Abstract: Fluorochemical polymers for use in providing stain-release properties to a substrate material are disclosed. The present invention provides for polymeric fluorochemical polymers that include perfluoroaliphatic, hydrophilic, cationogenic, and either N-hydroxyalkylacrylamide and/or diacrylate monomers.
Type:
Grant
Filed:
May 8, 2001
Date of Patent:
November 19, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Chetan P. Jariwala, Linda G. Cote, Deborah J. Eilers
Abstract: A fibrillated foamed article and process for producing the same is described. The fibrillated articles are useful as tape backings, filters, thermal and acoustical insulation and as a diffuse reflector for use in optical applications such as computer displays and as reinforcement fibers for polymers or cast building materials such as concrete.
Abstract: This invention relates to a method for imparting soil-resistant and water-repellent properties to fibrous polyamide substrates (such as carpet fibers) by applying an acidic aqueous treating solution containing a silsesquioxane. This invention also relates to the treating solution used to impart soil resistance, and water repellency to the fibrous polyamide. This invention also relates to treated fibrous substrate made according to the method of this invention.
Type:
Grant
Filed:
June 11, 2001
Date of Patent:
October 22, 2002
Assignee:
3M Innovative Properties Company
Inventors:
John C. Chang, Angela J. Nixon, Irvin F. Dunsmore
Abstract: This invention relates to polymeric compositions that are processible and may be photochemically cured to produce crosslinked compositions useful in coating, sealants and adhesive applications. The crosslinkable composition comprises a first component having a plurality of pendent, free-radically polymerizable functional groups; a polymeric photoinitiator, and a residual content of less than 2%. The composition is melt processable at temperatures of less than or equal to 100° C.
Type:
Grant
Filed:
September 8, 2000
Date of Patent:
September 10, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Babu N. Gaddam, Steven M. Heilmann, Ahmed S. Abuelyaman, Maureen A. Kavanagh, Duane D. Fansler, Kevin M. Lewandowski
Abstract: Pressure sensitive adhesives are provided which possess high load bearing capabilities at elevated temperatures. The adhesives are prepared by polymerization of a syrup polymer composition having a first solute polymer having reactive, pendant functional groups, a second component having co-reactive functional groups, and a monomer mixture. The syrup polymer contains reactive electrophilic or nucleophilic functional groups that can subsequently crosslink by reaction with a second component having co-reactive functional groups.
Type:
Grant
Filed:
October 7, 1999
Date of Patent:
September 10, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Babu N. Gaddam, Steven M. Heilmann, Ahmed S. Abuelyaman
Abstract: This invention relates to an oriented embossed film, which may be used as a backing in an adhesive tape. The film is easily and readily hand-tearable without the use of cutting tools or a dispenser and provides a substantially straight, non-curling edge when torn.
Type:
Grant
Filed:
December 14, 1999
Date of Patent:
August 13, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Mario A. Perez, Michael D. Swan, Robert J. Maki
Abstract: Microfibers and microfibrillated articles are prepared by imparting fluid energy to a surface of a highly oriented, highly crystalline, melt-processed polymeric film. The microfibers and microfibrillated articles are useful as tape backings, filters, thermal and acoustical insulation and as reinforcement fibers for polymers or cast building materials such as concrete.
Type:
Grant
Filed:
June 16, 2000
Date of Patent:
August 13, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Mario A. Perez, Michael D. Swan, John W. Louks
Abstract: Microfibers and microfibrillated articles are provided by imparting fluid energy to a surface of a highly oriented, highly crystalline, melt-processed polymeric film. The microfibers and microfibrillated articles are useful as tape backings, filters, thermal and acoustical insulation and as reinforcement fibers for polymers or cast building materials such as concrete.
Type:
Grant
Filed:
April 9, 2001
Date of Patent:
August 13, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Mario A. Perez, Michael D. Swan, John W. Louks
Abstract: The invention provides azeotrope-like compositions consisting essentially of RfOCH3, where Rf is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and one or more organic solvent(s) selected from the group consisting of:
straight chain, branched chain and cyclic alkanes containing 6 to 8 carbon atoms; cyclic and acyclic ethers containing 4 to 6 carbon atoms; ketones having 3 carbon atoms; chlorinated alkanes containing 1, 3 or 4 carbon atoms; chlorinated alkenes containing 2 carbon atoms, alcohols containing 1 to 4 carbon atoms, partially fluorinated alcohols containing 2 to 3 carbon atoms, 1-bromopropane, acetonitrile, HCFC 225ca (1,1,-dichloro-2,2,3,3,3 pentafluoropropane and HCFC-225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane).
Type:
Grant
Filed:
February 14, 2001
Date of Patent:
July 30, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Richard M. Flynn, Dean S. Milbrath, John G. Owens, Daniel R. Vitcak, Hideto Yanome
Abstract: Charged, high-strength, high-modulus, melt-processed microfibers, films having a charged, microfibrillated surface, and methods of making the same are described. Charged microfibrillated articles of the invention can be prepared by imparting fluid energy, typically in the form of high-pressure water jets, to a highly oriented, highly crystalline, melt processed film to liberate microfibers or microfibrous flakes therefrom. Microfibrillated articles of the invention find use as tape backings, in the preparation of woven or nonwoven articles, filters for particulate contaminants, such as face masks and water or air filters, fibrous mats, such as those used for removal of oil from water, wipes for dust or debris removal, and thermal and acoustical insulation.
Type:
Grant
Filed:
December 21, 2000
Date of Patent:
July 16, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Mario A. Perez, Betty Z. Mei, Michael D. Swan
Abstract: The invention describes fluorochemical triazine compounds, compositions containing the fluorochemical triazine compounds, the process for preparing the fluorochemical compounds and compositions, substrates treated with the fluorochemical compounds, melt extrusion of fibers and films containing the fluorochemical compounds and compositions, and coating, polish and marine antifouling compositions to provide oil and water repellency to substrates.
Type:
Grant
Filed:
December 14, 1999
Date of Patent:
May 21, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Gregory D. Clark, Frederick E. Behr, Gary P. Roberts, Steven J. Vander Louw, Gregory K. Hall
Abstract: The present invention provides a polymer composition comprising a fluorochemical oligomeric compound and a thermoplastic or thermoset polymer. The polymer composition is useful in preparing shaped articles such as fibers and films which have desirable oil- and water repellency properties.
Abstract: A fluorochemical composition is described comprising a polymer derived from a fluorochemical urethane (meth)acrylate monomer. The fluorochemical composition is useful for imparting stain release properties to a substrate.
Type:
Grant
Filed:
September 24, 1999
Date of Patent:
May 7, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Kathy E. M. L. A. Allewaert, Pierre J. Vander Elst
Abstract: A homogeneous non-aqueous compositions containing a fluorinated solvent, ozone, and optionally a co-solvent and the use of these compositions for cleaning and oxidizing substrates is described.
Type:
Grant
Filed:
March 31, 2000
Date of Patent:
April 16, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Lawrence A. Zazerra, Frederick E. Behr, Michael J. Parent, Paul E. Rajtar
Abstract: Novel mixtures of perfluoroalkyl halides and derivatives thereof are described. These mixtures contain some compounds with a straight perfluoroalkyl group and some with a branched perfluoroalkyl group. Methods of preparation and use are also described.
Type:
Grant
Filed:
February 15, 2000
Date of Patent:
April 2, 2002
Assignee:
3M Innovative Properties Company
Inventors:
Frederick E. Behr, Rudolf J. Dams, Johan E. DeWitte, Donald F. Hagen
Abstract: Fibers and fibrillated articles are provided by imparting fluid energy to at least one surface of a highly oriented, voided, melt-processed polymeric film. The fibers and fibrillated articles are useful as tape backings, filters, thermal and acoustical insulation and as reinforcement fibers for polymers or cast building materials such as concrete.
Type:
Grant
Filed:
May 7, 1999
Date of Patent:
December 18, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Mario A. Perez, Sundaravel Damodaran, Michael D. Swan
Abstract: The invention provides azeotrope-like compositions consisting essentially of RfOCH3, where Rf is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and one or more organic solvent(s) selected from the group consisting of: straight chain, branched chain and cyclic alkanes containing 6 to 8 carbon atoms; cyclic and acyclic ethers containing 4 to 6 carbon atoms; ketones having 3 carbon atoms; chlorinated alkanes containing 1, 3 or 4 carbon atoms; chlorinated alkenes containing 2 carbon atoms, alcohols containing 1 to 4 carbon atoms, partially fluorinated alcohols containing 2 to 3 carbon atoms, 1-bromopropane, acetonitrile, HCFC 225ca (1,1,-dichloro-2,2,3,3,3 pentafluoropropane and HCFC- 225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane).
Type:
Grant
Filed:
February 14, 2001
Date of Patent:
November 6, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Richard M. Flynn, Dean S. Milbrath, John G. Owens, Daniel R. Vitcak, Hideto Yanome
Abstract: Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion comprising (i) at least one chiral center, which can optionally be heteroatom-substituted; (ii) a terminal fluoroalkyl, fluoroether, perfluoroalkyl, or perfluoroether group; and (iii) an alkylene or fluoroalkylene group optionally containing at least one catenary ether oxygen atom; (b) a chiral or achiral terminal portion consisting of a hydrocarbon or hydrocarbon ether group, and, when chiral, comprising at least one chiral center, which can optionally be heteroatom-substituted; and (c) a central core connecting the terminal portions; the alkylene or fluoroalkylene group of the chiral fluorochemical terminal portion having at least 3 in-chain atoms and being located between the chiral center of the chiral fluorochemical terminal portion and the central core. The compounds have smectic mesophases or latent smectic mesophases and are useful, for example, in liquid crystal display devices.
Type:
Grant
Filed:
December 24, 1997
Date of Patent:
October 30, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Masakazu Hasegawa, Michael P. Keyes, Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad, Terence D. Spawn
Abstract: A homogeneous compositions containing a fluorinated solvent, hydrogen fluoride, and a co-solvent, and the use of these compositions for cleaning and etching of substrates is described.
Type:
Grant
Filed:
March 31, 2000
Date of Patent:
October 30, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Frederick E. Behr, Lawrence A. Zazzera, Paul E. Rajtar, Michael J. Parent
Abstract: The present invention provides a water-soluble and shelf-stable aqueous fluorochemical polymeric treatment useful to treat porous substrates to render them repellent to water- and oil-based stains. The treatment comprises a water-soluble fluorochemical polymer containing only carbon atoms in the backbone, with a plurality of each of the following groups pendent from the backbone: (a) fluoroaliphatic groups, (b) carboxyl-containing groups, (c) oxyalkylene or polyoxyalkylene groups, and, optionally, (d) silyl groups.