Hergenrother William L, Hilton Ashley S, Cole William M: Improved processability of silica filled rubber stocks. Bridgestone, January 13, 1999: EP0890606-A1 (32 worldwide citation)

A processable rubber stock is produced by the preparation of a silica-filled, elastomeric compound comprising mixing an elastomer with an amorphous silica filler, from 0 to less than about 1 % by weight based on said silica filler of bisÄ3-(triethoxysilyl)propylÜtetrasulfide, an alkylalkoxysilane an ...

Hergenrother William L, Cole William M, Oziomek James: Improved processability of silica-filled rubber stocks with reduced hysteresis. Bridgestone, January 13, 1999: EP0890603-A1 (27 worldwide citation)

A silica-filled, vulcanized elastomeric compound comprises 100 parts by weight of an elastomer; from about 5 to about 100 parts by weight of a reinforcing filler per 100 parts of elastomer, wherein the reinforcing fillers are selected from the group consisting of carbon black and silica filler; from ...

Hergenrother William L: Block polymers of polysiloxanes and polybutadiene. The Firestone Tire & Rubber Company, December 23, 1975: US3928490 (24 worldwide citation)

Block polymers are produced by polymerizing butadiene and joining to polysiloxane to make a copolymer with alternating blocks of polybutadiene and polysiloxane. The products are useful for the manufacture of gaskets, hose, belts, and other products designed for high-temperature use.

Hergenrother William L, Oziomek James, Cole William M: Addition of salts to improve the interaction of silica with rubber. Bridgestone, January 13, 1999: EP0890602-A1 (20 worldwide citation)

Incorporation of neutral water soluble inorganic salts into a precipitated silica improves the filler dispersion in a compounded rubber, reduces rolling resistance (hysteresis), and improves processability. These properties are achieved without loss of the expected reinforcement effect due to the su ...

Hergenrother William L, Ambrose Richard J: Method of making nylon constituent block copolymers of predetermined pliability at low temperatures. The Firestone Tire & Rubber Company, January 7, 1975: US3859382 (17 worldwide citation)

Polymers of anionically polymerized monomers are made with an organo alkali metal initiator and then reacted with either polyisocyanates or polyisothiocyanates which remove the alkali atoms and form a novel polymeric composition containing isocyanate or isothiocyanate terminated polymers. These poly ...

Hergenrother William L, Lynch Thomas J: Amine-initiated elastomers having a hysteresis reducing interaction with silica. Bridgestone, January 13, 1999: EP0890587-A1 (15 worldwide citation)

The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization conditions; terminating polymerization with an amino grou ...

Oziomek James, Hergenrother William L: Elastomers having a reduced hysteresis via interaction of polymer with silica surfaces. Bridgestone, January 13, 1999: EP0890588-A1 (15 worldwide citation)

The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with an initiator and a coordinator; effecting polymerization conditions; terminating polymerization with a terminator containing an organo-ti ...

Schonfeld Steven E, Ravagnani Frederick J, Hergenrother William L: A cured rubber skin stock and its use.. Firestone Tire & Rubber Co, April 1, 1981: EP0025840-A1 (13 worldwide citation)

Disclosed is a composition for the improvement of the adhesion between conventional rubber skim stock compositions, utilized in the manufacture of tires, conveyor belts, hoses and the like, and metallic reinforcement cords or members such as bright steel. The invention composition is prepared by add ...

Hergenrother William L, Bethea Tristram W, Doshak John M: Tin containing elastomers and products having reduced hysteresis properties.. Bridgestone Firestone, July 8, 1992: EP0493839-A1 (10 worldwide citation)

An anionic polymerization initiator comprising the reaction product of a an organatin halide and lithium in a suitable solvent. Elastomeric polymers prepared with these initiators have tin containing functional groups on substantially every polymer chain and provide vulcanizable rubber compounds exh ...

Hergenrother William L, Graves Daniel F: Block copolymers of polysiloxanes and copolymers of conjugated dienes and aromatic vinyl compounds, and multilayer structures containing same.. Bridgestone, December 30, 1992: EP0520279-A2 (10 worldwide citation)

Block copolymers are described which comprise alternating blocks of (A) a polysiloxane; and (B) a copolymer of a 1,3-conjugated diene and a monovinyl aromatic compound. The block copolymers can be prepared by reacting a polysiloxane with a dilithiated copolymer of a conjugated diene and a monovinyl ...