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. 26, 1983
Filed:
Apr. 10, 1981
Applicant:
Inventors:
William D Emmons, Huntingdon Valley, PA (US);
Travis E Stevens, Ambler, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
5263072 ; 524555 ; 526264 ; 526304 ;
Abstract
Nonionic and anionic water-soluble addition copolymers of acrylamide and N-substituted acrylamides are useful as flow modifiers in and as adsorbates from aqueous systems, particularly multiphase systems. The copolymers have a weight average molecular weight greater than 30,000 and are useful for many purposes including as thickening agents or rheology modifiers for water based systems, block improvement additives in water based coating formulations, and transfer aids in water based ink or roll coater formulations.