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. 22, 1976
Filed:
Oct. 07, 1974
Applicant:
Inventor:
Richard B Wuchter, Rydal, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260 65 ; 260 / ; 260 / ; 260 / ; 260 / ; 210 / ;
Abstract
Amphoteric resins are prepared by the Strecker synthesis of crosslinked vinylcarbonyl polymers. The crosslinked vinylcarbonyl polymer such as, for example, polyacrolein is reacted with an amine component such as ammonia and an inorganic cyanide to obtain after hydrolysis resins having good weak base and weak acid exchange capacities. The amphoteric nature and higher capacities make them highly suitable for the removal of sulfur oxides from waste streams.