| http://www.w3.org/ns/prov#value | - ing to another preferred embodiment of the invention, the intermediate film is a film of thermoplastic acrylic polymer 0.05 to 1.0 mm thick, and this film is joined to a glass sheet with interposition of a polyester film 0.01 to 0.1 mm thick and a layer of thermoplastic cement 0.3 to 0.8 mm thick.
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