| Patent Number |
Title Of Patent |
Date Issued |
| 7514481 |
Polymer electrolytes crosslinked by e-beam |
April 7, 2009 |
| A method of making a crosslinked polymer is provided as well as the polymer so made, the method comprising the steps of: providing a highly fluorinated fluoropolymer, typically a perfluorinated fluoropolymer, comprising pendent groups which include a group according to the formula -- |
| 7435498 |
Polymer electrolyte membranes crosslinked by nitrile trimerization |
October 14, 2008 |
| A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, by trimerization of nitrile groups contained on groups pendant from the polymer. The resulting |
| 7411022 |
Reinforced polymer electrolyte membrane |
August 12, 2008 |
| A method is provided for making a reinforced polymer electrolyte membrane, such as may be used in electrolytic cells such as fuel cells, by mixing a sulfonate- or sulfonyl halide-functional polymer with a bisamidine compound and subsequently trimerizing the amidine groups of the bisa |
| 7338692 |
Microporous PVDF films |
March 4, 2008 |
| 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. |
| 7285349 |
Polymer electrolyte membrane and method of making |
October 23, 2007 |
| Polymer electrolyte membranes such as are used in fuel cells are provided along with methods of their manufacture. The polymer electrolyte membranes comprise polymers or blends of polymers having an equivalent weight of less than 1200 and a Tg of between 101.degree. C. and 155.degree |
| 7265162 |
Bromine, chlorine or iodine functional polymer electrolytes crosslinked by e-beam |
September 4, 2007 |
| A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, as well as the polymer so made, the method comprising application of electron beam radiation t |
| 7259208 |
Reinforced polymer electrolyte membrane |
August 21, 2007 |
| A method is provided for making a reinforced polymer electrolyte membrane, such as may be used in electrolytic cells such as fuel cells, by mixing a sulfonate- or sulfonyl halide-functional polymer with a bisamidine compound and subsequently trimerizing the amidine groups of the bisa |
| 7214740 |
Fluorinated ionomers with reduced amounts of carbonyl end groups |
May 8, 2007 |
| The present invention is a fluoropolymer comprising a plurality of pendent groups terminating in --CF.sub.2SO.sub.3X, --CF.sub.2SO.sub.2F, or combinations thereof, where X is selected from a group consisting of H.sup.+ and a monovalent cation, and at least one --CF.sub.2Y end group, |
| 7179847 |
Polymer electrolytes crosslinked by e-beam |
February 20, 2007 |
| A method of making a crosslinked polymer is provided as well as the polymer so made, the method comprising the steps of: providing a highly fluorinated fluoropolymer, typically a perfluorinated fluoropolymer, comprising pendent groups which include a group according to the formula -- |
| 7060756 |
Polymer electrolyte with aromatic sulfone crosslinking |
June 13, 2006 |
| A method is provided for obtaining crosslinked polymers having pendent sulfonic acid groups by crosslinking through the sulfonic acid groups or their precursors with aromatic crosslinkers or aromatic pendent crosslinking groups to form aromatic sulfones. Such crosslinked polymers may |
| 7060738 |
Polymer electrolytes crosslinked by ultraviolet radiation |
June 13, 2006 |
| A method is provided for making a crosslinked polymer electrolyte, typically in the form of a membrane for use as a polymer electrolyte membrane in an electrolytic cell such as a fuel cell, as well as the polymer so made, the method comprising application of ultraviolet radiation to |
| 7049379 |
Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates |
May 23, 2006 |
| This invention provides a method of treating fibrous substrates, such as leather, by contacting the substrate with a fluorochemical compound comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluor |
| 6780472 |
Floor finish compositions |
August 24, 2004 |
| A monomer useful in the formulation of a radiation curable coatable composition comprises (a) polyfunctional isocyanurate having at least three terminal reactive groups reacted with (b) hydroxyalkyl acrylate and (c) tertiary amine alcohol in a molar ratio of a:b:c of about 1:1-2.5:0. |
| 6649719 |
Degradable, amorphous, fluorochemical acrylate polymers |
November 18, 2003 |
| Described is a compound having at least one acrylate monomer, said monomer including at least one pendant group of the structure --O--CH(R.sub.f)(R.sub.f '), wherein R.sub.f is a straight chain or branched perfluoroalkyl group with five or less carbon atoms, and R.sub.f ' is a branch |
| 6525127 |
Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates |
February 25, 2003 |
| This invention provides a method of treating fibrous substrates, such as leather, by contacting the substrate with a fluorochemical compound comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluor |
| 6197844 |
Floor finish compositions |
March 6, 2001 |
| A monomer useful in the formulation of a radiation curable coatable composition comprises (a) polyfunctional isocyanurate having at least three terminal reactive groups reacted with (b) hydroxyalkyl acrylate and (c) tertiary amine alcohol in a molar ratio of a:b:c of about 1:1-2.5:0. |
| 5725789 |
Aqueous oil and water repellent compositions |
March 10, 1998 |
| Oil and water repellent compositions for the treatment of fiber containing substrates such as fabric and the like, substrates treated with these compositions and methods for the treatment of substrates are described. The compositions of the invention comprise (a) a polyalkoxylated po |
