DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Methods for polymer synthesis

Abstract

The present invention provides methods for reducing induction periods in epoxide-CO2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst.

Inventors:
; ; ;
Issue Date:
Research Org.:
Saudi Aramco Technologies Company, Dhahran (Saudi Arabia)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568422
Patent Number(s):
10308761
Application Number:
15/368,144
Assignee:
Saudi Aramco Technologies Company (Dhahran, SA)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
DOE Contract Number:  
FE0002474
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/02/2016
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Allen, Scott D., Simoneau, Christopher A., Keefe, William D., and Conuel, Jeff R. Methods for polymer synthesis. United States: N. p., 2019. Web.
Allen, Scott D., Simoneau, Christopher A., Keefe, William D., & Conuel, Jeff R. Methods for polymer synthesis. United States.
Allen, Scott D., Simoneau, Christopher A., Keefe, William D., and Conuel, Jeff R. Tue . "Methods for polymer synthesis". United States. https://www.osti.gov/servlets/purl/1568422.
@article{osti_1568422,
title = {Methods for polymer synthesis},
author = {Allen, Scott D. and Simoneau, Christopher A. and Keefe, William D. and Conuel, Jeff R.},
abstractNote = {The present invention provides methods for reducing induction periods in epoxide-CO2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO2 copolymerization catalyst.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 04 00:00:00 EDT 2019},
month = {Tue Jun 04 00:00:00 EDT 2019}
}

Works referenced in this record:

Catalyst for the carbonylation of oxiranes
patent, December 2006


Process for producing polycarbonates and a coordination complex used therefor
patent, April 2012


Method of synthesising polycarbonates in the presence of a bimetallic catalyst and a chain transfer agent
patent-application, September 2014


Trimerization
patent, August 2012


Stereoselective ring opening reactions
patent, July 1999


Polymeric salen compounds and methods thereof
patent, June 2012


Main-group metal-based asymmetric catalysts and applications thereof
patent, January 2005


Methods for polymer synthesis
patent-application, February 2015


Stereoselective ring opening reactions
patent, September 1997


Chiral catalysts and epoxidation reactions
patent, September 1997


Monomers issued from renewable resources and process for polymerising them
patent, June 2013


Catalytic system of nitrate anions for CO2/epoxide copolymerization
patent, December 2013


Methods for polymer synthesis
patent, December 2016


Polycarbonate Polyol Compositions and Methods
patent-application, September 2011


Chiral catalysts and catalytic epoxidation catalyzed thereby
patent, June 1997


Asymmetric cycloaddition reactions
patent, October 2000


Stereoselective alternating copolymerization of epoxide with carbon dioxide
patent-application, October 2010


Kinetic resolution method
patent, October 2003