US 11,732,087 B2
Biomass-resource-derived polyester and production process thereof
Takayuki Aoshima, Yokkaichi (JP); Yasuaki Miki, Yokohama (JP); Katsuhisa Kumazawa, Yokkaichi (JP); Satoshi Katou, Yokohama (JP); Tadashi Uyeda, Yokkaichi (JP); Toyomasa Hoshino, Yokkaichi (JP); Noboru Shintani, Yokohama (JP); Kenji Yamagishi, Yokohama (JP); and Atsushi Isotani, Yokkaichi (JP)
Assigned to Mitsubishi Chemical Corporation, Tokyo (JP)
Filed by Mitsubishi Chemical Corporation, Tokyo (JP)
Filed on Jun. 16, 2022, as Appl. No. 17/841,898.
Application 17/841,898 is a continuation of application No. 17/085,666, filed on Oct. 30, 2020, granted, now 11,560,449.
Application 17/085,666 is a continuation of application No. 16/290,140, filed on Mar. 1, 2019, granted, now 10,870,727, issued on Dec. 22, 2020.
Application 16/290,140 is a continuation of application No. 15/693,646, filed on Sep. 1, 2017, granted, now 10,287,393, issued on May 14, 2019.
Application 15/693,646 is a continuation of application No. 13/586,916, filed on Aug. 16, 2012, abandoned.
Application 13/586,916 is a continuation of application No. 13/168,513, filed on Jun. 24, 2011, granted, now 9,080,009, issued on Jul. 14, 2015.
Application 13/168,513 is a continuation of application No. 12/858,046, filed on Aug. 17, 2010, granted, now 8,021,864, issued on Sep. 20, 2011.
Application 12/858,046 is a continuation of application No. 11/912,212, granted, now 7,985,566, issued on Jul. 26, 2011, previously published as PCT/JP2006/308472, filed on Apr. 21, 2006.
Claims priority of application No. 2005-125318 (JP), filed on Apr. 22, 2005; application No. 2005-125319 (JP), filed on Apr. 22, 2005; application No. 2005-125320 (JP), filed on Apr. 22, 2005; application No. 2005-125321 (JP), filed on Apr. 22, 2005; application No. 2005-127757 (JP), filed on Apr. 26, 2005; application No. 2005-127761 (JP), filed on Apr. 26, 2005; application No. 2005-128886 (JP), filed on Apr. 27, 2005; application No. 2005-375353 (JP), filed on Dec. 27, 2005; application No. 2005-375354 (JP), filed on Dec. 27, 2005; and application No. 2005-375355 (JP), filed on Dec. 27, 2005.
Prior Publication US 2023/0124462 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 63/16 (2006.01); C08G 63/20 (2006.01); C08G 63/78 (2006.01); C08L 67/02 (2006.01); C08L 1/00 (2006.01); C08L 3/00 (2006.01); C08L 5/00 (2006.01); C08L 99/00 (2006.01)
CPC C08G 63/16 (2013.01) [C08G 63/20 (2013.01); C08G 63/78 (2013.01); C08L 67/02 (2013.01); C08L 1/00 (2013.01); C08L 3/00 (2013.01); C08L 5/00 (2013.01); C08L 99/00 (2013.01); C08L 2201/06 (2013.01)] 13 Claims
 
1. A biomass-resource-derived polyester, comprising as a main repeating unit thereof a dicarboxylic acid unit and a diol unit, wherein at least one of the dicarboxylic acid and diol used as raw materials of the polyester is obtained from biomass resources, a nitrogen atom content in the polyester except nitrogen atoms contained in covalently bonded functional groups in the molecule of the polyester is 0.01 ppm to 50 ppm, and wherein a metal amount of a polymerization catalyst selected from the group consisting of titanium, zirconium, tin, antimony, cerium, germanium, zinc, cobalt, manganese, iron, aluminum, magnesium, calcium, strontium, sodium and potassium in the polyester, is 5 ppm to 130 ppm.