Patents Represented by Attorney Kathleen B. Gross
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Patent number: 7678316Abstract: A method that includes coextruding two or more thermoplastic resin streams through a profiled die plate, which die plate is shaped to form a nonplanar film (three dimensional) preferably with a regularly oscillating peak and valley structure that oscillates from a top surface to a bottom surface forming longitudinally extending ridges on both faces of the film. The film is formed by coextruding the film through the oscillating die plate opening causing partitioning of the resins in different zones in the width direction of the film. Flattening of the film results in a film with side-by-side zones formed of different polymers or relative proportions of polymers.Type: GrantFiled: June 8, 2004Date of Patent: March 16, 2010Assignee: 3M Innovative Properties CompanyInventors: Ronald W. Ausen, Janet A. Venne, Jayshree Seth
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Patent number: 7678426Abstract: Perfluoropolyether amide-linked phosphonates and derivatives thereof are provided. Compositions containing perfluoropolyether amide-linked phosphonates or derivatives thereof, perfluoropolyether amide-linked phosphates or derivatives thereof, or combinations thereof are also provided. Additionally, articles, methods of making articles, and methods of reducing contaminant adhesion to a substrate are described.Type: GrantFiled: July 7, 2004Date of Patent: March 16, 2010Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Mark J. Pellerite
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Patent number: 7670522Abstract: A unitary fastener of a thermoplastic resin comprising a base film layer having generally parallel upper and lower major surfaces, arranged in a first direction the base film layer being oriented at least in the first direction. The backing layer having on at least one surface separated surface elements extending at an angle to said first direction. The invention is also related to a method of forming a unitary fastener. The method includes the steps of extruding a thermoplastic resin in a machine direction through a die plate having a continuous base portion cavity and one or more rib cavities extending from the base portion cavity, forming a strip having a base layer and one or more continuous ribs. Scoring or cutting the ribs and at least a surface layer of the base layer forms predetermined separable elements. Inelastically stretching the strip forms separated projections and separated separable surface elements across the strip.Type: GrantFiled: March 6, 2006Date of Patent: March 2, 2010Assignee: 3M Innovative Properties CompanyInventors: Ronald W. Ausen, Jayshree Seth
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Patent number: 7662896Abstract: Described are fluorochemical surfactants derived from nonafluorobutanesulfonyl fluoride that contain polyalkyleneoxy side chains and may be copolymerized with acrylic acid or methacrylic acid to form polyacrylates or polymethacrylates. The surfactants surprisingly lower the surface tension of water and other liquids in the same or similar low values achieved by premier surfactants such as those derived from perfluorooctane sulfonyl fluoride.Type: GrantFiled: August 1, 2008Date of Patent: February 16, 2010Assignee: 3M Innovative Properties CompanyInventors: Patricia M. Savu, Sandra A. Etienne
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Patent number: 7658813Abstract: A method of preparing closure components and a method of preparing a stable roll of such components.Type: GrantFiled: February 12, 2004Date of Patent: February 9, 2010Assignee: 3M Innovative Properties CompanyInventor: Johann F. Petersen
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Patent number: 7652115Abstract: Described are compositions containing fluorinated polyether isocyanate derived silane compounds for treating substrates such as hard surfaces, e.g. ceramic and/or glass, to render them oil and water repellent, and stain resistant, articles having coatings comprising such compounds, and methods for applying such coatings.Type: GrantFiled: September 8, 2003Date of Patent: January 26, 2010Assignee: 3M Innovative Properties CompanyInventors: Rudolf J. Dams, Steven J. Martin, Richard M. Flynn
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Patent number: 7629298Abstract: Methods for modifying the wettability of sandstone. Compositions comprising sandstone having a modified wettability. Such wettability modifications may be useful, for instance, in improving the well-deliverability of an oil and/or gas well located in a sandstone formation.Type: GrantFiled: January 11, 2008Date of Patent: December 8, 2009Assignee: 3M Innovative Properties CompanyInventors: Manuel J. Arco, Rudolf J. Dams
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Patent number: 7569715Abstract: Perfluoro lower alkanesulfonamide-derived silanes which in an organic solvent are useful in treating siliceous substrates are described. The compositions may optionally contain an additional non-fluorinated compound in a mixture or condensation product. Methods for preparing perfluoro lower alkanesulfonamide-derived silanes are also described.Type: GrantFiled: August 23, 2006Date of Patent: August 4, 2009Assignee: 3M Innovative Properties CompanyInventors: Rudolf J. Dams, George G. I. Moore
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Patent number: 7524545Abstract: An article including: a porous substrate that includes a fibrous material; and a release coating disposed on the fibrous material of the porous substrate; wherein the release coating includes a thermoplastic silicone-containing polymer. A method of making an article, which method includes: providing a porous backing having a first major surface and a second major surface; applying a pressure sensitive adhesive to the first major surface of the porous backing; and applying an aqueous dispersion including a thermoplastic silicone-containing polymer to the second major surface of the porous backing to form a low adhesion backsize.Type: GrantFiled: May 16, 2002Date of Patent: April 28, 2009Assignee: 3M Innovative Properties CompanyInventors: Stephen W. Bany, James P. DiZio, Patricia J. A. Brandt, Janice R. Manore, Judith A. Green
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Patent number: 7495118Abstract: Described are perfluoro lower alkyl derived silanes having two perfluoroalkyl groups in close proximity to one another which in an organic solvent are useful in treating siliceous substrates; the compositions may optionally contain an additional non-fluorinated compound in a mixture or condensation product.Type: GrantFiled: December 30, 2004Date of Patent: February 24, 2009Assignee: 3M Innovative Properties CompanyInventors: Rudolf J. Dams, Michael S. Terrazas, George G. I. Moore
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Patent number: 7470741Abstract: The present invention provides a fluorochemical composition comprising: (a) one or more fluorochemical oligomers derivable from a free radical polymerization of one or more fluorinated monomers and optionally one or more non-fluorinated monomers in the presence of a chain transfer agent, said fluorochemical oligomer being free of acid groups and comprising one or more groups of the formula: -M1(R)q(Y)p?q?1??(I) wherein M1 is selected from the group consisting of Si, Ti, Zr, B, Al, Ge, V, Pb, Sn and Zn, R represents a non-hydrolysable group, Y represents a hydrolysable group, q is 0, 1 or 2, p equals the valence of M1 and is 3 or 4 and p?q?1 is at least 1; (b) one or more non-fluorinated compounds of an element M2 selected from the group consisting of Si, Ti, Zr, B, Al, Ge, V, Pb, Sn and Zn and having at least two hydrolysable groups per molecule in an amount sufficient to form a polycondensation product upon reaction with said fluorochemical oligomer (a); (c) water; and (d) an organic solvent in an amountType: GrantFiled: May 23, 2003Date of Patent: December 30, 2008Assignee: 3M Innovative Properties CompanyInventor: Rudolf J. Dams
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Patent number: 7417099Abstract: Described are fluorochemical surfactants derived from nonafluorobutanesulfonyl fluoride that contain polyalkyleneoxy side chains and may be copolymerized with acrylic acid or methacrylic acid to form polyacrylates or polymethacrylates. The surfactants surprisingly lower the surface tension of water and other liquids in the same or similar low values achieved by premier surfactants such as those derived from perfluorooctane sulfonyl fluoride.Type: GrantFiled: February 7, 2005Date of Patent: August 26, 2008Assignee: 3M Innovative Properties CompanyInventors: Patricia M. Savu, Sandra A. Etienne
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Patent number: 7407496Abstract: The present invention relates to a fastening film system 1 comprising a backing 7 and an adhesive layer 6 on one of the two major surfaces of the backing 7, the backing 7 bearing on its exposed major surface 3a opposite to the adhesive layer 6 a plurality of male fastening elements 4 capable of engaging with fibrous materials 32 having a plurality of complementary female fastening elements, and a plurality of through-holes 2 extending through the thickness 11 of the backing 7 so that the adhesive layer 6 attached to the backing 7 is exposed through such through-holes 2 wherein at least one of said through-holes 2 is encompassed by the backing 7, and wherein the fastening film system 1 releasably adheres to said fibrous materials 32 through a combination of a mechanical and an adhesive bonding mechanism.Type: GrantFiled: May 10, 2004Date of Patent: August 5, 2008Assignee: 3M Innovative Properties CompanyInventor: Johann F. Petersen
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Patent number: 7261757Abstract: There is provided a framed filter for insertion into a filter housing having a frame surrounding at least part of a filtration media with a fluid inlet face and a fluid outlet face, the frame comprising at least one longitudinally extending sidewall portion provided with one or more flexible side seals which side seal is provided with at least one longitudinally extending rib extending in the lengthwise direction of the seal on an outwardly facing surface of the seal.Type: GrantFiled: August 18, 2004Date of Patent: August 28, 2007Assignee: 3M Innovative Properties CompanyInventor: Dean R. Duffy
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Patent number: 7258717Abstract: The invention is related to a framed filter media comprising a pleated filter media having a fluid inlet face and a fluid outlet face with peripheral sidewalls. The peripheral sidewalls of the pleated filter are attached to the frame generally by an adhesive. The frame is preferably a flexible strip frame formed into three or more (up to an infinite number if the sidewall sections(s) is formed into a circular filter frame) sidewall sections each having a substantially flat sidewall and at least two projecting filter retaining tabs which form a flange on a first face of the sidewall section for containing the filter along its peripheral sidewalls and any adhesive. A cross brace is also inserted within the filter retaining tabs which fits into at least one pleat of the framed pleated filter media. The cross brace fits into the space formed by the pleated filter media but is not in continuous contact with the filter media forming the pleat.Type: GrantFiled: June 28, 2004Date of Patent: August 21, 2007Assignee: 3M Innovative Properties CompanyInventor: Dean R. Duffy