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:
Aug. 11, 2020
Filed:
Apr. 17, 2018
Applicant:
The Procter & Gamble Company, Cincinnati, OH (US);
Inventors:
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/12 (2006.01); A61L 15/60 (2006.01); B01J 20/30 (2006.01); B01J 20/26 (2006.01); A61L 15/18 (2006.01); A61L 15/24 (2006.01); C08J 3/24 (2006.01); C08K 3/34 (2006.01);
U.S. Cl.
CPC ...
A61L 15/60 (2013.01); A61L 15/18 (2013.01); A61L 15/24 (2013.01); B01J 20/12 (2013.01); B01J 20/26 (2013.01); B01J 20/264 (2013.01); B01J 20/267 (2013.01); B01J 20/3085 (2013.01); C08J 3/245 (2013.01); C08K 3/346 (2013.01); C08J 2333/02 (2013.01);
Abstract
A method for making water-absorbing polymer particles is provided and includes a first aqueous polymerization solution including crosslinkers, polymerizable monomers and/or oligomers and inorganic solid particles, and a second aqueous solution including inorganic solid particles, crosslinkers and either polymerizable monomers and/or oligomers, or crosslinkable polymers. The average closest distance between two neighboring crosslinkers (R) from the first aqueous polymerization solution or from the second aqueous solution for a specific X-load of the water-absorbing polymer particle is calculated via the formula below: