Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2011-07-12
2011-07-12
Teskin, Fred M (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S285000, C525S328100
Reexamination Certificate
active
07977441
ABSTRACT:
An acetylene-based polymer, comprising n recurring units represented by the following Formula (1):in-line-formulae description="In-line Formulae" end="lead"?CH═CAn (1)in-line-formulae description="In-line Formulae" end="tail"?wherein, n is an integer of 10 to 10,000; each A represents a group selected from a naphthyl group, a phenanthryl group, a pyrenyl group and an anthryl group, which is mono- or di-substituted with a group selected from alkyl groups, alkyl groups substituted with aromatic hydrocarbon groups, R1—O— groups, —S—R2groups, —NR3R4groups, a cyano group, a carboxyl group, R5SO2— groups, —COOR6groups, —CON(R7)(R8) groups and —COR9groups (each of R1, R5, R6and R9is an alkyl group, each of R2, R3, R4, R7and R8is a hydrogen atom or an alkyl group); and the recurring units may be the same as or different from each other.
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Birch & Stewart Kolasch & Birch, LLP
National Institute of Advanced Industrial Science and Technology
Teskin Fred M
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