Tin-containing organolithium compounds and preparation thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 7, 2004
Issued Date -
N/A
app pub date -
Jun 11, 2002
filing date -
Dec 31, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a tin-containing organolithium compound which can be used as anionic polymerization initiators, represented by the following formula (1): R.sub.4-x Sn(Y.sub.a --Z.sub.m --Y.sub.b --Li).sub.x (1) Wherein R, Z and Y are defined as in the specification; x represents a value of 1 or 2; m represents a value of 0 or 1; a represents a value of 0 to 6, b represents a value of 0 to 6, a+b is from 0 to 6, provided that m=1 when x=1. The tin-containing organolithium compounds according to the present invention can be used as initiators to initiate the polymerization of conjugated dienes and/or monovinyl aromatic hydrocarbons, thereby synthesizing various linear, star or telechelic polymers. The present invention also relates to a method for preparing the tin-containing organolithium compounds according to the present invention.
First Claim
Family
International Classification(s)
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