61
Wen Liang Hsu, Adel Farhan Halasa: Technique for reducing the cold flow of rubbers. The Goodyear Tire & Rubber Company, Alvin T Rockhill, September 18, 2001: US06289959 (3 worldwide citation)

Cold flow is a problem that is commonly encountered in the handling and storage of low molecular weight linear rubbers, such as low vinyl polybutadiene rubber and isoprene-butadiene rubber. This invention is based upon the unexpected discovery that the cold flow of such rubbery polymers can be great ...


62
Adel Farhan Halasa, Wen Liang Hsu, Kenneth Allen Bates, Shingo Futamura: Tire with a tread comprising a rubbery polymer of a functionalized monomer. The Goodyear Tire & Rubber Company, Henry C Young Jr, May 29, 2007: US07222650 (3 worldwide citation)

This invention discloses a process for synthesizing an amine functionalized monomer that comprises (1) reacting a secondary amine with a 2,3-dihalopropene to produce a vinyl halide containing secondary amine having a structural formula selected from the group consisting of wherein R and R′ can be th ...


63
Adel Farhan Halasa, Wen Liang Hsu, Jin Ping Zhou, Chad Aaron Jasiunas: Functionalized monomers for synthesis of rubbery polymers. The Goodyear Tire & Rubber Company, Henry C Young Jr, February 7, 2006: US06995224 (3 worldwide citation)

This invention discloses a process for synthesizing an amine functionalized monomer that comprises (1) reacting a secondary amine with a 2,3-dihalopropene to produce a vinyl halide containing secondary amine having a structural formula selected from the group consisting of wherein R and R′ can be th ...


64
Wen Liang Hsu, Adel Farhan Halasa, Chad Aaron Jasiunas: Group III-B metal catalyst system. The Goodyear Tire & Rubber Company, Alvin T Rockhill, April 4, 2006: US07022783 (3 worldwide citation)

The subject invention relates to a technique for synthesizing rubbery non-tapered, random, copolymers of 1,3-butadiene and isoprene. These rubbery copolymers exhibit an excellent combination of properties for utilization in tire sidewall rubber compounds for truck tires. By utilizing these isoprene- ...


65
David John Zanzig, Adel Farhan Halasa, Chad Aaron Jasiunas: Tire with component comprised of a blend of polybutadiene-rich rubber composition which contains a minor portion of styrene-rich styrene/isoprene elastomer. The Goodyear Tire & Rubber Company, Henry C Young Jr, November 2, 2004: US06812277 (3 worldwide citation)

Pneumatic rubber tire having at least one component or a rubber composition comprised of a major portion of relatively low Tg high cis 1,4-polybutadiene elastomer (BR) and a minor portion of a relatively high Tg, styrene-rich, styrene/isoprene elastomer (SIR) wherein the Tg of said BR is at least 60 ...


66
Adel Farhan Halasa, James Edward Hall: Catalyst system and process for polymerization of conjugated dienes therewith. The Firestone Tire & Rubber Company, August 15, 1978: US04107081 (3 worldwide citation)

The catalyst system disclosed herein comprises one suitable for the polymerization of a conjugated diene, which system comprises a trihydrocarbyl aluminum compound, in which the hydrocarbyl group is an alkyl, aryl or cycloalkyl radical of 1-10 carbon atoms, and an alkali metal compound of the formul ...


67
Adel Farhan Halasa, Wen Liang Hsu, John Robert Zuppo III: Calcium-based catalyst system. The Goodyear Tire & Rubber Company, Alvin T Rockhill, March 19, 2002: US06359088 (3 worldwide citation)

The process and catalyst system of this invention can be utilized to synthesize a highly random styrene-butadiene rubber having a high trans content by solution polymerization. The styrene-butadiene rubber made by the process of this invention can be utilized in tire tread rubbers that exhibit impro ...


68
Adel Farhan Halasa, Wen Liang Hsu: Synthesis of functionalized lithium initiator. The Goodyear Tire & Rubber Company, Alvin T Rockhill, February 11, 2003: US06518214 (3 worldwide citation)

This invention discloses a process for making dilithium initiators in high purity. This process can be conducted in the absence of amines which is desirable since amines can act as modifiers for anionic polymerizations. The dilithium compounds made are highly desirable because they are soluble in ar ...


69
Adel Farhan Halasa, Wen Liang Hsu: Synthesis of soluble functionalized lithium initiators. The Goodyear Tire & Rubber Company, Alvin T Rockhill, February 3, 2004: US06686504 (3 worldwide citation)

This invention discloses a process for making dilithium initiators in high purity. This process can be conducted in the absence of amines which is desirable since amines can act as modifiers for anionic polymerizations. The dilithium compounds made are highly desirable because they are soluble in ar ...


70
Neil Arthur Maly, Paul Harry Sandstrom, Wen Liang Hsu, Adel Farhan Halasa: Tire with tread of novel polymer blend including styrene-rich styrene/isoprene/butadiene segmented terpolymer. The Goodyear Tire & Rubber Company, Henry C Young Jr, June 25, 2002: US06410624 (3 worldwide citation)

Rubber compositions comprised of novel blends of segmented styrene-rich styrene/isoprene/butadiene terpolymer elastomer and at least one additional elastomer and tires with treads comprised of such rubber composition. Such tires may exhibit increased traction and reduced rolling resistance.