Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2007-03-13
2007-03-13
Moore, Margaret G. (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S445000, C524S446000, C524S447000, C524S449000, C524S451000, C524S413000, C524S611000, C523S209000, C523S216000
Reexamination Certificate
active
10501788
ABSTRACT:
There is provided a film comprising a layered silicate cation-exchanged with an organic cation and a polyester or polycarbonate. The organic cation is represented by the following formula (I):in-line-formulae description="In-line Formulae" end="lead"?(R)n-L+ (I)in-line-formulae description="In-line Formulae" end="tail"?wherein R is a group represented by the following formula (I-1):wherein R1is a divalent hydrocarbon group having 5 to 20 carbon atoms, and R2is a divalent hydrocarbon group having 1 to 20 carbon atoms,an alkyl group, an aryl group or an aralkyl group, L+is an ammonium ion, a phosphonium ion or a hetero aromatic ion, and n is an integer of 1 to 4, with the proviso that when L+is an ammonium ion or a phosphonium ion, n is 4 and four Rs may be the same or different. This film has the layered silicate highly dispersed therein and is excellent in various properties such as mechanical properties and dimensional stability.
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Int'l Search Report, dated Oct. 14, 2003.
Hashidzume Kiyonari
Kido Nobuaki
Matsumura Shunichi
Moore Margaret G.
Sughrue & Mion, PLLC
Teijin Limited
Toscano Alicia M
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