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1. WO2022160026 - COPOLYESTERS OF 2,4-FDCA WITH INCREASED CRYSTALLIZATION CONTROL

Publication Number WO/2022/160026
Publication Date 04.08.2022
International Application No. PCT/BR2022/050022
International Filing Date 27.01.2022
IPC
C08G 63/183 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
02Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds
12derived from polycarboxylic acids and polyhydroxy compounds
16Dicarboxylic acids and dihydroxy compounds
18the acids or hydroxy compounds containing carbocyclic rings
181Acids containing aromatic rings
183Terephthalic acids
C08G 63/80 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
78Preparation processes
80Solid-state polycondensation
Applicants
  • BRASKEM S.A. [BR]/[BR]
Inventors
  • CICARONI FERNANDES, Felipe
  • ESTRADA GOUVEA, Iuri
  • MANO, Bárbara
Agents
  • DANNEMANN, SIEMSEN, BIGLER & IPANEMA MOREIRA
Priority Data
63/143,64829.01.2021US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COPOLYESTERS OF 2,4-FDCA WITH INCREASED CRYSTALLIZATION CONTROL
(FR) CO-POLYESTERS DE 2,4-FDCA À PLUS GRANDE COMMANDE DE CRISTALLISATION
Abstract
(EN) The present disclosure provides a copolyester including a dicarboxylic acid component A comprising a terephthalic acid residue or ester-forming derivative thereof, or a mixture thereof, and a 2,4-furandicarboxylic acid residue or ester-forming derivative thereof, or a mixture thereof, and a diol component B 5 comprising an alkanediol residue having from 2 to 22 carbon atoms, wherein the dicarboxylic acid component A has a total molar content, and wherein the 2,4-furandicarboxylic acid residue or ester-forming derivative thereof, is present in an amount of from 0.1 to 10 mol %, with respect to the total molar content of the dicarboxylic acid component A. Inventive copolyesters have a 0 slower crystallization rate, a higher gas barrier to CO2 and O2 and a higher ratio of 14C to 12C as measured by ASTM D6866 when compared to a comparable copolyester comprising isophthalic acid instead of 2,4-furandicarboxylic acid.
(FR) La présente divulgation concerne un co-polyester qui comprend un constituant acide dicarboxylique A comprenant un résidu acide téréphtalique ou un dérivé formant un ester de ce dernier, ou un mélange de ces derniers, et un résidu acide 2,4-furandicarboxylique ou un dérivé formant un ester de ce dernier, ou un mélange de ces derniers, et un constituant diol B comprenant un résidu alcanediol ayant de 2 à 22 atomes de carbone, le constituant acide dicarboxylique A ayant une teneur molaire totale, et le résidu acide 2,4-furandicarboxylique ou un dérivé formant un ester de ce dernier, étant présent en une quantité de 0,1 à 10 % en moles, par rapport à la teneur molaire totale du constituant acide dicarboxylique A. Les co-polyesters selon l'invention présentent une vitesse de cristallisation plus lente, une barrière aux gaz supérieure envers le CO2 et l'O2 et un rapport plus élevé de 14C sur 12C tel que mesuré selon la norme ASTM D6866, par comparaison avec un co-polyester comparable comprenant de l'acide isophtalique au lieu de l'acide 2,4-furandicarboxylique.
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