Patent Number: 6,310,104

Title: Process for producing colloidal borosilicates

Abstract: The invention comprises a borosilicate retention aid composition and a method for improving the production of paper by addition of the borosilicate. The borosilicate may be utilized in conjunction with a high molecular weight synthetic flocculant and/or starch, with or without the addition of a cationic coagulant. The borosilicate material is preferably a colloidal borosilicate. Methods for the preparation of the borosilicate material are disclosed.

Inventors: Keiser; Bruce A. (Naperville, IL), Whitten; James E. (Naperville, IL)

Assignee: Nalco Chemical Company

International Classification: C01B 35/10 (20060101); C01B 35/00 (20060101); D21H 21/10 (20060101); D21H 17/00 (20060101); D21H 17/68 (20060101); C01B 033/20 (); C01B 035/00 ()

Expiration Date: 10/30/2018