EP 3755736 A1 20201230 - THERMOPLASTIC POLYESTER HAVING IMPROVED RESISTANCE TO THE PHENOMENON OF CRACKING
Title (en)
THERMOPLASTIC POLYESTER HAVING IMPROVED RESISTANCE TO THE PHENOMENON OF CRACKING
Title (de)
THERMOPLASTISCHER POLYESTER MIT VERBESSERTER BESTÄNDIGKEIT GEGEN RISSBILDUNG
Title (fr)
POLYESTER THERMOPLASTIQUE PRÉSENTANT UNE RÉSISTANCE AMÉLIORÉE AU PHÉNOMÈNE DE FISSURATION
Publication
Application
Priority
- FR 1851391 A 20180219
- FR 2019050371 W 20190219
Abstract (en)
[origin: WO2019158885A1] The invention relates to the field of polymers, particularly a thermolastic polyester having an improved resistance to the cracking phenomenon, to the production method thereof, and to the use of same for producing plastic items. The thermoplastic polyester comprises at least one 1,4 : 3,6-dianhydrohexitol motif (A), at least one diol motif (B), other than the 1,4 : 3,6-dianhydrohexitol motif (A), at least one aromatic dicarboxylic acid motif (C) and at least one branching agent, and has a reduced viscosity in solution of a minimum of 0.75 dL/g and a maximum of 1.5 dL/g. Said thermoplastic polyester is advantageous in that it is particularly resistant to the phenomonon of cracking and also has improved esterification and polycondensation times during the production method thereof.
IPC 8 full level
C08G 63/672 (2006.01)
CPC (source: EP KR US)
C08G 63/181 (2013.01 - KR); C08G 63/199 (2013.01 - KR); C08G 63/672 (2013.01 - EP KR US); C08G 63/80 (2013.01 - KR)
Citation (search report)
See references of WO 2019158885A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019158885 A1 20190822; CN 111712527 A 20200925; EP 3755736 A1 20201230; FR 3078069 A1 20190823; FR 3078069 B1 20200904; JP 2021514021 A 20210603; JP 7304356 B2 20230706; KR 20200123104 A 20201028; US 2021070930 A1 20210311
DOCDB simple family (application)
FR 2019050371 W 20190219; CN 201980012879 A 20190219; EP 19711963 A 20190219; FR 1851391 A 20180219; JP 2020543867 A 20190219; KR 20207022666 A 20190219; US 201916971073 A 20190219