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. 20, 1978
Filed:
Feb. 20, 1976
Applicant:
Inventors:
James Teng, St. Louis County, MO (US);
Frank Dai, St. Louis County, MO (US);
Marcella C Stubits, St. Louis, MO (US);
Assignee:
Anheuser-Busch, Incorporated, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 91 ; 536 95 ;
Abstract
This disclosure relates to the production of methyl hydroxypropyl cellulose ethers having a degree of molar substitution (M.S.) of greater than 2. The methyl hydroxypropyl cellulose ethers are prepared at low cost under mild conditions and are particularly useful in gelling organic solvents having a solubility parameter of 8 - 16. They also have compatibility for mixtures of organic solvents and water and are helpful in gelling such solutions when the percentage of water in such mixtures is up to about 60%.