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:
May. 21, 1996
Filed:
Jun. 05, 1995
John R Blackborow, Edinburgh, GB;
BP Chemicals Limited, London, GB;
Abstract
This invention relates to a process for making substituted acylating agents by the reaction of an enophile containing at least one carboxyl group with a polyolefin selected from polypropylene and poly(iso)butene. To the reaction mixture is added an at least (a)one olefin of the formula (R)(R.sup.1).C.dbd.C.(R.sup.2)(R.sup.3) wherein at least one of R, R.sup.1, R.sup.2 and R.sup.3 is hydrogen and at least one of the other three is (i) an alkyl group having at least 3 carbon atoms or (ii) at least one of R.sup.2 and R.sup.3 together with R.sup.1 forms a cycloaliphatic ring such that the olefin has at least 5 carbon atoms in a linear hydrocarbyl chain, or, (b) one adduct of said olefin of formula (I) with the reactant enophile. The products of the reaction have a substantially reduced amount of resin.