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. 08, 1978
Filed:
Mar. 17, 1977
Applicant:
Inventors:
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526204 ; 2604 / ; 2604 / ; 526261 ; 526279 ; 260826 ;
Abstract
Crosslinked polyacrylamides containing silyl groups are disclosed which are prepared in a simple and economical manner by polymerizing silylated acrylic acid amides in the presence of a crosslinking agent such as 1,4-butanediol-diacrylate. The resultant crosslinked silylated polyacrylamides are insoluble in customary solvents and are useful for the transfer of silyl groups to compounds which contain at least one mobile hydrogen atom. They may be employed, e.g., in gas chromatography, mass spectroscopy and chemical syntheses (for instance for the introduction of protective silyl groups).