Resin-free succinimides process of making, and compositions containing same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 1, 1997
Issued Date -
N/A
app pub date -
Mar 11, 1996
filing date -
Dec 15, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to novel pure hydrocarbyl succinylating agents, substantially pure derivatives thereof, to a method of preparation of pure substituted succinylating agents and their derivatives, and to the use of thereof as additives for fuels and lubricants. The hydrocarbyl substituted succinylating agents are pure because the real and apparent mole ratios of the succinyl groups to the hydrocarbyl groups in such agents are substantially the same. These are produced by reacting an olefin polymer such as poly(iso)butylene with maleic anhydride to form a hydrocarbyl substitued succinylating agent which is then cleaned by solvent extraction to remove any impurities therein before use in further reactions.
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