Patents by Inventor Richard R. Nicholson
Richard R. Nicholson 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: 6035591Abstract: Disclosed is a method for providing an improved cementitious product which includes improved surface characteristics such as skid resistance, as well as improved structural characteristics such as flexural toughness. The product is provided by the inclusion of skid-resistant particles within an uncured cement product, such that the product eventually cures with the skid-resistant particles fixed at and adjacent to the surface, providing improved skid resistance to the cement product its supporting surface, which could be a pedestrian sidewalk, steps, a vehicle roadway, handicapped ramps, or other surfaces where skid resistance is required. The product is desirably softer in structure than traditional concrete structures to allow for desirable wearing by traffic thereon to continuously expose new rubber particles, while still having integral properties which discourage pullout of the particles.Type: GrantFiled: December 23, 1998Date of Patent: March 14, 2000Inventors: James K. Hicks, John O. Winchester, Richard R. Nicholson
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Patent number: 5918429Abstract: Disclosed is a method for providing an improved cementitious product which includes improved surface characteristics such as skid resistance, as well as improved structural characteristics such as flexural toughness. The product is provided by the inclusion of skid-resistant particles within an uncured cement product, such that the product eventually cures with the skid-resistant particles fixed at and adjacent to the surface, providing improved skid resistance to the cement product its supporting surface, which could be a pedestrian sidewalk, steps, a vehicle roadway, handicapped ramps, or other surfaces where skid resistance is required. The product is desirably softer in structure than traditional concrete structures to allow for desirable wearing by traffic thereon to continuously expose new rubber particles, while still having integral properties which discourage pullout of the particles.Type: GrantFiled: August 13, 1997Date of Patent: July 6, 1999Assignee: The Quikrete CompaniesInventors: James K. Hicks, John O. Winchester, Richard R. Nicholson
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Patent number: 4623682Abstract: Cement mix, particularly concrete mixes, for high compressive strength including early compressive strength, have extended workability without substantial loss in rate of hardening when containing an admixture combination of a sulfonated naphthalene-formaldehyde condensated and fractionated sulfonated lignin, such as ultrafiltered lignosulfonate.Type: GrantFiled: October 1, 1985Date of Patent: November 18, 1986Assignee: Sandoz Ltd.Inventors: Richard R. Nicholson, Arthur H. Gerber
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Patent number: 4488910Abstract: A hydraulic cement mix including hydraulic cement, aggregate, sufficient water to effect hydraulic setting of the cement, and an admixture comprising a mixture selected from an olefin sulfonate, an alkylarylsulfonate, an alkyloamide, an ethoxylated fatty amine, an alkanolamine, and a hydrolyzed starch having a dextrose equivalent value in the range of commercial corn syrups, the admixture being present in an amount sufficient to increase the compressive strength of nonplastic cementitious mixes such as those used in making masonry units, pipe and the like. Generally, the additive is present in an amount between 0.005 and 0.5 weight percent based on weight of cement.Type: GrantFiled: November 16, 1983Date of Patent: December 18, 1984Assignee: Martin Marietta CorporationInventors: Richard R. Nicholson, Sally L. Vista, Reynold A. Berkey
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Patent number: 4345002Abstract: An intumescent composition containing a cyclic nitrogen compound, a hydroxy-containing organo-phosphorus compound, an organo-phosphorus acid, and water, wherein:(a) said cyclic nitrogen compound is: ##STR1## wherein a, b, and c, are integers selected from the group consisting of 1 and 2, a plus b plus c equal about 3 to 6, and wherein and X, X', and X" are hydrogen or --CH.sub.3 ;(b) said hydroxy-containing organo-phosphorus compound is selected from the group consisting of: ##STR2## and mixtures thereof wherein R.sup.1, R.sup.2 and R.sup.3 are lower alkyl or haloalkyl radicals and R.sup.4 and R.sup.5 are hydrogen, lower alkyl or haloalkyl radicals;(c) said acid is selected from the group consisting of: ##STR3## and mixtures thereof, wherein R.sup.6, R.sup.7, R.sup.8 and R.sup.9 are hydrogen, lower alkyl, haloalkyl or hydroxyalkyl, R.sup.10 and R.sup.11 are lower alkyl, haloalkyl, hydroxy-polyalkyleneoxy, alkoxy, hydroxyalkoxy or haloalkoxy, ##STR4## wherein R.sup.Type: GrantFiled: September 17, 1979Date of Patent: August 17, 1982Assignee: Great Lakes Chemical CorporationInventors: Ray E. Smith, Jayendra G. Shukla, Richard R. Nicholson
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Patent number: 4339357Abstract: A compound of the formula ##STR1## wherein a, b, c, d, and n are integers; a is from 1 to 3; b and c are independently selected from the group consisting of 0 and 1; d and n are independently selected from the group consisting of 1 and 2; R.sup.1 and R.sup.4 are independently selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and haloalkyl of 1 to 4 carbon atoms and 1 to 2 halogen atoms; and R.sup.2 and R.sup.3 are independently selected from the group consisting of haloalkyl containing 1 to about 4 carbon atoms and 1 to about 2 halogen atoms selected from the group consisting of chlorine, bromine, and mixtures thereof.The use of this compound with specified amounts of a certain methylated methylol melamine and water allows one to produce an intumescent composition which is substantially superior to prior art intumescent compositions.Type: GrantFiled: September 17, 1979Date of Patent: July 13, 1982Assignee: Great Lakes Chemical CorporationInventors: Richard R. Nicholson, Ray E. Smith, Jayendra G. Shukla
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Patent number: 4265791Abstract: A compound of the formula ##STR1## wherein a, b, c, d, and n are integers; a is from 1 to 3; b and c are independently selected from the group consisting of 0 and 1; d and n are independently selected from the group consisting of 1 and 2; R.sup.1 and R.sup.4 are independently selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and haloalkyl of 1 to 4 carbon atoms and 1 to 2 halogen atoms; and R.sup.2 and R.sup.3 are independently selected from the group consisting of haloalkyl containing 1 to about 4 carbon atoms and 1 to about 2 halogen atoms selected from the group consisting of chlorine, bromine, and mixtures thereof.The use of this compound with specified amounts of a certain methylated methylol melamine and water allows one to produce an intumescent composition which is substantially superior to prior art intumescent compositions.Type: GrantFiled: December 6, 1979Date of Patent: May 5, 1981Assignee: Velsicol Chemical CorporationInventors: Richard R. Nicholson, Ray E. Smith, Jayendra G. Shukla
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Patent number: 4226907Abstract: Disclosed is a flame retardant article comprising an article treated with a flame-retardingly effective amount of an intumescent composition comprising a hydroxyalkyl amino alkyl phosphonic acid, a cyclic nitrogen compound and water.Type: GrantFiled: September 17, 1979Date of Patent: October 7, 1980Assignee: Velsicol Chemical CorporationInventors: Kenneth J. Sienkowski, Richard R. Nicholson, Ray E. Smith
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Patent number: 4221837Abstract: Disclosed is a flame retardant article comprised of an article treated with a flame-retardingly effective amount of an intumescent composition comprising a cyclic nitrogen compound, a phosphorous polyol, a phosphorous acid and water.Type: GrantFiled: September 17, 1979Date of Patent: September 9, 1980Assignee: Velsicol Chemical CorporationInventors: Richard R. Nicholson, Ray E. Smith, Jayendra G. Shukla
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Patent number: 4210452Abstract: There is provided an intumescent composition comprising a cyclic nitrogen compound, a phosphorus polyol, a phosphorus acid, and water.Type: GrantFiled: December 6, 1978Date of Patent: July 1, 1980Assignee: Veesicol Chemical CorporationInventors: Richard R. Nicholson, Ray E. Smith, Jayendra G. Shukla
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Patent number: 4205022Abstract: A compound of the formula ##STR1## wherein a, b, c, d, and n are integers; a is from 1 to 3; b and c are independently selected from the group consisting of 0 and 1; d and n are independently selected from the group consisting of 1 and 2; R.sup.1 and R.sup.4 are independently selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and haloalkyl of 1 to 4 carbon atoms and 1 to 2 halogen atoms; and R.sup.2 and R.sup.3 are independently selected from the group consisting of haloalkyl containing 1 to about 4 carbon atoms and 1 to about 2 halogen atoms selected from the group consisting of chlorine, bromine, and mixtures thereof.The use of this compound with specified amounts of a certain methylated methylol melamine and water allows one to produce an intumescent composition which is substantially superior to prior art intumescent compositions.Type: GrantFiled: September 5, 1978Date of Patent: May 27, 1980Assignee: Velsicol Chemical CorporationInventors: Richard R. Nicholson, Ray E. Smith, Jayendra G. Shukla
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Patent number: 4201593Abstract: An intumescent composition comprising a hydroxyalkyl amino alkyl phosphonic acid, a cyclic nitrogen compound, and water, wherein said phosphonic acid is selected from the group consisting of ##STR1## wherein x, y, and n are integers independently selected from the group consisting of 1 and 2, q is an integer selected from the group consisting of 1, 2, and 3, z is an integer selected from the group consisting of 0 and 1, R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, alkyl radicals containing from about 1 to about 6 carbon atoms, and haloalkyl radicals containing from about 1 to about 6 carbon atoms, and R.sup.3 is selected from the group consisting of alkyl radicals containing from about 1 to about 6 carbon atoms and haloalkyl radicals containing from about 3 to about 6 carbon atoms, provided that the total number of carbon atoms in the R.sup.1, R.sup.2, and R.sup.Type: GrantFiled: December 6, 1978Date of Patent: May 6, 1980Assignee: Velsicol Chemical CorporationInventors: Kenneth J. Sienkowski, Richard R. Nicholson, Ray E. Smith, Jayendra G. Shukla
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Patent number: 4201677Abstract: An intumescent composition comprising a cyclic nitrogen compound, an acid selected from the group consisting of phosphorous acid, phosphoric acid, and mixtures thereof, water, and an hydroxy-containing organo-phosphorus compound, wherein:(a) said cyclic nitrogen compound is ##STR1## wherein a, b, and c are integers selected from the group consisting of 1 and 2, a plus b plus c equal about 3 to 6, and X, X', and X" are independently selected from the group consisting of hydrogen and --CH.sub.3 ;(b) said hydroxy-containing organo-phosphorus compound is selected from the group consisting of ##STR2## and mixtures thereof, wherein d is an integer of from 0 to 2, e is an integer of from 0 to 2, f is an integer of from 1 to 3, and d plus e plus f equal 3; z is an integer of 0 to 1; x is an integer of 1 to 2, y is an integer of 1 to 2, and x plus y plus z equal 3; R.sup.1, R.sup.2, and R.sup.Type: GrantFiled: September 5, 1978Date of Patent: May 6, 1980Assignee: Velsicol Chemical CorporationInventors: Jayendra G. Shukla, Ray E. Smith, Richard R. Nicholson
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Patent number: 4160795Abstract: Disclosed are novel compounds of the formula: ##STR1## WHEREIN EACH Z is independently selected from the group consisting of hydrogen and halogen; Y is oxygen or sulfur; n is an integer of from 1 to 3; a, b, and c are integers of from 0 to 1; n+a+b+c=4; and wherein X, X', X" are independently selected from the group consisting of hydrogen, halogen, alkyl of 1 to about 8 carbon atoms and --OC(O)R, provided that at least one of said X, X', X" substituents is --OC(O)R, and R is independently selected from the group consisting of alkyl of 1 to about 18 carbon atoms, haloalkyl of 1 to about 18 carbon atoms, alkoxyalkyl of from 1 to about 18 carbon atoms, aryl of from 6 to about 18 carbon atoms, and haloaryl of from about 6 to about 18 carbon atoms.The above compounds may be topically applied to polyester-containing textile materials in order to flame retard them; and the materials so treated have a durable flame retardance.Type: GrantFiled: January 13, 1978Date of Patent: July 10, 1979Assignee: Velsicol Chemical CorporationInventors: James A. Albright, Richard R. Nicholson