公开(公告)号：US20180362679A1

公开(公告)日：2018-12-20

申请号：US16060213

申请日：2016-12-07

Applicant: Bridgestone Corporation

Inventor： Hyeonjae Kim ,  Josha S. Dickstein ,  Dennis R. Brumbaugh ,  Zengquan Qin

IPC: C08F36/06 ,  C08F4/52 ,  C08K3/04 ,  C08K3/06

Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ΔHm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).

公开(公告)号：US20230391984A1

公开(公告)日：2023-12-07

申请号：US18133301

申请日：2023-04-11

Applicant: Bridgestone Corporation ,  University of Cincinnati

Inventor： Yan Jin ,  Gregory Beaucage ,  Karsten Vogtt ,  Hanqiu Jiang ,  Vikram K. Kuppa ,  Hyeonjae Kim ,  Jan IIavsky ,  Mindaugas Rackaitis

IPC: C08K3/36 ,  G01N15/08 ,  C08K3/04

CPC classification number: C08K3/36 ,  G01N15/08 ,  C08K3/04 ,  G01N2015/0866

Abstract: Compatibility in polymer compounds is determined by the kinetics of mixing and chemical affinity. Compounds like reinforcing filler/elastomer blends display some similarity to colloidal solutions in that the filler particles are close to randomly dispersed through processing. Applying a pseudo-thermodynamic approach takes advantage of this analogy between the kinetics of mixing for polymer compounds and true thermally driven dispersion for colloids. The results represent a new approach to understanding and predicting compatibility in polymer compounds based on a pseudo-thermodynamic approach.

公开(公告)号：US11499038B2

公开(公告)日：2022-11-15

申请号：US16958465

申请日：2018-12-20

Applicant: Bridgestone Corporation

Inventor： Hyeonjae Kim

IPC: C08L9/06

Abstract: The present disclosure relates to a rubber composition that includes an aromatic-compound based resin and a styrene-butadiene copolymer and a tire using the same as the tread rubber or a component thereof. The rubber composition provides improved wet traction.

公开(公告)号：US11884767B2

公开(公告)日：2024-01-30

申请号：US17564414

申请日：2021-12-29

Applicant: Bridgestone Corporation

Inventor： Hyeonjae Kim ,  Walter A. Salamant ,  Noriaki Yukimura ,  Steven Luo

IPC: C08F297/02 ,  C08F293/00 ,  C08F4/54 ,  C08F4/42 ,  B60C1/00 ,  B60C11/00 ,  C08K3/04 ,  C08L53/00 ,  C08L9/00

CPC classification number: C08F297/02 ,  B60C1/0016 ,  B60C1/0025 ,  B60C11/0008 ,  C08F4/42 ,  C08F4/545 ,  C08F293/005 ,  C08K3/04 ,  C08L53/00 ,  B60C2011/0025 ,  C08F2438/03 ,  C08L9/00

Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.

公开(公告)号：US11168160B2

公开(公告)日：2021-11-09

申请号：US16863458

申请日：2020-04-30

Applicant: Bridgestone Corporation

Inventor： Hyeonjae Kim ,  Joshua S. Dickstein ,  Dennis R. Brumbaugh ,  Zengquan Qin

IPC: C08F36/06 ,  C08K3/04 ,  C08K3/06 ,  C08L47/00 ,  C08L21/00 ,  C08F4/52 ,  C08L9/00 ,  C08L7/02 ,  C08L15/02 ,  C08L19/00

Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ΔHm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).

公开(公告)号：US20240052139A1

公开(公告)日：2024-02-15

申请号：US18257822

申请日：2021-12-16

Applicant: Mark N. DEDECKER ,  Hyeonjae KIM ,  Bridgestone Corporation

Inventor： Mark DeDecker ,  Hyeonjae Kim

IPC: C08K5/5415 ,  C08K5/548 ,  C08K3/04 ,  C08L19/00 ,  B60C1/00

CPC classification number: C08K5/5415 ,  C08K5/548 ,  C08K3/04 ,  C08L19/00 ,  B60C1/0025 ,  B60C1/0016 ,  B60C1/0041 ,  C08K2201/019 ,  B60C2200/06 ,  B60C2001/0066

Abstract: Disclosed herein are methods for improving the rolling resistance of a tire rubber composition by providing a rubber composition including a rubber component which includes a majority by weight of guayule rubber where the guayule rubber includes a bagasse component, and a filler component where the filler component is free of silica, and including at least one silane in the rubber composition, where the at least one silane is selected from the group consisting of mercaptosilanes, blocked mercaptosilanes, and alkoxysilanes. Also disclosed is a tire rubber composition which comprises (a) 100 parts of a rubber component including a majority by weight of guayule rubber where the guayule rubber includes a bagasse component, (b) a filler component, where the filler component is free of silica, and (c) at least one silane selected from the group consisting of mercaptosilanes, blocked mercaptosilanes, and alkoxysilanes.

公开(公告)号：US11230622B2

公开(公告)日：2022-01-25

申请号：US16348780

申请日：2017-11-09

Applicant: Bridgestone Corporation

Inventor： Hyeonjae Kim ,  Walter A. Salamant ,  Noriaki Yukimura ,  Steven Luo

IPC: C08F297/02 ,  C08F293/00 ,  C08K3/04 ,  C08L53/00 ,  B60C1/00 ,  B60C11/00 ,  C08F4/54 ,  C08F4/42 ,  C08L9/00

Abstract: A vulcanizable composition comprising rubber component, a filler, and a curing agent, where the rubber component includes a block copolymer of polybutadiene and polyisoprene, and where the block copolymer has a cis content of at least 90%.

公开(公告)号：US20210054176A1

公开(公告)日：2021-02-25

申请号：US16958465

申请日：2018-12-20

Applicant: Bridgestone Corporation

Inventor： Hyeonjae Kim

IPC: C08L9/06

Abstract: The present disclosure relates to a rubber composition that includes an aromatic-compound based resin and a styrene-butadiene copolymer and a tire using the same as the tread rubber or a component thereof. The rubber composition provides improved wet traction.

公开(公告)号：US20210277205A1

公开(公告)日：2021-09-09

申请号：US17150465

申请日：2021-01-15

Applicant: Bridgestone Corporation ,  University of Cincinnati

Inventor： Yan Jin ,  Gregory Beaucage ,  Karsten Vogtt ,  Hanqiu Jiang ,  Vikram K. Kuppa ,  Hyeonjae Kim ,  Jan Ilavsky ,  Mindaugas Rackaitis

IPC: C08K3/36 ,  G01N15/08 ,  C08K3/04

Abstract: Compatibility in polymer compounds is determined by the kinetics of mixing and chemical affinity. Compounds like reinforcing filler/elastomer blends display some similarity to colloidal solutions in that the filler particles are close to randomly dispersed through processing. Applying a pseudo-thermodynamic approach takes advantage of this analogy between the kinetics of mixing for polymer compounds and true thermally driven dispersion for colloids. The results represent a new approach to understanding and predicting compatibility in polymer compounds based on a pseudo-thermodynamic approach.

公开(公告)号：US20200255558A1

公开(公告)日：2020-08-13

申请号：US16863458

申请日：2020-04-30

Applicant: Bridgestone Corporation

Inventor： Hyeonjae Kim ,  Joshua S. Dickstein ,  Dennis R. Brumbaugh ,  Zengquan Qin

IPC: C08F36/06 ,  C08K3/04 ,  C08K3/06 ,  C08L47/00 ,  C08L21/00 ,  C08F4/52 ,  C08L9/00

Abstract: Embodiments of 1,4-polybutadiene rubber compositions useful at low temperatures are provided, wherein the 1,4-polybutadiene incorporated therein comprises a cis content of at least 85 to about 92%, a vinyl content of at about 1% to about 5%, and a trans content of about 3 to about 12%, and wherein the 1,4-polybutadiene has an enthalpy of melting ΔHm of about 5 to about 25 J/g° C. as measured via differential scanning calorimetry (DSC).