Patents by Inventor Sigfrid Svensson
Sigfrid Svensson 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: 9249310Abstract: A polysaccharide composition for protection of surfaces comprising an aqueous solution of at least two components, the first component (A) being a high molecular weight polysaccharide or a mixture of high molecular weight polysaccharides having an average molecular weight Mw of at least 100 000, and being capable of forming a gel, and the second component (B) being a low molecular weight polysaccharide such as locust bean or guar gum or a mixture of low molecular weight polysaccharides having an average molecular weight Mw of 400-75 000, and being capable of inhibiting gel formation in said composition.Type: GrantFiled: December 2, 2009Date of Patent: February 2, 2016Assignee: LYCKEBY STARCH ABInventor: Sigfrid Svensson
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Publication number: 20150056460Abstract: The present invention relates to a protein/peptide composition for protection of surfaces comprising an aqueous solution of at least two components, the first component (A) being a water-soluble protein or a mixture of water-soluble proteins having an average molecular weight Mw of at least 30000, and being capable of forming a gel, and the second component (B) being a water-soluble peptide or a mixture of water-soluble peptides mixture having an average molecular weight of 200-10000, and being capable of inhibiting gel formation in said composition. The present invention further relates to a method for preparing such a composition, the use of the composition for protecting a surface, a method for protecting a substrate surface using the composition, and to a substrate surface coated with the composition.Type: ApplicationFiled: March 11, 2013Publication date: February 26, 2015Inventor: Sigfrid Svensson
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Publication number: 20110275260Abstract: The present invention relates to a polysaccharide composition for protection of surfaces comprising an aqueous solution of at least two components, the first component (A) being a high molecular weight polysaccharide or a mixture of high molecular weight polysaccharides having an average molecular weight Mw of at least 100 000, and being capable of forming a gel, and the second component (B) being a low molecular weight polysaccharide or a mixture of low molecular weight polysaccharides having an average molecular weight Mw of 400-75 000, and being capable of inhibiting gel formation in said composition. The present invention further relates to a method for preparing such a composition, the use of the composition for protecting a surface, a method for protecting a substrate surface using the composition, and to a substrate surface coated with the composition.Type: ApplicationFiled: December 2, 2009Publication date: November 10, 2011Applicant: Lyckeby Coatings ABInventor: Sigfrid Svensson
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Publication number: 20060201389Abstract: A composition is provided consisting of an aqueous solution comprising at least one natural polysaccharide or a derivative thereof and at least one polymeric polyamino compound, the composition being capable of forming a film when applied onto a substrate. The invention also involves a method for temporary protection of a substrate surface from environmental influence using such composition.Type: ApplicationFiled: May 9, 2006Publication date: September 14, 2006Applicant: POLYSACCHARIDE INDUSTRIES ABInventor: Sigfrid Svensson
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Patent number: 7060742Abstract: A composition is provided consisting of an aqueous solution comprising at least one natural polysaccharide or a derivative thereof and at least one polymeric polyamino compound, the composition being capable of forming a film when applied onto a substrate. The invention also involves a method for temporary protection of a substrate surface from environmental influence using such composition.Type: GrantFiled: March 27, 2002Date of Patent: June 13, 2006Assignee: Polysaccharide Industries ABInventor: Sigfrid Svensson
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Publication number: 20040129173Abstract: A composition is provided consisting of an aqueous solution comprising at least one natural polysaccharide or a derivative thereof and at least one polymeric polyamino compound, the composition being capable of forming a film when applied onto a substrate. The invention also involves a method for temporary protection of a substrate surface from environmental influence using such composition.Type: ApplicationFiled: March 1, 2004Publication date: July 8, 2004Inventor: Sigfrid Svensson
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Patent number: 5948545Abstract: A process for protecting a surface from non-desired contamination and for facilitating removal of said contamination from said surface, characterized by the steps: a) preparing a solution of polysaccharides containing at least two components, wherein one component is constituted by a first polysaccharide which, when precipitated from a solution by evaporation of the solvent thereof, directly forms a film and wherein the second component is constituted by a second polysaccharide which, when precipitated from a solution by evaporation of the solvent thereof, forms a film via at least partial gel formation, or by interaction with said first polysaccharide, said films being redissolvable or swellable: b) applying the solution from step a) onto said surface before subjected to contamination: c) allowing the applied solution to dry so as to form a solid film on said surface via at least partial gel formation: d) treating the film-coated surface with a liquid capable of redissolving film or provided swelling thereofType: GrantFiled: April 14, 1998Date of Patent: September 7, 1999Assignee: Polysaccharide Industries AB PSIInventor: Sigfrid Svensson
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Patent number: 5750189Abstract: A process for protecting a surface from non-desired contamination and for facilitating removal of said contamination from said surface, characterized by the steps: a) preparing a solution of polysaccharides containing at least two components, wherein one component is constituted by a first polysaccharide which, when precipitated from a solution by evaporation of the solvent thereof, directly forms a film and wherein the second component is constituted by a second polysaccharide which, when precipitated from a solution by evaporation of the solvent thereof, forms a film via at least partial gel formation, or by interaction with said first polysaccharide, said films being redissolvable or swellable: b) applying the solution from step a) onto said surface before subjected to contamination: c) allowing the applied solution to dry so as to form a solid film on said surface via at least partial gel formation: d) treating the film-coated surface with a liquid capable of redissolving film or provided swelling thereofType: GrantFiled: September 10, 1996Date of Patent: May 12, 1998Assignee: Polysaccharide Industries AB PSIInventor: Sigfrid Svensson
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Patent number: 5093485Abstract: A polysaccharide-based composition, characterized by comprising or essentially consisting of:at least a first component a) excluding galactane constituted by a substituted .beta.-1,4-linked glycan which is dissolvable in water of a certain temperature and which has a molecular weight (Mw) of .gtoreq.5.multidot.10.sup.4 Daltons, preferably.gtoreq.10.sup.5 Daltons, particularly .gtoreq.10.sup.6 Daltons, andat least a second component b), also excluding galactans, constituted by a substituted .beta.-1,4-linked glycan which is more difficult to dissolve than said first component at said temperature, or is agar or a carrageenan;the use of the composiiton above as a:a) means for reducing friction,b) means for facilitating removal of undesired contamination from surfaces, such as graffiti, scrawl, soot etc.Type: GrantFiled: December 29, 1989Date of Patent: March 3, 1992Assignee: Polysaccharide Industries Aktiebolag PsiInventor: Sigfrid Svensson
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Patent number: 5017237Abstract: A process for facilitating the removal of undesired contamination from a surface, comprising the steps:(a) applying a solution containing a polysaccharide and a solvent therefor onto said surface before it is subjected to contamination, said polysaccharide being capable of forming a redissolvable or swelling solid film upon drying;(b) allowing the applied solution to dry to form a solid film on said surface;(c) treating the coated surface with a liquid capable of redissolving the film or providing for swelling thereof; and(d) removing the undesired contamination by removing the dissolved or swelled surface layer of the film.Type: GrantFiled: January 16, 1990Date of Patent: May 21, 1991Assignee: Bioboat ABInventor: Sigfrid Svensson
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Patent number: 4851338Abstract: A composition for therapeutic or diagnostic use in regard to pathogenic microorganisms, containing as an active constituent a structural element having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are same or different and are hydrogen or an organic residue, for example lower alkyl, lower acyl, or a carbohydrate residue or an inorganic residue, such as sulphate or phosphate, and wherein OR.sub.1 is in .alpha.- or .beta.-configuration; a process for therapeutic treatment; a process for identification or quantification of the said structural element in native biological material; a process for purifying acceptor structures of bacteria; and a process for performing disinfection on surfaces.Type: GrantFiled: February 24, 1987Date of Patent: July 25, 1989Assignee: Biocarb ABInventors: Per A. Mardh, Sigfrid Svensson
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Patent number: 4665060Abstract: A composition for therapeutic or diagnostic use in regard to pathogenic microorganisms, containing as an active constituent a structural element having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are same or different and are hydrogen or an organic residue, for example lower alkyl, lower acyl, or a carbohydrate residue or an inorganic residue, such as sulphate or phosphate, and wherein OR.sub.1 is in .alpha.- or .beta.-configuration; a process for therapeutic treatment; a process for identification or quantification of the said structural element in native biological material; a process for purifying acceptor structures of bacteria; and a process for performing disinfection on surfaces.Type: GrantFiled: March 22, 1983Date of Patent: May 12, 1987Assignee: Biocarb ABInventors: Per A. Mardh, Sigfrid Svensson
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Patent number: 4045963Abstract: The invention is connected with an installation or plant for storing oil and similar petrol products in several underground storing rooms each communicating with a common oil-filled pump chamber housing submersed pumps for pumping out oil from any of the rooms. Selective pumping requires valves for selective connection of room outlet pipes with a pump inlet pipe. Submersed location of those valves in the pump chamber, according to the prior art, involves several disadvantages such as the need of draining the complete system for repair and maintenance work on the valves, and, difficulty to remote-control the valves. These advantages are, according to the invention, eliminated by the use of a dry valve chamber sealed-off from an oil-containing pump chamber housing submersed pumps.Type: GrantFiled: May 24, 1976Date of Patent: September 6, 1977Assignee: Armerad Betong Vagforbattringar AktiebolagInventors: Bengt Hansson, Sigfrid Svensson