Patents by Inventor Virginia R. Cross
Virginia R. Cross 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: 5552035Abstract: A process for producing zeolite aggregates involves providing a formable paste composed of zeolite, a binder composed of an organic/metal oxide containing aluminum, a peptizing agent and water; forming the paste into an aggregate, preferably by extruding into an extrudate; curing the aggregate; hydro-thermally calcining the aggregate; and washing the hydro-thermally calcined aggregate with a washing medium, preferably followed by rinsing with a rinsing medium to remove residual washing medium from the aggregate. The washed and rinsed aggregate may then be permitted to equilibrate or is subjected to a drying procedure. Preferably, the washed and rinsed aggregate is again subjected to curing/hydro-thermal calcining.Type: GrantFiled: July 6, 1994Date of Patent: September 3, 1996Assignee: Exxon Research and Engineering CompanyInventors: Mark J. Potter, Jar-Lin Kao, Virginia R. Cross, Thomas H. Vanderspurt, Edward K. Dienes, Robert E. Riley, Freddie L. Tungate, Arie Bortinger
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Patent number: 5548014Abstract: Disclosed are hot melt adhesives comprising tackifier and a high M.sub.w, narrow MWD, narrow CD ethylene/alpha-olefin copolymer(s) and a low M.sub.w, narrow MWD, narrow MWD ethylene/alpha-olefin copolymer prepared with either supported or unsupported cyclopentadienyl derivatives of Group IV and catalysts for applications in hot melt adhesives, particularly in automotive product assembly, packaging and food packaging. These ethylene copolymers have a M.sub.w ranging from about 20,000 to about 100,000, an MWD of less than 6 and 3 to 17 mole percent comonomer, and composition distribution breadth index above 70 percent. These ethylene copolymer blends have a M.sub.w ranging from about 20,000 to about 100,000 and an MWD of less than 6. In addition, the copolymer blends have comonomer mole percent ranging from about 3 to about 17.Type: GrantFiled: March 20, 1995Date of Patent: August 20, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Mun F. Tse, Virginia R. Cross, Barry C. Trudell
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Patent number: 5348924Abstract: A process for producing zeolite aggregates involves providing a formable paste composed of zeolite, a binder composed of an organic/metal oxide containing aluminum, a peptizing agent and water; forming the paste into an aggregate, preferably by extruding into an extrudate; curing the aggregate; hydro-thermally calcining the aggregate; and washing the hydro-thermally calcined aggregate with a washing medium, preferably followed by rinsing with a rinsing medium to remove residual washing medium from the aggregate. The washed and rinsed aggregate may then be permitted to equilibrate or is subjected to a drying procedure. Preferably, the washed and rinsed aggregate is again subjected to curing/hydro-thermal calcining.Type: GrantFiled: February 23, 1993Date of Patent: September 20, 1994Assignee: Exxon Research & Engineering Co.Inventors: Mark J. Potter, Jar-Lin Kao, Virginia R. Cross, Thomas H. Vanderspurt, Edward K. Dienes, Robert E. Riley, Freddie L. Tungate, Arie Bortinger
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Patent number: 5110685Abstract: The invention relates to certain low friction abrasion resistant polymer coatings. The polymer coatings consist of thermoplastic materials based on blends of elastomers with high density polyethylene comprising a high molecular weight component. The appropriate balance of crystallinity, durability and flexibility can be achieved by selecting the proper amount of low, medium and high molecular weight high density polyethylene. The coating is particularly useful for weatherstripping material for automobile window channels.Type: GrantFiled: May 18, 1990Date of Patent: May 5, 1992Assignee: Exxon Chemical Patents, Inc.Inventors: Virginia R. Cross, Cindy B. Shulman
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Patent number: 4914068Abstract: This invention relates to methods for dispersing Group-VIII and other metals containing zeolites, particularly large pore zeolites.Type: GrantFiled: March 21, 1988Date of Patent: April 3, 1990Assignee: Exxon Chemical Patents Inc.Inventors: Virginia R. Cross, Jar L. Kao, Thomas H. Vanderspurt, Murray Nadler, Theodorus M. Wortel
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Patent number: 4648960Abstract: A class of bound catalysts which exhibit superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected from Group IA and calcium and barium cations and containing well dispersed particles of at least one Group VIII noble metal where at least 90% of the noble metal thereof is dispersed in the form of particles having a diameter less than 7 .ANG.. The catalysts may also be identified as type L zeolites loaded with at least one Group VIII noble metal which have a terminal cracking index (as a measure of production of pentanes versus butanes from hexane) of at least 1.5.Type: GrantFiled: March 10, 1986Date of Patent: March 10, 1987Assignee: Exxon Research and Engineering CompanyInventors: Kenneth R. Poeppelmeier, Walter G. Funk, John J. Steger, Shun C. Fung, Virginia R. Cross, Jar-Lin Kao
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Patent number: 4634517Abstract: A class of catalysts which exhibit superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected from Group IA and calcium and barium cations and containing well dispersed particles of at least one Group VIII noble metal where at least 90% of the noble metal prior to reduction thereof is dispersed in the form of particles having a diameter less than 7 .ANG.. The catalysts may also be identified as type L zeolites loaded with at least one Group VIII noble metal which have a terminal cracking index (as a measure of production of pentanes versus butanes from hexane) of at least 1.5.Type: GrantFiled: March 10, 1986Date of Patent: January 6, 1987Assignee: Exxon Research and Engineering CompanyInventors: Samuel J. Tauster, Angelo A. Montagna, John J. Steger, Shun C. Fung, Virginia R. Cross
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Patent number: 4595668Abstract: A class of bound catalysts which exhibit superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected from Group IA and calcium and barium cations and containing well dispersed particles of at least one Group VIII noble metal where at least 90% of the noble metal thereof is dispersed in the form of particles having a diameter less than 7 .ANG.. The catalysts may also be identified as type L zeolites loaded with at least one Group VIII noble metal which have a terminal cracking index (as a measure of production of pentanes versus butanes from hexane) of at least 1.5.Type: GrantFiled: November 10, 1983Date of Patent: June 17, 1986Assignee: Exxon Research and Engineering Co.Inventors: Kenneth R. Poeppelmeier, Walter G. Funk, John J. Steger, Shun C. Fung, Virginia R. Cross, Jar-Lin Kao
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Patent number: 4595670Abstract: A class of catalysts which exhibit superior activity maintenance in dehydrocyclization reactions are defined as a type L zeolite having exchangeable cations of which at least 75% are selected from Group IA and calcium and barium cations and containing well dispersed particles of at least one Group VIII noble metal where at least 90% of the noble metal prior to reduction thereof is dispersed in the form of particles having a diameter less than 7 .ANG.. The catalysts may also be identified as type L zeolites loaded with at least one Group VIII noble metal which have a terminal cracking index (as a measure of production of pentanes versus butanes from hexane) of at least 1.5.Type: GrantFiled: November 10, 1983Date of Patent: June 17, 1986Assignee: Exxon Research and Engineering Co.Inventors: Samuel J. Tauster, Angelo A. Montagna, John J. Steger, Shun C. Fung, Virginia R. Cross
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Patent number: 4310600Abstract: The present invention is directed to a clear, flexible, coated, biaxially oriented polyester film comprising a polyester film support and a radiation curable silicone coating on at least a portion of the support. The radiation curable silicone coating is derived from a dispersion of colloidal silica in an alcohol-water solution of the partial condensate of specified silanols and multifunctional acrylate monomers and oligomers with optional photoinitiators.Type: GrantFiled: August 29, 1980Date of Patent: January 12, 1982Assignee: American Hoechst Corp.Inventor: Virginia R. Cross