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:
Jun. 12, 2007
Filed:
Dec. 30, 2003
Applicants:
Yatao HU, Malvern, PA (US);
Larissa Ding, Audubon, PA (US);
Robert E. Patterson, Radnor, PA (US);
Inventors:
Assignee:
PQ Corporation, Berwyn, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12H 1/048 (2006.01);
U.S. Cl.
CPC ...
Abstract
A silica xerogel, a process for making it, and a process for using it to reduce chill haze in beer includes incorporation in the xerogel of one or more alkali metals, optionally in combination with one or more alkaline earth metals. The pH of the xerogel is between 8.0 and 10.5, preferably between 8.5 and 10.0.