11
William Paul Francik, Edward John Blok, Paul Harry Sandstrom, John Joseph Andre Verthe, David John Zanzig, Adel Farhan Halasa: Tire tread with elastomers of spatially defined Tg's. The Goodyear Tire & Rubber Company, Henry C Young Jr, August 6, 2002: US06429245 (17 worldwide citation)

The invention relates to a tire with a tread. The tread is composed of at least two defined elastomers having Tg's spaced apart by at least 55° C. to the exclusion of elastomers having Tg's between −30° and −85° C. The tread composition can be reinforced with either carbon black or a combi ...


12
Abderrahim Khadir, Adel Farhan Halasa, Wen Liang Hsu: Functionalized rubbery polymer containing polysiloxane. The Goodyear Tire & Rubber Company, Alvin T Rockhill, May 6, 2003: US06558805 (17 worldwide citation)

The present invention relates to an anionic polymerization technique for synthesizing functionalized rubbery polymers containing polysiloxane that have excellent characteristics for utilization in (a) tire tread compounds that are highly loaded with silica, (b) shiny tire side-wall compounds, and (c ...


13
Adel Farhan Halasa, Wen Liang Hsu, Chad Aaron Jasiunas, John Robert Zuppo III, Laurie Elizabeth Austin: Group IIa metal containing catalyst system. The Goodyear Tire & Rubber Company, Alvin T Rockhill, September 30, 2003: US06627715 (16 worldwide citation)

The group IIa metal containing catalyst system of this invention can be utilized to synthesize rubbery polymers having a high trans microstructure by solution polymerization. Such rubbery polymers having a high trans microstructure content, such as polybutadiene rubber, styrene-isoprene-butadiene ru ...


14
George Jalics, Adel Farhan Halasa: Trans microstructure directing initiator system. The Goodyear Tire & Rubber Company, Alvin T Rockhill, May 19, 1998: US05753579 (15 worldwide citation)

The process of this invention can be utilized to synthesize polymers having a high trans microstructure. The polymers which can be prepared utilizing the procedure of this invention include high trans-1,4-polybutadiene, styrene-isoprene-butadiene terpolymers with high trans-1,4-polybutadiene microst ...


15
Wen Liang Hsu, Adel Farhan Halasa: Preparation of syndiotactic polybutadiene, rubber composition and tire with rubber component. The Goodyear Tire & Rubber Company, Henry C Young Jr, October 18, 2005: US06956093 (15 worldwide citation)

The present invention relates to the preparation of syndiotactic 1,2-polybutadiene polymer using a catalyst containing a carbon disulfide in which the polymerizate thereof is treated with hydrogen peroxide, to preparation of a composite of conjugated diene-based elastomer and syndiotactic 1,2-polybu ...


16
Olivier Louis, Adel Farhan Halasa, Wen Liang Hsu: Tire tread compound. The Goodyear Tire & Rubber Company, Alvin T Rockhill, December 4, 2001: US06326424 (13 worldwide citation)

It has been unexpectedly determined that isoprene-butadiene rubber having a high glass transition temperature within the range of about −40° C. to about −25° C. (high Tg IBR) can be loaded with silica as a filler and utilized in manufacturing tire treads that have outstanding performance characteris ...


17
Adel Farhan Halasa, Wen Liang Hsu: Functionalized monomers for synthesis of rubbery polymers. The Goodyear Tire & Rubber Company, Alvin T Rockhill, May 9, 2006: US07041761 (13 worldwide citation)

The present invention relates to a process for synthesizing a rubbery polymer that comprises copolymerizing at least one conjugated diolefin monomer and at least one functionalized monomer in an organic solvent at a temperature which is within the range of 0° C. to about 150° C., wherein the polymer ...


18
Adel Farhan Halasa, Wen Liang Hsu: Synthesis of high vinyl rubber. The Goodyear Tire & Rubber Company, Alvin T Rockhill, October 31, 2000: US06140434 (12 worldwide citation)

Metal salts of saturated aliphatic alcohols can be used as modifiers in lithium initiated solution polymerizations of diene monomers into rubbery polymers. Sodium t-amylate is a preferred modifiers because of its exceptional solubility in non-polar aliphatic hydrocarbon solvents that are employed as ...


19
Adel Farhan Halasa, Wen Liang Hsu, Jin Ping Zhou, Chad Aaron Jasiunas, Corey Stanton Yon: Functionalized monomers for synthesis of rubbery polymers. The Goodyear Tire & Rubber Company, Henry C Young Jr, Alvin T Rockhill, August 23, 2005: US06933358 (12 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 ...


20
Adel Farhan Halasa, Donald Norman Schulz: Alkali metal aliphatic and aromatic hydrocarbon acetals and ketals and their use as polymerization initiators. The Firestone Tire & Rubber Company, October 4, 1977: US04052370 (12 worldwide citation)

Alkali metal aliphatic and aromatic hydrocarbon acetals and ketals are initiators for the polymerization of conjugated dienes and copolymerization of conjugated diene and vinyl monomers. Mono-acetal and mono-ketal polymers are produced by termination of the foregoing polymers and copolymers with met ...