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:
Jan. 14, 1992
Filed:
Aug. 06, 1990
Applicant:
Inventors:
Assignee:
BP Chemicals Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525355 ; 5253244 ; 525362 ; 525367 ; 525368 ; 525369 ;
Abstract
This invention relates to a process for hydrolysing polymeric amides with a hydrolysing agent at elevated temperatures under the influence of ultrasound in a homogeneous reaction medium. The reaction is particularly suited to the production of polyacrylic acid from polyacrylamide.