Abstract: The disclosure describes the preparation and use of reactive carbonates containing a metal carbonate bound to a reactive compound, wherein the reactive compound comprises a mineral binding group and a polymer reactive group connected together by a linking group. Such reactive carbonates are useful as reagents in processes for making mineral-bound elastomeric materials, and in methods for reducing cavitation in elastomer materials.
Type:
Grant
Filed:
October 10, 2018
Date of Patent:
June 6, 2023
Assignee:
Imerys USA, Inc.
Inventors:
Douglas Wicks, Kalena Stovall, Sang Jin Park, Virenda Singh
Abstract: A method of forming a multimodal Polyalkylene Terephthalate (PAT) can include: providing a feed of a low molecular weight (LMW) PAT, the LMW PAT having a low average molecular weight; providing a feed of high molecular weight (HMW) PAT, the HMW PAT having a high average molecular weight, wherein the low average molecular weight is lower than the high average molecular weight; mixing the feed of LMW PAT with the feed of HMW PAT in a mixer to form a multimodal PAT; and providing the multimodal PAT as output. The multimodal PAT can include: a low average molecular weight of a low molecular weight (LMW) PAT; and a high average molecular weight of a high molecular weight (HMW) PAT mixed with the LMW PAT to form the multimodal PAT, wherein the multimodal PAT is devoid of talc.
Abstract: Methods of post-polymerization modification of a polymer are provided herein. The present methods comprise the step of reacting a polymer with at least one nucleophile in a nucleophilic substitution reaction performed without a solvent to produce a functionalized polymer. The nucleophile can be selected from the group consisting of thioacetate, phenoxide, alkoxide, carboxylate, thiolate, thiocarboxylate, dithiocarboxylate, thiourea, thiocarbamate, dithiocarbamate, xanthate, thiocyanate. Nucleophilic substitution reaction can be performed in the presence of a phase transfer catalyst. Nucleophilic substitution reaction can also be performed via a two-step in-situ reactive mixing process with the initial formation of the polymer-amine ionomer (polymer-NR3+Br) which catalyzes the subsequent nucleophilic substitution with a second nucleophile to form a bi-functional polymer.
Type:
Grant
Filed:
March 29, 2019
Date of Patent:
May 16, 2023
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Paul Tu Quang Nguyen, David J. Freas, Tu N. Pham, Yuan-Ju Chen, Edward J. Blok, Anthony J. Dias
Abstract: Methods for forming polyolefin nanocomposite precursor compositions are provided. In embodiments, such a method comprises mixing a polyolefin, unmodified graphite, and a peroxide crosslinker via solid-state shear pulverization under conditions to form a polyolefin nanocomposite precursor composition comprising the polyolefin; exfoliated, unmodified graphite dispersed throughout the polyolefin; and unreacted peroxide crosslinker dispersed throughout the polyolefin, wherein the polyolefin is polyethylene, a copolymer of polyethylene, or combinations thereof. Methods of forming crosslinked polyolefin nanocomposites, the polyolefin nanocomposite precursor compositions, and crosslinked polyolefin nanocomposites are also provided.
Abstract: A nitrile group-containing copolymer rubber including 10 to 60 wt % of an ?,?-ethylenically unsaturated nitrile monomer unit and 1 to 60 wt % of an ?,?-ethylenically unsaturated dicarboxylic acid monoester monomer unit, and having an iodine value of 120 or less, wherein a processability index Ipro (Ipro=CC×SA) is 0.0030 or less, where the processability index Ipro is the product of the carboxyl group content CC, which is the number of moles of carboxyl groups per 100 g of nitrile group-containing copolymer rubber, and the absorbance area SA of a carboxylic anhydride group determined by infrared spectroscopy.
Abstract: The super absorbent polymer comprises: a base polymer powder including a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second crosslinked polymer in which the first crosslinked polymer is further crosslinked via a surface crosslinking agent, wherein the super absorbent polymer has: a fixed height absorption (FHA) of 22.5 g/g to 29 g/g, a saline flow conductivity (SFC) of 35 (·10?7 cm3·s/g) or more, and T-20 of 180 seconds or less.
Type:
Grant
Filed:
March 15, 2021
Date of Patent:
April 25, 2023
Inventors:
Tae Bin Ahn, Dong Hyun Kim, Yeon Soo Kim, Hyun Sup Lee, Chang Sun Han, Myung Han Lee
Abstract: The present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers. In particular, the present invention relates to a polymer composition comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and styrene monomers, said composition having particularly advantageous compromises of heat-resistant, fluidity, scratch-resistant and chemical-resistant properties. The present invention also relates to a molded or extruded object comprising a polymer comprising methyl methacrylate, (meth)acrylic acid and of styrene monomers, and the use of these objects.
Abstract: Disclosed is preparation of a freestanding ion gel having high stability and high ionic conductivity based on surface-activity ionic liquids. Further, disclosed is a solid electrolyte using the ion gel. A method for preparing the freestanding ion gel include mixing a surface-activity ionic liquid having an alkyl group having 8 or greater carbon atoms, a crosslinking agent, water and oil with each other to form a bicontinuous microemulsion mixture; ii) adding an initiator to the mixture; and iii) curing the mixture using ultraviolet (UV) or thermal energy to form a freestanding ion gel.
Type:
Grant
Filed:
August 19, 2020
Date of Patent:
April 11, 2023
Assignees:
Research & Business Foundation Sungkyunkwan University, Kunsan National University Industry-University Cooperation Foundation
Inventors:
Gi Ra Yi, Min Jae Lee, Tae Hui Kang, Yeon Ho Ahn, Duk Joon Kim
Abstract: This invention relates to a process for forming an azide-grafted polymer. The process comprises mixing a free-radical-reactive polymer with a free-radical initiator and an azide monomer that contains at least one unsaturated C?C bond capable of reacting with a radical, under solid-state grafting conditions, to form an azide-grafted polymer. The formed azide-grafted polymer can be used to prepare a long-chain branched or cross-linked polymer.
Abstract: A method for preparing a super absorbent polymer and a superabsorbent polymer prepared from the same are disclosed herein. In some embodiments, a method includes mixing super absorbent polymer particles, water and an additive form a hydrated super absorbent polymer, wherein the super absorbent polymer particles comprise a base polymer powder including a cross-linked polymer polymerized from a water-soluble ethylenically unsaturated monomer having an acidic group of which at least a part is neutralized, and a surface cross-linked layer formed on the base polymer powder, wherein the surface cross-linked layer is formed by further cross-linking the cross-linked polymer, and wherein the additive including a polyoxyalkylene aliphatic hydrocarbon ether carboxylic acid. The method can appropriately control the water content of the super absorbent polymer by water-addition or the like to suppress crushing or the like during transfer, and also can suppress deterioration of physical properties.
Type:
Grant
Filed:
August 11, 2020
Date of Patent:
March 28, 2023
Inventors:
Kyu Pal Kim, Ui Seok Chung, Gyunhyeok Ahn, Gicheul Kim
Abstract: An acrylic rubber composition comprising 0.05 to 3.0 parts by weight of a fluorine-containing compound having a melting point of 30 to 100° C., based on 100 parts by weight of acrylic rubber. The acrylic rubber composition that can improve the dispersibility of a processing aid in the compound and the rubber compound handling properties during open roll operation without using a silicone-based processing aid, which causes bleeding of vulcanizates, and that satisfies the various characteristics, such as dimensional stability and heat resistance, of vulcanizates.
Abstract: Coating compositions and coatings with improved soiling resistance and (self-)cleaning properties are disclosed. The coating compositions and coatings may be nonaqueous coating compositions and may include at least one hydroxyl group-containing compound, at least one isocyanate group-containing compound having free or blocked isocyanate and silane groups, at least one catalyst for the crosslinking of the silane groups, and at least one alkoxysilyl-functional siloxane.
Type:
Grant
Filed:
May 18, 2017
Date of Patent:
March 7, 2023
Assignee:
BASF Coatings GmbH
Inventors:
Christian Weiher, Berthold Austrup, Andreas Janssen
Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural. Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.
Type:
Grant
Filed:
February 4, 2021
Date of Patent:
March 7, 2023
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Dong Won Hwang, Young Kyu Hwang, Ma Eum Lee, Pravin Pandharinath Upare, Do Young Hong
Abstract: Disclosed are solvent cement formulations having beneficial stability and performance characteristics that include a thermoplastic resin, one or more organic solvents, an inhibitor of an oxidation-reduction reaction, and a heat stabilizer.
Abstract: Described herein is curable composition comprising a partially halogenated elastomeric gum comprising a plurality of cure sites selected from at least one of iodine, bromine, and nitrile; a silicon-containing compound; a dehydrohalogenation agent; and a peroxide cure system. Upon curing, a silicon-containing superficial layer forms, which can provide good chemical stability, increased durability, non-tackiness, and a matte finish to the cured elastomer.
Type:
Grant
Filed:
December 19, 2018
Date of Patent:
March 7, 2023
Assignee:
3M Innovative Properties Company
Inventors:
Tatsuo Fukushi, Tho Q. Nguyen, Allen M. Sohlo
Abstract: Provided herein are methods and systems for at least partially deactivating at least one component of a reactor effluent from gas phase polyolefin polymerization processes utilizing at least one glycol.
Type:
Grant
Filed:
October 26, 2018
Date of Patent:
February 28, 2023
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Chi-I Kuo, Bruce J. Savatsky, Micah A. McClure, Kevin M. Ferreira, Charles J. Harlan, Valerie H. Markham
Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 100 to 190° C.
Type:
Grant
Filed:
June 26, 2020
Date of Patent:
February 28, 2023
Assignee:
BASF SE
Inventors:
Stephan Bauer, Tina Mark, Lydia König, Yvonne Hagen, Thomas Daniel