| Patent Number |
Title Of Patent |
Date Issued |
| 7521508 |
Electron beam inter-curing of plastic and elastomer blends |
April 21, 2009 |
| Two-phase or single-phase admixtures of a plastic and an elastomer, two or more thermoplastics, or two or more elastomers are irradiated (preferably with electron beam radiation) to cross-link the thermoplastic and, in the case of elastomer and thermoplastic admixtures, generate bi-modal |
| 7521486 |
Branched chain fluoropolymers |
April 21, 2009 |
| Fluoropolymers are made by admixing tetrafluoroethylene, hexfluoropropylene, and vinylidene fluoride; reacting the reaction admixture to generate a set of fluoropolymeric oligomers; irradiating the fluoropolymeric oligomeric precursor admixture (preferably with electron beam radiatio |
| 7452577 |
Electron beam curing of fabricated polymeric structures |
November 18, 2008 |
| Admixtures either of a plastic and an elastomer, a plurality of thermoplastics, or a plurality of elastomers are formed into a shaped item for an article (such as a dynamic seal, a static seal, a gasket, a pump diaphragm, a hose, or an o-ring), and the thermoplastic is then cross-lin |
| 7449524 |
Dynamic vulcanization with fluorocarbon processing aids |
November 11, 2008 |
| A curable fluorocarbon elastomer is dynamically cured in the presence of a major amount of a non-curing thermoplastic material and a minor amount of a second fluorocarbon elastomer that does not cure under the dynamic vulcanization conditions. The non-curing elastomer is preferably prese |
| 7449523 |
Fluorocarbon elastomer compositions containing wear reducing additives |
November 11, 2008 |
| Processable rubber compositions contain a vulcanized fluorocarbon elastomer and wear reducing additives dispersed in a matrix of a thermoplastic polymeric material. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particl |
| 7445725 |
Surface bonding in halogenated polymeric components |
November 4, 2008 |
| Etching the surface (activating the surface) of a halogenated polymer component with an electron beam generates a set of free radical sites in polymeric chains of the surface that sustain for at least 4 hours in an inert environment. The inert environment is provided by a noble gas, |
| 7413697 |
Pre-molding heat treatment of dynamic vulcanizates of fluorocarbon elastomers |
August 19, 2008 |
| Methods for making processable rubber compositions containing fluorocarbon elastomers cured by polyol or phenol curative agents include an optional heat treating step before thermoplastic processing. In one aspect, a dynamic vulcanizate of a fluorocarbon elastomer containing an excess of |
| 7381765 |
Electrostatically dissipative fluoropolymers |
June 3, 2008 |
| A composition of fluoropolymer and dispersed conductive particulate provides an electrically conductive polymeric material resistant to static charge buildup. Radiation curing, especially electron beam radiation curing, is favored for curing fluoroelastomer-based precursor articles i |
| 7351769 |
Dynamic vulcanization of elastomers with in-situ polymerization |
April 1, 2008 |
| Processable rubber compositions comprising a vulcanized elastomer dispersed in a matrix of a thermoplastic polymeric material. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles forming a non-continuous phase. The |
| 7342072 |
Bimodal compounds having an elastomeric moiety |
March 11, 2008 |
| A bi-modal compound is provided having an elastomeric moiety and a second moiety derived from any of a metal, a ceramic, and thermoplastic. At least one free radical site is generated (preferably with electron beam radiation) on an elastomer molecule to provide the elastomeric moiety; |
| 7339448 |
Water resistant encoding material |
March 4, 2008 |
| A cured magnetizable admixture of elastomeric thermoplastic, dispersed magnetizable particulate, and optional dispersed hydrophobic material (such as ethylene acrylic monomer rubber or ethylene-vinyl acetate copolymer) provides elastic elongation of not less than about 50 percent at |
| 7291007 |
Valve ring gate for thermoplastic and thermoset injection molding |
November 6, 2007 |
| An injection molding machine having a first mold portion and a second mold portion. The second mold portion being movable relative to the first mold portion and together defining a mold cavity. The injection molding machine includes a fluid path extending through the first mold portion. |
| 7244329 |
Electron beam curing in a composite having a flow resistant adhesive layer |
July 17, 2007 |
| A composite having two structural layers of (independently) metal, polymer, or ceramic is connected with a polymeric adhesive layer positioned in solid form between the two layers. The adhesive layer is inter-bonded after positioning with at least one structural layer by a bi-modal m |
| 7230038 |
Branched chain fluoropolymers |
June 12, 2007 |
| Fluoropolymers are made by admixing tetrafluoroethylene, hexfluoropropylene, and vinylidene fluoride; reacting the reaction admixture to generate a set of fluoropolymeric oligomers; irradiating the fluoropolymeric oligomeric precursor admixture (preferably with electron beam radiatio |
| 7153908 |
Peroxide cured fluorocarbon elastomer compositions |
December 26, 2006 |
| A process involves adding a peroxide masterbatch to a molten blend of a fluorocarbon elastomer and a thermoplastic material. The peroxide masterbatch contains greater than or equal to 5% weight percent organic peroxide, further contains a fluorocarbon elastomer, and typically also co |
| 7151134 |
Dynamic vulcanization of polyurethane elastomeric material in the presence of thermoplastics |
December 19, 2006 |
| A thermoplastically processable cured rubber composition comprises a crosslinked or cured urethane polymer dispersed in a matrix made of a thermoplastic polymeric material. In one aspect, the matrix forms a continuous phase and the crosslinked urethane polymer is in the form of parti |
| 7135527 |
Elastomeric compositions containing fluoropolymer blends |
November 14, 2006 |
| Processable rubber compositions contain a vulcanized fluorocarbon elastomer dispersed in a thermoplastic matrix comprising a fully fluorinated polymer and a partially fluorinated polymer. The processing temperature is below the melting point of the fully fluorinated polymer. The comp |
| 7135122 |
Polytetrafluoroethylene composites |
November 14, 2006 |
| Composites of polytetrafluoroethylene and a structural material (polymer, metal, ceramic, leather, or wood) are bonded with a cured admixture of tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer, polyethylene-oxide-modified silicone polymer coupling agent, and ox |
| 7022769 |
Dynamic vulcanization of fluorocarbon elastomers |
April 4, 2006 |
| Processable rubber compositions contain a vulcanized fluorocarbon elastomer dispersed in a matrix of a non-fluorine containing thermoplastic polymeric material. In one embodiment the matrix forms a continuous phase and the vulcanized elastomeric material is in the form of particles f |
