Abstract: The invention relates to blends containing polymers of vinylidene fluoride, having low ductile-brittle transition temperatures and having excellent low temperature impact properties while maintaining the positive aspects of unmodified vinylidene fluoride-containing polymers. The blends of this invention are produced by adding a core-shell impact modifier (CSIM) comprised of a polysiloxane core and a shell compatible with vinylidene fluoride-containing polymer. The blends are further characterized by the presence of a heterogeneous copolymer composition comprised of two or more distinct phases and/or at least one flame and smoke suppressant. The preparation of these new blends can be done by conventional thermoplastic compounding techniques such as twin screw compounding; alternatively, the CSIM can be introduced earlier, such as in the latex.
Type:
Grant
Filed:
March 10, 2016
Date of Patent:
September 15, 2020
Assignee:
Arkema Inc.
Inventors:
Saeid Zerafati, Ramin Amin-Sanayei, James J. Henry, Gregory S. O'Brien
Abstract: The crosslinked polyethylene composition according to the present invention is characterized in that the migration of additives is inhibited due to low oil content of low density polyethylene, and thus, when preparing crosslinked polyethylene using the same, stable extrusion property is exhibited, thus reducing exterior deviation of the crosslinked polyethylene.
Type:
Grant
Filed:
October 30, 2017
Date of Patent:
September 15, 2020
Assignee:
LG Chem, Ltd.
Inventors:
Ka Ram Sun, In Gyu Park, Youn Sun Nam, Young Il Song
Abstract: The present invention provides a modified polyolefin resin that can form a coating that exhibits excellent adhesion to a low-polarity base material, especially a poorly adherable polyolefin base material with no surface treatment even when being dried at low temperatures and has flexibility (bendability). Provided is a modified polyolefin resin that is a modified product of a polyolefin resin having a melting point (Tm) by a differential scanning calorimeter (DSC) of 60 to 165° C. with a modifier comprising the following (A): (A) a monomer mixture comprising Monomer Group (A-1) and Monomer Group (A-2) with a weight ratio of Monomer Group (A-1) to Monomer Group (A-2) ((A-1)/(A-2)) of 30/70 to 50/50.
Abstract: Bimodal polypropylene compositions and a process to form melt blended bimodal polypropylene compositions comprising combining at least two polypropylenes in at least a two-pass process, and forming a bimodal polypropylene composition having a Flexural Modulus (190° C., 1% secant) of at least 1700 MPa, as well as one or more other selected properties. These compositions are suitable for thermoformed articles and injection molded articles, any of which may be foamed.
Type:
Grant
Filed:
August 4, 2015
Date of Patent:
September 8, 2020
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Rohan A. Hule, Sudhin Datta, Yi Ping Ni
Abstract: Provided is a tire comprising a tread composed of a rubber composition, the rubber composition comprising 21 to 100 parts by mass of a liquid styrene butadiene rubber having a styrene content of 40 to 60% by mass and a weight average molecular weight of 4000 to 20000, based on 100 parts by mass of a rubber component comprising a linear styrene butadiene rubber having a styrene content of 35 to 45% by mass, a vinyl content of 35 to 45% by mass, and a weight average molecular weight of 1,000,000 to 1,400,000.
Abstract: Grafted polyethylene polymers and copolymers are reactively extruded to achieve enhanced rheological properties. The utilization of an oligomeric or polymeric wax in the reactive extrusion process with functionalized agents, results in improved rheological characteristics of the grafted polymer.
Type:
Grant
Filed:
August 16, 2017
Date of Patent:
August 18, 2020
Assignee:
SACO AEI POLMERS, INC.
Inventors:
Jeffrey Jacob Cernohous, David Geraint Roberts, Neil R. Granlund
Abstract: Provided is an EVOH resin pellet which is capable of reducing the occurrence of fish eyes in a melt molded article of an EVOH resin. The occurrence of fish eyes in a melt molded article such as a film that is produced by melt molding using pellets is able to be suppressed by setting the abundance of a conjugated polyene in a surface portion of the pellet to an intended amount or more.
Type:
Grant
Filed:
October 27, 2016
Date of Patent:
August 11, 2020
Assignee:
MITSUBISHI CHEMICAL CORPORATION
Inventors:
Ryuta Seno, Shinichi Hori, Nobuaki Sato
Abstract: A molded article formed from a polymer composition, the polymer composition consisting essentially of: an ethylene homopolymer or ethylene/alpha-olefin copolymer; greater than 20 ppm of a fluoropolymer; and optionally, up to 5 wt. % of one or more of processing aids, acid neutralizers, stabilizers, phosphites, antioxidants, metal de-activators, pigments or colorants, or fillers; wherein the molded article exhibits an oxygen transmission rate [OTR, (cc*mm)/(m2*day*atm)]??3181 (cc2*mm)/g*m2*day*atm)×[Density, g/cc]+3077, (cc*mm)/(m2*day*atm).
Type:
Grant
Filed:
April 23, 2018
Date of Patent:
August 11, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Keran Lu, Yijian Lin, Todd O. Pangburn, Siddharth Ram Athreya, Laura Nunez, John L. Sugden, Todd A. Hogan, Andrew Heitsch, David T. Gillespie
Abstract: Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index.
Type:
Grant
Filed:
July 16, 2018
Date of Patent:
August 11, 2020
Assignee:
Westlake Longview Corporation
Inventors:
John H. Brindle, Jr., Richard K. Stuart, Jr., James H. Scott, David B. Conner, Kevin J. Taylor, Scott T. Trochim
Abstract: The present invention relates to a water-absorbing polymer and to a process for preparation, including finishing the water-absorbing polymer, with 0.0001 to 3% by weight, of a peroxo compound, based on the acrylic acid, after the polymerization is treated, and to a process for producing a hydrogel polymer, to the product of the process and to use.
Abstract: The present invention provides a rubber composition which has excellent processability owing to its low rubber viscosity during kneading, despite containing a white filler, and which further has excellent fuel economy and excellent abrasion resistance. Also provided is a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition including: a rubber component, a white filler, and a compound represented by the formula (1) below, wherein X represents —CONH— or —COO—; R1 represents a C7-C23 alkyl group or a C7-C23 alkenyl group; R2 represents a C1-C3 alkylene group; and R3 and R4 each independently represent a hydrogen atom, a C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group, and at least one of R3 or R4 is the hydroxyalkyl group.
Abstract: The invention provides a class of block copolymers having a plurality of chemically different blocks, at least a portion of which incorporating polymer side chain groups having a helical secondary structure. The invention also provides structures generated by self-assembly of polymer blends including at least one block copolymer component, such as a brush block polymer or wedge-type block polymer. The invention provides, for example, periodic nanostructures and microstructures generated by self-assembly of block copolymers and polymer blends comprising a mixture of at least one block copolymer component, such as a brush block copolymer, and at least a second component.
Type:
Grant
Filed:
August 22, 2016
Date of Patent:
August 4, 2020
Assignee:
California Institute of Technology
Inventors:
Garret M. Miyake, Raymond Weitekamp, Robert H. Grubbs, Victoria Piunova
Abstract: Modified polyolefin particles are obtained by grafting a monomer having an ethylenically unsaturated group and a polar functional group in the same molecule to a polymer including one, or two or more specific ?-olefins and having a specific melting point, the modified polyolefin particles satisfying the following requirements (1) to (3): (1) the amount of grafting x by the monomer is not less than 0.5 wt % and not more than 20 wt %; (2) the x (wt %) and the intrinsic viscosity [?] (dl/g) measured in decalin at 135° C. satisfy the relation: log10[?]?0.1?0.15x; and (3) the particles have a gel content of less than 1 wt %.
Abstract: A block copolymer, an ion-exchange membrane including the block copolymer and a method of preparing the block copolymer are provided. The block copolymer may include a hydrophobic repeating unit and a hydrophilic repeating unit.
Type:
Grant
Filed:
April 18, 2017
Date of Patent:
July 21, 2020
Assignee:
KOREA INSTITUTE OF ENERGY RESEARCH
Inventors:
Byungchan Bae, Sung-Dae Yim, Chang-Soo Kim, Won-Yong Lee, Gu-Gon Park, Tae-Hyun Yang, Seok-Hee Park, Minjin Kim, Young-Jun Sohn, Seung-Gon Kim, Dong Won Shin, Adam Febriy-Anto Nugraha
Abstract: The present invention relates to a composition for preparing a SAN copolymer, a SAN copolymer, a preparation method therefor, a heat-resistant ABS resin blend comprising the same, and heat-resistant ABS pellets. Specifically, the present invention provides a composition for preparing a SAN copolymer, the composition comprising a monomer mixture, and ethylene glycol dimethacrylate as a chain extender, wherein the monomer mixture comprises 60 to 75 wt % of an ?-methylstyrene monomer and 25 to 40 wt % of an acrylonitrile-based monomer based on the total weight of the monomer mixture; and the ethylene glycol dimethacrylate is contained in an amount of 0.001 to 0.15 parts by weight based on 100 parts by weight of the monomer mixture.
Type:
Grant
Filed:
November 16, 2017
Date of Patent:
July 21, 2020
Assignee:
LG CHEM, LTD.
Inventors:
Gyu Sun Kim, Chang Hun Han, Dae Woo Lee, Jae Bum Seo, Jung Tae Park, Eun Jung Choi, Byoung Il Kang, Da Eun Sung
Abstract: A method of making a branched polymer comprising (C?C)—(C?C)—CO groups is provided. The method comprises: (i) Providing, in admixture, at least one monofunctional monomer comprising one polymerisable carbon-carbon double bond per monomer, at least one multifunctional monomer comprising at least two polymerisable carbon-carbon double bonds per monomer, at least one chain transfer agent comprising a carbonyl group; (ii) Forming a polymer from the mixture; and (iii) Hydrolysing the polymer. A branched polymer is further provided.
Type:
Grant
Filed:
March 27, 2015
Date of Patent:
July 14, 2020
Assignee:
SYNTHOMER (UK) LIMITED
Inventors:
Peter Shaw, Jon Batty, Virginie Chabrol, Monika Farrell, Lena Sambe
Abstract: Crosslinkable interpolymer blends comprising ethylene monomer residues, residues of comonomers having carboxylic acid and/or carboxylic acid anhydride functionality, and residues of comonomers having epoxide functionality, a peroxide initiator, and optionally a crosslinking catalyst, which, in embodiments, cure to a gel content of greater than (>) 50 wt % within less than 1.5 minutes at 200˜C, and require little or no degassing after crosslinking.
Type:
Grant
Filed:
June 29, 2015
Date of Patent:
July 7, 2020
Assignee:
Dow Global Technologies LLC
Inventors:
Dakai Ren, Kyoung moo Koh, Thomas H. Peterson, Tanya N Singh-Rachford, Mark A. Rickard, Jeffrey M. Cogen, Yabin Sun
Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.
Type:
Grant
Filed:
September 30, 2015
Date of Patent:
July 7, 2020
Assignee:
LG Chem, Ltd.
Inventors:
Jeong Kyu Lee, Sung Joon Oh, Yeon Joo Kang, Jung Keun Kim, In Young Song, Sung Soo Yoon
Abstract: The invention is directed to a composition comprising 90.00 to 99.95 wt % of a polyolefin and 0.05 to 10.00 weight % of an antimicrobial additive based on the total weight of the polyolefin composition wherein the antimicrobial additive comprises a phenolic group and wherein a carrier for the antimicrobial additive is present. The antimicrobial additive may be dispersed through the polyolefin composition. Preferred antimicrobial additives include for example eugenol, isoeugenol, thymol, carvacrol, sesamol, curcumin, p-hydroxybenzoic acid, gallic acid and its ester derivatives (propyl gallate, octyl gallate and dodecyl gallate), ferulic acid, syringic acid, coumaric acid, protocatechuic acid, caffeic acid and/or tannic acid.
Type:
Grant
Filed:
July 21, 2016
Date of Patent:
June 30, 2020
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V.
Inventors:
Jerome Vachon, Mark Johannes Boerakker, AT Kavya, Ajay Kumar Taraiya, Satishkumar Mahanth, Roshan Kumar Jha
Abstract: The invention is directed to bimodal polyethylene having a flow ratio FRR ranging between ?30 and ?40, a density ranging between ?949.0 and ?952.0 kg/m3, an MFR190/5 ranging between ?0.1 and ?0.2 g/10 min and comprising from 50 to 54% by weight of an ethylene homopolymer A and from 46-50% by weight of an ethylene-butene copolymer B, where all percentages are based on the total weight of the composition and wherein ethylene homopolymer A has a viscosity number ?70 and ?100 cm3/g and a density between ?968 and ?972 kg/m3. The polyethylene is suitable to be applied in the production of pipes.
Type:
Grant
Filed:
June 30, 2016
Date of Patent:
June 30, 2020
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V.
Inventors:
Priya Garg, Nicolaas Hendrika Friederichs, Tom Schoffelen