ORGANIC SYSTEM FOR THE RING-OPENING POLYMERIZATION OF CYCLIC CARBONATES IN ORDER TO OBTAIN (BIO)-POLYCARBONATES
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 3, 2012
app pub date -
Mar 31, 2010
filing date -
Mar 31, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An organocatalytic system, having a sulfonic acid as catalyst, for the polymerization of carbonates, and a polymerization process employing said system to obtain bio-polycarbonates devoid of ether units inserted by decarboxylation. The catalyst system for the ring-opening polymerization reaction of cyclic carbonates is formed of an initiator and, as catalyst, of a sulfonic acid of formula R′—SO3H, where R′ denotes either:
- a linear alkyl group including from 1 to 20 carbon atoms or a branched or cyclic alkyl group including from 3 to 20 carbon atoms, ora an aryl group.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully