The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 1996
Filed:
Aug. 30, 1995
Applicant:
Inventor:
John R Blackborow, Edinburgh, GB;
Assignee:
BP Chemicals Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
525275 ; 5253281 ; 526285 ;
Abstract
This invention relates to a process for functionalising synthetic hydrocarbyl polymers having at least one olefinic group by (i) reacting at elevated temperature the synthetic hydrocarbyl polymer with an alkyne compound substituted with at least one electron withdrawing --C(O)R or a --CN group so that the olefinic group in the polymer reacts with the alkyne group of the alkyne compound to form an intermediate and (ii) reacting the intermediate from step (i) above with a nucleophile to form a functionalised hydrocarbyl polymer. The functionalised polymers are useful as additives for lubricating oils and fuels.