Core-shell Patents (Class 525/902)
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Patent number: 12129374Abstract: The present invention relates to an acrylic graft copolymer, a method of preparing the same, and a thermoplastic resin composition including the same. More specifically, the acrylic graft copolymer of the present invention includes a seed, a core, and a graft shell. In this case, the graft shell includes 0.05 to 2 parts by weight of a reactive ultraviolet stabilizer based on 100 parts by weight of the acrylic graft copolymer, and the graft shell has an average particle diameter of 80 to 140 nm (greater than the average particle diameter of the core). The acrylic graft copolymer of the present invention has excellent impact strength, tensile strength, weather resistance, and surface gloss. In addition, when the acrylic graft copolymer is used, mold deposits may be reduced.Type: GrantFiled: September 11, 2020Date of Patent: October 29, 2024Assignee: LG CHEM, LTD.Inventors: Bong Keun Ahn, Yong Yeon Hwang, Min Jung Kim, Jang Won Park, Jiyoon Jeon, Eunji Lee, Seyong Kim
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Patent number: 12104379Abstract: A microbial growth and dust retardant roofing shingle comprising a substrate and a pore filling composition applied on the surface of the substrate is disclosed. The pore filling composition comprises a silane or acrylic composition. A method of protecting a substrate from microbial growth and soiling using the pore filling composition of the present disclosure is also disclosed.Type: GrantFiled: September 13, 2021Date of Patent: October 1, 2024Assignee: CERTAINTEED LLCInventors: Rathish Sathyabama Arumugam, Sriram Yagneswaran, Vinay Natrajan
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Patent number: 12054648Abstract: An epoxy-based adhesive composition and the methods of manufacturing the same are provided. The adhesive composition provides excellent adhesion strength, peel strength and impact-resistant strength uniformly over a wide temperature range.Type: GrantFiled: July 25, 2019Date of Patent: August 6, 2024Assignee: LG Chem, Ltd.Inventor: Min Jin Ko
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Patent number: 12031031Abstract: One object of the present invention is to provide an emulsion composition comprising a silicone and an emulsion of a resin having a film forming property, which emulsion composition may provide a coating agent which effectively exhibits slidability of silicone on a substrate, while maintaining transparency. Another object of the present invention is to provide a laminate having a film made of the coating agent. The present invention provides an emulsion composition comprising (I) an emulsion of a resin having a film forming property in a solid content of 60 to 99.9 parts by mass and (II) an emulsion of a silicone-acrylic core-shell resin in solid content of 0.Type: GrantFiled: March 4, 2021Date of Patent: July 9, 2024Assignee: NISSIN CHEMICAL INDUSTRY CO., LTD.Inventor: Kentaro Watanabe
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Patent number: 12018188Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. The adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 45° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and two or more types of monomers.Type: GrantFiled: July 29, 2019Date of Patent: June 25, 2024Assignee: LG Chem, Ltd.Inventors: Byungsu Park, Yoonkyung Kwon, Hui Je Lee, Seongwook Kang, Sanghun Han
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Patent number: 12018190Abstract: The present application relates to an adhesive composition comprising a (meth)acrylate-based resin and a polymer having a melting temperature (Tm) of 35° C. or higher, an adhesive film comprising a base film and an adhesive sheet comprising the adhesive composition, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film.Type: GrantFiled: July 29, 2019Date of Patent: June 25, 2024Assignee: LG Chem, Ltd.Inventors: Seongwook Kang, Yoonkyung Kwon, Byungsu Park, Hui Je Lee, Sanghun Han
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Patent number: 12012535Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. The adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 53° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and one type of monomer.Type: GrantFiled: July 29, 2019Date of Patent: June 18, 2024Assignee: LG Chem, Ltd.Inventors: Hui Je Lee, Yoonkyung Kwon, Byungsu Park, Seongwook Kang, Sanghun Han
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Patent number: 12006456Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. The adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 53° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and two or more types of monomers.Type: GrantFiled: July 29, 2019Date of Patent: June 11, 2024Assignee: LG Chem, Ltd.Inventors: Hui Je Lee, Yoonkyung Kwon, Byungsu Park, Seongwook Kang, Sanghun Han
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Patent number: 12006449Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. The adhesive composition includes a (meth)acrylate-based resin; and a polymer having a melting temperature (Tm) of 60° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and two or more types of monomers.Type: GrantFiled: July 29, 2019Date of Patent: June 11, 2024Assignee: LG Chem, Ltd.Inventors: Sanghun Han, Yoonkyung Kwon, Byungsu Park, Hui Je Lee, Seongwook Kang
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Patent number: 11993736Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. An adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 60° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and one type of monomer.Type: GrantFiled: July 29, 2019Date of Patent: May 28, 2024Assignee: LG Chem, Ltd.Inventors: Sanghun Han, Yoonkyung Kwon, Byungsu Park, Hui Je Lee, Seongwook Kang
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Patent number: 11993734Abstract: An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. The adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 45° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and one type of monomer.Type: GrantFiled: July 29, 2019Date of Patent: May 28, 2024Assignee: LG Chem, Ltd.Inventors: Byungsu Park, Yoonkyung Kwon, Hui Je Lee, Seongwook Kang, Sanghun Han
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Patent number: 11987702Abstract: A thermoplastic resin composition comprising 80 to 99.9 parts by mass of a thermoplastic resin (I), and 0.1 to 20 parts by mass of a silicone-acryl core-shell resin (II), a total mass of the thermoplastic resin (I) and the silicone-acryl core-shell resin (II) being 100 parts by mass, wherein a core particle of the silicone-acryl core-shell resin (II) is composed of an organopolysiloxane (A), and a shell layer of the silicone-acryl core-shell resin (II) is composed of a poly (meth) acrylate ester (B), a mass ratio of the organopolysiloxane (A) to the poly (meth) acrylate ester (B) is in a range of 40:60 to 90:10, and a length (?) of the part of a circumference occupied by the poly (meth) acrylate ester in the silicone-acryl core-shell resin (II) accounts for at least 90% of a whole circumferential length (?) of the silicone-acryl core-shell resin (II).Type: GrantFiled: October 14, 2020Date of Patent: May 21, 2024Assignee: NISSIN CHEMICAL INDUSTRY CO., LTD.Inventor: Kentaro Watanabe
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Patent number: 11981830Abstract: The present invention relates to a paint composition comprising an aqueous dispersion of a) polymer particles having an average particle size in the range of from 80 nm to 500 nm; b) polymeric organic crosslinked microspheres having a particle size in the range of from 1 ?m to 20 ?m; c) polysiloxane particles having a particle size in the range of from 1 ?m to 30 ?m; d) a rheology modifier; e) an opacifying white pigment having a refractive index of >1.9; and f) less than 10 weight percent of a low Tg polyurethane. The composition of the present invention gives coatings with excellent burnish resistance.Type: GrantFiled: October 22, 2019Date of Patent: May 14, 2024Assignees: Rohm and Haas Company, Dow Silicones CorporationInventors: James C. Bohling, Ibrahim Eryazici, Bradley K. Hageman, Philip R. Harsh, Yihan Liu, Partha S. Majumdar, Edwin A. Nungesser, Timothy A. Roggow, II
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Patent number: 11912901Abstract: A waterborne coating composition including a novel polymer latex and methods of preparing the polymer latex for the waterborne coating composition. The disclosed polymer latex, when incorporated into the waterborne coating composition, reduces gloss, and achieves a matte appearance without the need for and/or with reduced amounts of traditional inorganic matting additives. In one approach, the polymer latex disclosed herein includes latex particles having a core/shell arrangement configured to not only participate in film formation but also impact surface morphology of dried films to produce the low gloss coatings.Type: GrantFiled: December 29, 2021Date of Patent: February 27, 2024Assignee: SWIMC LLCInventors: Gamini S. Samaranayake, Shailesh S. Shah, Joseph J. Kestner, Kimberly A. Koglin, Tom Wendland, Margaret Patterson
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Patent number: 11912804Abstract: A core-shell copolymer, a method of making the same, and a thermoplastic resin composition including the same are disclosed herein. In some embodiments, a core-shell copolymer includes a core and a shell surrounding the core, the core includes a conjugated diene-based monomer-derived repeating unit and a phosphate-based cross-linking agent-derived cross-linking part represented by Formula 1, and the shell includes a first alkyl (meth)acrylate monomer-derived repeating unit, a second alkyl (meth)acrylate monomer-derived repeating unit, and a sulfonate-based ionic monomer-derived repeating unit represented by Formula 2. The core is 68 parts to 92 parts and the shell is 8 parts to 32 parts, based on 100 parts of the core-shell copolymer, the core has a swell index of 2.7 to 10.9, the shell includes 1 wt % to 16 wt % of the sulfonate-based ionic monomer-derived repeating unit, and the shell has a weight average molecular weight of 105,000 g/mol to 645,000 g/mol.Type: GrantFiled: October 11, 2019Date of Patent: February 27, 2024Assignee: LG Chem, Ltd.Inventors: Kwang Jin Lee, Yoon Ho Kim, Sang Il Nam, Kyung Bok Sun, Chang No Lee, Sang Hoon Han
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Patent number: 11884815Abstract: A thermosetting resin composition contains a solid epoxy resin that is solid at 25° C. a non-solid epoxy resin that is non-solid at 25° C., particulate rubber dispersed in the non-solid epoxy resin, a curing agent, an inorganic filler, and polycarbonate diol-derived polyurethane. The content of the particulate rubber is from 3 to 15 parts by mass with respect to the total parts by mass of the solid epoxy resin and the non-solid epoxy resin, the acid value of the polycarbonate diol-derived polyurethane is from 10 to 30 mgKOH/g, and the weight average molecular weight of the polycarbonate diol-derived polyurethane is from 15,000 to 50,000.Type: GrantFiled: July 5, 2021Date of Patent: January 30, 2024Assignee: ARISAWA MFG. CO., LTD.Inventors: Takashi Gondaira, Katsuhiko Furukawa, Shota Abe, Takuma Sugai
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Patent number: 11850143Abstract: A tissue repair device and a method for using the same are provided. The tissue repair device includes a body portion and at least one wire. The body portion includes an inner layer and an outer layer. The inner layer is close to a tissue, wherein the inner layer includes a hydrophilic structure, and the outer layer includes a hydrophobic structure. The wire is connected to the body portion to fix the body portion to the tissue.Type: GrantFiled: April 29, 2021Date of Patent: December 26, 2023Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chih-Chieh Huang, Jeng-Liang Kuo, Hui-Ting Huang, Shiun-Yin Chang, Meng-Hsueh Lin, Cheng-Yi Wu, Lih-Tao Hsu, Pei-I Tsai, Hsin-Hsin Shen, Chih-Yu Chen, Kuo-Yi Yang, Chun-Hsien Ma
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Patent number: 11802173Abstract: The wet adhesion of a coating composition may be improved through the use of voided latex particles as opacifying agents which contain a hollow interior as well as an outer shell of a polymer containing functional groups such as amino, 1,3-diketo, urea or ureido. Other types of functional groups may be introduced to the outer shell polymer in order to vary other desired characteristics of the coating. The voided latex particles are non-film-forming.Type: GrantFiled: October 11, 2021Date of Patent: October 31, 2023Assignee: Arkema Inc.Inventors: Keith R. Olesen, Matthew F. Boudreaux, Lily Liu
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Patent number: 11787984Abstract: A description is given of a one-component pressure-sensitive adhesive composition in the form of an aqueous polymer dispersion comprising at least one pressure-sensitive adhesive polymer which is formed by emulsion polymerization of soft (meth)acrylic ester monomers, methacrylic acid, and optionally further monomers, where the polymerization takes place in the presence of chain transfer agents or styrene. The pressure-sensitive adhesive polymer has a gel content which is based at least partly on a reversible crosslinking via metal salts. The one-component pressure-sensitive adhesive composition can be used for producing adhesive labels, adhesive tapes or adhesive foils.Type: GrantFiled: January 2, 2018Date of Patent: October 17, 2023Assignee: BASF SEInventors: Matthias Gerst, Stephan Moebius, Dirk Wulff, Michael Gross
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Patent number: 11725126Abstract: Provided is a multilayer adhesive tape having excellent step coverage and reworkability. The multilayer adhesive tape sequentially includes: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer, in which the intermediate adhesive layer includes an intermediate adhesive polymer including: a polymerization unit of an alkyl group-containing (meth)acrylate monomer; a polymerization unit of a carboxyl group-containing monomer; and a polymerization unit of an acrylamide-based monomer.Type: GrantFiled: May 18, 2018Date of Patent: August 15, 2023Inventors: Jae Sung Hong, Dong Hoon Lim, Ju Yong Seo, Jun Man Choi, Woo Yeon Kim, Ho Kyung Song, Jang Soon Kim, Sle Lee, Kwang Su Seo
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Patent number: 11667729Abstract: An aqueous coating composition is provided that is preferably substantially free of bisphenol A. The coating composition is preferably a latex-based coating composition that includes a latex polymer formed from ingredients including an anionic and/or zwitterionic surfactant that includes one or more acid groups neutralized with a metallic base. The coating composition is useful in coating metal substrates such as, for example, interior and/or exterior surfaces of food or beverage containers.Type: GrantFiled: December 22, 2016Date of Patent: June 6, 2023Inventors: Sebastien Gibanel, Benoit Prouvost
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Patent number: 11667781Abstract: Provided are polyvinyl chloride profile compositions comprising (a) polyvinyl chloride having a K value of from K-63 to K-70, (b) an impact modifier, and (c) ground calcium carbonate having (i) a d50 particle size value of 400 to 900 nm, (ii) a d98 particle size value of less than 2.6 ?m, and (iii) a ratio of particles having a d50 particle size value to particles having a d20 particle size value (d50/d20) of less than 2.0.Type: GrantFiled: June 18, 2018Date of Patent: June 6, 2023Assignee: Dow Global Technologies, LLCInventors: Bernard Cora, David Armstrong
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Patent number: 11623969Abstract: A method for producing a water/oil repellent composition can produce an article which is excellent in the oil repellency while maintaining the water repellency and the heavy-rain durability. The method includes mixing an emulsion of a polymer having from 10 to 50 mass % of units based on a monomer having a perfluoroalkyl group per all units and an emulsion of a monomer component containing at least 80 mass % of a monomer having a perfluoroalkyl group so that the proportion of the mass of the polymer will be from 50 to 99 mass % per the sum of the mass of the polymer and the total mass of the monomer component and then polymerizing the monomer component. The monomer component includes emulsified particles in the emulsion of the monomer component. The emulsified particles have an average particle size of from 50 to 600 nm.Type: GrantFiled: August 17, 2020Date of Patent: April 11, 2023Assignee: AGC Inc.Inventors: Yukiko Shiota, Hiroyuki Hara, Reika Fukuda
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Patent number: 11591432Abstract: The present invention relates to an aqueous polymer dispersion containing a multistage emulsion polymer particle. The multistage emulsion polymer particle contains a polysiloxane formed in the first stage; a transition layer formed in the second stage; and a polyacrylate formed in the third stage. The transition layer is made of silane coupling agents. The present invention also relates to a method of preparing the aqueous polymer dispersion and use of the aqueous polymer dispersion for preparing coatings.Type: GrantFiled: May 24, 2017Date of Patent: February 28, 2023Assignee: BASF SEInventors: Zhong Zeng, Harm Wiese, Rui Deng
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Patent number: 11492481Abstract: This disclosure relates to a thermoplastic resin composition comprising (A) 60 to 85 wt % of a (meth)acrylic resin, (B) 10 to 30 wt % of an acrylic graft copolymer, and (C) 5 to 10 wt % of a maleimide-based heat-resistant copolymer and a molded product using the same.Type: GrantFiled: December 7, 2018Date of Patent: November 8, 2022Assignee: Lotte Chemical CorporationInventors: Hyeongseob Shin, Keehae Kwon, Younghyo Kim, In-Chol Kim, Jieun Park
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Patent number: 11421103Abstract: The present invention relates to a method for preparing a graft copolymer powder, which includes: performing emulsion polymerization of a conjugated diene polymer, an aromatic vinyl monomer and an alkyl (meth)acrylate monomer to prepare a graft copolymer latex; coagulating the graft copolymer latex; aging the coagulated graft copolymer; preparing a wet powder of the graft copolymer by dehydrating the aged graft copolymer; and adding poly(oxyalkylene)diglycolic acid to the wet powder of the graft copolymer.Type: GrantFiled: November 9, 2018Date of Patent: August 23, 2022Assignee: LG CHEM, LTDInventors: Jong Ju Lee, Jeong Su Choi, Won Seok Lee, Roo Da Lee, Ho Hoon Kim, Keun Hoon Yoo, Seok Goo Jang, Sang Hoo Park, Hye Jeong Ok, Hyung Seop Shim
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Patent number: 11214758Abstract: The disclosed technology relates to esterified and/or ether containing polymers derived from itaconic acid that are free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market.Type: GrantFiled: March 13, 2015Date of Patent: January 4, 2022Assignee: Lubrizol Advanced Materials, Inc.Inventors: Krishnan Tamareselvy, Feng-Lung Gordon Hsu, Smita Brijmohan, Francine I. Shuster, John Ta-Yuan Lai, Gaurav Mago, Yunpeng Zhu, Randy B. Collins
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Patent number: 9000098Abstract: Polymer spheres are fabricated. Dispersing polymerization and a two-stage swelling procedure are processed. The polymer spheres fabricated have uniform granular sizes and are highly cross-linking. Thus, the polymer spheres are heat-resistant and solvent-resistant.Type: GrantFiled: May 14, 2012Date of Patent: April 7, 2015Assignee: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Ming-Hsiung Wei, Yu-Wei Hou, Hui Chen, Chun-Lan Tseng
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Patent number: 8951643Abstract: The present invention relates to an optical film and method of manufacturing the same. The optical film of the present invention includes an acrylic resin and a core-shell type graft copolymer wherein the core includes a conjugate diene rubber, and the shell includes an acrylic monomer, an aromatic vinyl monomer, and a maleimide monomer.Type: GrantFiled: October 1, 2009Date of Patent: February 10, 2015Assignee: LG Chem, Ltd.Inventors: Byoung-Il Kang, Chang-Hun Han, Jung-A Yoo, Song-Taek Oh
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Patent number: 8916650Abstract: The present invention relates to an inner-plasticized vinyl chloride-based copolymer resin not requiring plasticizers and a preparation method thereof. Specifically, the vinyl chloride-based copolymer resin is prepared by a suspension polymerization method of initiating the polymerization of vinyl chloride monomer, feeding a certain amount of butyl acrylate continuously or discontinuously thereinto and carrying out the additional polymerization at the temperature higher than the polymerization initiation temperature so as to prepare a core-shell type vinyl chloride-based random copolymer resin. The vinyl chloride-based copolymer resin of core-shell structure prepared by the present invention includes vinyl chloride-butyl acrylate copolymer, and it can provide a vinyl chloride-butyl acrylate copolymer product which can be processed without plasticizers positively necessary to produce a soft product.Type: GrantFiled: July 16, 2013Date of Patent: December 23, 2014Assignee: Hanwha Chemical CorporationInventors: Ji-Woo Kim, Jee-Hyong Lee, Jung-Ho Kong, Yong-Kook Jung, Sang-Hyun Cho
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Patent number: 8907010Abstract: A non aqueous dispersion is disclosed containing: a shell polymer; a core polymer, and a continuous phase solvent, wherein said shell polymer is soluble and said core polymer is insoluble in the continuous solvent. Also disclosed is a method for improving the setting properties of a sheet fed offset ink by adding to the ink the above non aqueous dispersion.Type: GrantFiled: June 11, 2009Date of Patent: December 9, 2014Assignee: Sun Chemical CorporationInventors: Ramasamy Krishnan, Mark Schneider, Jerome Bollard
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Patent number: 8895666Abstract: A method for producing a (meth)acrylic polymer particle comprises polymerizing a monomer (X) having a (meth)acryloyl group to produce a polymer particle, and polymerizing a monomer mixture (Y) in the presence of the polymer particle, in which the monomer (X) is 90 to 99.9% by mass and the monomer mixture (Y) is 0.01 to 10% by mass in terms of the ratio among monomer raw materials to be supplied for polymerization; and the monomer mixture (Y) comprises 1 to 80% by mol of a monomer (a) having a basic nitrogen atom or having a blocked isocyanate as a functional group, 5 to 80% by mol of a (meth)acrylate monomer (b) of at least one alcohol selected from the group consisting of an aliphatic alcohol having 2 or more carbon atoms, an aromatic alcohol, and a cyclic alkyl alcohol, and 0 to 94% by mol of a monomer (c) other than the monomer (a) and the monomer (b).Type: GrantFiled: February 23, 2007Date of Patent: November 25, 2014Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Satoshi Mae, Hiroyasu Irie, Toshihiro Kasai
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Patent number: 8846819Abstract: A method is provided for synthesizing a core-shell nanoparticle that includes the following steps: providing a polymeric seed (in a solvent) that includes a mono-vinyl monomer cross-linked with a cross-linking agent to form the core of the nanoparticle, the core has an average diameter of from about nanometers to about 10,000 nanometers, and the core has polymer chains with living ends; adding a stabilizer to stabilize the seed and prevent the seed from precipitating out of solution; and grafting a shell species onto the living ends of the core to form the shell of the nanoparticle. A core-first synthesized nanoparticle, along with a rubber composition and tire product are also provided.Type: GrantFiled: December 29, 2009Date of Patent: September 30, 2014Assignee: Bridgestone CorporationInventors: Yaohong Chen, Mindaugas Rackaitis, Xiaorong Wang, Hideki Kitano
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Patent number: 8841385Abstract: The present invention provides a method of preparing a polymer particle. More precisely, the invention provides a polymer particle having optimum impact strength and improved elastic recovery rate by forming the brush having softness on the surface of the monodisperse polymer particle by the anion dispersion polymerization using a conjugated diene monomer.Type: GrantFiled: March 8, 2013Date of Patent: September 23, 2014Assignee: LG Chem, Ltd.Inventors: Bo-ryeong Han, Moon-seok Chun, Do-yeon Park, Su-kyung Kim, Chong-min Koo, Bum-jae Lee, Choel-han Gang
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Patent number: 8829081Abstract: A method of preparing core-shell submicron spheres is disclosed. The method comprises steps hereafter. An emulsion containing a core monomer is heated to a temperature of 10° C. below its boiling point to the boiling point. A core forming step is performed by adding an initiator solution to the heated emulsion to form cores by polymerizing the core monomer. When the conversion of the above polymerization is 10% to 95%, a shell forming step is performed by adding a shell monomer into the emulsion, at a temperature of 50° C. below the emulsion's boiling point to the boiling point thereof, to form shells, respectively surrounding the cores, by polymerizing the shell monomer.Type: GrantFiled: March 22, 2012Date of Patent: September 9, 2014Assignee: National Central UniversityInventors: Hui Chen, Ming-Yu Lo, Yu-Cheng Kuo
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Patent number: 8816008Abstract: The invention relates to an impact modified thermoplastic resin comprising a polymeric impact modifier with a core-shell structure comprising 2-octylacrylate.Type: GrantFiled: September 20, 2011Date of Patent: August 26, 2014Assignee: Arkema FranceInventors: Rosangela Pirri, Stephane Girois, Pascale Dargelos, Magali Bergeret-Richaud
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Patent number: 8779051Abstract: The instant invention provides a thermoplastic composition, method of producing the same, and articles made therefrom. The thermoplastic composition according to present invention comprises the melt blending product of: (a) from 10 to 75 percent by weight of a continuous phase, based on the total weight of the thermoplastic composition, wherein said continuous phase comprises one or more thermoplastic polymers; and (b) from 25 to 90 percent by weight of a dispersed phase comprising one or more core/shell polymer particles, based on the total weight of the thermoplastic composition, wherein said one or more core/shell polymer particles comprise a crosslinked elastomer core and a thermoplastic shell and wherein said core/shell polymer has an average particle size diameter in the range of from 70 to 10,000 nm.Type: GrantFiled: July 6, 2011Date of Patent: July 15, 2014Assignees: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Srdjan Kisin, Eric G. Lundquist, Timothy E. Clayfield, Yannick Saint-Gerard, Veera Nelliappan
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Patent number: 8758655Abstract: The present invention provides an optical film and a retardation film that each include an acryl resin, and 20 to 65 parts by weight of a graft copolymer including a conjugated diene rubber based on 100 parts by weight of the acryl resin, and an electronic device including the same.Type: GrantFiled: September 17, 2008Date of Patent: June 24, 2014Assignee: LG Chem, Ltd.Inventors: Byoung-Il Kang, Chan-Hong Lee, Chang-Hun Han
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Patent number: 8741985Abstract: A resin composition for sealers as well as a resin composition for sealers and a paint composition for sealers that contains the resin composition for sealers are useful for sealers to be used with such inorganic building materials as ceramic-based building materials. The resin emulsion for sealers is a resin emulsion which contains emulsion particles having an inner layer and an outer layer. The inner layer is formed with a polymer which is formulated by means of emulsion polymerization of a monomer component containing styrene and a monomer other than the styrene, and the outer layer is formed with a polymer which is formulated by means of emulsion polymerization of a monomer component containing a carboxyl-group-containing monomer and a monomer other than the carboxyl-group-containing monomer.Type: GrantFiled: November 25, 2009Date of Patent: June 3, 2014Assignee: Nippon Shokubai Co., Ltd.Inventors: Kanji Nakao, Keiichi Nakamoto
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Patent number: 8697775Abstract: Provided is a polymer nanoparticle comprising a core and a vulcanizable shell, wherein the core has a glass transition temperature (Tg) of at least about 150° C. Also provided is a method of preparing polymer nanoparticles with a core and a vulcanizable shell, comprising (a) in a liquid hydrocarbon medium, polymerizing conjugated diene monomers to produce a poly(conjugated diene) block and (b) copolymerizing the poly(conjugated diene) block with a mixture of mono-vinyl aromatic monomers and multiple-vinyl aromatic monomers to produce an aromatic block, wherein the core has a Tg of at least about 150° C. Also provided is a composition comprising (a) a rubber matrix; and (b) a polymer nanoparticle including a core and a vulcanizable shell; wherein the Tg of the core is at least about 150° C.Type: GrantFiled: December 20, 2006Date of Patent: April 15, 2014Assignee: Bridgestone CorporationInventors: James E. Hall, Sandra Warren, Alberto Scurati, Xiaorong Wang
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Patent number: 8680201Abstract: The present invention relates to a compounding method for producing impact-modified thermoplastic compositions with a low content of volatile organic compounds (hereinafter VOCs), wherein relatively inexpensive polymer raw materials with a comparatively elevated initial VOC content may be used, resulting in lowered production costs for producing such VOC-reduced polymer compositions.Type: GrantFiled: February 18, 2010Date of Patent: March 25, 2014Assignee: Bayer Materialscience AGInventors: Andreas Seidel, Hans-Jürgen Thiem
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Patent number: 8680180Abstract: An epoxy resin composition comprises an epoxy resin (A) and rubber-like polymer particles (B). The rubber-like polymer particles (B) maintain a finely dispersed state of primary particles. The content of the rubber-like polymer particles (B) is 0.5 to 80% by weight when the total amount of the epoxy resin (A) and rubber-like polymer particles (B) is 100% by weight. Rubber-like polymer particles (B) are obtainable by graft-polymerizing 5 to 50% by weight of a shell layer (B-2) with 50 to 95% by weight of a rubber particle core (B-1), and average particle diameter of the rubber-like polymer particles (B) is 0.03 to 2 ?m. Rubber particle core (B-1) comprises elastic material of not less than 50% by weight of at least one monomer selected from diene monomers and (meth)acrylate monomers and less than 50% by weight of another coploymerizable vinyl monomer, or polysiloxane rubber elastic materials, or a mixture thereof.Type: GrantFiled: February 13, 2012Date of Patent: March 25, 2014Assignee: Kaneka CorporationInventors: Katsumi Yamaguchi, Masakuni Ueno, Masahiro Miyamoto
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Patent number: 8653192Abstract: A method for manufacturing a thermoplastic composition including: a polyester resin (c); a mixture including a copolymer (a) of an ?-olefin and of a monomer having an ethylenic unsaturation and an epoxy function, as well as a core-shell compound (b); characterized in that said method includes a first step of manufacture the mixture of (a) and (b) by extrusion at a temperature at which the copolymer (a) is in the molten state and at a maximum temperature of 60 to 180° C.; a second step of manufacturing the thermoplastic composition by extrusion or by mixing the polyester resin (c) with the mixture of (a) and (b) produced in the first step.Type: GrantFiled: July 13, 2010Date of Patent: February 18, 2014Assignee: Arkema FranceInventors: Sebastien Quinebeche, Alexander Korzhenko, Alain Bouilloux, Stephane Girois
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Patent number: 8648148Abstract: Disclosed is a mass polymerized rubber-modified monovinylidene aromatic copolymer composition with an excellent balance of aesthetic, physical and mechanical properties, in particular good impact with low consistent gloss across an injection molded textured part, and a method for preparing such a composition.Type: GrantFiled: October 5, 2006Date of Patent: February 11, 2014Assignee: Styron Europe GmbHInventors: Nigel A. Shields, Dominique Maes, Mary Ann Jones, Thomas D. Traugott
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Patent number: 8642700Abstract: A thermoplastic composition suitable for making articles having low gloss and good impact resistance at low temperatures is disclosed. The composition contains (A) 10 to 90 percent relative to the weight of the composition (pbw) of an aromatic (co)poly(ester)carbonate, (B) 10 to 90 pbw of first graft (co)polymer containing a graft base selected from the group consisting of polyurethane, ethylene vinyl acetate, silicone, ethylene-propylene diene rubbers, ethylene propylene rubbers, acrylate rubbers, diene rubbers, and polychloroprene, and a grafted phase, (C) 1 to 20 pbw of a linear glycidyl ester functional polymer comprising repeating units derived from one or more glycidyl ester monomers and (D) 1 to 20 pbw of a second graft (co)polymer containing a core and shell wherein the core contains an interpenetrated network of poly(meth)alkyl acrylate and polyorganosiloxane, and wherein the shell contains poly(meth)acrylate.Type: GrantFiled: November 3, 2006Date of Patent: February 4, 2014Assignee: Bayer MaterialScience LLCInventors: Marina Rogunova, James P. Mason, Xiangyang Li
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Patent number: 8637144Abstract: A process for the polymerization of a true tetrafluoroethylene (TFE) copolymer of the fine powder type is provided, wherein the copolymer contains polymerized comonomer units of at least one comonomer other than TFE in concentrations of at least or exceeding 1.0 weight percent, and which can exceed 5.0 weight percent, wherein the copolymer is expandable, that is, the copolymer may be expanded to produce strong, useful, expanded TFE copolymeric articles having a microstructure of nodes interconnected by fibrils.Type: GrantFiled: October 4, 2007Date of Patent: January 28, 2014Assignee: W. L. Gore & Associates, Inc.Inventor: Lawrence A. Ford
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Patent number: 8628852Abstract: Disclosed are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a resin (a) which is a polyurethane resin and a core layer (Q) comprising a resin (b). A core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the content of vinyl resins in the resin (b) is not more than 30 weight %. Such resin particles have a uniform particle diameter and are excellent in electrostatic properties, thermal and storage stability and thermal characteristics.Type: GrantFiled: July 27, 2006Date of Patent: January 14, 2014Assignee: Sanyo Chemical Industries Ltd.Inventors: Takashi Akutagawa, Tsuyoshi Izumi
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Patent number: 8580896Abstract: A process for preparing a fluorine-containing polymer which includes a first step for preparing a dispersion of fluorine-containing emulsified particles (A) having ionic functional groups where a fluorine-containing monomer mixture (i) is polymerized by using a water soluble radical polymerization initiator (a) without addition of an emulsifying agent, and a second step for preparing a fluorine-containing polymer (b) having a small amount of ionic functional groups where fluorine-containing monomers (ii) are emulsion-polymerized by using a radical polymerization initiator (b) in the presence of the fluorine-containing emulsified particles (A) having ionic functional groups without addition of an emulsifying agent.Type: GrantFiled: May 9, 2007Date of Patent: November 12, 2013Assignee: Daikin Industries, Ltd.Inventors: Mitsuru Kishine, Masanori Kitaichi, Daisuke Ota, Masahiko Oka
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Patent number: 8575274Abstract: The present invention relates to bone cements and, more particularly, to multi-solution bone cements and methods for making the same. An embodiment of the present invention provides multi-solution bone cements which include cross-linked PMMA beads, thereby providing for a significant increase in the polymer-to-monomer (P:M) ratio. Another embodiment of the present invention provides cross-linked PMMA beads which are surface modified with unsaturated carbon double bonds. A further embodiment of the present invention provides multi-solution bone cements made with PMMA-PMMA spherical brush polymers.Type: GrantFiled: July 17, 2007Date of Patent: November 5, 2013Assignee: Syracuse UniversityInventors: Julie M. Hasenwinkel, Imad K. Merkhan, Jeremy L. Gilbert
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Patent number: 8513355Abstract: Disclosed is a graft copolymer highly improving the adhesion resistance and impact strength, a method of preparing the same, and PVC composition containing the same, wherein the graft copolymer comprises i) 55 to 85 wt % of a conjugated diene-based rubber core; and ii) 15 to 45 wt % of a graft shell surrounding the rubber core, and formed by comprising a (meth)acrylate-based monomer, and at least one selected from the group consisting of a vinyl-based monomer having a polyalkylene oxide group represented by the following Formula 1; in which the graft copolymer includes 0.1 to 5 wt % of the vinyl-based monomer having the polyalkylene oxide group represented by the following Formula 1: wherein R is independently hydrogen, or C1 to C4 alkyl group, and n is independently 3 to 14.Type: GrantFiled: August 27, 2010Date of Patent: August 20, 2013Assignee: LG Chem, Ltd.Inventors: Yoon Ho Kim, Geon Soo Kim, Yeon Hwa Wi, Ki Hyun Yoo, Chan Hong Lee