Terrence Hogan

US Patent:

6399692, Jun 4, 2002

Filed:

May 6, 1999

Appl. No.:

09/306586

Inventors:

Terrence E. Hogan - Cuyahoga Falls OH
William L. Hergenrother - Akron OH
Mario DeTrano - Massillon OH

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

C08J 300

US Classification:

524494, 152151, 1521521, 152DIG 2, 264501, 524366, 524368, 524376, 524377, 524492, 524493, 524495, 524496

Abstract:

A tire tread composition comprising 100 parts by weight of a vulcanizable elastomer suitable for use in a tire; from about 1 to about 100 parts by weight of a silica reinforcing filler, per 100 parts of the elatomer; and from about 0. 1 to 15 parts by weight of an electrically conductive additive containing a poly(alkylene oxide)-containing polymer having a alkali metal salt dissolved therein, per 100 parts of the elastomer provides improved electrical conductivity properties. A pneumatic tire having improved electrostatic dissipation employing the tire tread composition described above and a related method for dissipating electrostatic charges from tires using the tread composition is also discussed.

US Patent:

6573412, Jun 3, 2003

Filed:

May 12, 2000

Appl. No.:

09/570578

Inventors:

Terrence E. Hogan - Cuyahoga Falls OH
William L. Hergenrother - Akron OH
James E. Hall - Mogadore OH

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

C07C 4311

US Classification:

568616, 568606, 556482, 528392, 528396

Abstract:

The invention provides chain-coupled polymeric alkoxide compounds for use as the elastomeric component in vulcanizable elastomeric compositions comprising silica, carbon black or mixtures thereof. In particular, the invention provides anionically polymerized polymers having polymer chain living ends that are functionalized with alkoxide groups and coupled together by a metal or nonmetal atom. The polymeric alkoxide compounds have an initial high viscosity for ease of handling prior to compounding, a stable viscosity during storage, and a decreased compound viscosity for better filler dispersion and improved mixing efficiency. The invention further provides a pneumatic tire having at least one component produced from the vulcanizable elastomeric composition of the invention.

US Patent:

6630535, Oct 7, 2003

Filed:

Aug 18, 2000

Appl. No.:

09/642497

Inventors:

Terrence E. Hogan - Cuyahoga Falls OH
James A. Krom - Cleveland OH
James E. Hall - Mogadore OH
Xiaorong Wang - Akron OH
Peyman Pakdel - Akron OH
William L. Hergenrother - Akron OH

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

C08L 5100

US Classification:

525 86, 525 87, 525 80, 525 83, 525 84, 525 70, 5253319, 5253326, 1522091

Abstract:

A composition comprising an elastomer, a filler, and a comb-like polymer, the comb-like polymer comprising a backbone and a plurality of side chains, the backbone having a length greater than or equal to the entanglement length, the side chains having a length greater than about 33% of the entanglement length, the backbone including at least one side chain per entanglement length, and the comb-like polymer having a T of less than -5Â C.

US Patent:

7429393, Sep 30, 2008

Filed:

Mar 23, 2001

Appl. No.:

09/889366

Inventors:

Xiaorong Wang - Hudson OH, US
Victor F. Foltz - Akron OH, US
Terrence E. Hogan - Akron OH, US
William M. Cole - Clinton OH, US
Naruhiko Mashita - Yokohama, JP
Yuichiro Wakana - Yokohama, JP
Tadashi Utsunomiya - Yokohama, JP

Assignee:

Bridgestone Corporation - Chuo-ku, Tokyo

International Classification:

A61K 31/27

US Classification:

424484, 424400

Abstract:

A process that enables the formation of a high damping, soft polymer gel includes reacting a maleimide copolymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene-grafted maleimide copolymer product which then is dispersed with an extender sufficient to form the gel. The steps can be carried out sequentially in a high shear mixer without the need for intermediate steps of cooling and grinding the reaction product of one step before proceeding to the next.

US Patent:

7576155, Aug 18, 2009

Filed:

Dec 18, 2003

Appl. No.:

10/536278

Inventors:

Xiaorong Wang - Hudson OH, US
Hiroyuki Fudemoto - Tokyo, JP
James E. Hall - Mogadore OH, US
Shunji Araki - Kodaira, JP
Terrence Hogan - Akron OH, US
Victor J. Foltz - Akron OH, US
Pat Sadhukhan - Akron OH, US
Georg G. A. Böhm - Akron OH, US

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

C08K 9/04

US Classification:

524445, 425186, 425447

Abstract:

A polymer composition of low gas permeability. The composition includes an exfoliated organically-modified clay, butyl rubber, and a polymeric exfoliant. A method for producing the butyl composition by dry mixing the butyl rubber with the exfoliated clay is also provided.

US Patent:

8389609, Mar 5, 2013

Filed:

Jun 30, 2010

Appl. No.:

12/827361

Inventors:

Xiaorong Wang - Hudson OH, US
Victor J. Foltz - Akron OH, US
Terrence E. Hogan - Akron OH, US

Assignee:

Bridgestone Corporation - Tokyo

International Classification:

C08G 18/48

US Classification:

524130, 524394, 524399, 524398, 524148, 524156, 524166

Abstract:

A composition includes a polymer matrix, a multiple-acid-derived metal soap, wherein the metal has an oxidation state of +3 or +4. An associated method for making a rubber composition includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; and combining the multiple-acid-derived metal soap with a diene rubber. A method of making a tire component includes the steps of: combining a solvent and a multiple carboxylic, phosphonic, phosphoric, sulfuric, or sulfonic acid, or mixtures thereof, and mixing to form solution A; adding a source of metal ions to solution A and mixing to form a product A, the metal being selected from the metals having an oxidation state of +3 or +4, whereby product A includes a multiple-acid-derived metal soap; combining the multiple-acid-derived metal soap with a diene rubber; and molding and vulcanizing the rubber composition into a tire component.

US Patent:

20080103261, May 1, 2008

Filed:

Oct 25, 2006

Appl. No.:

11/585810

Inventors:

Ken Tanaka - Tokyo, JP
Koji Masaki - Tokyo, JP
Yoichi Ozawa - Tokyo, JP
Eiju Suzuki - Cuyahoga Falls OH, US
Christine M. Rademacher - Akron OH, US
Terrence E. Hogan - Akron OH, US

International Classification:

C08F 136/00

US Classification:

5253319, 525342, 525374

Abstract:

The invention provides a process for producing a modified conjugated diene based polymer which attains favorable interaction between a rubber component and carbon black and/or silica, thereby improving dispersibility of the fillers, and which exhibits excellent properties such as heat-buildup-suppressing performance, fracture characteristics, and wear resistance; a modified conjugated diene based polymer produced through the process; a rubber composition containing the diene polymer; and a tire produced from the rubber composition and exhibiting the above properties. The process for producing a modified conjugated diene based polymer includes a step (a) of reacting a silicon compound with a conjugated diene based polymer having an active end so that the reaction takes place at the active end, the silicon compound having a protected primary amino group in the molecule thereof and a bi-functional silicon atom to which a hydrocarbyloxy group and a reactive group including a hydrocarbyloxy group are bonded, to thereby modify the active end, and a step (b) of performing condensation reaction which involves the compound having a bi-functional silicon atom, in the presence of a titanium compound serving as a titanium-based condensation-accelerating agent.

US Patent:

20100016496, Jan 21, 2010

Filed:

Oct 25, 2007

Appl. No.:

12/446799

Inventors:

Ken Tanaka - Tokyo, JP
Kouji Masaki - Tokyo, JP
Yoichi Ozawa - Tokyo, JP
Eiji Suzuki - Cuyahoga Falls OH, US
Christine M. Rademacher - Akron OH, US
Terrence E. Hogan - Akron OH, US
Takuo Sone - Tokyo, JP
Takaomi Matsumoto - Tokyo, JP

International Classification:

C08L 83/04
C08G 77/08

US Classification:

524506, 528 16, 524588

Abstract:

The invention provides a process for producing a modified conjugated diene based polymer which attains favorable interaction between a rubber component and carbon black and/or silica, thereby improving dispersibility of the fillers, and which exhibits excellent properties such as heat-buildup-suppressing performance, fracture characteristics, and wear resistance; a modified conjugated diene based polymer produced through the process; a rubber composition containing the diene polymer; and a tire produced from the rubber composition and exhibiting the above properties. The process for producing a modified conjugated diene based polymer includes a step (a) of reacting a silicon compound with a conjugated diene based polymer having an active end so that the reaction takes place at the active end, the silicon compound having a protected primary amino group in the molecule thereof and a bi-functional silicon atom to which a hydrocarbyloxy group and a reactive group are bonded, to thereby modify the active end, and a step (b) of performing condensation reaction which involves the compound having a bi-functional silicon atom, in the presence of a titanium compound serving as a titanium-based condensation-accelerating agent.