08541109 cites 10 patents.

The invention relates to a biodegradable polyester, particularly suitable for extrusion coating, comprising units deriving from at least a diacid and at least a diol, with long chain branches (isometric with respect to the main chains of the polyester) and essentially gel-free, characterized by optimum adhesion to paper, excellent sealability and processability in extrusion coating systems. Said biodegradable polyester is obtainable through a reactive extrusion process starting from a substantially linear polyester precursor with defined viscosity and concentration of reactive sites which allow transformation of a few chains of the polyester precursor into isometric branches of this polyester. A further object of the present invention is a laminate product composed of at least a backing, preferably paper, and of at least a first layer composed of polyester according to the invention.

Title
Biodegradable polyester, preparation process thereof and products comprising said polyester
Application Number
12/934011
Publication Number
8541109 (B2)
Application Date
March 26, 2009
Publication Date
September 24, 2013
Inventor
Angelos Rallis
Novara
IT
Catia Bastioli
Novara
IT
Agent
Novak Druce Connolly Bove Quigg
Assignee
Novamont S p A
IT
IPC
C08L 67/02
C08G 63/183
C08G 63/181
C08G 63/16
C08G 63/127
C08G 63/12
C08G 63/08
C08G 63/02
B32B 27/36
B32B 27/10
B32B 27/08
B32B 27/06
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