Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 8404782 | Fluorine-containing polymer powder, method for producing the same and coated article A stabilized fluorine-containing polymer powder having an average particle size of 5 to 100 μm is prepared by contacting a fluorine-containing polymer powder, which is prepared by milling the fluorine-containing polymer and removing fine particles, fibrous particle... | 03/26/2013 |
| 8354201 | Fuel cell with spatially non-homogeneous ionic membrane A fuel cell includes a first flow field plate defining at least one flow field channel. A cathode catalyst layer is disposed over at least a portion of the first flow field plate. A polymeric ion conducting membrane is disposed over cathode catalyst layer. An anode ... | 01/15/2013 |
| 8349965 | Fluororubber composition capable of forming crack-resistant seal and crack-resistant seal formed from the composition A fluororubber composition according to the present invention contains 0.1 to 3 parts by weight of a polyol compound, 0.1 to 4 parts by weight of a peroxide crosslinking agent, and 1 to 9 parts by weight of a co-crosslinking agent per 100 parts by weight of a peroxi... | 01/08/2013 |
| 8309660 | Perfluoroelastomer seal material The present invention provides a perfluoroelastomer seal material in which adhesive strength, contamination, corrosion and color change of a contacted surface with a seal material are improved, and an amount of an uncrosslinked polymer component is at most 1% by wei... | 11/13/2012 |
| 8236901 | Fluorinated compound, fluoropolymer and method for producing the compound Provided is a novel fluorinated compound, a fluoropolymer, and a method for producing the compound. A monomer of the compound has a formula F2═CFCF2C(X)(C(O)OZ)(CH2)nCR═CHR, wherein X is a hydrogen atom, a cyano group,... | 08/07/2012 |
| 8198375 | Trifluorovinyl aromatic containing poly(alkyl ether) prepolymers The present invention provides prepolymers based on poly(alkyl ethers) having terminal trifluorovinyl aromatic containing groups and polymers produced from such prepolymers. The prepolymers and polymers are useful as biomedical devices such as contact lenses or intr... | 06/12/2012 |
| 8183325 | Perfluorocyclobutane copolymers The present invention provides copolymer having repeating units based on polyoxyalkylene radicals, polysiloxane radicals and perfluorocyclobutane radicals. The copolymers are useful as biomedical devices such as contact lenses or intraocular lenses. ... | 05/22/2012 |
| 8058352 | Perfluorocyclobutane based water vapor transfer membranes A membrane humidifier assembly includes a first flow field plate adapted to facilitate flow of a first gas thereto and a second flow field plate adapted to facilitate flow of a second gas thereto. A polymeric membrane is disposed between the first and second flow fi... | 11/15/2011 |
| 8053530 | Polyelectrolyte membranes made of poly(perfluorocyclobutanes) with pendant perfluorosulfonic acid groups and blends with poly(vinylidene fluoride) A polymer useful as an ion conductor in fuel cells includes a perfluorocyclobutyl moiety and pendant PFSA side groups. The polymer is made by a variation of the Ullmann reaction. Ion conducting membranes incorporating the polymer are provided. ... | 11/08/2011 |
| 8048963 | Ion exchange membrane having lamellar morphology and process of making the same An ion exchange membrane is prepared from a block copolymer comprising a hydrophobic polymer segment and a polar polymer segment. The ion exchange membrane is formed by placing a film layer in steam, water or an electric field at a temperature greater than about 40... | 11/01/2011 |
| 8044146 | Combination of main-chain and side-chain sulfonation of PFCB-6F high-temperature fuel cell membranes A polymer useful as an ion conducting membrane for fuel cell applications includes both main chain and side chain protogenic groups. Methods for preparing the polymer include addition of the side chains both before and after addition of the protogenic groups. ... | 10/25/2011 |
| 8044145 | Cross-linkable fluoroelastomer, its composition and cross-linked rubber molded product To provide a cross-linkable fluoroelastomer, a cross-linkable fluoroelastomer composition and a cross-linked rubber molded products thereof. A cross-linkable fluoroelastomer having a Mooney viscosity of from 20 to 300, obtainable by heat treating a mixture of... | 10/25/2011 |
| 8030412 | Active-energy-ray-curable coating composition, cured product thereof, and novel curable resin The present invention relates to an active-energy-ray-curable coating composition containing, as essential components, a radical-polymerizable resin (I) containing a polymer structure (α) of a radical-polymerizable unsaturated monomer and a poly(perfluoroalkylene e... | 10/04/2011 |
| 8013071 | Composition for aqueous coating material and process for its production, and two-component curable aqueous coating material kit A composition for aqueous coating material which has a low content of an organic solvent and presents little burden on the environment and which is excellent in storage stability. A composition for aqueous coating material, which comprises a synthetic resin containi... | 09/06/2011 |
| 8008404 | Composite membrane A composite membrane for fuel cell applications includes a support substrate with a predefined void volume. The void volume is at least partially filled with an ion conducting polymer composition. Characteristically, the ion conducting polymer composition includes a... | 08/30/2011 |
| 8003732 | Gradient reinforced proton exchange membrane An ion conducting polymeric structure suitable for fuel cell applications is provided. The polymeric structure comprises a non-homogenous polymeric layer. The non-homogeneous layer is a blend of a first polymer comprising cyclobutyl moiety; and a second polymer havi... | 08/23/2011 |
| 7985805 | Polyelectrolyte membranes comprised of blends of PFSA and sulfonated PFCB polymers A polymer blend useful as an ion conductor in fuel cells includes a first polymer having a cyclobutyl moiety and a second polymer include a sulfonic acid group. ... | 07/26/2011 |
| 7977433 | Fluororubber composition and production method of cross-linked fluororubber product A fluororubber composition including a polyol-crosslinkable fluororubber; a cross-linking accelerator comprising a quaternary ammonium salt; and a polyol crosslinking agent; wherein the weight ratio X (quaternary ammonium salt/polyol crosslinking agent) between the ... | 07/12/2011 |
| 7960480 | Process for coagulating fluoroelastomers In a process for the manufacture of fluoroelastomers, a water-soluble polymeric coagulant is employed that is an aqueous solution of polyethyleneimine or its copolymers. ... | 06/14/2011 |
| 7897693 | Proton conductive polymer electrolytes and fuel cells In one embodiment, a copolymer comprises a sulfonatable segment covalently linked to an un-sulfonatable segment through an organic linking group. The sulfonatable group segment may be sulfonated through direction sulfonation or sulfonation through a spacer molecule.... | 03/01/2011 |
| 7897692 | Sulfonated perfluorocyclobutane block copolymers and proton conductive polymer membranes A sulfonated aromatic perfluorocyclobutane block copolymer comprises a hydrophobic perfluorocyclobutane ether chain segment and a hydrophilic sulfonated perfluorocyclobutane ether chain segment. The sulfonated perfluorocyclobutane copolymer may be used to make proto... | 03/01/2011 |
| 7897691 | Proton exchange membranes for fuel cell applications A proton conductive graft polymer comprises at least a structure unit of a sulfonated polymer side chain covalently attached to a hydrophobic perfluorocyclobutane polymer main chain. The sulfonated condensation polymer side chain has a high local ion exchange capaci... | 03/01/2011 |
| 7888433 | Sulfonated-polyperfluoro-cyclobutane-polyphenylene polymers for PEM fuel cell applications A polymer for ion conductor applications includes a polymer segment having a perfluorocyclobutyl moiety and a polymer segment not having such a moiety. One of these polymer segments is sulfonated to improve ionic conductivity. Fuel cells incorporating the ion conduc... | 02/15/2011 |
| 7863387 | Dehydrofluorination and surface modification of fluoropolymers for drug delivery applications Fluoropolymers having a —CF adjacent to a —CH which are subsequently dehydrofluorinated to create a —C═C— can be used as controlled release carriers for therapeutic agent(s) by covalently conjugating the therapeutic agent(s) to the fluoropolymer at the —... | 01/04/2011 |
| 7834097 | Fluoroelastomers VDF-based curable fluorelastomers, having a glass transition temperature from −10° C. to −35° C., comprising: B) monomer of formula: CF2═CFOCF2OCF3 (a), C) one or more comonomers selected from: tetrafluoroethylene (TFE), per-... | 11/16/2010 |
| 7834096 | Perfluoroelastomer seal material The present invention provides a perfluoroelastomer seal material in which adhesive strength, contamination, corrosion and color change of a contacted surface with a seal material are improved, and an amount of an uncrosslinked polymer component is at most 1% by wei... | 11/16/2010 |
| 7790811 | Pellicle and novel fluoropolymer A useful fluoropolymer excellent in transparency and durability to a short wavelength light (an ArF excimer laser having an irradiation wavelength of 193 nm and a F2 excimer laser having an irradiation wavelength of 157 nm) as e.g. a pellicle material, wherein a pol... | 09/07/2010 |
| 7781532 | Fluorine-containing polymer powder, method for producing the same and coated article A stabilized fluorine-containing polymer powder having an average particle size of 5 to 100 μm is prepared by contacting a fluorine-containing polymer powder, which is prepared by milling the fluorine-containing polymer and removing fine particles, fibrous particle... | 08/24/2010 |
| 7772327 | Fluorine-containing elastomer and composition thereof for crosslinking To provide a novel crosslinking system of fluorine-containing elastomer giving a crosslinked product particularly having improved mechanical strength and compression set at high temperature. A fluorine-containing rubber composition comprising a fluorine-containing e... | 08/10/2010 |
| 7767763 | Fluoroelastomers VDF-based curable fluoroelastomers, having a glass transition temperature lower than −49° C., preferably lower than −50° C., and having the following composition, as percent moles: A) from 25% to 50%, preferably from 30% to 45%, of the monomer of formula: CF2... | 08/03/2010 |
| 7767764 | Fluoroelastomers VDF curable fluoroelastomers, ionically cured, having a compression set after a time of 24 h (ASTM D 39/B) at −10° C. lower than 60%, preferably lower than 50% and at −25° C. lower than 90%, preferably lower than 75%, comprising hexafluoropropene (HFP) in amou... | 08/03/2010 |
| 7622531 | Powder paint composition The present invention relates to a powder paint composition comprising at least (a) a thermosetting polymer having functional groups capable of reacting with β-hydroxyalkylamide units (b) a compound comprising β-hydroxyalkylamide units and (c) a deceleration agent... | 11/24/2009 |
| 7582703 | Cross-linkable compounds comprising a perfluoropolyether moiety The invention pertains to a cross-linkable compound comprising a perfluoropolyether (PFPE) moiety derived from an hydroxy-terminated PFPE-oil, which is bonded through a spacer with an ethylenically unsaturated group, wherein the spacer extends over at least three ca... | 09/01/2009 |
| 7582704 | Biomedical devices Biomedical devices formed from a polymerization product of a monomeric mixture comprising one or more monomers comprising at least two trifluorovinyl groups are provided. Also provided are biomedical devices formed from a network of a polymer comprising one or more ... | 09/01/2009 |
| 7538160 | Trifluorovinyl aromatic containing poly(alkyl ether) prepolymers The present invention provides prepolymers based on poly(alkyl ethers) having terminal triflurovinyl aromatic containing groups and polymers produced from such polymers. The prepolymers and polymers are useful as biomedical devices such as contact lenses or intraocu... | 05/26/2009 |
| 7534836 | Biomedical devices Biomedical devices are provided herein which are formed from a polymerization product of a monomeric mixture comprising one or more monomers comprising one or more trifluorovinyl groups, e.g., a perfluorocyclobutane containing polymer. ... | 05/19/2009 |
| 7429631 | Fluorocopolymer A fluorecopolymer which comprises repeating units (a) based on tetrafluoroethylene, repeating units (b) based on perfluoro(methyl vinyl ether) and repeating units (c) based on perfluoro(propyl vinyl ether) in a molar ratio of (a)/(b)/(c) of 40-70/3-57/3-57. The fluo... | 09/30/2008 |
| 7425600 | Polymerization products and biomedical devices containing same Polymerization products formed from a monomeric mixture comprising (a) one or more first monomers of the general formula I: A-L-R1—(X—CF═CF2)n (I) wherein R1 represents one or more inertly su... | 09/16/2008 |
| 7420017 | Process for producing fluorocopolymer A process for preparing a fluorine-containing copolymer by an emulsion polymerization method in the presence of aqueous ammonia as a pH modifier, and a molded article obtainable by melt molding or crosslinking molding the fluorine-containing copolymer. In preparing ... | 09/02/2008 |
| 7414084 | Fluororesin powder coating composition and article having coating film A composition which can improve impact resistance of a coating film while maintaining superior weather resistance and gloss of the coating film of a fluororesin powder coating material is provided. A fluororesin powder coating composition containing the following pa... | 08/19/2008 |
