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:
Jul. 23, 1991
Filed:
Aug. 23, 1990
Applicant:
Inventors:
George M Lein, Chalfont, PA (US);
Robert C Mahar, Pennsburg, PA (US);
Assignee:
Rohm and Haas Company, Phila., PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
106416 ; 106487 ; 106499 ; 106486 ; 2523635 ; 427391 ; 526932 ; 524447 ; 501146 ; 501147 ; 501148 ; 501149 ;
Abstract
A stabilized aqueous suspension of calcined clay and a method for preparing the same are provided. The method involves an aqueous suspension of calcined clay containing at least 10% by weight clay, and at least 0.05% by weight of a high charge density crosslinked or uncrosslinked acid containing alkali-soluble acrylic copolymer.