ADHESIVE COMPOSITIONS AND USES THEREOF
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United States of America Patent
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Sep 23, 2015
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Sep 23, 2014
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Abstract
Adhesive compositions are disclosed. In some embodiments, the adhesive compositions comprise an organosiloxane block copolymer, wherein the blocks of the block copolymer consist of an —Si—O—Si— backbone. The organosiloxane block copolymer comprises at least two blocks that are phase-separated. The organosiloxane block copolymer has at least a first glass transition temperature (Tg1) and a second glass transition temperature (Tg2), the second glass transition temperature being at 25° C. or higher. A 1 mm thick cast film of the adhesive composition has, in some embodiments, a light transmittance of at least 95%. The adhesive composition of the various embodiments of the present invention can be B-staged at about Tg2 or at about 100° C. below Tg2.
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