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US 12,054,645 B2Granted
Ethylene-vinyl alcohol copolymer, method for producing same, and use thereof
AssigneeKuraray Co., Ltd.
InventorsTatsuya Tanida, Keisuke Morikawa, Masako Katayama
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Abstract
An ethylene-vinyl alcohol copolymer may have an ethylene unit content of 1 mol % or more and less than 20 mol %, a viscosity-average polymerization degree of 200 to 5000 and a saponification degree of 80 to 99.7 mol %. A block character of ethylene units in the ethylene-vinyl alcohol copolymer may be 0.90 to 0.99. Such an ethylene-vinyl alcohol copolymer may have excellent high-speed coating ability and water-resistant adhesiveness, particularly when being used as an adhesive.
Claims20
An ethylene-vinyl alcohol copolymer, comprising:
- ethylene units in a content range of from 1 to less than 20 mol. %;
- wherein the ethylene-vinyl alcohol copolymer has a viscosity-average polymerization degree in a range of from 200 to 5000,
- wherein the ethylene-vinyl alcohol copolymer has a saponification degree in a range of from 80 to 99.7 mol %, and
- wherein of the ethylene units in the ethylene-vinyl alcohol copolymer have a block character in a range of from 0.90 to 0.99.
1 more element
Dependencies are inferred from the claim text.