Adhesive composition, laminate and optical article comprising the laminate

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United States of America Patent

PATENT NO 12065590
APP PUB NO 20230272252A1
SERIAL NO

18136118

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Abstract

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To provide an adhesive composition capable of firmly bonding polymer sheets together, comprising:

    (I) 100 parts by mass of an end-unreactive urethane urea resin; and(III) 4.0 to 20 parts by mass of a polyisocyanate compound having at least two isocyanate groups in the molecule, wherein the polyisocyanate compound (III) contains (IIIA) a polyisocyanate compound having an isocyanate group bonded to secondary carbon and (IIIB) a polyisocyanate compound having 4 to 30 carbon atoms in the molecule other than the component (IIIA), and the amount of the component (IIIB) is 10 to 500 parts by mass based on 100 parts by mass of the component (IIIA).

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Patent Owner(s)

Patent OwnerAddress
TOKUYAMA CORPORATIONSHUNAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiraren, Toshimitsu Shunan, JP 15 42
Momoda, Junji Shunan, JP 93 591
Mori, Katsuhiro Shunan, JP 95 1511

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