  • Publication number: 20150144563
    Abstract: Articles containing soil adsorbing polymers, and more particularly, articles, for example nonwovens, such as paper towels, wovens, and/or sponges and/or article-forming components thereof that comprise a durably bonded soil adsorbing polymer, article-forming components used to make such articles, and processes for making same are provided.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Robin Lynn McKIERNAN, Robert Joseph McCHAIN, Steven Daryl SMITH
  • Patent number: 9034996
    Abstract: The present invention relates to a production method for efficiently obtaining an acrylic acid-based polymer having a narrow molecular mass distribution and a low molecular mass, without using a large amount of chain transfer agent. A method for continuously producing an acrylic acid-based polymer obtained by continuously polymerizing a monomer having acrylic acid as an essential component, characterized in that a liquid feed pump applies a mechanical load of 0.5 to 2.5 kJ/L to the liquid discharged from the outlet of a reactor. An acrylic acid-based polymer having fewer high-molecular-mass components, excellent dispersion and other properties, and a low molecular mass is thereby obtained.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: May 19, 2015
    Assignee: TOAGOSEI CO., LTD.
    Inventor: Masahiro Fujiwara
  • Patent number: 9029485
    Abstract: A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a surrounding gas phase in a reaction chamber, wherein the monomer solution is metered into the reaction chamber via at least one bore, and the diameter is from 210 to 290 ?m per bore and the metering rate is from 0.9 to 5 kg/h per bore.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: May 12, 2015
    Assignee: BASF SE
    Inventors: Marco Krüger, Stefan Blei, Wilfried Heide, Matthias Weismantel, Uwe Stueven
  • Patent number: 9023116
    Abstract: As associative thickener obtainable by free radical polymerization, the preparation thereof and the use thereof in paper coating slips are described. The associative thickener is formed from (a) acid monomers selected from ethylenically unsaturated C3- to C8-carboxylic acids, (b) associative monomers of the general formula H2C?CR1—COO-(EO)n—(PO)m—R2, in which R1 is hydrogen or methyl, n is a number of at least two, m is a number from zero to 50, EO is an ethylene oxide group, PO is a propylene oxide group and R2 is a C8-C30-alkyl group or a C8-C30-alkaryl group, and (c) nonionic, copolymerizable monomers differing from a) and b), the reaction product having been reacted, after the polymerization, with initiators forming nonionic radicals.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: May 5, 2015
    Assignee: BASF SE
    Inventors: Philipp Zacharias, Hermann Seyffer, Ilshat Gubaydullin, Harutyun Hanciogullari, Marc Bothe
  • Publication number: 20150119541
    Abstract: A process for the production of methacrylic acid or esters thereof by the base catalysed decarboxylation of at least one dicarboxylic acid selected from itaconic, citraconic or mesaconic acid or mixtures thereof in an aqueous reaction medium is described. The decarboxylation is carried out at a temperature in the range from 200° C. and up to 239° C. The methacrylic acid is isolated from the aqueous reaction medium by a purification process which does not include introducing an organic solvent to the aqueous reaction medium for solvent extraction of the methacrylic acid into an organic phase. A method of preparing polymers or copolymers of methacrylic acid or methacrylic acid esters is also described.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 30, 2015
    Inventors: Graham Ronald Eastham, David William Johnson, Mark Waugh
  • Patent number: 9018307
    Abstract: The invention provides an adhesive composition for conduction between electrical elements, comprising 25 to 46 parts by weight of nitrile-butadiene rubber with Mooney viscosity ranged from 50 to 75 (ML 1+4@100)° C., 25 to 45 parts by weight of acrylic oligomer, 16 to 32 parts by weight of thermoplastic resin, two organic peroxides having different one-minute half-life temperatures from each other, and a coupling agent. The thermoplastic resin is selected from the group consisting of phenoxy resin, poly(methyl)methacrylate copolymer, polystyrene copolymer and Novolak resin.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: April 28, 2015
    Assignee: BenQ Materials Corporation
    Inventors: Tsung-Ju Hsu, Yu-Chen Yeh, Kai-Hsuan Chang
  • Patent number: 9018327
    Abstract: A catalyst composition is provided. The composition comprises at least 30 percent by weight of a catalyst compound based on the total weight of solids in the catalyst composition; and a polymer prepared from ethylenically unsaturated monomers. The polymer either (i) has a backbone derived from substantially hydrophilic monomers and/or monomers containing groups that may be rendered substantially hydrophilic after polymerization, and a plurality of side chains along the backbone derived from substantially hydrophobic monomers, or (ii) has a backbone derived from substantially hydrophobic monomers and a plurality of side chains along the backbone derived from substantially hydrophilic monomers and/or monomers containing groups that may be rendered substantially hydrophilic after polymerization. The catalyst compound is contained within or encapsulated by the polymer. Methods of preparing the catalyst composition and curable compositions containing the catalyst composition are also provided.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: April 28, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Scott Moravek, Davina Schwartzmiller, Steven V. Barancyk, David Fenn
  • Patent number: 9012356
    Abstract: The purpose of the present invention is to provide a method for producing a water absorbent resin having improved physical properties, particularly, improved saline flow conductivity (SFC) and less amount of fine powder.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: April 21, 2015
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Koji Tachi, Hironori Sato, Kazushi Torii, Hiroyuki Ikeuchi
  • Patent number: 9006366
    Abstract: Processes for making water-absorbent cross-linked polymers, such as polyacrylic acids/polyacrylates, using supercritical medium; and water-absorbent polymers, e.g. particles thereof, obtained by such processes, where such particles may be porous.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: April 14, 2015
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Tombuelt-Meyer, Axel Meyer, Torsten Lindner
  • Patent number: 9006134
    Abstract: The application relates to the particulate water absorbing agent of the present invention composed primarily of a polyacrylic acid- or polyacrylate-based water absorbing resin and containing a chelating agent and a phosphorous compound. Accordingly, the particulate water absorbing agent composed primarily of a water absorbing resin achieves both excellent water absorbing properties and anti-coloring effect which would normally be incompatible. A particulate water absorbing agent for absorbent core is provided that is suitable for actual use.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: April 14, 2015
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Makoto Nagasawa, Hiroyuki Ikeuchi
  • Patent number: 9000112
    Abstract: The present invention relates to a resin mixture for melt processing, comprising a first resin; and a second resin comprising an acrylate-based copolymer including silica particles and having a polydispersity index (PDI) of 1 to 2.5, a method for preparing a resin-molded article using the same, and a resin-molded article. Surface characteristics of the molded article can be improved and excellent scratch resistance can be obtained by using the resin composition. In addition, processing time can be reduced, productivity is increased, and manufacturing costs are lowered by omitting the additional surface coating step.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 7, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jin Young Ryu, Houng Sik Yoo, Hak Shin Kim, Eun Joo Choi, Young Jun Hong
  • Publication number: 20150094438
    Abstract: A process for the production of methacrylic acid by the base catalysed decarboxylation of at least one dicarboxylic acid selected from itaconic, citraconic or mesaconic acid or mixtures thereof is described. The decarboxylation is carried out at a temperature in the range from 100 to 199° C. A method of preparing polymers or copolymers of methacrylic acid or methacrylic acid esters is also described.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 2, 2015
    Inventors: Graham Ronald Eastham, David William Johnson, Mark Waugh
  • Publication number: 20150087031
    Abstract: The present invention relates to methods of processing lignocellulosic material to obtain hemicellulose sugars, cellulose sugars, lignin, cellulose and other high-value products. Also provided are hemicellulose sugars, cellulose sugars, lignin, cellulose, and other high-value products.
    Type: Application
    Filed: May 3, 2013
    Publication date: March 26, 2015
    Inventors: Robert Jansen, Claire Gregoire, philip Travisano, Lee Madsen, Neta Matis, Yael Har-Tal, Shay Eliahu, James Alan Lawson, Noa Lapidot, Luke Burke, Aharon M. Eyal, Timothy Allen Bauer, Hagit Sade, Paul Mcwilliams, Ziv-Vladimir Belman, Bassem Hallac, Michael Zviely, Yelena Gershinksy, Adam Carden
  • Publication number: 20150080821
    Abstract: An absorbent core (28), for use in an absorbent article, comprising a core wrap (16, 16?) enclosing an absorbent material (60) comprising superabsorbent polymer particles. The core wrap comprises a top side (16) and a bottom side (16?), and the absorbent core comprises one or more area(s) (26) substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, so that when the absorbent material swells the core wrap forms one or more channel(s) (26?) along the area(s) (26) substantially free of absorbent material. The superabsorbent polymer particles have a time to reach an uptake of 20 g/g (T20) of less than 240 s as measured according to the K(t) test method.
    Type: Application
    Filed: August 19, 2014
    Publication date: March 19, 2015
    Inventors: Andrea PERI, Aniruddha CHATTERJEE, Peter DZIEZOK, Bruno Johannes EHRNSPERGER, Juliane KAMPHUS, Marion LUTSCHE
  • Patent number: 8975351
    Abstract: The present invention provides a latex resin composition for rubber gloves without sulfur and a vulcanization accelerator and a method of manufacturing dip-formed article using the composition. The composition comprises a conjugated diene monomer; an ethylenically unsaturated nitrile monomer; an ethylenically unsaturated acid monomer; an ethylenically unsaturated monomer copolymerizable with the ethylenically unsaturated nitrile monomer and the ethylenically unsaturated acid monomer; and a reactive compound including two or more reactive groups. According to the manufacturing method, productivity is improved by omitting a long maturation process included in a traditional glove manufacturing process; not only an adverse effect caused by traditional sulfur and vulcanization accelerator is reduced but also rubber gloves with excellent physical properties can be provided.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: March 10, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Byoung Yun Kim, Jung Su Han, Ho Yeul Choi, Seung Hun Yang, Jung Eun Kim, Chang Sun Han
  • Patent number: 8969497
    Abstract: A method for producing a water-absorbent resin including the step of subjecting a water-soluble ethylenically unsaturated monomer to a reversed phase suspension polymerization in a petroleum hydrocarbon dispersion medium in the presence of a radical polymerization initiator and a dispersion stabilizer, wherein the method is characterized by the use of an ether-ester type nonionic surfactant as the dispersion stabilizer, and a water-absorbent resin obtained by the method, wherein the water-absorbent resin has a water-retention capacity of saline solution of 25 g/g or more, a water-absorption rate of saline solution of 50 seconds or less, and a flow index under moisture absorption of 70% or more. According to the method of the present invention, a water-absorbent resin having high water-retention capacity, excellent water-absorption rate, and further having excellent flowability under moisture absorption can be produced.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: March 3, 2015
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Masayoshi Handa, Junichi Takatori
  • Patent number: 8962777
    Abstract: Crosslinked pressure-sensitive adhesive comprising at least one base polymer component obtainable by free-radical copolymerization of the following monomers: a) linear acrylic esters having 2 to 10 C atoms in the alkyl radical, b) branched, non-cyclic acrylic esters having a glass transition temperature Tg (based on the DSC measurement to DIN 53765) of not more than ?20° C., c) 8% to 15% by weight of acrylic acid, d) optionally up to 10% by weight of further copolymerizable monomers, characterized in that the ratio of the linear acrylic esters to the branched acrylic esters is in the range from 1:6 to 10:1 mass fractions.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: February 24, 2015
    Assignee: tesa SE
    Inventors: Kai Ellringmann, Marco Kupsky
  • Patent number: 8957150
    Abstract: The present invention provides an aqueous dispersion comprising a polyamide-based rubber-like elastomer emulsified and dispersed therein, wherein 0.8 to 10 parts by weight of a copolymer of ethylene with an ethylenically unsaturated carboxylic acid, relative to 100 parts by weight of the polyamide-based rubber-like elastomer is contained. The aqueous dispersion of the present invention is a novel aqueous dispersion of polyamide-based rubber-like elastomer that is excellent in storage stability at low temperatures, and that can provide processed products excellent in flexibility and heat resistance when used as a coating material.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: February 17, 2015
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Jun Sakata, Hiromasa Miyazaki, Taiji Matsukawa
  • Patent number: 8951495
    Abstract: The present invention relates to odor-inhibiting compositions comprising water-absorbing polymer particles and metal peroxides, and to the production thereof.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: February 10, 2015
    Assignee: BASF SE
    Inventors: Volker Braig, Thomas Daniel, Rupert Konradi, Herbert Platsch, Bettina Sobotka, Axel Jentzsch
  • Patent number: 8952116
    Abstract: A particulate water absorbing agent of the present invention is a water absorbing agent containing a water absorbing resin as a main component, the particulate water absorbing agent containing a polyvalent metal cation and satisfying: (1) the polyvalent metal cation is contained in an amount between 0.001 wt % and 5 wt % relative to the amount of the water absorbing agent; (2) an absorbency without pressure (CRC) is not less than 28 (g/g) and an absorbency against pressure (AAP 4.83 kPa) is not less than 10 (g/g); (3) the absorbency against pressure and the absorbency without pressure satisfy 77?AAP (4.83 kPa)+1.8×CRC?100; and (4) a moisture content of the water absorbing agent is between 5 wt % and 20 wt %. This provides a water absorbing agent which has blocking resistance after moisture absorption, is excellent in stability to shock and suppresses Re-Wet when used in a diaper.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: February 10, 2015
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Taishi Kobayashi, Motohiro Imura, Taku Iwamura, Katsuyuki Wada, Kozo Nogi, Yoshiro Mitsukami, Masato Abe, Hiroko Ueda, Koji Honda
  • Publication number: 20150031261
    Abstract: A technique for forming fibers (e.g., nanofibers, microfibers, etc.) from an aqueous spinning solution is provided. Through careful control over the nature and relative concentration of the components in the solution, fibers can be formed that remain relatively water resistant. To help accomplish these unique features, a pH-sensitive polymer is employed in the spinning solution that is generally soluble in water at a certain pH value, yet generally insoluble in water at a different pH value. This property allows for selective adjustment of the pH both before and after spinning to control the water-solubility of the polymer as desired.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 29, 2015
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Kelly Branham, Sara Honarbakhsh
  • Patent number: 8940845
    Abstract: The invention provides a novel method for producing a water-absorbent resin comprising: subjecting at least one water-soluble ethylenic unsaturated monomer to reversed-phase suspension polymerization in a petroleum hydrocarbon dispersion medium, the reversed-phase suspension polymerization being conducted using a 0.00005 to 0.00016 mole of water-soluble azo initiator for radical polymerization per mole of the water-soluble ethylenic unsaturated monomer in the presence of 0.000015 to 0.00015 mole of hypophosphorous compound per mole of the water-soluble ethylenic unsaturated monomer. According to the method, the environmental impact can be lessened by reducing the amount of petroleum hydrocarbon dispersion medium released to the outside of the system, and the method makes it possible to obtain a water-absorbent resin having a high water-retention capacity and water-absorption capacity under a load, and a small content of water soluble component at the same time.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: January 27, 2015
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Shinya Fukudome, Tetsuhiro Hinayama, Noriko Honda, Junichi Takatori