PTFE Copolymers
Tetrafluoroethylene can be copolymerized with other monomers. (RDC 1/8/2011)
Recent US Patents
10/12/2010
7,811,977
Thermoplastic resin composition, resinous material including same composition, and sliding members using same material
Oto and Hashimoto of Nissan Motor, Japan developed a low friction material for chain guides in an engines with oil and heat resistance. The material consists of 5 to 40 parts by weight of crosslinked tetrafluoroethylene polymer or copolymers and 95 to 60 parts engineering thermoplastic. (RDC 1/11/2011)
Recent Journal Articles
12/10/2010
7,812,086
Fluorinated elastomer latex, its production method, fluorinated elastomer and fluororubber molded product
Funaki of Ashai Glass, Japan has developed a fluorinated elastomer latex containing an aqueous medium, a fluorinated elastomer dispersed in the aqueous medium in an amount of from 10 to 60 mass % and a fluorinated emulsifier. (RDC 1/11/2011)
10/29/2010
Influence of alternating sequential fraction on the melting and glass transition temperatures of ethylene–tetrafluoroethylene copolymer
(4831-4835) Polymer 51 #21 (2010)
Arai et al estimated the melting point of a perfectly alternating copolymer is estimated to be 295 °C on the basis of the dependence of Tm using a modified Flory’s equation. The corresponding Tg was estimated as 145 °C by applying a modified Gibbs–Damnation’s equation.