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
2007-06-05
2007-06-05
Wu, David W. (Department: 1713)
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...
C524S575000, C524S577000, C524S081000
Reexamination Certificate
active
10805319
ABSTRACT:
A resin composition comprising a 2-(1-arylalkylidene) acetic ester and at least one resin selected from a methyl methacrylate resin, a styrene resin and a methyl methacrylate-styrene copolymer resin is provided, wherein the acetic ester is contained in the composition in an amount of from about 0.0005 part by weight to about 0.1 part by weight with respect to 100 parts by weight of the resin. The resin composition is improved in durability without deteriorating the excellent properties of the resin, such as being colorless and transparent.
REFERENCES:
patent: 6337362 (2002-01-01), Reynolds et al.
patent: 6433044 (2002-08-01), Maekawa et al.
J.E. Pickett et al., “Photodegradation of UV screeners”,Polymer Degradation and Stability, vol. 42, 1993, pp. 231-244.
Maekawa Tomohiro
Manabe Kenji
Sastri Satya B.
Sughrue & Mion, PLLC
Sumitomo Chemical Company Limited
Wu David W.
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