Abstract: A polydifluoroacetylene containing a C?C bond and a C—F bond, the polydifluoroacetylene having a solubility of 0.2 g/10 g or less in dimethylformamide (DMF) at 25° C. Also disclosed is a method for producing the polydifluoroacetylene, a precursor polymer for providing the polydifluoroacetylene, a molded article including the polydifluoroacetylene and a polydifluoroacetylene powder.
Abstract: The present invention relates to a process for preparing a polyester (meth)acrylate resin (I), said process comprising the steps of: (a) Reacting a thermoplastic polyester with (a1) at least one polyhydric alcohol and, optionally, with (a2) at least one triglyceride, wherein the molar ratio of triglyceride to thermoplastic polyester is between 0 and 0.3, and the molar ratio of polyhydric alcohol to thermoplastic polyester is at most 1.9 to obtain a depolymerization product A that has a hydroxyl number within the range of from 200 to 800 mg KOH/g; (b) Reacting the depolymerization product A with (b1) at least one fatty acid and/or (b2) at least one polybasic carboxylic acid and, optionally, with (b3) at least one polyhydric alcohol to provide a polyester polyol B; (c) Reacting the polyester polyol B with (c) at least one (meth)acrylating compound to provide a (meth)acrylated compound (I), wherein the weight ratio of fatty acid (b1) to the depolymerization product A is between 0 and 0.
Type:
Grant
Filed:
January 28, 2021
Date of Patent:
March 8, 2022
Assignee:
ALLNEX BELGIUM S.A.
Inventors:
Hugues Van Den Bergen, Paul Gevaert, Stephan Peeters
Abstract: A composition capable of substituting the use of styrene-acrylonitrile copolymer POP, comprising polyether polyol A having a hydroxyl value of 100-1000 mgKOH/g and a functionality of 4-8, and a polymer polyol having a hydroxyl value of 12-100 mgKOH/g, a functionality of 2-4, and a solid content of 4-45%, the branches thereof not containing polystyrene units. The polyurethane foam produced using the present composition to substitute the use of traditional styrene-acrylonitrile copolymer POP avoids the problem of styrene volatilisation due to the absence of styrene, and the produced polyurethane foam also maintains equivalent or even superior physical properties compared to the polyurethane foam made from styrene-acrylonitrile copolymer POP in the prior art; thus, the present compound is fully capable of substituting traditional styrene-acrylonitrile copolymer POP for the production of environmentally friendly, high rebound, and block-shaped soft polyurethane foam materials.
Type:
Grant
Filed:
July 11, 2017
Date of Patent:
March 1, 2022
Assignees:
Jiahua Science & Technology Development (Shanghai) Ltd., Jiahua Chemicals Inc.
Abstract: A wax inhibitor composition, the composition having at least one alpha-olefin maleic anhydride copolymer of the formula: wherein R1 is selected from hydrocarbyl groups containing 10-30 carbon atoms, and R2 is selected from a hydrogen or hydrocarbyl groups containing 10-80 carbon atoms, and R2, if not hydrogen, is broadly dispersed, wherein R2 comprises a weight fraction of carbon numbers greater than 30, wherein R2 can be the same or different, and n is a number of repeating units ranging from 1 to 100.
Abstract: Described herein is a millable fluorinated block copolymer having (a) at least one A block, wherein the A block is a semi-crystalline segment comprising repeating divalent monomeric units derived from at least TFE, HFP and VDF; (b) at least one B block, wherein the B block is a segment comprising repeating divalent monomeric units derived from at least HFP and VDF; and (c) a bisolefin monomer, wherein at least (i) the semi-crystalline segment of the A block comprises repeating divalent monomeric units derived from TFE, HFP, VDF, and the bisolefin monomer, (ii) the segment of the B block comprises repeating divalent monomeric units derived from HFP, VDF, and the bisolefin monomer, or (iii) a combination thereof; and wherein the millable fluorinated block copolymer has a modulus of 0.1 to 2.5 MPa at 100° C.
Type:
Grant
Filed:
January 12, 2018
Date of Patent:
March 1, 2022
Assignee:
3M Innovative Properties Company
Inventors:
Michael H. Mitchell, Denis Duchesne, Tatsuo Fukushi, Larry A. Last, Peter J. Scott, Karl D. Weilandt
Abstract: A compound of the formula (III): wherein R21 is a hydrogen atom or an alkyl group; R22 is a hydrogen atom or an alkyl group; and R23 is a divalent organic group.
Type:
Grant
Filed:
January 2, 2020
Date of Patent:
February 22, 2022
Assignees:
DAIKIN INDUSTRIES, LTD., TOKYO INSTITUTE OF TECHNOLOGY
Abstract: A method of creating a modified heterophasic polyolefin composition is provided, whereby a polyolefin composition having at least two phases is melt mixed with a free radical generator, such as a peroxide, and a compatibilizing agent characterized by at least one nitroxide radical and at least one unsaturated bond capable of undergoing a radical addition reaction. Modified heterophasic polyolefin compositions with increased melt flow rates, impact strength, and clarity, which incorporate the compatibilizing agent, are also included within the scope of the invention.
Type:
Grant
Filed:
August 5, 2019
Date of Patent:
February 15, 2022
Assignee:
Milliken & Company
Inventors:
Joseph J. Peterson, Scott R. Trenor, Jason D. Sprinkle
Abstract: The present invention relates to a method for producing a copolymer of ethylene and an allyl monomer that is represented by formula (1) and has a polar group, or a copolymer of ethylene, the allyl monomer that is represented by formula (1) and has a polar group, and another monomer. This production method is characterized by using a metal complex, which is represented by general formula (C1), as a polymerization catalyst and by having a silane compound, which is represented by general formula (2) and has a silicon-hydrogen bond, coexist with the metal complex. (In the formulae, the symbols are as defined in the description.) According to the present invention, a copolymer of an allyl monomer that has a polar group is able to be produced with high catalytic activity, said copolymer being capable of having various applications.
Type:
Grant
Filed:
January 29, 2019
Date of Patent:
February 15, 2022
Assignees:
THE UNIVERSITY OF TOKYO, SHOWA DENKO K.K., JAPAN POLYETHYLENE CORPORATION
Abstract: The present invention relates to a process for the hydrogenation of the carbon-carbon double bonds in nitrile butadiene rubber which is present in latex form, this means as a suspension of nitrile butadiene rubber particles in an aqueous medium, using a hydrogenation catalyst in the presence of an emulsifier.
Abstract: The present invention is a modified resin for a molded article obtained by modifying an ionomer of an ethylene/unsaturated carboxylic acid copolymer with at least one guanidine compound selected from guanidine derivatives and salts thereof.
Abstract: A composition for use as a floor coating, the composition including an at least one polymer having a solids content, based on a total weight of the composition, an at least one resin having a solids content, based on a total weight of the composition, and an at least one plasticizer having a solids content, based a total weight of the composition. Further, the solids content of the at least one plasticizer to the solids content of the at least one polymer is between about 20% and about 25%, the solids content of the at least one polymer and the solids content of the at least one resin are in a ratio of about 25:1 to about 35:1, and the composition has a percent elongation of at least 100% and a tensile strength of at least 1000 psi, when applied to a surface.
Type:
Grant
Filed:
April 28, 2020
Date of Patent:
January 4, 2022
Assignee:
S. C. Johnson & Son, Inc.
Inventors:
Carmine Savaglio, Russell O. Carlsen, Teresa L. Cook
Abstract: The present invention relates to a modification polymerization initiator and a method for preparing the same, and the modification polymerization initiator includes a derived unit from a compound represented by Formula 1 and may include various functional groups in a molecule, and thus, may initiate polymerization reaction and introduce a functional group into a polymer chain at the same time.
Type:
Grant
Filed:
June 19, 2019
Date of Patent:
January 4, 2022
Inventors:
Dong Cheol Choe, Jae Hoon Choe, Jung Yong Lee, Hyeon Hui Kim, Jong Young Choi, Won Jae Lee
Abstract: The present invention relates to (halogenated) copolymer vulcanizates and the use thereof in devices such as seals, tank linings, o-rings or hoses which are in contact with liquid medium comprising oxymethylene ether.
Type:
Grant
Filed:
September 10, 2018
Date of Patent:
January 4, 2022
Assignees:
ARLANXEO CANADA INC., ARLANXEO DEUTSCHLAND GMBH
Abstract: A catalyst composition for selectively hydrogenating a conjugated diene polymer in a homogeneous system is provided, wherein the conjugated diene polymer comprises a conjugated diene monomer or a combination of a conjugated diene monomer and a vinyl aromatic monomer. The catalyst composition includes the catalyst components of (a) a titanium compound; (b) an organometallic compound; and (c) an oligomer containing a polyglycol segment. The hydrogenated polymer produced using the catalyst composition and the method thereof is also provided.
Abstract: The present invention relates to the use of Ru and Os carbene complexes with a hydroxamic acid (ester) function for the metathesis degradation of nitrile rubber (NBR). The invention further relates to a method for producing hydrogenated nitrile rubbers, by subjecting a nitrile rubber to a metathesis degradation in the presence of the said catalyst, and the degraded nitrile rubber obtained subsequently undergoes a hydrogenation, preferably in situ.
Abstract: A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated 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:
November 24, 2015
Date of Patent:
December 21, 2021
Assignee:
BASF SE
Inventors:
Tina Mark, Thomas Daniel, Erich Lutz, Stefan Molter, Anna Kowalski
Abstract: Disclosed are new precursors of recyclable cross-linked diene elastomers including chain-end units with furanyl groups, their use in the preparation of the recyclable elastomers and their process of preparation. Also disclosed are new recyclable cross-linked diene elastomers, their preparation process and their uses.
Type:
Grant
Filed:
March 29, 2018
Date of Patent:
December 21, 2021
Assignees:
UNIVERSITÉ DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Inventors:
Frédéric Peruch, Pierre Berto, Stéphane Grelier
Abstract: An organic peroxide composition is provided which is liquid or near liquid at 25° C. or a low melting solid and which includes at least one ethylenically unsaturated organic peroxide (i.e., an organic peroxide containing at least one carbon-carbon double bond) and at least one saturated organic peroxide. The organic peroxide composition may further include at least one mono- and/or poly-unsaturated compound and at least one free-radical trap. The organic peroxide can be blended into a polymer such as a powdered or granular polyethylene resin. This peroxide-containing polymer can be used in rotational molding, wherein the polymer is added to a mold which is heated in an oven with rotation, thereby melting the polymer and coating the inside of the mold.
Type:
Grant
Filed:
December 14, 2017
Date of Patent:
December 21, 2021
Assignee:
Arkema Inc.
Inventors:
Leonard H. Palys, Marina Despotopoulou, Peter R. Dluzneski