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US 4,732,721 AGranted
Method for production of shaped bodies of metal salts of polyacrylic acid
AssigneeAgency of Industrial Science and Technology
InventorTetsuo Konno
Life of this patent
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Abstract
A method for production of a shaped body having high mechanical strength, high modulus of elasticity, and good mold-releasing property, the method comprising steps of charging a metal salt of polyacrylic acid in powder form into a shaping mold; and press-forming the powder material into a shaped body under a pressure in a range of from 100 kg/cm.sup.2 to 1,000,000 kg/cm.sup.2.
Claims6
A method for production of a shaped body, which comprises the steps of:
- (a) charging a metal salt of powdered polyacrylic acid into a shaping mold;
- and
- (b) pressure-forming said powder into a shaped body under a pressure in a range of from 1,000 kg/cm.sup.2 to 100,000 kg/cm.sup.2 at a temperature of from 100.degree. C. to 400.degree. C. in a vacuum.
Dependencies are inferred from the claim text.