Patents by Inventor John M. Wilkerson, III
John M. Wilkerson, III 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).
-
Patent number: 6897186Abstract: An excavation fluid composition useful for enlarging a cavity in the earth includes a synthetic polymer and sodium silicate. The excavation fluid composition is formulated so as to enable the fluid in contact with unstable or sandy soils in the selected areas of the excavation to react and form silicate-based derivatives with lesser solubility, and movement and thus improve soil stability at the excavation wall.Type: GrantFiled: June 13, 2001Date of Patent: May 24, 2005Assignee: KG International, LLCInventors: K. Gifford Goodhue, Jr., Max M. Holmes, Clinton Scott Norman, John M. Wilkerson, III
-
Patent number: 6248697Abstract: Compositions and methods useful in creating boreholes, tunnels and other excavations in unstable soils and earth formations, especially those composed partially or wholly of sand, gravel or other granular or permeable material are disclosed. The fluids include a polymer, and a soluble silicate ion source. The fluids of the invention, when used according to the methods of the invention, have unique dual functionality as excavating fluids and as earth-grouting or soil-hardening compositions.Type: GrantFiled: February 12, 1998Date of Patent: June 19, 2001Assignee: KB Technologies, Ltd.Inventors: K. Gifford Goodhue, Jr., Max M. Holmes, Clinton Scott Norman, John M. Wilkerson, III
-
Patent number: 5990233Abstract: The present invention relates to acrylate-based rheology modifiers for use in aqueous compositions having pH of less than or equal to 9 and to the rheologically-modified aqueous compositions, which modifiers contain an emulsion which is prepared by single-stage emulsion polymerization of a C.sub.2 -C.sub.6 alkyl ester of acrylic acid and/or a C.sub.1 -C.sub.6 alkyl ester of methacrylic acid, a monomer chosen from a vinyl-substituted heterocyclic compound containing at least one of a nitrogen or sulfur atom, (meth)acrylamide, a mono- or di- (C.sub.1 -C.sub.4)alkylamino (C.sub.1 -C.sub.4)alkyl (meth)acrylate, a mono or di-(C.sub.1 -C.sub.4)alkylamino (C.sub.1 -C.sub.4)alkyl (meth)acrylamide, and optionally cross-linking monomers and/or associative monomers, in the presence of water, a surfactant, a free-radical initiator and an alcohol selected from C.sub.2 -C.sub.Type: GrantFiled: August 16, 1996Date of Patent: November 23, 1999Assignee: National Starch and Chemical Investment Holding CorporationInventors: Milagros C. Barron, Daniel W. Verstrat, John M. Wilkerson, III
-
Patent number: 5532036Abstract: Methods for reducing volatile organic chemical contents of carpet are disclosed which include fabricating the carpet from a plurality of yarn loops or tufts inserted into the backing of the carpet and then coating the backing with a coating composition which contain polymers characterized by an extremely low volatile organic chemical content. Accordingly, the coating compositions themselves contain reduced levels of volatile organic chemicals and, as such, the carpets coated therewith also contain reduced amounts of volatile organic chemicals.Type: GrantFiled: April 27, 1995Date of Patent: July 2, 1996Assignee: National Starch and Chemical Investment Holding CorporationInventors: John M. Wilkerson, III, Daniel W. Verstrat, Milagros C. Barron
-
Patent number: 5478881Abstract: Novel mono- and multi-functional non-ionic urethane monomers are prepared from surfactants comprising poly(ethylene oxide)(butylene oxide) copolymers, preferably C.sub.1 -C.sub.4 alkoxy-terminated, monohydric, ethylene oxide/butylene oxide block polymers and monoethylenically unsaturated aliphatic isocyanates. When polymerized with, e.g. acrylic acid or alkyl acrylates, these monomers provide copolymers exhibiting greatly enhanced thickening efficiency.Type: GrantFiled: April 27, 1995Date of Patent: December 26, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: John M. Wilkerson, III, Daniel W. Verstrat, Milagros C. Barron
-
Patent number: 5442091Abstract: Novel mono- and multi-functional non-ionic urethane monomers are prepared from surfactants comprising poly(ethylene oxide)(butylene oxide) copolymers, preferably C.sub.1 -C.sub.4 alkoxy-terminated, monohydric, ethylene oxide/butylene oxide block polymers and monoethylenically unsaturated aliphatic isocyanates. When polymerized with, e.g. acrylic acid or alkyl acrylates, these monomers provide copolymers exhibiting greatly enhanced thickening efficiency.Type: GrantFiled: November 15, 1994Date of Patent: August 15, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: John M. Wilkerson, III, Daniel W. Verstrat, Milagros C. Barron
-
Patent number: 5412142Abstract: Novel mono- and multi-functional non-ionic urethane monomers are prepared from surfactants comprising poly(ethylene oxide)(butylene oxide) copolymers, preferably C.sub.1 -C.sub.4 alkoxy-terminated, monohydric, ethylene oxide/butylene oxide block polymers and monoethylenically unsaturated aliphatic isocyanates. When polymerized with, e.g. acrylic acid or alkyl acrylates, these monomers provide copolymers exhibiting greatly enhanced thickening efficiency.Type: GrantFiled: December 22, 1993Date of Patent: May 2, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: John M. Wilkerson, III, Daniel W. Verstrat, Milagros C. Barron
-
Patent number: 5294692Abstract: Novel mono- and multi-functional non-ionic urethane monomers are prepared from surfactants comprising poly(ethylene oxide)(butylene oxide) copolymers, preferably C.sub.1 -C.sub.4 alkoxy-terminated, monohydric, ethylene oxide/butylene oxide block polymers and monoethylenically unsaturated aliphatic isocyanates. When polymerized with, e.g. acrylic acid or alkyl acrylates, these monomers provide copolymers exhibiting greatly enhanced thickening efficiency.Type: GrantFiled: June 30, 1993Date of Patent: March 15, 1994Assignee: National Starch and Chemical Investment Holding CorporationInventors: Milagros C. Barron, John M. Wilkerson, III, Daniel W. Verstrat
-
Patent number: 5013787Abstract: A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0-20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality; and about 0-1 percent of a copolymerizable polyethylenically unsatured monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.Type: GrantFiled: December 29, 1989Date of Patent: May 7, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Milagros C. Barron, Ronald L. Swope, John M. Wilkerson, III
-
Patent number: 5011978Abstract: A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0-20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality; and about 0-1 percent of a copolymerizable polyethylenically unsatured monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.Type: GrantFiled: December 29, 1989Date of Patent: April 30, 1991Assignee: National Starch and Chemical Investment Holding CorporationInventors: Milagros C. Barron, Ronald L. Swope, John M. Wilkerson, III, Charles G. Ruffner
-
Patent number: 4916183Abstract: A thickened aqueous copolymer solution useful for thickening and improving the properties of latex systems comprising a copolymer having as monomeric units: about 79-99 percent of a (meth)acrylic acid salt of sodium, potassium, or ammonium; about 0-20 percent of (meth)acrylic acid; about 0--20 percent of a lower alkyl ester of (meth)acrylic acid; about 1-21 percent of surfactant units selected from the urea reaction product of a monoethylenically unsaturated monoisocyanate with a nonionic surfactant having amine functionality; and about 0-1 percent of a copolymerizable polyethylenically unsatured monomer, said percentages being by weight based on the total weight of monomeric units in said copolymer.Type: GrantFiled: March 2, 1989Date of Patent: April 10, 1990Assignee: National Starch and Chemical CorporationInventors: Milagros C. Barron, Ronald L. Swope, John M. Wilkerson, III, Charles G. Ruffner
-
Patent number: 4743698Abstract: Acrylic emulsion copolymers are prepared by emulsion polymerization of (A) a surfactant monomer, (B) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid monomer, (C) a nonionic .alpha.,.beta.-ethylenically unsaturated monomer and (D) optionally a polyethylenically unsaturated cross-linking monomer. The surfactant monomer is prepared by condensing a polyhydric alcohol or primary amine-containing nonionic surfactant with a monoethylenically unsaturated monoisocyanate. At a low pH the copolymer may be in the form of an aqueous dispersion or latex, but thickens upon neutralization of at least some of the carboxyl groups.Type: GrantFiled: January 17, 1986Date of Patent: May 10, 1988Assignee: Alco Chemical Corp.Inventors: Charles G. Ruffner, John M. Wilkerson, III
-
Patent number: 4600761Abstract: Acrylic emulsion copolymers are prepared by emulsion polymerization of (A) a surfactant monomer, (B) an .alpha., .beta.-ethylenically unsaturated carboxylic acid monomer, (C) a nonionic .alpha., .beta.-ethylenically unsaturated monomer and (D) optionally a polyethylenically unsaturated cross-linking monomer. The surfactant monomer is prepared by condensing a polyhydric alcohol or primary amine-containing nonionic surfactant with a monoethylenically unsaturated monoisocyanate. At a low pH the copolymer may be in the form of an aqueous dispersion or latex, but thickens upon neutralization of at least some of the carboxyl groups.Type: GrantFiled: October 1, 1985Date of Patent: July 15, 1986Assignee: Alco Chemical CorporationInventors: Charles G. Ruffner, John M. Wilkerson, III
-
Patent number: RE33008Abstract: Acrylic emulsion copolymers are prepared by emulsion polymerization of (A) a surfactant monomer, (B) an .alpha..beta.-ethylenically unsaturated carboxylic acid monomer, (C) a nonionic.alpha..beta.-ethylenically unsaturated monomer and (D) optionally a polyethylenically unsaturated cross-linking monomer. The surfactant monomer is prepared by condensing a polyhydric alcohol or primary amine-containing nonionic surfactant with a monoethylenically unsaturated monoisocyanate. At a low pH the copolymer may be in the form of an aqueous dispersion or latex, but thickens upon neutralization of at least some of the carboxyl groups.Type: GrantFiled: June 13, 1988Date of Patent: August 1, 1989Assignee: Alco Chemical CorporationInventors: Charles G. Ruffner, John M. Wilkerson, III