EP 3551607 A4 20200212 - BIBENZOATE COPOLYESTERS AND METHODS TO PRODUCE THEM
Title (en)
BIBENZOATE COPOLYESTERS AND METHODS TO PRODUCE THEM
Title (de)
BISBENZOAT-COPOLYESTER UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
COPOLYESTERS DE BIBENZOATE ET LEURS PROCÉDÉS DE PRODUCTION
Publication
Application
Priority
US 2016056124 W 20161007
Abstract (en)
[origin: WO2018067181A1] Bibenzoate copolyesters are based on (4,4'-biphenyl dicarboxylic acid-co-3,4'-biphenyl dicarboxylic acid) as the diacid component, and on an alicyclic diol compound such as 1,4-cyclohexanedimethanol as a portion of the diol component. Copolyesters are based on 4,4'-biphenyl dicarboxylic acid, and/or 3,4'-biphenyl dicarboxylic acid as the diacid component, and may include a multifunctional acid. Copolymers may optionally have an essentially amorphous morphology, high glass transition temperature, high elongation at break, and/or high melting temperature. A method to make the copolyesters controls the characteristics of the copolyester selected from one or a combination of amorphous morphology or degree of crystallinity, Tg, Tm, tensile modulus, flexural modulus, elongation at break, and so on, by selecting the proportions of the 4,4'-biphenyl dicarboxylic acid or ester producing equivalent thereof, 3,4'-biphenyl dicarboxylic acid or ester producing equivalent thereof, and/or the proportion of the 1,4-cyclohexanedimethanol in the diol component.
IPC 8 full level
C08G 63/185 (2006.01); C08G 63/199 (2006.01)
CPC (source: EP)
C08G 63/185 (2013.01); C08G 63/199 (2013.01); C08L 101/00 (2013.01); C08G 65/332 (2013.01)
Citation (search report)
- [Y] US 5138022 A 19920811 - MANG MICHAEL N [US], et al
- [A] US 4914179 A 19900403 - MORRIS JOHN C [US], et al
- [Y] TINGTING CHEN ET AL: "Poly(ethylene glycol-co-1,4-cyclohexanedimethanol terephthalate) random copolymers: effect of copolymer composition and microstructure on the thermal properties and crystallization behavior", RSC ADVANCES, vol. 5, no. 74, 1 January 2015 (2015-01-01), pages 60570 - 60580, XP055648197, DOI: 10.1039/C5RA09252C
- See references of WO 2018067181A1
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
DOCDB simple family (publication)
WO 2018067181 A1 20180412; EP 3551607 A1 20191016; EP 3551607 A4 20200212
DOCDB simple family (application)
US 2016056124 W 20161007; EP 16918454 A 20161007