METHOD FOR PREPARING GELS

Application 1312/CHENP/2004 published 2007-03-30, filed 2004-06-14
The formation of a cream and gel is described using a biopolymer, such as a polyhydroxyalkanoate (PHA), a polylactide (PLA), a polylactideglycolide (PLGA) and a polyglycoside (PGA), or a derivative thereof, in a latex form with the addition of a binder, which is generally an amphiphilic chemical entity. An hydrophobic domain of the amphiphilic chemical entity interacts with at least one biopolymer forming a water soluble complex, while the hydrophilic domain of the amphiphilic chemical entity maintains the soluble complex in suspension in an aqueous solution, which after proper heating becomes a gel or a cream. As a result, a versatile gel or cream is created with different compositions and textures that are obtained based on the nature of the binder used and the ratio of biopolymers and binder(s).

Applicant

1)BIOMATERA INC.
:6100 Royalmount Avenue Montréal, Québec H4P 2R2 Canada

Inventor

1)MASARO, Laurent 2)LAPOINTE, Patrick 3)GAYET, Jean-Charles Jacques No of Pages : 24 No of Claims : 16

International Info

Classification: C08L 67/04
Publication Number: WO/2003/042300
Application Date: 2002-11-14

Priority Information

60/331 U.S.A. 2001-11-15