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. 21, 1990
Filed:
Aug. 29, 1988
Applicant:
Inventor:
Denis F Hochstrasser, Geneva, CH;
Assignee:
Bio-Rad Laboratories, Inc., Hercules, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
524728 ; 524808 ; 524809 ; 524813 ; 524555 ; 525279 ; 525281 ; 525296 ; 526259 ;
Abstract
Polyacrylamide gels containing chaotropic agents such as urea as solubilizing agents for protein or nucleic acid separations are rendered stable for prolonged periods of time by the use of certain diacrylyl compounds with tertiary amide groups as cross linking agents. These compounds have the general structure ##STR1## where the R groups are generally saturated hydrocarbon groups and R.sup.4 through R.sup.9 may also be hydrogen. When used as cross linkers, these compounds have the further advantage of preventing urea crystallization at lowered temperatures.