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:
Nov. 27, 2001
Filed:
Jan. 05, 2000
Applicant:
Inventor:
George R. Sanderson, Carlsbad, CA (US);
Assignee:
ISP Investments Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 3/00 ; C01B 3/116 ;
U.S. Cl.
CPC ...
C09K 3/00 ; C01B 3/116 ;
Abstract
The present invention is directed towards compositions which contain a crosslinked absorbent polymer and a water soluble low molecular weight compound. The water soluble low molecular weight compound reduces the rate at which water evaporates from the crosslinked absorbent polymer. The crosslinked absorbent polymers of this invention have a water retention value greater than or equal to about 6. This invention also is directed towards methods for preparing the compositions of this invention.