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:
Feb. 16, 1993
Filed:
Nov. 14, 1990
Applicant:
Inventors:
Melvin D Sterman, Pittsford, NY (US);
James L Bello, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07K / ; C07K / ; C09D / ; G03C / ;
U.S. Cl.
CPC ...
530354 ; 106125 ; 430539 ; 430640 ; 430642 ; 530355 ; 530408 ;
Abstract
A soluble, chain extended gelatin having a high molecular weight and significantly higher viscosity at equivalent gelatin concentration compared to standard gelatin and significantly faster setting time is produced by preparing an aqueous gelatin composition containing from about 6% to about 18% dry weight of gelatin and from about 0.25 to about 5 millimoles of a bis-(vinyl sulfonyl) compound per 100 grams of gelatin, heating the composition at a temperature of from about 40 to about 60.degree.C. and at a pH of from about 4.5 to about 7 for from about one to about eight hours.