EP 3986850 A1 20220427 - DEPOLYMERIZATION OF A POLY(CARBONATE) AND ISOLATION OF BISPHENOL A FROM A DEPOLYMERIZED POLY(CARBONATE)
Title (en)
DEPOLYMERIZATION OF A POLY(CARBONATE) AND ISOLATION OF BISPHENOL A FROM A DEPOLYMERIZED POLY(CARBONATE)
Title (de)
DEPOLYMERISIERUNG EINES POLY(CARBONATS) UND ISOLIERUNG VON BISPHENOL A AUS EINEM DEPOLYMERISIERTEN POLY(CARBONAT)
Title (fr)
DÉPOLYMÉRISATION D'UN POLY(CARBONATE) ET ISOLEMENT DE BISPHÉNOL A À PARTIR D'UN POLY(CARBONATE) DÉPOLYMÉRISÉ
Publication
Application
Priority
- US 201962863355 P 20190619
- US 2020038069 W 20200617
Abstract (en)
[origin: WO2020257237A1] A process for depolymerization of poly(carbonate) includes combining a poly(carbonate) including repeating units derived from bisphenol A; bisphenol A; water; and a base under conditions effective to depolymerize the poly (carbonate). A purified bisphenol A can be obtained from the depolymerization process. The purified bisphenol A can be particularly useful for the production of bisphenol A-containing thermoplastic polymers.
IPC 8 full level
C07C 37/52 (2006.01); C07C 39/16 (2006.01); C08J 11/16 (2006.01)
CPC (source: CN EP)
C07C 37/00 (2013.01 - CN); C07C 37/0555 (2013.01 - EP); C07C 37/84 (2013.01 - CN); C08G 73/1007 (2013.01 - CN); C08J 11/14 (2013.01 - EP); C08J 11/24 (2013.01 - EP); C08J 2369/00 (2013.01 - EP); Y02W 30/62 (2015.05 - EP)
Citation (search report)
See references of WO 2020257237A1
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 2020257237 A1 20201224; CN 113993831 A 20220128; EP 3986850 A1 20220427
DOCDB simple family (application)
US 2020038069 W 20200617; CN 202080044318 A 20200617; EP 20735824 A 20200617