The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1992
Filed:
Apr. 26, 1990
Nippon Gohsei Kagaku Kabushiki, Osaka, JP;
Abstract
A process for preparing particles of a high water-absorbent resin which comprises mixing a powder of a high water-absorbent resin with a solution of a sorbitan surfactant having an HLB of 2.1 to 5.0 dissolved in an organic solvent, volatilizing the organic solvent from the mixture to give a resin powder with a content of the organic solvent of not more than 5% by weight, adding water to the mixture to adjust a water content in the resin powder to 25 to 60% by weight, adding an inorganic powder to the resin powder, and drying the resulting mixture. The particles of the high water-absorbent resin obtained according to the present invention are suitable for use of sanitary goods, water-retaining agents or soil conditioner in the fields of agriculture and horgiculture and other various uses.