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US 2022/0023840 A1Published application
Metal-supported catalyst and method for producing hydrogenated conjugated-diene-based polymer
AssigneeZeon Corporation
InventorsYoshiki FUJIMURA, Akito NAKAI, Kenichiro SUMIURA
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Abstract
A metal-supported catalyst is obtained by supporting a metal and/or a metal compound on a carrier, wherein a rate of decrease in the metal and/or the metal compound contained in the metal-supported catalyst is 20 wt % or more when the metal-supported catalyst is shaken in an aqueous solution of 2.3 wt % of polyvinylpyrrolidone in a hydrogen atmosphere at a temperature of 50° C. at 36 rpm for 1 hour.
Claims5
A method for production of a metal-supported catalyst, wherein the metal-supported catalyst is formed by supporting a metal and/or a metal compound on a carrier,
- a rate of decrease in the metal and/or the metal compound contained in the metal-supported catalyst is 20 wt % or more when the metal-supported catalyst is shaken in an aqueous solution of 2.3 wt % of polyvinylpyrrolidone in a hydrogen atmosphere at a temperature of 50° C. at 36 rpm for 1 hour, and
- the method comprises:
- supporting a metal and/or a metal compound on a carrier to obtain an uncrushed metal-supported material;
- and
- crushing the uncrushed metal-supported material.
2 more elements
Dependencies are inferred from the claim text.