Stock material or miscellaneous articles – Composite – Of polycarbonate
Reexamination Certificate
2006-07-04
2006-07-04
Boykin, Terressa (Department: 1711)
Stock material or miscellaneous articles
Composite
Of polycarbonate
C359S642000, C428S142000, C428S411100
Reexamination Certificate
active
07070859
ABSTRACT:
A laminate which is excellent in appearance, adhesion, scratch resistance, abrasion resistance and hot water resistance and has a high level of weatherability and excellent durability, and an acrylic resin composition and an organosiloxane resin composition both of which can be used for the manufacture of the above laminate and have excellent storage stability.The laminate comprises a polycarbonate substrate, a first layer formed on the surface of the polycarbonate substrate, and a second layer formed on the surface of the first layer, whereinthe first layer is composed of a crosslinked acrylic copolymer and an ultraviolet light absorber, and the second layer is composed of a crosslinked organosiloxane polymer; andthe crosslinked acrylic copolymer comprises specific recurring units and an urethane bond in a specific ratio, and the organosiloxane polymer has a specific structure composed of colloidal silica and alkoxysilanes.
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Ekinaka Tatsuya
Imanaka Yoshihiko
Kajiwara Shunsuke
Kita Toshio
Niimi Ryou
Boykin Terressa
Teijin Chemicals Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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