Patents by Inventor Alan J. Sipinen
Alan J. Sipinen 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: 6767492Abstract: A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers.Type: GrantFiled: June 27, 2002Date of Patent: July 27, 2004Assignee: 3M Innovative Properties CompanyInventors: Scott G Norquist, Dennis L Krueger, Alan J. Sipinen, Thomas P Hanschen, Ronald P Leseman
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Patent number: 6684464Abstract: There is provided a mechanical fastener bundling strap comprising a bundling strap having a first face and a second face with a bar code readable through hook elements on a first face. The first face is formed by a thermoplastic hook strip material having a first face and a second face. The hook strip first face has an array of upstanding hook projections which form at least in part the first face of the bundling strap, the second face of the hook strip comprises a film which film is provided with a printed UPC code readable through the hook strip first face.Type: GrantFiled: August 7, 2002Date of Patent: February 3, 2004Assignee: 3M Innovative Properties CompanyInventors: Kirit C. Mody, Michael W. G. Mills, Ronald W. Ausen, Shou-Lu Grace Wang, Alan J. Sipinen
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Publication number: 20030015819Abstract: An elastic web of material has a multiplicity of stems extending from at least one side of the web. The web includes a first continuous layer of elastic material having a first side and a second side and a second layer of material. The second layer of material has a first side which faces the first side of the first layer and a second side from which the stems extend. The first and second layers of material are joined together. The second layer of material can be formed of thermoplastic material or melt processable polymeric material. The first and second layers of material are melt formed. They are joined by coextrusion or lamination to form a multiple layer sheet on which a multiplicity of stems are formed on at least the second layer by a process such as embossing the stems into the heated web using a patterned roll or mold.Type: ApplicationFiled: September 9, 2002Publication date: January 23, 2003Applicant: 3M Innovative Properties CompanyInventors: Leon Levitt, Robert D. Kampfer, Michael D. Delmore, Stephen E. Krampe, Brandon T. Berg, Alan J. Sipinen, Mark E. Napierala, Victor P. Thalacker
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Publication number: 20020195738Abstract: A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers.Type: ApplicationFiled: June 27, 2002Publication date: December 26, 2002Applicant: 3M Innovative Properties CompanyInventors: Scott G. Norquist, Dennis L. Krueger, Alan J. Sipinen, Thomas P. Hanschen, Ronald P. Leseman
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Patent number: 6489003Abstract: An elastic web of material has a multiplicity of stems extending from at least one side of the web. The web includes a first continuous layer of elastic material having a first side and a second side and a second layer of material. The second layer of material has a first side which faces the first side of the first layer and a second side from which the stems extend. The first and second layers of material are joined together. The second layer of material can be formed of thermoplastic material or melt processable polymeric material. The first and second layers of material are melt formed. They are joined by coextrusion or lamination to form a multiple layer sheet on which a multiplicity of stems are formed on at least the second layer by a process such as embossing the stems into the heated web using a patterned roll or mold.Type: GrantFiled: March 8, 2000Date of Patent: December 3, 2002Assignee: 3M Innovative Properties CompanyInventors: Leon Levitt, Robert D. Kampfer, Michael D. Delmore, Stephen E. Krampe, Brandon T. Berg, Alan J. Sipinen, Mark E. Napierala, Victor P. Thalacker
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Patent number: 6454096Abstract: A package for dispensing individual oil absorbing polymeric sheets from a stack of such sheets, where the package includes a cover flap repeatedly moveable between an open position and a closed position, a pocket, a plurality of oil absorbing polymeric sheets arranged in a stack and positioned in the pocket, and a pressure-sensitive adhesive composition disposed on the cover flap such that closing the cover flap positions the pressure-sensitive adhesive composition for contact with a major surface of the first sheet of the stack of sheets.Type: GrantFiled: June 1, 2000Date of Patent: September 24, 2002Assignee: 3M Innovative Properties CompanyInventors: Kazunori Kondoh, Hiroto H. Katagiri, Gene H. Shipman, Alan J. Sipinen
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Patent number: 6447875Abstract: A die apparatus, a method of using the die apparatus to produce co-extruded polymeric articles, and co-extruded polymeric articles produced using the die apparatus and method are disclosed. The die apparatus includes a hollow vane configured to extrude a material into a chamber within the die, thereby producing a co-extruded web. The co-extruded web has a plurality of distinct, discontinuous phases in the cross-web direction, the phases having a uniform width as shown by a coefficient of variation of less than 8 percent for, any three consecutive phases. The phases are substantially continuous down-web and are surrounded by a matrix having two or more layers.Type: GrantFiled: July 30, 1999Date of Patent: September 10, 2002Assignee: 3M Innovative Properties CompanyInventors: Scott G. Norquist, Dennis L. Krueger, Alan J. Sipinen, Robert H. Menzies, Thomas P. Hanschen, Ronald P. Leseman, Sharon N. Mitchell, James C. Nygard, Victor P. Thalacker, Jan Ockeloen
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Patent number: 6270910Abstract: Described are anisotropic films comprising a continuous elastic phase comprising a polyolefin elastomer; and a discontinuous phase oriented within the continuous phase such that the film exhibits anisotropic properties.Type: GrantFiled: April 3, 1998Date of Patent: August 7, 2001Assignee: 3M Innovative Properties CompanyInventors: Jobst Tilman Jaeger, Alan J. Sipinen
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Patent number: 6106922Abstract: A web of material has a plurality of stems extending from at least one side of the web. The web includes a first layer of material having a first side and a second side and a second layer of material. The second layer of material has a first side which faces the first side of the first layer and a second side from which the plurality of stems extend. The first and second layers of material are joined together while they are both molten, before either layer has cooled. The first and second layers of material can be formed of thermoplastic material or melt processable polymeric material. A method of making a web of material includes selecting a first material for a first layer of material and selecting a second material for a second layer of material. The first and second layers of material are melt formed. Then, the first and second layers of material are joined while the layers are in the molten state to form a multiple layer sheet.Type: GrantFiled: October 3, 1997Date of Patent: August 22, 2000Assignee: 3M Innovative CompanyInventors: John E. Cejka, Mark R. Dupre, Jeffrey O. Emslander, William H. Hartt, Robert D. Kampfer, Francis V. Loncar, Jr., Louis S. Moren, Diane L. Regnier, Jayshree Seth, Robert W. G. Shipman, Alan J. Sipinen, William C. Unruh, Dennis G. Welygan, Leigh E. Wood
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Patent number: 5431644Abstract: An elastic strand construction comprising a plurality of spaced ribs separated by thin zones is provided. The elastic strand construction is preferred for applications in disposable garments or the like. A method of manufacturing the preferred elastic strand comprises extrusion of polymeric material through a profiled die or the like. In the alternative, a method of formation comprising extrusion between a profiled roller arrangement is described. A preferred disposable garment construction utilizing elastic strands according to the present invention is described.Type: GrantFiled: March 31, 1993Date of Patent: July 11, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Alan J. Sipinen, Leigh E. Wood, Bradley W. Eaton
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Patent number: 5342339Abstract: A pressure-sensitive adhesive closure for a disposable diaper can exhibit high peel resistance both at low and high speeds while its peelability at high speeds is not excessively shocky when it employs a pressure-sensitive adhesive of a certain rheology and it has, covering the fastening area, a polyolefin layer having microtopographical features as in FIGS. 1-6 of the drawing. As seen in FIGS. 1-6, suitable microtopographical features are provided by a large number of closely spaced asperities at least two micrometers in height that have a jagged appearance at 500.times.. A pressure-sensitive adhesive of suitable rheology can be provided by a blend of an AB block copolymer, such as a copolymer of styrene and either isoprene or butadiene, and tackifying resin, preferably a mixture of liquid and solid tackifying resins.Type: GrantFiled: May 16, 1991Date of Patent: August 30, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Theresa L. Carpenter, Alan J. Sipinen, Stephen W. Bany
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Patent number: 5232777Abstract: An elastic strand construction comprising a plurality of spaced ribs separated by thin zones is provided. The elastic strand construction is preferred for applications in disposable garments or the like. A method of manufacturing the preferred elastic strand comprises extrusion of polymeric material through a profiled die or the like. In the alternative, a method of formation comprising extrusion between a profiled roller arrangement is described. A preferred disposable garment construction utilizing elastic strands according to the present invention is described.Type: GrantFiled: September 23, 1991Date of Patent: August 3, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Alan J. Sipinen, Leigh E. Wood, Bradley W. Eaton
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Patent number: 5216043Abstract: The invention provides a compostable thermoplastic polymer composition comprising a thermoplastic polymer, a transition metal salt selected from cobalt, manganese, copper, cerium, vanadium and iron, and a fatty acid or ester having 10 to 22 carbon atoms providing unsaturated species and free acid. The composition will oxidatively degrade to an embrittled state within at least 14 days at 60.degree. C. and a relative humidity of at least eighty percent.Type: GrantFiled: December 12, 1991Date of Patent: June 1, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Alan J. Sipinen, Jobst T. Jaeger, Denise R. Rutherford, Elizabeth C. Edblom
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Patent number: 5158557Abstract: A refastenable adhesive closure is provided. The closure has a pressure-sensitive adhesive-bearing fastening tab and a target portion, or target strip, having a working face for contact with the adhesive-bearing fastening tab. The working face of the target strip is formed with peaks and valleys, the height of the peaks above the valleys being substantially uniform and from about 40 to 300 .mu.m, the spacing between adjacent peaks being from about 50 to 500 .mu.m, the back face of the target portion being substantially flat, and the thickness of the adhesive layer of the tab being no more than about 90% of the height of the peaks above the valleys. The closure is resistant to contamination by dust and other fine particulate matter and is especially useful for refastenable disposable diaper closures and refastenable envelope closures.Type: GrantFiled: December 3, 1990Date of Patent: October 27, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: Allen L. Noreen, Dean R. Crissinger, William L. Melbye, Eric G. Rodgers, Alan J. Sipinen, Leigh E. Wood
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Patent number: D454303Type: GrantFiled: December 1, 2000Date of Patent: March 12, 2002Assignee: 3M Innovative Properties CompanyInventor: Alan J. Sipinen
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Patent number: D460351Type: GrantFiled: December 1, 2000Date of Patent: July 16, 2002Assignee: 3M Innovative Properties CompanyInventors: Alan J. Sipinen, Diane R. Cordes
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Patent number: D460888Type: GrantFiled: December 1, 2000Date of Patent: July 30, 2002Inventor: Alan J. Sipinen
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Patent number: D463975Type: GrantFiled: December 1, 2000Date of Patent: October 8, 2002Assignee: 3M Innovative Properties CompanyInventor: Alan J. Sipinen
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Patent number: D463976Type: GrantFiled: December 1, 2000Date of Patent: October 8, 2002Assignee: 3M Innovative Properties CompanyInventors: Alan J. Sipinen, Diane R. Cordes
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Patent number: D496854Type: GrantFiled: March 21, 2003Date of Patent: October 5, 2004Assignee: 3M Innovative Properties CompanyInventor: Alan J. Sipinen