LAMINATE AND METHOD FOR PRODUCING PNEUMATIC TIRE
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United States of America Patent
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Apr 23, 2020
app pub date -
Apr 11, 2018
filing date -
Apr 18, 2017
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Abstract
Provided is a laminate which comprises a layer of a polyimide resin and a layer of an unvulcanized rubber composition, and wherein the rubber composition contains (A) a rubber component, (B) 20-100 parts by mass of a polyamide polyether elastomer per 100 parts by mass of the rubber component (A), (C) a condensation product of formaldehyde and a compound represented by formula (1) (wherein each of R1, R2, R3, R4 and R5 is independently selected from the group consisting of a hydrogen atom, a hydroxyl group, an alkyl group having 1-8 carbon atoms, a hydroxyalkyl group having 1-8 carbon atoms and an alkoxide group having 1-8 carbon atoms), (D) a methylene donor and (E) a vulcanizing agent. A laminate according to the present invention exhibits improved bonding strength between a layer of a polyimide resin and a layer of a rubber composition.
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