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1. WO1999009082 - PROCESS FOR COPOLYMERIZATION OF FORMALDEHYDE WITH CYCLIC ETHERS IN THE PRESENCE OF ORGANIC NITRO COMPOUNDS

Publication Number WO/1999/009082
Publication Date 25.02.1999
International Application No. PCT/US1998/017050
International Filing Date 18.08.1998
Chapter 2 Demand Filed 12.03.1999
IPC
C08G 2/22 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
2Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
18Copolymerisation of aldehydes or ketones
22with epoxy compounds
C08G 2/24 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
2Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
18Copolymerisation of aldehydes or ketones
24with acetals
CPC
C08G 2/22
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
2Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
18Copolymerisation of aldehydes or ketones
22with epoxy compounds
C08G 2/24
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
2Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
18Copolymerisation of aldehydes or ketones
24with acetals
C08G 4/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
4Condensation polymers of aldehydes or ketones with polyalcohols; Addition polymers of heterocyclic oxygen compounds containing in the ring at least once the grouping —O—C—O—
Applicants
  • E.I. DU PONT DE NEMOURS AND COMPANY [US]/[US]
Inventors
  • BECKERBAUER, Richard
  • ADELMAN, Douglas, John
Agents
  • SIEGELL, Barbara, C.
Priority Data
60/056,18719.08.1997US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR COPOLYMERIZATION OF FORMALDEHYDE WITH CYCLIC ETHERS IN THE PRESENCE OF ORGANIC NITRO COMPOUNDS
(FR) PROCEDE DE COPOLYMERISATION DE FORMALDEHYDE AVEC DES ETHERS CYCLIQUES EN PRESENCE DE COMPOSES NITRES ORGANIQUES
Abstract
(EN) Disclosed is a process for copolymerization of formaldehyde with cyclic ethers in the presence of organic nitro compounds. The process enhances the selectivity for the cyclic copolymer.
(FR) L'invention concerne un procédé assurant la copolymérisation de formaldéhyde avec des éthers cycliques en présence de composés nitrés organiques. Ce procédé permet d'améliorer la sélectivité pour le copolymère cyclique.
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