US 12,460,047 B2
Silane modified polyester composition
Maiju Hietala, Oulu (FI); Rauna-Leena Kuvaja, Oulu (FI); and Jarkko Leivo, Oulu (FI)
Assigned to Brightplus Oy, Oulu (FI)
Appl. No. 18/038,048
Filed by Brightplus Oy, Oulu (FI)
PCT Filed Nov. 26, 2021, PCT No. PCT/FI2021/050818
§ 371(c)(1), (2) Date May 22, 2023,
PCT Pub. No. WO2022/112660, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 20397514 (EP), filed on Nov. 27, 2020; and application No. 20206213 (FI), filed on Nov. 27, 2020.
Prior Publication US 2023/0407000 A1, Dec. 21, 2023
Int. Cl. C08G 63/08 (2006.01); B29C 48/00 (2019.01); B29C 48/40 (2019.01); B29K 67/00 (2006.01); B29K 83/00 (2006.01); B29L 31/00 (2006.01); C08G 77/18 (2006.01)
CPC C08G 63/08 (2013.01) [B29C 48/022 (2019.02); B29C 48/40 (2019.02); C08G 77/18 (2013.01); B29K 2067/046 (2013.01); B29K 2083/00 (2013.01); B29K 2995/0059 (2013.01); B29L 2031/712 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for forming a biobased-silane modified polyester composition, comprising the steps of:
providing a polyester blend comprising at least one biobased polyester,
providing a polysiloxane mixture,-mixing the polyester blend and the polysiloxane mixture, and
reacting the polyester blend and the polysiloxane mixture through reactive extrusion in
a melt compounding process
wherein the polysiloxane mixture is prepared by pre-treating a silane mixture by hydrolyzation and condensation polymerization of the corresponding monomers, wherein the silane mixture is hydrolyzed with an aqueous acid solution, wherein the acid is an organic acid selected from oxalic acid, malonic acid, succinic acid, biosuccinic acid, DL-malic acid, fumaric acid, maleic acid, citraconic acid, itaconic acid, L-(+)-tartaric acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, levulinic acid, malic acid, sebasic acid, lactic acid, 3-hydroxypropionic acid, 2,5-furan dicarboxylic acid, glutamic acid, glucaric acid, and aspartic acid, such that at least 50 mol % of the organic acid is difunctional.