HIGH-NITRILE POLYMER LATEX, HIGH-NITRILE POLYMER AND SUBSTRATE-HIGH-NITRILE POLYMER LAMINATE

摘要

PROBLEM TO BE SOLVED: To provide a high-nitrile polymer having both excellent low- temperature film-forming property and gas barrier property, a latex in which the polymer is emlusified in an aqueous medium and a laminate of the polymer with a substrate. SOLUTION: The polymer comprises an unsaturated nitrile unit of about 65-80 wt.% and an acrylate unit represented by the formula (I) CH2 =CH- COO-(CH2 )n -R1 (wherein, n is an integer of 1-4; R1 is OH or CN) of about 20-35 wt.%. And has the oxygen transmission rate at 23 deg.C and RH of 0-85% of 0.3-1.8 cm<3> .mm/(m<2> .day.MPa). The latex and the laminate contains the polymer.