Transparent films and laminates having the same
AssigneeBridgestone Corporation
InventorsItsuo Tanuma, Hideo Takeichi, Hiromi Ohtsuru, Toshio Honda
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Abstract
A highly transparent film having high strength, suitable extensibility, high weather resistance, low moisture absorption and so on is disclosed, which consists mainly of EVAT. And also various laminates making the most of the above properties of the film are disclosed, which comprise the EVAT interposed between two inorganic material sheets, two organic material sheets, or an inorganic material sheet and an organic material sheet.
Claims2
A laminate comprising two glass sheets, two transparent films sandwiched therebetween, each film consisting essentially of an ethylene vinyl acetate copolymer triallyl isocyanurate-crosslinked structure, and a semiconductor wafer interposed between the films;
- wherein,
- (a) the content of vinyl acetate in the ethylene vinyl acetate copolymer of the ethylene vinyl acetate copolymer triallyl isocyanurate-crosslinked structure is 15-50% by weight, and
- (b) the content of triallyl isocyanurate based on 100 parts by weight of the ethylene vinyl acetate copolymer is 0.5-20 parts by weight.
A safety sandwich glass comprising a transparent film interposed between two glass sheets wherein said transparent film consists essentially of an ethylene vinyl acetate copolymer triallyl isocyanurate-crosslinked structure;
- and, wherein,
- (a) the content of vinyl acetate in the ethylene vinyl acetate copolymer of the ethylene vinyl acetate copolymer triallyl isocyanurate-crosslinked structure is 15-50% by weight, and
- (b) the content of triallyl isocyanurate based on 100 parts by weight of the ethylene vinyl acetate copolymer is 0.5-20 parts by weight.
Dependencies are inferred from the claim text.