Patents by Inventor Mark Leslie Kralevich, Jr.
Mark Leslie Kralevich, Jr. 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: 6562895Abstract: The subject invention discloses a liquid isoprene-butadiene rubber (IBR) which is particularly valuable for use in making treads for high performance automobile tires, including race tires, that exhibit superior dry traction characteristics and durability. The isoprene-butadiene rubber of this invention is a liquid at room temperature and is comprised of repeat units which are derived from about 5 weight percent to about 95 weight percent isoprene and from about 5 weight percent to about 95 weight percent 1,3-butadiene, wherein the repeat units derived from isoprene and 1,3-butadiene are in essentially random order. The IBR of this invention also has a low number average molecular weight which is within the range of about 3,000 to about 50,000 and has a glass transition temperature which is within the range of about −50° C. to about 20° C.Type: GrantFiled: November 30, 2000Date of Patent: May 13, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Wen-Liang Hsu, Adel Farhan Halasa
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Patent number: 6525133Abstract: A pneumatic tire with a rubber tread which utilized an alpha-methyl styrene oligomerType: GrantFiled: March 29, 2000Date of Patent: February 25, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Paul Harry Sandstrom, Mark Leslie Kralevich, Jr., Edward John Blok
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Patent number: 6369255Abstract: The present invention relates to titanate compounds of the formula wherein R is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms and x is an integer of from 2 to 8.Type: GrantFiled: September 30, 1999Date of Patent: April 9, 2002Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom, Mark Leslie Kralevich, Jr.
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Patent number: 6357499Abstract: The present application relates to polymeric resinous material comprising (1) from 5 to 70 weight percent units derived from limonene; (2) from 5 to 70 weight percent units derived from dicyclopentadiene; (3) from 5 to 45 weight percent units derived from indene; and (4) from 5 to 45 weight percent units derived from tertiary-butyl styrene; wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 40 to 75 weight percent units of the resin and the sum of the weight percent units derived from indene and tertiary-butyl styrene range from 25 to 60 weight percent units of the resin.Type: GrantFiled: August 27, 1999Date of Patent: March 19, 2002Assignee: The Goodyear Tire & Rubber CompanyInventors: Mark Leslie Kralevich, Jr., Edward John Blok, Paul Harry Sandstrom, Lawson Gibson Wideman, Joseph Miles Ruscak
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Patent number: 6316567Abstract: The present application relates to polymeric resinous material comprising (1) from 5 to 70 weight percent units derived from limonene; (2) from 5 to 70 weight percent units derived from dicyclopentadiene; (3) from 5 to 45 weight percent units derived from indene; and (4) from 5 to 45 weight percent units derived from alpha-methyl styrene; wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 40 to 75 weight percent units of the resin and the sum of the weight percent units derived from indene and alpha-methyl styrene range from 25 to 60 weight percent units of the resin.Type: GrantFiled: May 16, 2001Date of Patent: November 13, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Mark Leslie Kralevich, Jr., Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom
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Patent number: 6313206Abstract: The present invention relates to titanate compounds of the formula wherein R is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms and x is an integer of from 2 to 8.Type: GrantFiled: October 1, 1999Date of Patent: November 6, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom, Mark Leslie Kralevich, Jr.
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Patent number: 6300421Abstract: The invention relates to preparation of EPDM-based and EPR-based rubber compositions which are vulcanized with peroxide together with a specified combination of sulfur and acrylate co-agents. The invention further relates to articles having at least one component thereof.Type: GrantFiled: March 4, 1999Date of Patent: October 9, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Larry Ashley Gordon, James Edward Taucher
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Patent number: 6281317Abstract: This invention relates to a novel class of polymeric resins which have a softening point ranging from about 50° C. to about 220° C. and a molecular weight ranging from about 500 to about 42,000. The resins comprise the polymers which result from the polymerization reaction between dimethyl dicyclopentadiene and limonene. The polymeric resins are particularly useful in improving traction of the rubber when used in tire treads.Type: GrantFiled: April 3, 2001Date of Patent: August 28, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Mark Leslie Kralevich, Jr., Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom
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Patent number: 6274685Abstract: The present application relates to polymeric resinous material comprising (1) from 15 to 39 weight percent units derived from limonene; (2) from 15 to 39 weight percent units derived from dicyclopentadiene; and (3) from 46 to 70 weight percent units derived from tertiary-butyl styrene; wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 30 to 54 weight percent units of the resin.Type: GrantFiled: January 31, 2001Date of Patent: August 14, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Lawson Gibson Wideman, Paul Harry Sandstrom, Joseph Miles Ruscak
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Patent number: 6265478Abstract: The present application relates to polymeric resinous material comprising (1) from 5 to 70 weight percent units derived from limonene; (2) from 5 to 70 weight percent units derived from dicyclopentadiene; (3) from 5 to 45 weight percent units derived from indene; and (4) from 5 to 45 weight percent units derived from alpha-methyl styrene; wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 40 to 75 weight percent units of the resin and the sum of the weight percent units derived from indene and alpha-methyl styrene range from 25 to 60 weight percent units of the resin.Type: GrantFiled: August 18, 1999Date of Patent: July 24, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Mark Leslie Kralevich, Jr., Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom
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Patent number: 6242523Abstract: This invention relates to a rubber composition composed of high Tg diene-based elastomers and which contains a high Tg liquid polymer of high vinyl polybutadiene and to such a composition being sulfur cured. The invention also relates to a tire having a tread of such rubber composition.Type: GrantFiled: March 8, 1999Date of Patent: June 5, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Shingo Futamura
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Patent number: 6242550Abstract: This invention relates to a novel class of polymeric resins which have a softening point ranging from about 50° C. to about 220° C. and a molecular weight ranging from about 500 to about 42,000. The resins comprise the polymers which result from the polymerization reaction between dimethyl dicyclopentadiene and limonene. The polymeric resins are particularly useful in improving traction of the rubber when used in tire treads.Type: GrantFiled: May 7, 1999Date of Patent: June 5, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Mark Leslie Kralevich, Jr., Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom, Joseph Miles Ruscak
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Patent number: 6228944Abstract: Pneumatic tire characterized by improved dry traction and durability having a tread comprised of a diene-based elastomer containing olefinic unsaturation and 1-80 phr of a polymeric resinous material comprising: (1) from 5 to 70 weight % units derived from limonene; (2) from 5 to 70% units derived from dimethyl-dicyclopentadiene; (3) from 5 to 45 weight % units derived from indene; and (4) from 5 to 45 weight % units derived from vinyl toluene, wherein the sum of the weight percent units derived from limonene and dimethyl-dicyclopentadiene range from 40 to 75 weight percent units of the resin, and the sum of weight percent units derived from indene and vinyl toluene range from 25 to 60 weight percent units of the resin.Type: GrantFiled: June 24, 1999Date of Patent: May 8, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Lawson Gibson Wideman, Paul Harry Sandstrom
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Patent number: 6221990Abstract: The present application relates to polymeric resinous material comprising (1) from 15 to 39 weight percent units derived from limonene; (2) from 15 to 39 weight percent units derived from dicyclopentadiene; and (3) from 46 to 70 weight percent units derived from tertiary-butyl styrene; wherein the sum of the weight percent units derived from limonene and dicyclopentadiene range from 30 to 54 weight percent units of the resin.Type: GrantFiled: February 16, 1999Date of Patent: April 24, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Lawson Gibson Wideman, Paul Harry Sandstrom, Joseph Miles Ruscak
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Patent number: 6214919Abstract: The present application relates to a pneumatic tire having a tread comprised of (a) a diene-based elastomer containing olefinic unsaturation and (b) from 1 to 50 phr of polymeric resinous material comprising from about 4 to about 60 weight percent units derived from piperylene, from about 10 to about 35 weight percent units derived from 2-methyl-2-butene and from about 18 to about 50 weight percent units derived from dicyclopentadiene.Type: GrantFiled: July 1, 1999Date of Patent: April 10, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: James Anderson Schlademan, Lawson Gibson Wideman, Edward John Blok, Paul Harry Sandstrom, Angelo Bergomi, Mark Leslie Kralevich, Jr.
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Patent number: 6204320Abstract: The subject invention discloses a liquid isoprene-butadiene rubber (IBR) which is particularly valuable for use in making treads for high performance automobile tires, including race tires, that exhibit superior dry traction characteristics and durability. The isoprene-butadiene rubber of this invention is a liquid at room temperature and is comprised of repeat units which are derived from about 5 weight percent to about 95 weight percent isoprene and from about 5 weight percent to about 95 weight percent 1,3-butadiene, wherein the repeat units derived from isoprene and 1,3-butadiene are in essentially random order. The IBR of this invention also has a low number average molecular weight which is within the range of about 3,000 to about 50,000 and has a glass transition temperature which is within the range of about −50° C. to about 20° C.Type: GrantFiled: February 12, 1999Date of Patent: March 20, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Wen-Liang Hsu, Adel Farhan Halasa
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Patent number: 6201059Abstract: This invention relates to a polymeric resin which contains from 35 to 65 percent by weight of polymeric units derived from dicyclopentadiene and from 65 to 35 percent by weight of polymeric units derived from beta-pinene. The polymeric resins are particularly useful in improving traction of the rubber when used in tire treads.Type: GrantFiled: August 19, 1999Date of Patent: March 13, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Mark Leslie Kralevich, Jr., Edward John Blok, Paul Harry Sandstrom
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Patent number: 6048943Abstract: The present invention relates to titanate compounds of the formula ##STR1## wherein R is selected from the group consisting of alkylene groups having from 1 to 15 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms and x is an integer of from 2 to 8.Type: GrantFiled: April 7, 1998Date of Patent: April 11, 2000Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Lawson Gibson Wideman, Paul Harry Sandstrom, Mark Leslie Kralevich, Jr.