IONOMER RESIN
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United States of America Patent
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Issued Date -
Jan 4, 2024
app pub date -
Nov 19, 2021
filing date -
Nov 27, 2020
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Abstract
The present invention relates to an ionomer resin comprising a carboxylic acid ester unit (A), a carboxylic acid unit (B), a neutralized carboxylic acid unit (C), and an ethylene unit (D), wherein, based on the total of monomer units constituting the ionomer resin, the content of the carboxylic acid ester unit (A) is 0.01 to 1.8 mol %, and the total content of the carboxylic acid ester unit (A), the carboxylic acid unit (B), and the neutralized carboxylic acid unit (C) is 6 to 10 mol %, and based on measurement of the molecular weight in terms of polyethylene by GPC with the carboxylic acid unit (B) and the neutralized carboxylic acid unit (C) being converted into a methyl carboxylate unit, the ratio of a low-molecular-weight component having a molecular weight of 2,500 g/mol or less obtained from an integral molecular weight distribution curve is 2.6 to 4.0 mass %, and the number average molecular weight is 8,000 to 14,000 g/mol.
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