Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-08-15
2006-08-15
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...
C526S249000, C427S553000, C427S555000
Reexamination Certificate
active
07091294
ABSTRACT:
A fluoropolymer (A) having units derived from monomer units formed by cyclopolymerization of at least one fluorinated diene selected from a fluorinated diene represented by the formula (1) and a fluorinated diene represented by the formula (2), and units derived from monomer units formed by cyclopolymerization of a fluorinated diene represented by the formula (3):in-line-formulae description="In-line Formulae" end="lead"?CF2═CFCF2—C(CF3)(OR1)—CH2CH═CH2 (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?CF2═CFCH2—CH((CH2)nC(CF3)2(OR1))—CH2CH═CH2 (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?CF2═CFCH2—CH(COOR2)—CH2CH═CH2 (3)in-line-formulae description="In-line Formulae" end="tail"?wherein R1represents a hydrogen atom, a blocked group of a hydroxyl group capable of being converted into a hydrogen atom by an acid, or a blocked carboxyl group-containing organic group capable of being converted into a carboxyl group-containing organic group by an acid, R2represents a hydrocarbon group having at most 20 carbon atoms, and n represents 0 or 1.
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patent: 6737215 (2004-05-01), Dammel et al.
patent: 6818258 (2004-11-01), Kaneko et al.
patent: 2005/0234206 (2005-10-01), Takebe et al.
patent: WO 00/17712 (2000-03-01), None
patent: WO 01/63362 (2001-08-01), None
Yoko Takebe, et al., “A New Monocyclic Fluoropolymer structure for 157-nm Photoresists”, Proceedings of SPIE, vol. 5376, (2004), pp. 151-158.
U.S. Appl. No. 11/353,149, filed Feb. 14, 2006, Takebe et al.
Eda Masataka
Takebe Yoko
Yokokoji Osamu
Asahi Glass Company Limited
Wu David W.
Wu Ives
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