Patents Represented by Attorney, Agent or Law Firm Heidi A. Boehlefeld
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Patent number: 6828405Abstract: A coating composition having excellent cure at ambient conditions and comprising (i) at least one imine, (ii) a polyisocyanate having an average of at least two isocyanate groups per molecule, (iii) at least one polyaspartic ester, and (iv) an isocyanate functional urethane; wherein the coating composition is substantially free of hydroxy functionality. Coatings produced from the coating composition of this invention exhibit superior performance on flexible substrates.Type: GrantFiled: May 23, 1995Date of Patent: December 7, 2004Assignee: The Sherwin-Williams CompanyInventor: Rubing Cai
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Patent number: 6057400Abstract: Compositions containing polyurethane dispersions and water reducible resins particularly suited for use as basecoats in low VOC basecoat/clearcoat vehicle coatings.Type: GrantFiled: December 23, 1998Date of Patent: May 2, 2000Assignee: The Sherwin-Williams CompanyInventors: Layton F. Kinney, Sharon K. Golas
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Patent number: 6022925Abstract: A process for producing a coating compositions for use over chalky substrates comprising a partial interpenetrating network of a polyurethane component and a waterborne polymer component, wherein the polyurethane component is prepared in the presence of the waterborne polymer component.Type: GrantFiled: June 23, 1998Date of Patent: February 8, 2000Assignee: The Sherwin-Williams CompanyInventors: Revathi R. Tomko, Louisa D. DiCola, Lorette Madigan, David J. Tetzlaf
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Patent number: 5998535Abstract: A polymeric dispersant, the dispersant being especially adapted for dispersing pigments therein and being compatible with a variety of film-forming polymers, said dispersant being the free radical addition polymerization reaction product of a mixture of monomers consisting essentially of:(a) from about 10% to about 40% by weight styrene; and(b) from about 10% to about 55% by weight of at least one alkyl methacrylate monomer having 1 to 8 carbon atoms in the alkyl group; and(c) from about 10% to about 55% by weight of at least one alkyl methacrylate monomer having greater than 8 carbon atoms in the alkyl group; and(d) from about 5% to about 25% by weight of at least one alkyl acrylate monomer having from 1 to 18 carbon atoms in the alkyl group; and(e) from about 7% to about 25% by weight of at least one hydroxy-functional ethylenically unsaturated monomer; and(f) from about 0.Type: GrantFiled: September 22, 1997Date of Patent: December 7, 1999Assignee: The Sherwin-Williams CompanyInventor: Gautam S. Haldankar
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Patent number: 5988455Abstract: The present invention relates to water-based, latex aerosol paint compositions.Type: GrantFiled: September 2, 1997Date of Patent: November 23, 1999Assignee: The Sherwin-Williams CompanyInventors: Paul D. Pearson, Patricia L. Redding
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Patent number: 5975346Abstract: A container for holding paint or other liquids and a method for making same. The container includes a body having a bottom wall and a side wall extending from the bottom wall along the periphery of the bottom wall which terminates in an upper rim. The container also includes an annular retaining ring secured to the upper rim. The annular retaining ring forms an outlet/inlet through which a liquid can be placed or removed from the container. The container further includes a lid pivotally and detachably mounted to the annular retaining ring for movement between an open position and closed position with respect to the outlet/inlet and for removing the lid from the annular retaining ring. The lid, body and annular retaining ring are individually molded and secured together by simple fastening means.Type: GrantFiled: June 30, 1997Date of Patent: November 2, 1999Assignee: The Sherwin-Williams CompanyInventors: Anthony Joseph Imperato, Donna Elizabeth Ward
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Patent number: 5973029Abstract: Corrosion-resistant latex coatings comprising a diphenyl sulfonate surfactant and a salt of 2-acrylamido-2-methylpropane sulfonic acid.Type: GrantFiled: October 12, 1993Date of Patent: October 26, 1999Assignee: The Sherwin-Williams CompanyInventors: Shui-Jen R. Hsu, Chia-Tien Chen
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Patent number: 5916960Abstract: A coating composition has storage stability, and provides a highly durable coating on various substrates, such as wood. It can be a clear coating or a staining composition. The critical components of the composition are a self-curing vinyl polymer, an ammonia-neutralized polyurethane and a water-soluble catalyst to promote rapid curing under ambient conditions.Type: GrantFiled: October 22, 1997Date of Patent: June 29, 1999Assignee: The Sherwin-Williams CompanyInventors: Dorey Lum, Prashant Patel
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Patent number: 5912299Abstract: Low VOC compositions for coating, staining and protecting porous substrates such as wood, concrete, cement, brick and the like, comprising aqueous dispersions of polyurethane-ureas.Type: GrantFiled: June 7, 1995Date of Patent: June 15, 1999Assignee: The Sherwin-Williams CompanyInventors: Revathi R. Tomko, Barbara J. Varone
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Patent number: 5909753Abstract: A dispenser is provided for separately storing and facilitating the mixture of separate components of a two-part composition. The dispenser includes a first container having a chamber for retaining one of the components and a second container having a chamber for retaining the other of the components and for mixing the components together to form the resultant two-part composition. A receptacle sleeve is provided and is mounted on the second container. The receptacle sleeve is adapted to secure the two containers together during periods of storage and transportation as well as to facilitate mixture of the components. The receptacle sleeve further serves to protect the user from exposure to the unmixed components as well as providing a drip-free spout in dispensing the composition. A method is further provided for alternately storing the separate components and admixing them together in one of the containers.Type: GrantFiled: November 5, 1997Date of Patent: June 8, 1999Assignee: The Sherwin-Williams CompanyInventors: Louis P. Rossi, W. Lance H. Hemsarth
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Patent number: 5863998Abstract: An unsaturated acid-functional monomer having the structure: ##STR1## wherein R is hydrogen or methyl and polymers prepared using the monomer are disclosed.Type: GrantFiled: July 24, 1997Date of Patent: January 26, 1999Assignee: The Sherwin-Williams CompanyInventor: Rubing Cai
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Patent number: 5837766Abstract: The present invention relates to an electrodepositable conductive coating composition which contains at least one cationic acrylic polymer, a crosslinking agent and conductive carbon black having an average particle size of about 20 nm or less, a surface area (BET) of about 240-300 m.sup.2 /g and an oil absorption (DBP) of about 100 to 150 ml/100 g. After curing, the conductive coating can be electrocoated with an electrodepositable topcoat having a defect-free appearance and a high degree of gloss.Type: GrantFiled: May 14, 1997Date of Patent: November 17, 1998Assignee: The Sherwin-Williams CompanyInventors: James N. Metro, Ronald Mattiuz
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Patent number: 5780412Abstract: A one-step cleaning and water repellent treatment is provided. An alkaline-stable cleaning solution is mixed with an aqueous solution of alkali metal organosiliconates and applied to porous inorganic surfaces as a one-step cleaning and water repellent treatment. The mixture has been found to be stable and compatible. The one-step cleaning and water repellent treatment functions to simultaneously clean and protect porous inorganic surfaces and, thus, reduces the cost and time necessary to clean and protect such a surface.Type: GrantFiled: August 9, 1995Date of Patent: July 14, 1998Assignee: The Sherwin-Williams CompanyInventors: Victoria D. Scarborough, Leonard R. Clark
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Patent number: 5741880Abstract: A hydroxy-functional polymer having a number average molecular weight, as determined by gel permeation chromatography, of from about 1800 to about 2700 and which consists essentially of polymerized monomers of 10-40% by weight, based on the total weight of the polymer, styrene; 20-55% by weight isobornyl methacrylate; and 20-55% by weight hydroxypropyl methacrylate; where the total of the monomers equals 100% are disclosed. The polymers are especially useful in combination with polyisocyanates as clearcoats in clearcoat/basecoat coating applications.Type: GrantFiled: April 28, 1997Date of Patent: April 21, 1998Assignee: The Sherwin-Williams CompanyInventors: Richard S. Valpey, III, Eugene I. Bzowej
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Patent number: 5735320Abstract: A dispenser is provided for separately storing and facilitating the mixture of separate components of a two-part composition. The dispenser includes a first container having a chamber for retaining one of the components and a second container having a chamber for retaining the other of the components and for mixing the components together to form the resultant two-part composition. A receptacle sleeve is provided and is mounted on the second container. The receptacle sleeve is adapted to secure the two containers together during periods of storage and transportation as well as to facilitate mixture of the components. The receptacle sleeve further serves to protect the user from exposure to the unmixed components as well as providing a drip-free spout in dispensing the composition. A method is further provided for alternately storing the separate components and admixing them together in one of the containers.Type: GrantFiled: August 21, 1996Date of Patent: April 7, 1998Assignee: The Sherwin-Williams CompanyInventors: Michael P. Tune, W. Lance H. Hemsarth
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Patent number: 5679742Abstract: An anhydride-functional polymer is obtained by at least partially hydrogenating an unsaturated polymer which was obtained by reacting under ene reaction conditions:(i) an unsaturated anhydride having the structure: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl of 1 to about 6 carbons, or alkoxy of 1 to about 6 carbons, or a halogen; and(ii) at least one polyolefin having at least two carbon--carbon double bonds in the polyolefin backbone and having an average of at least three carbon atoms in the polyolefin backbone between the carbon--carbon double bonds.Type: GrantFiled: August 26, 1996Date of Patent: October 21, 1997Assignee: The Sherwin-Williams CompanyInventors: Richard S. Valpey, III, Mohamad D. Shalati, Rodney M. Harris, Thomas W. Yokoyama
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Patent number: 5662416Abstract: An automatic clamping apparatus for paint mixers which applies a direct downward force on a paint container to prevent movement during the mixing operation, includes a clamping plate, a linear actuator, and a current sensor. The clamping plate is secured to the moving end of a vertically aligned linear actuator which moves the clamping plate up and down onto a paint container. The current sensor detects when the clamping plate is pushing against the top of the paint container and the power to the actuator is adjusted accordingly to maintain securing force on the paint container.Type: GrantFiled: April 30, 1996Date of Patent: September 2, 1997Inventor: Edward Jefferson Dwigans, II
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Patent number: 5651497Abstract: A packing case for cans or containers that can be readily opened without the use of a cutting tool and, when opened, provides a tray for the display of the contents of the packing case is disclosed. A tearing score is provided in each side panel of the packing case and has a configuration allowing the weight of the cans or containers within the case to cause the separation of the top portion of the case from the bottom portion when the top portion is lifted upwardly, such separation producing a relatively smooth edge on the bottom portion of the case which can be used for display purposes. A lifting access opening, reinforced by reinforcement material, is provided in each side panel adjacent the bottom panel of the packing case to assist in the lifting of same.Type: GrantFiled: June 4, 1996Date of Patent: July 29, 1997Assignee: The Sherwin-Williams CompanyInventors: Michael C. Ventura, Darlene A. Zelasko
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Patent number: 5633327Abstract: An unsaturated acid-functional monomer having the structure: ##STR1## wherein R.sup.1 is hydrogen or methyl and Z is nothing or is a divalent radical of 1 to about 20 carbons.Type: GrantFiled: April 22, 1996Date of Patent: May 27, 1997Assignee: The Sherwin-Williams CompanyInventor: Rodney M. Harris
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Patent number: 5633091Abstract: An anhydride-functional polymer obtained by reacting under graft copolymerization reaction conditions,(A) an unsaturated polymer which was obtained by reacting under ene reaction conditions a mixture of reactants comprising:(i) an unsaturated anhydride having the structure: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl of 1 to about 6 carbons, or alkoxy of 1 to about 6 carbons, or a halogen; and(ii) at least one polyolefin having at least two carbon-carbon double bonds in the polyolefin backbone and having an average of at least three carbon atoms in the polyolefin backbone between the carbon-carbon double bonds; and(B) at least one ethylenically unsaturated monomer which is copolymerizable with the unsaturated polymer.Type: GrantFiled: August 26, 1996Date of Patent: May 27, 1997Assignee: The Sherwin-Williams CompanyInventors: Rodney M. Harris, Mohamad D. Shalati, Joyce A. Bibeau