Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Reexamination Certificate
2005-06-21
2005-06-21
Jones, Deborah (Department: 1773)
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
C428S515000, C428S520000
Reexamination Certificate
active
06908670
ABSTRACT:
The present invention provides a laminated extruded resin sheet comprising a methyl methacrylate resin produced by laminating resin layers (B) on both surfaces of a resin layer (A) by a multilayer-extrusion molding method, the resin layer (A) being made by dispersing uniformly 0 to 50 parts by weight of rubber-like polymer into 100 parts by weight of a methyl methacrylate resin, and the resin layer (B) being made by dispersing uniformly 1 to 50 parts by weight of an insoluble methyl methacrylate resin particle having a weight-average particles size of 1 to 100 um into 100 parts by weight of a base resin comprising 100 parts by weight of a methyl methacrylate resin and 0 to 70 parts by weight of rubber-like polymer. The laminated extruded resin sheet of the present invention provides a molder article having smaller bias of thickness in secondary thermoforming.
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Colton Kendrew H.
Fitch Even Tabin & Flannery
Jones Deborah
Kruer Kevin R.
Sumitomo Chemical Company Limited
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