Patents by Inventor Everett Crews
Everett Crews 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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Publication number: 20170190619Abstract: The present description relates to method of initiating the curing of carboxylic acid-treated material compositions to enable an initial lowering of the viscosity and stiffness of the material for low temperature wetting and coating of solid surfaces, for paving, for waterproofing, for roofing, and for underlayment applications. The present description relates to ecologically sound, non-toxic technology that enables a practitioner to improve the low-temperature cracking properties of a material or material composition while also inducing a rapid increase in the high-temperature stiffness and viscosity of the material or material composition, and to rapid cure and strength development of finished product composition for application in paving, roofing, adhesive interlayer bonding, roll finishing, blow-molding, water-proofing, and underlayment.Type: ApplicationFiled: December 22, 2016Publication date: July 6, 2017Inventor: Everett Crews
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Patent number: 9260608Abstract: A bituminous composition comprising a bitumen emulsion in an amount from about 2% to about 10% by total weight of the bituminous composition, and aggregate in an amount from about 90% to about 99% by total weight of the bituminous composition, wherein the bituminous composition is at a temperature range of about 50° C. to about 140° C. The bitumen emulsion comprises hard bitumen in an amount from about 50% to about 75% by total weight of the bitumen emulsion, the hard bitumen being characterized by a penetration number of about 100 dmm or less at 25° C. as determined according to the AASHTO Method T49, and an emulsifier in an amount from about 0.05% to about 2% by total weight of the bitumen emulsion, the emulsifier having a Hildebrand solubility parameter of at least of about 19 (MPa)½. Also disclosed are the methods of producing and using such bituminous compositions.Type: GrantFiled: April 19, 2013Date of Patent: February 16, 2016Assignee: Ingevity South Carolina, LLCInventors: Everett Crews, Iain Jack, Tom Girardeau
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Publication number: 20150361318Abstract: The present description provides composite polymer compositions comprising a plastomeric material, an elastomeric material or a combination thereof, and an additive, for example, a dispersant or surface active agent (i.e., surfactant). The description also provides methods of manufacturing and using the same, e.g., to improve or modify the performance of adhesive materials, such as, for example, asphalt.Type: ApplicationFiled: June 16, 2015Publication date: December 17, 2015Inventors: Everett CREWS, Tejash GANDHI, Peter SCHILLING, Stefan SCHILLING, James E. Wurst, Roger K. CHATTERJEE
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Publication number: 20130228098Abstract: A bituminous composition comprising a bitumen emulsion in an amount from about 2% to about 10% by total weight of the bituminous composition, and aggregate in an amount from about 90% to about 99% by total weight of the bituminous composition, wherein the bituminous composition is at a temperature range of about 50° C. to about 140° C. The bitumen emulsion comprises hard bitumen in an amount from about 50% to about 75% by total weight of the bitumen emulsion, the hard bitumen being characterized by a penetration number of about 100 dmm or less at 25° C. as determined according to the AASHTO Method T49, and an emulsifier in an amount from about 0.05% to about 2% by total weight of the bitumen emulsion, the emulsifier having a Hildebrand solubility parameter of at least of about 19 (MPa)½. Also disclosed are the methods of producing and using such bituminous compositions.Type: ApplicationFiled: April 19, 2013Publication date: September 5, 2013Inventors: Everett CREWS, Iain JACK, Tom GIRARDEAU
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Patent number: 8444760Abstract: This disclosure relates to bituminous compositions and methods of producing the same. More particularly, the disclosure relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: GrantFiled: December 2, 2011Date of Patent: May 21, 2013Assignee: MeadWestvaco CorporationInventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20120125232Abstract: This disclosure relates to bituminous compositions and methods of producing the same. More particularly, the disclosure relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: ApplicationFiled: December 2, 2011Publication date: May 24, 2012Applicant: MEADWESTVACO CORPORATIONInventors: Everett Crews, Tom Girardeau, Iain Jack
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Patent number: 8088210Abstract: A bituminous composition including, based on total weight of the bituminous composition, (a) hard bitumen in an amount of 0.5% to 7.5% by weight, the hard bitumen being characterized by a penetration number of 100 dmm or less at 25° C. as determined according to the American Association of State Highway and Transportation Officials (AASHTO) Method T49; (b) emulsifier in an amount of 0.0005% to 0.2% by weight, wherein the emulsifier has a Hildebrand solubility parameter of at least 19 (MPa)1/2; (c) water; and (d) aggregate in an amount of 90% to 99% by weight, the aggregate having an aggregate surface that is wetted with the hard bitumen, wherein the bituminous composition is at a temperature ranging from 50° C. to 140° C.Type: GrantFiled: May 26, 2011Date of Patent: January 3, 2012Assignee: MeadWestvaco CorporationInventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20110218274Abstract: A bituminous composition including, based on total weight of the bituminous composition, (a) hard bitumen in an amount of 0.5% to 7.5% by weight, the hard bitumen being characterized by a penetration number of 100 dmm or less at 25° C. as determined according to the American Association of State Highway and Transportation Officials (AASHTO) Method T49; (b) emulsifier in an amount of 0.0005% to 0.2% by weight, wherein the emulsifier has a Hildebrand solubility parameter of at least 19 (MPa)1/2; (c) water; and (d) aggregate in an amount of 90% to 99% by weight, the aggregate having an aggregate surface that is wetted with the hard bitumen, wherein the bituminous composition is at a temperature ranging from 50° C. to 140° C.Type: ApplicationFiled: May 26, 2011Publication date: September 8, 2011Inventors: Everett Crews, Tom Girardeau, Iain Jack
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Patent number: 7993442Abstract: A bituminous composition with improved paving performance, comprising a high-concentration-emulsifier bituminous emulsion is disclosed. The high-concentration-emulsifier bitumen emulsion has a higher content of surfactant than the conventional bitumen emulsion, thus facilitating the use of low levels of emulsion in the finished bituminous paving composition. Additionally, the high-concentration-emulsifier bitumen emulsion has superior surfactant dispersion property compared to the inverted bitumen dispersion, thereby enhancing the mixing and coating performance of the bituminous composition. The disclosed bituminous compositions may be used in a pavement construction at a much lower temperatures range compared to the conventional hot-mix bituminous composition, yet it develops adhesive strength and load-bearing strength properties at rates comparable to those of hot mix bituminous paving compositions.Type: GrantFiled: February 18, 2010Date of Patent: August 9, 2011Assignee: MeadWestvaco CorporationInventors: Everett Crews, Jonathan S. Maclver
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Patent number: 7972429Abstract: This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: GrantFiled: October 15, 2010Date of Patent: July 5, 2011Assignee: MeadWestvaco CorporationInventors: Everett Crews, Tom Girardeau, Iain Jack
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Patent number: 7951857Abstract: The present invention relates to bituminous compositions suitable for use in paving applications containing water-in-oil bitumen dispersion of paving grade bitumen such as penetration-graded, viscosity-graded and/or penetration-graded varieties that is substantially free of volatile solvents and made by controlling temperature-dependent interfacial rheology through the use of selected surfactants. The invention paving compositions are suitable for use in the construction of load-bearing, high-traffic pavements at a temperature range lower than that required for conventional hot-mix bituminous paving compositions, yet with similar or superior compaction to densities property and at least equal cure rate.Type: GrantFiled: March 26, 2007Date of Patent: May 31, 2011Assignee: MeadWestvaco CorporationInventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20110082240Abstract: A rosin oil-modified bitumen compound having a significantly reduced viscosity compared to the conventional bitumen at same temperature, yet providing the bituminous composition of comparable indirect tensile strength and performance is disclosed. The bituminous composition made of the disclosed modified bitumen allows the production and application at lower temperatures than the conventional bituminous composition, and thereby a reduction in energy consumption and a lower emission level of organic volatiles and fumes.Type: ApplicationFiled: April 28, 2009Publication date: April 7, 2011Applicant: Meadwestvaco CorporationInventor: Everett Crews
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Patent number: 7905949Abstract: This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: GrantFiled: September 27, 2007Date of Patent: March 15, 2011Assignee: Meadwestvaco CorporationInventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20110021672Abstract: This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: ApplicationFiled: October 15, 2010Publication date: January 27, 2011Inventors: Everett Crews, Tom Girardeau, Iain Jack
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Patent number: 7833338Abstract: The present invention relates to bituminous compositions suitable for use in paving applications containing bitumen emulsion of performance-grade bitumen that is substantially free of volatile solvents and made by controlling temperature-dependent interfacial rheology through the use of selected emulsifiers. The invention bituminous paving compositions are suitable for the construction of load-bearing pavements with improved compaction to densities similar or superior to those achieved in the conventional hot mix bituminous paving compositions. Cure rate of the invention bituminous compositions is higher than those of cold mix bitumen emulsion-based paving compositions, and at least equal to those of hot mix bituminous paving compositions. Additionally, the invention bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to those of hot mix bituminous paving compositions, and at rates faster than those of cold mix bituminous paving compositions.Type: GrantFiled: September 10, 2007Date of Patent: November 16, 2010Assignee: MeadWestvaco Packaging Systems, LLCInventors: Everett Crews, Tom Girardeau, Iain Jack
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Patent number: 7789956Abstract: This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: GrantFiled: September 27, 2007Date of Patent: September 7, 2010Assignee: MeadWestvaco CorporationInventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20100206196Abstract: A bituminous composition with improved paving performance, comprising a high-concentration-emulsifier bituminous emulsion is disclosed. The high-concentration-emulsifier bitumen emulsion has a higher content of surfactant than the conventional bitumen emulsion, thus facilitating the use of low levels of emulsion in the finished bituminous paving composition. Additionally, the high-concentration-emulsifier bitumen emulsion has superior surfactant dispersion property compared to the inverted bitumen dispersion, thereby enhancing the mixing and coating performance of the bituminous composition. The disclosed bituminous compositions may be used in a pavement construction at a much lower temperatures range compared to the conventional hot-mix bituminous composition, yet it develops adhesive strength and load-bearing strength properties at rates comparable to those of hot mix bituminous paving compositions.Type: ApplicationFiled: February 18, 2010Publication date: August 19, 2010Inventors: Everett Crews, Jonathan S. Maclver
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Publication number: 20080194738Abstract: The present invention relates to bituminous compositions suitable for use in paving applications containing water-in-oil bitumen dispersion of paving grade bitumen such as penetration-graded, viscosity-graded and/or penetration-graded varieties that is substantially free of volatile solvents and made by controlling temperature-dependent interfacial rheology through the use of selected surfactants. The invention paving compositions are suitable for use in the construction of load-bearing, high-traffic pavements at a temperature range lower than that required for conventional hot-mix bituminous paving compositions, yet with similar or superior compaction to densities property and at least equal cure rate.Type: ApplicationFiled: March 26, 2007Publication date: August 14, 2008Applicant: MeadWestvaco CorporationInventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20080069638Abstract: This invention relates to bituminous compositions and methods of producing the same, More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions.Type: ApplicationFiled: September 27, 2007Publication date: March 20, 2008Inventors: Everett Crews, Tom Girardeau, Iain Jack
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Publication number: 20080060551Abstract: The present invention relates to bituminous compositions suitable for use in paving applications containing bitumen emulsion of performance-grade bitumen that is substantially free of volatile solvents and made by controlling temperature-dependent interfacial rheology through the use of selected emulsifiers. The invention bituminous paving compositions are suitable for the construction of load-bearing pavements with improved compaction to densities similar or superior to those achieved in the conventional hot mix bituminous paving compositions. Cure rate of the invention bituminous compositions is higher than those of cold mix bitumen emulsion-based paving compositions, and at least equal to those of hot mix bituminous paving compositions. Additionally, the invention bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to those of hot mix bituminous paving compositions, and at rates faster than those of cold mix bituminous paving compositions.Type: ApplicationFiled: September 10, 2007Publication date: March 13, 2008Inventors: Everett Crews, Tom Girardeau, Iain Jack