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:
Aug. 11, 1998
Filed:
May. 22, 1997
Applicant:
Inventors:
John Michael Allen, Kingsport, TN (US);
Alan Kent Wilson, Kingsport, TN (US);
Paul Lee Lucas, Gray, TN (US);
Larry Gerald Curtis, Johnson City, TN (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ; C08L / ;
U.S. Cl.
CPC ...
536 66 ; 536 35 ; 536 37 ; 536 38 ; 536 39 ; 536 40 ; 536 42 ; 536 43 ; 536 44 ; 536 45 ; 1061028 ; 10616301 ;
Abstract
This invention provides certain carboxymethyl cellulose (CMC) esters of higher acids (e.g., CMC acetate propionate, CMC propionate, CMC acetate butyrate, and CMC butyrate). These new ether derivatives of cellulose esters exhibit solubility in a wide range of organic solvents, compatibility with a variety of resins, and ease of dispersion in a water-borne formulation and are useful in coating compositions as binder resins and rheology modifiers.