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US 12,668,660 B2Granted
High strength biodegradable co-polyester resin containing cyclic aliphatic monomer and preparing method of the same
AssigneeResearch & Business Foundation Sungkyunkwan University
InventorsJin Hwan Kim, Soo Jung Kang, Jae Min Jeong
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Abstract
The present disclosure relates to a co-polyester resin of a composition including dicarboxylic acid, wherein the composition includes C2-5 aliphatic diol and isosorbide in an amount of 70 mol to 97.5 mol and 2.5 mol to 30 mol, respectively, based on 100 mol of the dicarboxylic acid, and the dicarboxylic acid includes C2-6 aliphatic dicarboxylic acid and cyclic aromatic dicarboxylic acid.
Claims14
A co-polyester resin comprising dicarboxylic acid,
- wherein the co-polyester resin includes C2-5 aliphatic diol and isosorbide in an amount of 70 mol to 97.5 mol and 2.5 mol to 30 mol, respectively, based on 100 mol of the dicarboxylic acid, and
- the dicarboxylic acid includes C2-6 aliphatic dicarboxylic acid and cyclic aromatic dicarboxylic acid,
- wherein the co-polyester resin comprises a compound represented by formula 1 below:
- (wherein in above formula 1,
- x is 49 to 95, y is 2.5 to 21, and z is 2.5 to 21,
- l is 2.5 to 21, m is 0.05 to 9, and n is 0.05 to 9, and
- a sum of x, y, z, l, m, and n is 100).
4 more elements
A method for preparing a co-polyester resin, the method comprising:
- mixing C2-5 aliphatic diol, isosorbide and dicarboxylic acid to perform an esterification reaction;
- and
- adding a catalyst and a thermal stabilizer to a compound produced in the esterification reaction to perform a condensation reaction,
- wherein the co-polyester resin comprises a compound represented by formula 1 below:
- (wherein in above formula 1, x is 49 to 95, y is 2.5 to 21, and z is 2.5 to 21, l is 2.5 to 21, m is 0.05 to 9, and n is 0.05 to 9, and sum of x, y, z, l, m, and n is 100).
2 more elements
Dependencies are inferred from the claim text.