Patents by Inventor Richard M. D'Sidocky
Richard M. D'Sidocky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5616279Abstract: This invention relates to the discovery that tetrabenzylthiuram disulfide in combination with a bismaleimide compound and a sulfenamide compound provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing superior physical properties and reversion resistance.Type: GrantFiled: May 31, 1995Date of Patent: April 1, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard M. D'Sidocky, Neil A. Maly
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Patent number: 5616655Abstract: A method is disclosed for processing a rubber composition comprising thermomechanically mixing at a rubber temperature in a range of 140.degree. C. to 190.degree. C. for a mixing time of 1 to 20 minutes(i) 100 parts by weight of at least one sulfur vulcanizable elastomer selected from conjugated diene homopolymers and copolymers, natural rubber and copolymers of at least one conjugated diene and aromatic vinyl compound;(ii) 10 to 250 phr of particulate precipitated silica;(iii) 0.01 to 1.0 parts by weight per weight of said silica of an organosilicon compound; and(iv) 0.05 to 10 phr of sodium thiosulfate pentahydrate.Addition of the sodium thiosulfate pentahydrate to sulfur vulcanizable rubber, silica and sulfur containing organosilicon compound decreases the mixing/processing time without sacrificing end product properties.Type: GrantFiled: September 11, 1995Date of Patent: April 1, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard M. D'Sidocky, David J. Zanzig, Shingo Futamura
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Patent number: 5594052Abstract: A method is disclosed for increasing the rate of vulcanization of a sulfur rubber composition comprising heating a sulfur vulcanizable rubber composition to a temperature ranging from 100.degree. C. to 200.degree. C., said rubber composition, containing a sulfur vulcanizable rubber, a sulfenamide compound and a hydrated thiosulfate. Addition of the hydrated thiosulfate to a sulfur vulcanizable rubber and a sulfenamide compound significantly increases the rate of vulcanization of the rubber.Type: GrantFiled: September 11, 1995Date of Patent: January 14, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard M. D'Sidocky, Shingo Futamura
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Patent number: 5503940Abstract: An elastomeric adhesive composition or cushion which binds various elastomeric layers together is solventless and comprises a blend of a bis-imide compound, one or more elastomers, and a tackifier. The elastomeric adhesive has strong blowout protection and can be utilized to form a laminate of a buffed cured tire carcass carcass to a cured or uncured tire tread.Type: GrantFiled: October 24, 1994Date of Patent: April 2, 1996Assignee: The Goodyear Tire & Rubber CompanyInventors: Ramendra N. Majumdar, Thomas E. Duncan, Richard M. D'Sidocky, James R. Herberger, Sr., Lewis T. Lukich, Becky G. Dunn
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Patent number: 5328636Abstract: This invention relates to the discovery that bis-(2,5-polythio-1,3,4-thiadiazole) in combination with a bismaleimide compound and a sulfenamide compound provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing superior physical properties and reversion resistance.Type: GrantFiled: July 12, 1993Date of Patent: July 12, 1994Assignee: The Goodyear Tire & Rubber CompanyInventors: Neil A. Maly, Richard M. D'Sidocky, Lewis T. Lukich
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Patent number: 5300585Abstract: The present invention relates to methylol modified bismaleimides which are prepared by reacting under condensation conditions an aldehyde and a bismaleimide compound wherein the aldehyde is selected from the group consisting of formaldehyde, acetaldehyde or mixtures thereof; andsaid bismaleimide compound is of the formula: ##STR1## wherein R is a divalent radical selected from the group consisting of an acyclic aliphatic group, a cyclic aliphatic group, an aromatic group, and one to three alkylaromatic groups and wherein these groups may contain a hetero atom selected from O, N and S.Type: GrantFiled: March 25, 1993Date of Patent: April 5, 1994Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson G. Wideman, Richard M. D'Sidocky
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Patent number: 5262488Abstract: This invention relates to the discovery that bis-(2,5-polythio-1,3,4-thiadiazole) in combination with a bismaleimide compound and a sulfenamide compound provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing superior physical properties and reversion resistance.Type: GrantFiled: August 26, 1992Date of Patent: November 16, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Neil A. Maly, Richard M. D'Sidocky, Lewis T. Lukich
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Patent number: 5187239Abstract: A method is disclosed for increasing the rate of vulcanization of a rubber composition comprising adding to a sulfur vulcanizable rubber a methyl trialkyl ammonium salt of the formula: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are independently alkyl radicals having 8 to 10 carbon atoms and M is selected from the group consisting of Cl, Br, CH.sub.3 SO.sub.4 and HSO.sub.4. Addition of a methyl trialkyl ammonium salt of the above formula significantly increases the rate of vulcanization of the rubber.Type: GrantFiled: March 22, 1990Date of Patent: February 16, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Carl R. Parks, Richard M. D'Sidocky, Martin P. Cohen
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Patent number: 4873291Abstract: This invention relates to the discovery that a morpholine polysulfide, such as morpholine tetrasulfide, in combination with a substituted triazine having at least one dialkyl dithiocarbamyl radical provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing superior physical properties and reversion resistance.Type: GrantFiled: December 7, 1987Date of Patent: October 10, 1989Assignee: The Goodyear Tire & Rubber CompanyInventors: Martin P. Cohen, Richard M. D'Sidocky
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Patent number: 4808666Abstract: This invention relates to the discovery that a morpholine polysulfide, such as morpholine tetrasulfide, in combination with a substituted triazine having at least one dialkyl dithiocarbamyl radical provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing superior physical properties and reversion resistance.Type: GrantFiled: December 28, 1987Date of Patent: February 28, 1989Assignee: The Goodyear Tire & Rubber CompanyInventors: Martin P. Cohen, Richard M. D'Sidocky
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Patent number: 4755320Abstract: This invention relates to the discovery that a morpholine polysulfide, such as morpholine tetrasulfide, in combination with a substituted triazine having at least one dialkyl dithiocarbamyl radical provides for excellent vulcanization of rubbers and results in an improved final rubber vulcanizate possessing superior physical properties and reversion resistance.Type: GrantFiled: March 9, 1987Date of Patent: July 5, 1988Assignee: The Goodyear Tire & Rubber CompanyInventors: Martin P. Cohen, Richard M. D'Sidocky
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Patent number: 4617347Abstract: Silicone rubbers can not normally be vulcanized or cured with sulfur. For this reason it has been traditionally difficult to co-cure blends of silicone rubbers and diene rubbers utilizing conventional sulfur curatives. This problem has severely limited the utilization of silicone rubber/diene rubber blends in many applications. However, this difficulty can be easily overcome by utilizing in such blends the sulfur curable silicone rubbers of the present invention. These sulfur curable silicone rubbers are prepared by modifying silicone rubbers which contain pendent vinyl groups with N-chlorothio-sulfonamides.Type: GrantFiled: September 9, 1985Date of Patent: October 14, 1986Assignee: The Goodyear Tire & Rubber CompanyInventor: Richard M. D'Sidocky
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Patent number: 4579911Abstract: There are disclosed polymers which have nonionic surfactant moieties pendant to the polymeric backbone which exhibit activated sulfur vulcanization, a process for their preparation, and mixtures of polymeric cure activators and elastomers.Type: GrantFiled: June 3, 1985Date of Patent: April 1, 1986Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard M. D'Sidocky, Kirkwood S. Cottman, Joseph F. Geiser, Paul H. Sandstrom, Robert A. Smith
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Patent number: 4463191Abstract: There is disclosed a process for the reductive alkylation of aromatic nitro-containing compounds with ketones or aldehydes wherein the improvement is characterized in that a specific polymer bound co-catalyst system is utilized. More specifically, a polymer bound anthranilic acid palladium complex is used in conjunction with a bound sulfonic acid resin as a catalyst system in a reaction to produce compounds such as N-phenyl-N'-alkyl-p-phenylenediamine.Type: GrantFiled: September 26, 1983Date of Patent: July 31, 1984Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard M. D'Sidocky, Dane K. Parker
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Patent number: 4438289Abstract: A process for reducing the level of cyclopentadiene present in a hydrocarbon stream containing isoprene and cyclopentadiene which involves contacting the stream with a base wherein said base is selected from the group consisting of potassium hydroxide, sodium hydroxide and potassium fluoride. The base is situated on activated carbon carrier.Type: GrantFiled: July 1, 1983Date of Patent: March 20, 1984Assignee: The Goodyear Tire & Rubber CompanyInventor: Richard M. D'Sidocky
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Patent number: 4392004Abstract: A process for reducing the level of cyclopentadiene present in a hydrocarbon stream containing isoprene and cyclopentadiene which involves contacting the stream with a base wherein said base is selected from the group consisting of potassium hydroxide, sodium hydroxide and potassium fluoride. The base is situated on activated carbon carrier.Type: GrantFiled: February 22, 1982Date of Patent: July 5, 1983Assignee: The Goodyear Tire & Rubber CompanyInventor: Richard M. D'Sidocky
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Patent number: 4163757Abstract: Diphenylamine is reacted with styrene in the presence of a base modified acid clay catalyst to improve yields of the p-styrenated diphenylamine (DPA), particularly the distyrenated DPA. Fuller's Earth exemplifies the clay, while KOH exemplifies the base. The highly p-styrenated diphenylamine is an active antioxidant with low volatility.Type: GrantFiled: November 13, 1978Date of Patent: August 7, 1979Assignee: The Goodyear Tire & Rubber CompanyInventor: Richard M. D'Sidocky