公开(公告)号：US11472908B2

公开(公告)日：2022-10-18

申请号：US16957479

申请日：2019-01-10

申请人： ZEON CORPORATION

发明人： Kentaro Hayasaka

IPC分类号： C08F236/14 ,  D06N3/00 ,  D06N3/10 ,  C08L13/02 ,  C08K5/00 ,  C08K13/02 ,  C08L9/04 ,  C08F236/12 ,  C08F236/06 ,  C08K3/06 ,  C08K3/22

摘要： A latex composition having a nitrile rubber containing an α,β-ethylenically unsaturated nitrile monomer unit and a conjugated diene monomer unit, wherein the nitrile rubber has a weight average molecular weight of 50,000 to 100,000, and the weight of methanol extractables in all solids present in the latex composition is 2 to 20 wt % based on the weight of all the solids.

公开(公告)号：US20220289886A1

公开(公告)日：2022-09-15

申请号：US17688950

申请日：2022-03-08

申请人： ENEOS MATERIALS CORPORATION

发明人： Toshimitsu KIKUCHI ,  Hirofumi SENGA ,  Tatsumoto NAKAHAMA ,  Takuya SANO ,  Takato FUKUMOTO ,  Yuto SAKAGAMI ,  Toshiyuki HAYAKAWA

IPC分类号： C08F236/14 ,  C09J7/30 ,  C09J153/02

摘要： Provided is a block copolymer containing 10 mass % or more of a polymer (A1) having a multi-branched structure having four or more polymer chains, the polymer chain having a polymer block A containing 70 mass % or more of a structural unit derived from a conjugated diene compound and a polymer block B containing 70 mass % or more of a structural unit derived from an aromatic vinyl compound, the block copolymer having a functional group F containing at least one element selected from the group consisting of nitrogen, silicon, oxygen, and sulfur in a part or all of terminals of the four or more polymer chains, and the block copolymer having a value α of 0.75 or more represented by the following equation (i), when p, q, r, and s are defined as component proportions (molar proportions) of structural unit represented by the following formula (1) to formula (4), in the polymer, respectively.

公开(公告)号：US11111206B2

公开(公告)日：2021-09-07

申请号：US16136593

申请日：2018-09-20

申请人： REGENTS OF THE UNIVERSITY OF MINNESOTA

发明人： Thomas R. Hoye ,  Nicolas Ball-Jones ,  Grant W. Fahnhorst

IPC分类号： C07C69/587 ,  C07C69/602 ,  C07C57/03 ,  C07C51/41 ,  C08F236/14 ,  C08F236/06 ,  C08F236/08 ,  C08F236/10 ,  C08F220/06 ,  C07C51/02 ,  C07C67/08 ,  C07C51/60 ,  C07C233/09

摘要： Monomers, polymers, or oligomers formed therefrom and methods of forming or utilizing monomers of formula I where R1 is a C1 to C4 alkyl; and X is —OH; —OM where M is lithium (Li), sodium (Na), or potassium (K), NH4+, R5NH3+, R52NH2+, R53NH+, R54N+ where R5 can independently be selected from alkyl, benzyl, and combinations thereof; —OR2 where R2 can be a C1 to C4 alkyl, 2-ethylhexyl, or a hydrocarbon moiety of bio-renewable alcohol or a hydrogenated derivative thereof; —NR3R4, —NR3—NR3R4, —NR3—OR4 where R3 and R4 can independently be H, a C1 to C4 alkyl, or combinations thereof.

公开(公告)号：US20200317701A1

公开(公告)日：2020-10-08

申请号：US16303448

申请日：2016-08-18

申请人： SHIN-ETSU CHEMICAL CO., LTD.

发明人： Munenao HIROKAMI

IPC分类号： C07F7/18 ,  C08C19/25 ,  C08F236/14 ,  C08K5/548 ,  C08L47/00

摘要： Provided is an organic silicon compound represented by formula (1), which when added to a rubber composition, can improve the wet traction performance of a cured product of the rubber composition, and significantly reduce a hysteresis loss of the cured product, and provides a rubber composition that can be used to implement a desired tire having high fuel efficiency. (In the formula, each R1 independently represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, each R2 independently represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, f represents a number equal to or larger than 0, e, g, and h each independently represent a number equal to or larger than 0, and m represents an integer of 1-3. Note that the repeating units can be present in any order.)

公开(公告)号：US10745423B2

公开(公告)日：2020-08-18

申请号：US15754464

申请日：2017-09-05

申请人： LG Chem, Ltd.

发明人： Min Sik Mun ,  No Ma Kim ,  Da Won Chai ,  Ho Young Lee

IPC分类号： C07F7/18 ,  C08C19/25 ,  C08C19/20 ,  C08C19/44 ,  C08C19/22 ,  C08L15/00 ,  C08F236/10 ,  C08F236/06 ,  C08F2/06 ,  C08F236/14 ,  C08K3/22

摘要： The present disclosure relates to a modifier, and more particularly, to a modifier including a compound represented by Formula 1, and a method of preparing the same. Such modifier exhibits excellent dispersibility via hydrogen bonding with an inorganic filler when mixed therewith. The present disclosure also relates to a modified conjugated diene-based polymer modified using the modifier and thus exhibiting excellent processability, high tensile strength, high wear resistance, low rolling resistance, and high wet skid resistance, and a method of preparing the modified conjugated diene-based polymer.

公开(公告)号：US20190055383A1

公开(公告)日：2019-02-21

申请号：US16168518

申请日：2018-10-23

申请人： William B. Coe

发明人： William B. Coe

IPC分类号： C08L19/00 ,  C08L9/06 ,  C08L15/00 ,  C08L15/02 ,  C08L11/00 ,  C08F210/12 ,  C08F236/14 ,  C08J11/26 ,  C08K5/56 ,  C08J5/18

摘要： Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

公开(公告)号：US20190055334A1

公开(公告)日：2019-02-21

申请号：US15677515

申请日：2017-08-15

申请人： The Goodyear Tire & Rubber Company

发明人： Stefan MECKING ,  Margaret Flook VIELHABER ,  Hannes LEICHT ,  Inigo Gottker genannt SCHNETMANN

IPC分类号： C08F236/14 ,  C08F236/06 ,  C08F236/08 ,  C08F4/70

摘要： The present invention is directed to a method of making an amine functionalized elastomer, comprising the steps of polymerizing at least one first monomer selected from the group consisting of 1,3-butadiene and isoprene and a second monomer of formula I in the presence of a polymerization catalyst in a hydrocarbon solvent to form a first copolymer in solution; where R1 is phenylene, a linear or branched alkane diyl group containing from 1 to 10 carbon atoms, or a combination of one or more phenylene groups and one or more linear or branched alkane diyl groups containing from 1 to 10 carbon atoms; and R2 is methyl or ethyl; and mixing the first copolymer in solution with a protic solvent followed by stirring to convert the first copolymer to a second copolymer given by the formula poly(M1 co M2) wherein M1 is the first monomer and M2 is of formula II where R1 is as previously defined.

公开(公告)号：US10081694B2

公开(公告)日：2018-09-25

申请号：US15205116

申请日：2016-07-08

申请人： The Goodyear Tire & Rubber Company

发明人： Margaret McGuigan Flook ,  Inigo Gottker genannt Schnetmann ,  Hannes Leicht ,  Stefan Mecking

IPC分类号： C08F236/06 ,  C08F236/14 ,  B60C1/00 ,  C08F230/08 ,  C08F4/619

CPC分类号： C08F236/06 ,  B60C1/00 ,  B60C1/0016 ,  C08F4/619 ,  C08F4/61908 ,  C08F230/08 ,  C08F4/7098 ,  C08F236/14 ,  C08F236/08 ,  C08F4/7004

摘要： The present invention is directed to a copolymer of a first monomer and a second monomer, wherein the first monomer is selected from the group consisting of 1,3-butadiene, isoprene, and styrene; and the second monomer is of formula I or V wherein R1 is a covalent bond, phenylene, a linear or branched alkane diyl group containing 1 to 10 carbon atoms, or a combination of one or more phenylene groups and one or more linear or branched alkane diyl groups containing 1 to 10 carbon atoms; R2 and R3 are independently linear or branched alkyl groups containing 1 to 10 carbon atoms; R4 is hydrogen or a linear or branched alkyl group containing 1 to 10 carbon atoms; and R5 is a linear or branched alkane diyl group containing 1 to 20 carbon atoms, or a bridging aromatic group. The invention is further directed to a rubber composition including the copolymer, and a pneumatic tire containing the rubber composition. The invention is further directed to a method of making such a copolymer.

公开(公告)号：US10071028B2

公开(公告)日：2018-09-11

申请号：US15315497

申请日：2015-06-10

申请人： KURARAY NORITAKE DENTAL INC.

发明人： Yamato Nojiri ,  Mitsuru Takei

IPC分类号： A61K6/083 ,  C08F216/12 ,  C08F222/26 ,  A61K6/08 ,  C08F222/10 ,  C08F22/38 ,  A61K6/087 ,  C08F220/40 ,  C08F220/34 ,  C08F236/14 ,  C08F220/20 ,  C08F30/02 ,  C08F22/10

CPC分类号： A61K6/083 ,  A61K6/00 ,  A61K6/0023 ,  A61K6/08 ,  A61K6/087 ,  C08F22/105 ,  C08F22/38 ,  C08F22/385 ,  C08F30/02 ,  C08F216/125 ,  C08F220/20 ,  C08F220/40 ,  C08F222/1006 ,  C08F222/26 ,  C08F236/14 ,  C08F2220/346 ,  C08F2222/1013 ,  C08F2222/102 ,  C08L33/26 ,  C08L33/04 ,  C08L33/14 ,  C08L43/02

摘要： The present invention provides a dental adhesive exhibiting excellent initial bond strength and bond durability to both enamel and dentin. The present invention relates to a dental adhesive containing: an asymmetric acrylamide-methacrylic acid ester compound (a); an acid group-containing (meth)acrylic polymerizable monomer (b); and a water-soluble polymerizable monomer (c). The asymmetric acrylamide-methacrylic acid ester compound (a) is represented by the following general formula (1): where X is an optionally substituted, linear or branched C1 to C6 aliphatic group or an optionally substituted aromatic group, the aliphatic group is optionally interrupted by at least one linking group selected from the group consisting of —O—, —S—, —CO—, —CO—O—, —O—CO—, —NR1—, —CO—NR1—, —NR1—CO—, —CO—O—NR1—, —O—CO—NR1—, and —NR1—CO—NR1—, and R1 is a hydrogen atom or an optionally substituted, linear or branched C1 to C6 aliphatic group.

公开(公告)号：US20170226254A1

公开(公告)日：2017-08-10

申请号：US15514580

申请日：2015-09-25

申请人： ZEON CORPORATION

发明人： Kentaro MORI

IPC分类号： C08F236/14 ,  C08C19/22

CPC分类号： C08F236/14 ,  C08C19/22 ,  C08F236/12 ,  C08J3/24 ,  C08J2309/02 ,  C08K5/16 ,  C08K5/205 ,  C08L9/02 ,  C08L13/00 ,  C08L15/005

摘要： A cross-linked rubber obtained by cross-linking a nitrile rubber composition, wherein the nitrile rubber composition contains a carboxyl group-containing nitrile rubber (a) with an iodine value of 120 or less and a diurethane compound (b) represented by a following general formula (1), a content of the diurethane compound (b) in the nitrile rubber composition is 5 to 15 parts by weight with respect to 100 parts by weight of the carboxyl group-containing nitrile rubber (a), and a tensile strength of the cross-linked rubber based on JIS K6251 is 15 MPa or more and an elongation at break of the cross-linked rubber based on JIS K6251 is 300% or more, is provided.