	US 12,448,482 B2
	Compositions and methods for biodegradable, biomass-based polyesters
John Klier, Leverett, MA (US); Kelsi Marie Skeens Rehmann, Amherst, MA (US); and Lei Zheng, Boston, MA (US)
Assigned to University of Massachusetts, Boston, MA (US)
Filed by UNIVERSITY OF MASSACHUSETTS, Boston, MA (US)
Filed on Jun. 18, 2024, as Appl. No. 18/746,395.
Application 18/746,395 is a continuation of application No. 17/935,252, filed on Sep. 26, 2022, abandoned.
Claims priority of provisional application 63/248,646, filed on Sep. 27, 2021.
Prior Publication US 2024/0336728 A1, Oct. 10, 2024
Int. Cl. C08G 63/183 (2006.01)

CPC C08G 63/183 (2013.01)

9 Claims

1. A biomass-based polyester material comprising:

repeating units derived from a first monomer component, wherein the first monomer component is 1,5-pentanediol (1,5-PDO), wherein 1,5-pentanediol (1,5-PDO) is a biomass-based monomer component, and

repeating units derived from a pair of second monomer components, wherein the pair of second monomer components are adipic acid and terephthalic acid (TPA);

wherein the repeating units derived from the first monomer component are present in an amount of from about 25 mol % to about 75 mol %;

wherein the repeating units derived from the pair of second monomer components are present in an amount of from about 25 mol % to about 75 mol %;

wherein the ratio of the first monomer component to the pair of second monomer components, on a molar basis, is from about 1.5:1 to about 1:1.5; and

wherein the mol % is based on the total of the repeating units derived from the first monomer component and the repeating units derived from the pair of second monomer components.