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:
Jul. 19, 1994
Filed:
Nov. 06, 1992
Applicant:
Inventors:
Alain Huc, Ste. Foy les Lyons, FR;
Rene Gimeno, Pelussin, FR;
Assignee:
Coletica, Lyons, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; A61L / ; A61K / ;
U.S. Cl.
CPC ...
530356 ; 43524025 ; 43524026 ; 435174 ; 435176 ;
Abstract
A process of preparation of collagen containing in major proportion insoluble collagen is disclosed, including rinsing and washing the collagenic tissue, acidifying the ground material pH value 1 to 4 to get a collagenic paste which is diluted in a diluting solution to get the collagen gel having a concentration in collagen lower than about 2.5 by weight expressed in dry collagen, and performing a shearing stirring at high speed producing ultrasonic effect to get a substantially homogeneous collagenic gel. The collagen has improved mechanical resistance and thermal stability.