BIODEGRADABLE POLYESTER RESIN COMPOSITION, NONWOVEN FABRIC AND FILM, AS WELL AS ITS MANUFACTURING METHOD

Japanese Patent JP2021188038

A

To provide a biodegradable polyester resin composition excellent in biodegradability, hydrolysis resistance, life, strength, durabilty, and workability, a biodegradable polyester nonwoven fabric containing the composition and a film, as well as, their manufacturing methods.SOLUTION: The biodegradable polyester resin composition comprises a diol component and a dicarboxylic acid component containing 1,4-butanediol or its derivative, the dicarboxylic acid component comprises a first dicarboxylic acid and a second dicarboxylic acid which is different from the first dicarboxylic acid, the first dicarboxylic acid contains at least one or more kinds selected from the group consisting of terephthalic acid, dimethylterephthalic acid, and derivatives thereof, the second dicarboxylic acid contains at least one or more kinds selected from the group consisting of adipic acid, succinic aid, and derivatives thereof, a molar ratio of the diol component and the carboxylic acid component is 1 to 2:1, a molar ratio of the first dicarboxylic acid and the second dicarboxylic acid is 0.5 to 2:1, and the degree of the biodegradability is 85% or larger.SELECTED DRAWING: Figure 2

KIM KYUNG YOUN
KIM HYUNG MO
KIM SEONG DONG
KIM HOON

JP2021083240A

December 13, 2021

May 17, 2021

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SKC CO LTD

C08G63/183; C08J5/18; C08K9/06; C08L1/02; C08L67/02; C08L101/16; D04H1/435

JP2015524871A	2015-08-27
JP2014524959A	2014-09-25
JP2017533282A	2017-11-09
JP2011137093A	2011-07-14
JP2013510213A	2013-03-21
JP2012512314A	2012-05-31

WO2009069641A1	2009-06-04
WO2011071156A1	2011-06-16

sk patent corporation
Akihiko Okuno
Hiroyuki Ito

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