US 7,588,632 B2
	Biodegradable flexographic ink
Laurent Masaro, Montreal (Canada); Patrick Lapointe, Montreal-Nord (Canada); and Jean-Charles Jacques Gayet, Montreal (Canada)
Assigned to BioMatera inc., (Canada)
Appl. No. 10/500,856 PCT Filed Jan. 23, 2003, PCT No. PCT/CA03/00088 § 371(c)(1), (2), (4) Date May 24, 2005, PCT Pub. No. WO03/062334, PCT Pub. Date Jul. 31, 2003.
Claims priority of provisional application 60/350347, filed on Jan. 24, 2002.
Prior Publication US 2005/0215662 A1, Sep. 29, 2005
Int. Cl. C09D 11/02 (2006.01)

U.S. Cl. 106—31.58  [106/31.86; 106/31.27; 106/31.6]

12 Claims

1. A flexographic ink comprising polyhydroxyalkanoate (PHA), a binder being a triblock amphiphilic molecule, a solvent and a dye or a pigment in an amount effective to provide a visible mark on a substrate, wherein said PHA is at a concentration between about 20 to 80% (w/v), said binder is at concentration between about 0.5 to 20% (w/v), said solvent is at concentration between about 1 to 25%(v/v), and said dye or pigment is at concentration between about 1 to 40% (w/v).