Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Reexamination Certificate
2005-04-20
2011-12-13
Sample, David (Department: 1783)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
C428S220000, C524S088000, C524S611000
Reexamination Certificate
active
08075984
ABSTRACT:
The present invention provides a thermoplastic resin composition characterized by comprising (A) a thermoplastic resin and (B) a white pigment in a mass ratio of 50:50 to 90:10 and further comprising (C) a black coloring material and a blue coloring material; and provides a formed article using the resin composition. The above thermoplastic resin composition is an improvement of the conventional technique for preventing the permeation of light from a thin part of the formed article while securing a satisfactory reflectance, and can markedly improve the light blocking effect of a thermoplastic resin composition, without the increase of the number of parts, the employment of a more complicated process, or the like.
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patent: 5837757 (1998-11-01), Nodera et al.
patent: 6941057 (2005-09-01), Okamoto et al.
patent: 09-330048 (1997-12-01), None
patent: 2001 302872 (2001-10-01), None
patent: WO 2004/020522 (2004-03-01), None
Horio Yoshihiko
Kawato Hiroshi
Ferguson Lawrence D
Idemitsu Kosan Co. Ltd.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sample David
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