Lactone modified, esterified dispersant additives useful in oleaginous compositions
First Claim
1. A poly (C5 -C9 lactone) adduct material useful as an oil additive and formed by reacting at a temperature of from about 50°
- to about 200°
C. a C5 -C9 lactone (I) with the reaction product (II) of a hydrocarbyl substituted C4 -C10 dicarboxylic acid producing material and a polyol selected from the group consisting of aliphatic polyhydric alcohols containing up to about 100 carbon atoms and about 2 to about 15 hydroxyl groups and 2,2-disubstituted-2-amino-1-alkanols having from two to three hydroxyl groups and containing a total of 4 to 8 carbons atoms, said reaction product (II) being prepared at a temperature of from about 100°
to about 250°
C. over a period of from about 1 to about 10 hours, said hydrocarbyl substituted acid producing material being formed by reacting an olefin polymer of a C2 -C10 monoolefin having a number average molecular weight of about 300 to about 10,000 and a C4 -C10 monounsaturated dicarboxylic acid material selected from the group consisting of acids, esters and anhydrides, wherein there are an average of from about 0.7 to about 2.0 moles of dicarboxylic acid producing material per mole of said olefin polymer used in the reaction, and said poly (C5 -C9 lactone) adduct containing the unit ##STR11## wherein m has an average value of from about 0.2 to about 100 and x is a whole number from 4 to 8.
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Accused Products
Abstract
Poly(C5 -C9 lactone) adducts are made by reacting a C5 -C9 lactone with a post reacted hydrocarbyl substituted C4 -C10 monounsaturated dicarboxylic acid producing material, e.g., a polyisobutenyl succinic anhydride, which, in turn, preferably was made by reacting a polymer of a C2 to C10 monoolefin, preferably polyisobutylene, having a number average molecular weight of about 700 to 5,000, with a C4 to C10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 0.7 to 2.0 dicarboxylic acid producing moieties per molecular of said olefin polymer used in the reaction mixture, and then, post reacting the substituted acid, anhydride or ester with a polyol such as pentaerythritol or THAM. The resulting adducts are useful per se as oil soluble dispersant additives useful in fuel and lubricating compositions including concentrates containing the additives.
93 Citations
44 Claims
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1. A poly (C5 -C9 lactone) adduct material useful as an oil additive and formed by reacting at a temperature of from about 50°
- to about 200°
C. a C5 -C9 lactone (I) with the reaction product (II) of a hydrocarbyl substituted C4 -C10 dicarboxylic acid producing material and a polyol selected from the group consisting of aliphatic polyhydric alcohols containing up to about 100 carbon atoms and about 2 to about 15 hydroxyl groups and 2,2-disubstituted-2-amino-1-alkanols having from two to three hydroxyl groups and containing a total of 4 to 8 carbons atoms, said reaction product (II) being prepared at a temperature of from about 100°
to about 250°
C. over a period of from about 1 to about 10 hours, said hydrocarbyl substituted acid producing material being formed by reacting an olefin polymer of a C2 -C10 monoolefin having a number average molecular weight of about 300 to about 10,000 and a C4 -C10 monounsaturated dicarboxylic acid material selected from the group consisting of acids, esters and anhydrides, wherein there are an average of from about 0.7 to about 2.0 moles of dicarboxylic acid producing material per mole of said olefin polymer used in the reaction, and said poly (C5 -C9 lactone) adduct containing the unit ##STR11## wherein m has an average value of from about 0.2 to about 100 and x is a whole number from 4 to 8. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- to about 200°
-
27. An oil soluble dispersant useful as an oil additive, comprising the product of a reaction mixture comprising as reactants:
-
(I) the reaction product of (a) a hydrocarbyl substituted C4 -C10 monounsaturated dicarboxylic acid producing material formed by reacting olefin polymer of C2 -C10 monoolefin having a number average molecular weight of about 300 to 10,000 and a C4 -C10 monounsaturated acid material selected from the group consisting of acids, esters and anhydrides, wherein there are from about 0.7 to about 2.0 molar equivalents of dicarboxylic acid producing moieties per molar equivalent of said olefin polymer in the reaction mixture, and (b) a polyol having up to about 100 carbon atoms and from about 2 to about 15 hydroxyl groups; and (II) a C5 -C9 lactone, wherein there are, on the average, from about 0.2 to about 100 molar equivalents of C5 -C9 lactone derived moieties per molar equivalent of said reaction product (I) used in the reaction, said reaction product (I) having been prepared by heating together reactants (a) and (b) at a temperature of from about 100°
to about 250°
C. for a period of from about 1 to about 10 hours, and said dispersant having been prepared by heating together reactants (I) and (II) at a temperature of from about 50°
to about 200°
C. for a period of time sufficient to effect ring opening polymerization of said C5 -C9 lactone. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
-
-
37. An oil soluble reaction product useful as an oil additive, comprising.
(a) a polymer consisting essentially of C2 to C10 monoolefin, said polymer being of 300 to 10,000 number average molecular weight and being substituted with succinic moieties selected from the group consisting of acid, anhydride and ester groups, wherein there are from about 0.7 to about 2.0 molar proportions of said succinic moieties per molar proportion of said polymer, (b) a polyol selected from the group consisting of aliphatic polyhydric alcohols containing from about 2 to about 20 carbon atoms and from 2 to about 15 hydroxyl groups and 2,2-disubstituted-2-amino-1-alkanol of the formula ##STR14## wherein X is an alkyl or hydroxyalkyl group with the alkyl groups having from 1 to 3 carbon atoms, wherein at least one of the X substituents is a hydroxyalkyl group of the formula--(CH2)n OH, and wherein n is 1 to 3 and containing 2 to 60 carbon atoms and 2 to 12 nitrogen groups, and (c) a C5 -C9 lactone, wherein (a) is first reacted with (b) at a temperature of from about 100° - to about 250°
C. for a period of from about 1 to about 10 hours to form an intermediate reaction product which is then reacted with (c) at a temperature of from about 50°
to about 200°
C. for a period sufficient to effect ring opening polymerization of (c), and wherein there are an average of from about 0.2 to about 100 molar proportions of (c) per molar proportion of said oil soluble reaction product. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44)
- to about 250°
Specification