Patents by Inventor Gene H. Shipman
Gene H. Shipman 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: 8962214Abstract: Shaped microporous articles are produced from polyvinylidene fluoride (PVDF) and nucleating agents using thermally induced phase separation (TIPS) processes. The shaped microporous article is oriented in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0. The shaped article may also comprise a diluent, glyceryl triacetate. The shaped microporous article may also have the micropores filled with a sufficient quantity of ion conducting electrolyte to allow the membrane to function as an ion conductive membrane. The method of making a microporous article comprises the steps of melt blending polyvinylidene fluoride, nucleating agent and glyceryl triacetate; forming a shaped article of the mixture; cooling the shaped article to cause crystallization of the polyvinylidene fluoride and phase separation of the polyvinylidene fluoride and glyceryl triacetate; and stretching the shaped article in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0.Type: GrantFiled: January 17, 2014Date of Patent: February 24, 2015Assignee: 3M Innovative Properties CompanyInventors: Samantha D. Smith, Gene H. Shipman, Robert M. Floyd, Harold Todd Freemyer, Steven J. Hamrock, Michael A. Yandrasits, David G. S. Walton
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Publication number: 20140134518Abstract: Shaped microporous articles are produced from polyvinylidene fluoride (PVDF) and nucleating agents using thermally induced phase separation (TIPS) processes. The shaped microporous article is oriented in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0. The shaped article may also comprise a diluent, glyceryl triacetate. The shaped microporous article may also have the micropores filled with a sufficient quantity of ion conducting electrolyte to allow the membrane to function as an ion conductive membrane. The method of making a microporous article comprises the steps of melt blending polyvinylidene fluoride, nucleating agent and glyceryl triacetate; forming a shaped article of the mixture; cooling the shaped article to cause crystallization of the polyvinylidene fluoride and phase separation of the polyvinylidene fluoride and glyceryl triacetate; and stretching the shaped article in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0.Type: ApplicationFiled: January 17, 2014Publication date: May 15, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Samantha D. Smith, Gene H. Shipman, Robert M. Floyd, Harold Todd Freemyer, Steven J. Hamrock, Michael A. Yandrasits, David G. S. Walton
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Patent number: 8663868Abstract: Shaped microporous articles are produced from polyvinylidene fluoride (PVDF) and nucleating agents using thermally induced phase separation (TIPS) processes. The shaped microporous article is oriented in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0. The shaped article may also comprise a diluent, glyceryl triacetate. The shaped microporous article may also have the micropores filled with a sufficient quantity of ion conducting electrolyte to allow the membrane to function as an ion conductive membrane. The method of making a microporous article comprises the steps of melt blending polyvinylidene fluoride, nucleating agent and glyceryl triacetate; forming a shaped article of the mixture; cooling the shaped article to cause crystallization of the polyvinylidene fluoride and phase separation of the polyvinylidene fluoride and glyceryl triacetate; and stretching the shaped article in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0.Type: GrantFiled: January 15, 2008Date of Patent: March 4, 2014Assignee: 3M Innovative Properties CompanyInventors: Samantha D. Smith, Gene H. Shipman, Robert M. Floyd, Harold Todd Freemyer, Steven J. Hamrock, Michael A. Yandrasits, David G. S. Walton
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Patent number: 7338692Abstract: Shaped microporous articles are produced from polyvinylidene fluoride (PVDF) and nucleating agents using thermally induced phase separation (TIPS) processes. The shaped microporous article is oriented in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0. The shaped article may also comprise a diluent, glyceryl triacetate. The shaped microporous article may also have the micropores filled with a sufficient quantity of ion conducting electrolyte to allow the membrane to function as an ion conductive membrane. The method of making a microporous article comprises the steps of melt blending polyvinylidene fluoride, nucleating agent and glyceryl triacetate; forming a shaped article of the mixture; cooling the shaped article to cause crystallization of the polyvinylidene fluoride and phase separation of the polyvinylidene fluoride and glyceryl triacetate; and stretching the shaped article in at least one direction at a stretch ratio of at least approximately 1.1 to 1.0.Type: GrantFiled: September 12, 2003Date of Patent: March 4, 2008Assignee: 3M Innovative Properties CompanyInventors: Samantha D. Smith, Gene H. Shipman, Robert M. Floyd, Harold Todd Freemyer, Steven J. Hamrock, Michael A. Yandrasits, David G. S. Walton
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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: 4539256Abstract: A method of making a microporous material is provided which comprises the steps of melt blending crystallizable thermoplastic polymer with a compound which is miscible with the thermoplastic polymer at the melting temperature of the polymer but phase separates on cooling at or below the crystallization temperature of the polymer, forming a shaped article of the melt blend, cooling the shaped article to a temperature at which the polymer crystallizes to cause phase separation to occur between the thermoplastic polymer and the compound to provide an article comprising a first phase comprising particles of crystallized thermoplastic polymer in a second phase of said compound, orienting the article in at least one direction to provide a network of interconnected micropores throughout. The microporous article comprises about 30 to 80 parts by weight crystallizable thermoplastic polymer and about 70 to 20 parts by weight of the compound.Type: GrantFiled: February 28, 1984Date of Patent: September 3, 1985Assignee: Minnesota Mining and Manufacturing Co.Inventor: Gene H. Shipman
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Patent number: 4211825Abstract: A multilayer composite film structure comprising (i) a support of polyester film, (ii) a first layer of organic polymer having a mass crystallinity of less than about 60%, and (iii) a second layer of organic polymer having a mass crystallinity of greater than about 60% is provided. A method for non-adhesively bonding normally non-bondable polymeric materials to polyester is also provided.Type: GrantFiled: October 16, 1978Date of Patent: July 8, 1980Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gene H. Shipman
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Patent number: 4072661Abstract: Thin-walled ovenable parts made from polybutylene terephthalate.Type: GrantFiled: March 22, 1976Date of Patent: February 7, 1978Assignee: Minnesota Mining and Manufacturing CompanyInventor: Gene H. Shipman
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Patent number: D490633Type: GrantFiled: January 23, 2002Date of Patent: June 1, 2004Assignee: 3M Innovative Properties CompanyInventors: Kazunori Kondoh, Hiroto H. Katagiri, Gene H. Shipman