Patent ID: 9605128
Date: 2017-03-28
CPC Classifications: C08J,C08K,C08L,C09D,Y10T

Claim:
1. A gas barrier laminate having: a gas barrier layer (B) formed on at least one surface of a plastic base material, the gas barrier layer (B) comprising a polycarboxylic acid polymer, and containing 0.10 to 1.4% by weight of a monovalent metal element, at least not less than 5.0% by weight of a polyvalent metal element, and 0.01 to 3.0% by weight of a nitrogen element per the total weight of nitrogen and carbon, and a layer (A) that contains an isocyanate compound having at least two isocyanate groups in a molecule thereof, the layer (A) being formed between the plastic base material and the gas barrier layer (B); wherein a region (a) free of the alkaline compound of a polyvalent metal is formed in the layer (A) on the side of the gas barrier layer (B), and the content of nitrogen in the region (a) is larger than the content of nitrogen in the layer (A) other than the region (a).