US 11,920,030 B2
Method for producing polyhydroxyalkanoic acid
Asuka Fukumoto, Takasago (JP)
Assigned to KANEKA CORPORATION, Osaka (JP)
Filed by KANEKA CORPORATION, Osaka (JP)
Filed on Aug. 29, 2022, as Appl. No. 17/822,835.
Application 17/822,835 is a continuation of application No. 16/341,613, granted, now 11,459,455, previously published as PCT/JP2017/037060, filed on Oct. 12, 2017.
Claims priority of application No. 2016-201997 (JP), filed on Oct. 13, 2016.
Prior Publication US 2022/0411629 A1, Dec. 29, 2022
Int. Cl. C08L 67/04 (2006.01); C08G 63/06 (2006.01); C08J 3/12 (2006.01)
CPC C08L 67/04 (2013.01) [C08G 63/06 (2013.01); C08J 3/122 (2013.01); C08J 2367/04 (2013.01); C08J 2429/04 (2013.01)] 19 Claims
 
1. An aqueous suspension liquid, comprising:
a polyhydroxyalkanoic acid; and
a polyvinyl alcohol,
wherein the aqueous suspension liquid has a pH of 5 or less;
a concentration of the polyhydroxyalkanoic acid in the aqueous suspension liquid is from 30% by weight to 65% by weight, and
a protein content in the aqueous suspension liquid is 30,000 ppm or less per weight of the polyhydroxyalkanoic acid.