Biodegradable aliphatic-aromatic polyester
First Claim
Patent Images
1. Polymeric composition comprisingA) a biodegradable aliphatic/aromatic copolyester (AAPE) comprising:
- a) an acid component comprising repeating units of;
49 to 63 mol % of a polyfunctional aromatic acid;
51 to 37% of an aliphatic acid at least 50% of which is brassylic acid;
b) a diol component;
said AAPE being disintegrated according to the Standard ISO 20200 in 90 days;
and having;
a density of less than or equal to 1.18 g/cc;
a number average molecular weight Mn of 40,000-140,000;
an inherent viscosity of 0.8-1.5; and
B) at least one other polymer selected from other polyesters of the aliphatic/aromatic type or biodegradable polymers of natural origin or of synthetic origin.
0 Assignments
0 Petitions
Accused Products
Abstract
Biodegradable aliphatic/aromatic copolyester comprising: A) an acid component comprising repeating units of: 1) 49 to 63 mol % of an aromatic carboxylic acid; 2) 51 to 37 mol % of an carboxylic acid, at least 50% of which is brassylic acid; B) a diol component; said copolyester being disintegrated according to the Standard ISO 20200 in 90 days.
-
Citations
20 Claims
-
1. Polymeric composition comprising
A) a biodegradable aliphatic/aromatic copolyester (AAPE) comprising: -
a) an acid component comprising repeating units of; 49 to 63 mol % of a polyfunctional aromatic acid; 51 to 37% of an aliphatic acid at least 50% of which is brassylic acid; b) a diol component; said AAPE being disintegrated according to the Standard ISO 20200 in 90 days; and having; a density of less than or equal to 1.18 g/cc; a number average molecular weight Mn of 40,000-140,000; an inherent viscosity of 0.8-1.5; and B) at least one other polymer selected from other polyesters of the aliphatic/aromatic type or biodegradable polymers of natural origin or of synthetic origin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification