Patents by Inventor Peter S. Columbus
Peter S. Columbus 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: 6268413Abstract: The present invention includes a high strength adhesive and includes a dispenser containing a high strength adhesive. The invention is an adhesive composition comprising: (a) water present in an amount of from about 40 percent to about 70 percent by weight; (b) polyvinyl acetate present in an amount of about 15 percent to about 35 percent by weight; (c) dextrin present in an amount from about 5 percent to about 35 percent by weight; and (d) starch present in an amount from about 0 percent to about 5 percent by weight; the adhesive having at least 30% by weight solids, having a paste-like consistency, and having a bond strength greater than about 2000 p.s.i. as measured by ASTM D-905. The adhesive of the present invention has a very workable consistency that is very much like room-temperature butter or shortening used in cooking.Type: GrantFiled: May 5, 1999Date of Patent: July 31, 2001Assignee: Elmer's Products, Inc.Inventors: Peter S. Columbus, Yogeshbhai B. Patel
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Patent number: 6036761Abstract: The present invention includes several embodiments of solvent-based wood fillers comprising an organic solvent component, nitrocellulose, calcium carbonate, a filler selected from aluminum silicate and magnesium silicate and mixtures thereof, and, wood flour. The wood filler of the present invention is easy to apply yet dries in a relative short time, and can be stained sufficiently to match the appearance of the surrounding wood to which it is applied.Type: GrantFiled: August 11, 1999Date of Patent: March 14, 2000Assignee: Elmer's Products, Inc.Inventors: Peter S. Columbus, Yogeshbhai B. Patel
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Patent number: 5473005Abstract: A water based thixotropic adhesive gel is disclosed which contains: water; polyvinyl alcohol, or wherein a portion of the polyvinyl alcohol is replaced with polyvinylpyrrolidone; xanthan gum to impart thixotropic properties to the gel; and a plasticizer for the polyvinyl alcohol. The gel has a thixotropic index which permits the viscosity of the adhesive to break down when a flexible tube or squeeze bottle dispenser is finger-pressed while having a sufficiently low viscosity to allow for easy extrusion from an orifice having a diameter of about 0.06 to 0.15 inches. When pressure is released, after the desired amount of adhesive has flown out of the dispenser, the adhesive quickly reverts to very close to its original gel state so that it does not run on a vertical surface of porous or semiporous material such as paper. Preferred gels contain a water soluble dye and are clear.Type: GrantFiled: February 9, 1994Date of Patent: December 5, 1995Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson, Yogeshbhai B. Patel
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Patent number: 5416140Abstract: A cross-linkable water-based wood adhesive comprised of a critical mixture of from 0.10 to 0.75 by weight of a water-soluble, high-viscosity thickening agent polymer such as hydroxyethylcellulose, 0.05-0.40% by weight of a defoamer to dissipate foam quickly during manufacture, 25.00 to 45.00% by weight of solids of a self-cross-linking polyvinyl acetate polymer (treated with N-methylolacrylamide) dispersed in water, 1.00-3.00% by weight of a plasticizer/coalescing agent such as 2,2,4-trimethyl-1,3 pentanediol monoisobutyrate, 0.50 to 1.00% of an acidic catalyst, such as aluminum chloride, 4.00 to 12% by weight of fine particle-size wood fibers (soft or hard wood fibers or a mixture of both) and 0.10% by weight of a preservative. The viscosity of this adhesive gel will "break-down" when its container, e.g. a squeeze-bottle or flexible tube is finger-pressed resulting in a sufficiently low viscosity to allow for easy extrusion from the small orifices, approximately 0.Type: GrantFiled: June 10, 1994Date of Patent: May 16, 1995Assignee: Borden, Inc.Inventors: Peter S. Columbus, Yogeshbhai B. Patel, John Anderson
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Patent number: 5331023Abstract: This invention relates to thermoplastic, pressure-sensitive solid adhesives capable of transferring an adhesive film to a substrate by friction rubbing of the adhesive on the substrate. The adhesives of this invention consist essentially of polyisobutylene, wax and optionally an adhesive promoter resin. Said ingredients are within certain proportions, molecular weights, melting points, or hardness values.Type: GrantFiled: March 23, 1992Date of Patent: July 19, 1994Assignee: Borden, Inc.Inventors: Peter S. Columbus, Yogeshbhai B. Patel
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Patent number: 5322880Abstract: A water based thixotropic adhesive gel is disclosed which consists essentially of: water; partially hydrolyzed polyvinyl alcohol, or wherein a portion of the polyvinyl alcohol is replaced with polyvinylpyrrolidone; a water-soluble high viscosity thickening agent polymer which is compatible with the polyvinyl alcohol and which imparts thixotropic properties to the gel; a water-soluble plasticizer for the polyvinyl alcohol; and a watersoluble defoamer in proportion of ingredients so that the viscosity of the adhesive will break down when a flexible tube or squeeze bottle dispenser is finger-pressed and have a sufficiently low viscosity to allow for easy extrusion from an orifice having a diameter of about 0.06 to 0.15 inches. When pressure is released, after the desired amount of adhesive has flown out of the dispenser, the adhesive quickly reverts to very close to its original gel state so that it will not run on a vertical surface on porous and semiporous surfaces such as paper.Type: GrantFiled: November 10, 1993Date of Patent: June 21, 1994Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson, Yogeshbhai B. Patel
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Patent number: 5306749Abstract: A water based thixotropic adhesive gel is disclosed which comprises; an aqueous emulsion of polyvinyl acetate in an amount sufficient to form adhesive bonds on wood; partially hydrolyzed polyvinyl alcohol in an amount sufficient to provide wet tack of the adhesive; glyoxal in an amount sufficient to provide water resistance to the adhesive; and wood flour in an amount sufficient to increase the water resistance imparted by the glyoxal and to provide sanding and staining properties to the adhesive; and xanthan gum in an amount sufficient to provide a thixotropic index and viscosity allowing extrusion of the gel from a flexible dispenser having a dispensing opening of about 0.073 inches in diameter by applying finger-pressure to the dispenser while, upon extrusion, the gel forms a bead which does not run when applied in a horizontal line on wood in a vertical plane.Type: GrantFiled: June 15, 1993Date of Patent: April 26, 1994Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson, Yogeshbai B. Patel
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Patent number: 5284897Abstract: A water based thixotropic adhesive gel is disclosed which consists essentially of: water; partially hydrolyzed polyvinyl alcohol, or wherein a portion of the polyvinyl alcohol is replaced with polyvinylpyrrolidone; a water-soluble high viscosity thickening agent polymer which is compatible with the polyvinyl alcohol and which imparts thixotropic properties to the gel; a water-soluble plasticizer for the polyvinyl alcohol; and a watersoluble defoamer in proportion of ingredients so that the viscosity of the adhesive will break down when a flexible tube or squeeze bottle dispenser is finger-pressed and have a sufficiently low viscosity to allow for easy extrusion from an orifice having a diameter of about 0.06 to 0.15 inches. When pressure is released, after the desired amount of adhesive has flown out of the dispenser, the adhesive quickly reverts to very close to its original gel state so that it will not run on a vertical surface on porous and semiporous surfaces such as paper.Type: GrantFiled: November 16, 1992Date of Patent: February 8, 1994Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson, Yogeshbhai B. Patel
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Patent number: 4444933Abstract: A cyanoacrylate-based adhesive composition comprises 55-92% by weight of a 2-cyanoacrylate ester, preferably the ethyl ester, from 40-30% by weight of a vinyl chloride/vinyl acetate copolymer and not more than 25% by weight of a plasticizer (the plasticizer may be omitted entirely). The copolymer is preferably a vinyl chloride/vinyl acetate/maleic acid terpolymer. The adhesive compositions have greatly reduced adhesion to skin, not forming strong skin bonds for at least 30 seconds, in contrast to conventional cyanoacrylate adhesive compositions which form, within in about one second bonds strong enough to tear skin.Type: GrantFiled: December 2, 1982Date of Patent: April 24, 1984Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson
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Patent number: 4345044Abstract: A barytes-containing wood filler is prepared from essential ingredients including, on weight percent basis, 6-14% acrylic resin, 3-10% platy talc, 3-10% barytes filler, 3-12% clay filler, 40-65% calcium carbonate filler and 13-35% water. A barytes-free wood filler is prepared from the same proportions of acrylic resin, calcium carbonate filler and water, together with 5-18% platy talc and 0-15% clay filler. Desirably the average particle size of the talc is about 9 microns and the average particle size of the clay is about 5 microns.Type: GrantFiled: November 24, 1980Date of Patent: August 17, 1982Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson
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Patent number: 4251400Abstract: This invention relates to polyvinyl acetate adhesives redispersible in hot and cold water in the dried film form.The adhesives comprise an emulsion of a polyvinyl acetate, an anti-coalescing polyvinylpyrrolidone and a non-volatile, water-soluble plasticizer for said anti-coalescing agent that is immiscible with the polyvinyl acetate resin, said plasticizer being present in amount to impart flexibility to the dried adhesive film and the ratio of polyvinyl acetate to anti-coalescing agent not exceeding about 8 parts by weight for each part by weight of agent.Type: GrantFiled: September 10, 1979Date of Patent: February 17, 1981Assignee: Borden, Inc.Inventor: Peter S. Columbus
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Patent number: 4225496Abstract: The cement is composed of the following principal ingredients on weight percent basis: 20 to 40% acrylic resin, 40 to 60% calcium carbonate filler, 5 to 15% clay filler and enough water to give viscosity at 25.degree. C. of about 150,000 to 600,000 cps.Type: GrantFiled: July 27, 1977Date of Patent: September 30, 1980Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson
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Patent number: 4160750Abstract: An acrylic contact cement is prepared from ingredients which include in excess of about 98% of a 52% acrylic emulsion; trace quantities of an epoxy silane and glyoxal which synergistically improve water resistance and adhesion without interfering with shelf stability and freeze-thaw property of the cement; a thickener which suspends and stabilizes water-based system; and a perfuming agent.Type: GrantFiled: February 22, 1977Date of Patent: July 10, 1979Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson
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Patent number: RE35144Abstract: A water based thixotropic adhesive gel is disclosed which consists essentially of: water; partially hydrolyzed polyvinyl alcohol, or wherein a portion of the polyvinyl alcohol is replaced with polyvinylpyrrolidone; a water-soluble high viscosity thickening agent polymer which is compatible with the polyvinyl alcohol and which imparts thixotropic properties to the gel; a water-soluble plasticizer for the polyvinyl alcohol; and a watersoluble defoamer in proportion of ingredients so that the viscosity of the adhesive will break down when a flexible tube or squeeze bottle dispenser is finger-pressed and have a sufficiently low viscosity to allow for easy extrusion from an orifice having a diameter of about 0.06 to 0.12 inches. When pressure is released, after the desired amount of adhesive has flown out of the dispenser, the adhesive quickly reverts to very close to its original gel state so that it will not run on a vertical surface on porous and semiporous surfaces such as paper.Type: GrantFiled: August 15, 1994Date of Patent: January 9, 1996Assignee: Borden, Inc.Inventors: Peter S. Columbus, John Anderson, Yogeshbhai B. Patel