Anti-fogging thermoplastic resin sheet and formed article

Details Anti-fogging thermoplastic resin sheet and formed article Anti-fogging thermoplastic resin sheet and formed article

2005-01-04

2005-01-04

Nakarani, D. S. (Department: 1773)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Weight per unit area specified

C428S480000, C428S521000, C428S522000, C428S523000, C428S910000

Reexamination Certificate

active

06838168

ABSTRACT:
An anti-fogging thermoplastic resin sheet is provided which has a remarkably improved strength in an anti-fogging coating film thereof, inhibiting coating film breakage during the forming, and which exerts excellent anti-fogging effects even in the case of a deep drawn formed articles and can prevent transfer of the anti-fogging coating film to the opposite surface when the anti-fogging thermoplastic resin sheet is wound in a roll. A formed article having excellent anti-fogging effects is also provided. A thermoplastic resin sheet comprising polystyrene, a polymer alloy of polystyrene and a rubber, a high-impact styrene resin, a copolymer of styrene and an acrylic monomer, polyolefin, polyethylene terephthalate, polyvinyl chloride or polyvinylidene chloride comprises on the surface thereof an anti-fogging coating film comprising a surfactant (A) and cyclodextrin or a water-soluble compound (B) in which hydroxyl groups of cyclodextrin are modified.

REFERENCES:
patent: 5814684 (1998-09-01), Yoshioka
patent: 0599150 (1994-06-01), None
patent: 2001-145983 (2001-05-01), None
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Database WPI—XP-002235317—JP Pub. No. 5098054A (Apr. 20, 1993).
European Search Report dated Apr. 3, 2003.

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