Amorphous perfluorinated copolymers

Details Amorphous perfluorinated copolymers Amorphous perfluorinated copolymers

2005-08-30

2005-08-30

Wu, David W. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S242000, C524S462000, C525S326200, C428S542800

Reexamination Certificate

active

06936668

ABSTRACT:
Amorphous perfluorinated copolymers, comprising cyclic perfluorinated units deriving from at least two different perfluorinated comonomers, optionally with units deriving from a perfluorinated monomer containing at least one olefinic unsaturation (perfluoroolefin), or comprising cyclic perfluorinated units and units deriving from a perfluorinated monomer containing at least one olefinic unsaturation, said perfluorinated copolymers having the following combination of properties:substantial absence of unstable polar end groups,polymer Tg higher than 120° C.,narrow monomeric composition distribution.

REFERENCES:
patent: 4789717 (1988-12-01), Giannetti et al.
patent: 4864006 (1989-09-01), Giannetti et al.
patent: 4966435 (1990-10-01), Matsumoto et al.
patent: 5326839 (1994-07-01), Resnick
patent: 5498682 (1996-03-01), Navarrini et al.
patent: 5883177 (1999-03-01), Colaianna et al.
patent: 6300526 (2001-10-01), Navarrini et al.
patent: 2002/0183471 (2002-12-01), Russo et al.
patent: 2003/0022073 (2003-01-01), Wang
patent: 0 226 668 (1987-07-01), None
patent: 0 302 513 (1989-02-01), None
patent: 0 338 755 (1989-10-01), None
patent: 0 645 406 (1995-03-01), None
patent: 0 710 855 (1996-08-01), None
patent: 0 784 064 (1997-07-01), None
patent: 0 752 598 (1997-08-01), None
patent: 0 918 060 (1999-05-01), None
patent: 0 969 025 (2000-01-01), None
Ando, S. et al. “Perfluorinated polymers for optical waveguides”, Chem. Tech., Dec. 1994; pp. 20-27.
Grulke, E. “Solubility Parameter Values”, Polymer Handbook, 3a ed., p. VII/519-559 (Ed. Brandrup e Immergut).
Koike, Y. et al. “Origin of Excess Light Scattering in Poly(methyl methacrylate) Glasses”, Macromolecules, 1992; 25:4807-4815.
Pianca, M. et al. “End groups in fluoropolymers”, Journal of Fluorine Chemistry; 1999; 95:71-84.

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