Gas barrier polymer and gas barrier laminate using same
AssigneeMitsui Chemicals Tohcello, Inc.
InventorsKenji ODAGAWA, Shingo SUZUKI, Eiichi MORIYA
Life of this patent
Estimating the term…
Abstract
A gas barrier polymer is formed by heat-curing a mixture including polycarboxylic acid and a polyamine compound, in which, in an infrared absorption spectrum, when a straight line connecting a measurement point at 1493 cm−1 and a measurement point at 1780 cm−1 is set as a baseline, an absorption intensity at 1660 cm−1 is set as I(1660), and an absorption intensity at 1625 cm−1 is set as I(1625), R represented by Equation (1) is greater than 1. R=I(1660)/I(1625)−{−0.65×(total amine/COOH)+0.4225} (1)
Claims7
A gas barrier polymer formed by heat-curing a mixture including polycarboxylic acid and a polyamine compound,
- wherein, in an infrared absorption spectrum of the gas barrier polymer, when a straight line connecting a measurement point at 1493 cm−1 and a measurement point at 1780 cm−1 is set as a baseline, an absorption intensity at 1660 cm−1 is set as I(1660), and an absorption intensity at 1625 cm−1 is set as I(1625),
- R represented by Equation (1) is greater than 1,
- R=I(1660)/I(1625)−{−0.65×(total amine/COOH)+0.4225} (1)
- (in Equation (1), “total amine” is a total number of moles of primary, secondary, and tertiary amino groups included in the polyamine compound in the mixture, and “COOH” is the number of moles of —COOH groups included in the polycarboxylic acid in the mixture).
Dependencies are inferred from the claim text.