Substituted acylating agents

Details Substituted acylating agents Substituted acylating agents

1995-06-05

1996-05-21

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525301, C08F 800

Patent

active

055190928

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.

REFERENCES:
patent: 542757 (1995-07-01), Mishra et al.
patent: 5137978 (1992-08-01), Degonia et al.
patent: 5286799 (1994-02-01), Harrison et al.
patent: 5319030 (1994-02-01), Harrison et al.
patent: 5454964 (1995-10-01), Blackborow

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