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Fluoropolymer Materials

Patent Abstracts

From 08/25/2014 through 5/29/2012

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Patents with Abstracts

5. 8,257,824 
Fluoropolymer containing laminates
 
Hull et al of 3M, Minnesota, developed multilayer fluoropolymer films or laminates as backing films for solar cells. This multilayer film includes a polyester intermediate layer.  The first outer layer is a semi-crystalline fluoropolymer with a tensile modulus of less than 100,000 psi. The intermediate layer has a shrinkage rate of less than 1% at 150 C. when held for about 15 minutes and a second outer layer is an olefinic polymer. (RDC 9/14/2012)

4. 8,211,977 
Polymeric compositions with adhesive properties
 
Wautier and Gauthy of Solvay, Belgium, developed an adhesive consisting of (1) at least one fluoropolymer (A) grafted by at least one compound (a), wherein the compound (a) contains at least one functional group (f1) capable of conferring adhesion properties on the fluoropolymer; (2) at least one olefin polymer (B) grafted by at least one compound (b), wherein the compound (b) contains at least one functional group (f2) capable of conferring adhesion properties on the olefin polymer and of reacting with the functional group (f1) contained in the compound (a); and (3) at least one polymer (C) chosen from polyesters and polyamides. (RDC 7/10/2012)

3. 8,211,964 
Curable composition, molded article obtained from same and process for production of molded article
 
Hirano of Daikin Industries, Japan, developed a curable composition including a fluorine-containing elastomer having a cyano group in its trunk chain and/or side chain and inorganic nitride particles in an amount of 0.1 to 20 parts by weight based on 100 parts by weight of the fluorine-containing elastomer, or a curable composition including a specific crosslinking agent selected from an oxazole crosslinking agent, an imidazole crosslinking agent and a thiazole crosslinking agent, a fluorine-containing elastomer having a cure site crosslinkable with the crosslinking agent and inorganic nitride particles. (RDC 7/10/2012)

2. 8,211,535 
Nano-fibrils in a fuser member
 
Qi et al of Xerox, Connecticut, developed a fuser member consisting of a substrate and a release layer. The release layer is disposed on the substrate and includes carbon nanotubes. The carbon nanotubes have a hydroxyphenylmaleimide group covalently bonded to an outer surface of the plurality of carbon nanotubes and a fluoroelastomer shell layer covalently bonded to the hydroxyphenylmaleimide. The carbon nanotubes are in dispersed one or more fluoro-materials. (RDC 7/9/2012)

1. 8,178,592 
Foamable fluoropolymer composition
 
Burch, Venkataraman and Young  of DuPont, Delaware, developed a foamable fluoropolymer containing a foam cell nucleating agent.  The fluoropolymer consists of melt-fabricable tetrafluoroethylene-/hexafluoropropylene copolymer and tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, wherein the alkyl contains 1 to 4 carbon atoms, wherein the melting temperature of said tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer is no more than 35.degree. C. greater than the melting temperature of said tetrafluoroethylene /hexafluoropropylene copolymer, and/or wherein said tetrafluoroethylene /hexafluoropropylene copolymer and said tetrafluoroethylene /perfluoro(alkyl vinyl ether) copolymer each have a melt flow rate (MFR) within the range of 1 to 40 g/10 min and the MFR of one of said copolymers is at least twice that of the other of said copolymers. (RDC 5/29/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

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E-Mail: cornelrd@bee.net  

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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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** Date of latest addition; date of first entry is 5/29/2012.