Estolide compositions exhibiting superior high-performance properties

Patent metadata

Field	Value
Publication number	US-2018251702-A1
Application number	US-201715729493-A
Country	US
Kind code	A1
Filing date	Oct 10, 2017
Priority date	Oct 2, 2013
Publication date	Sep 6, 2018
Grant date	—

Abstract

Compounds and compositions, including engine oils and lubricant formulations comprising at least one estolide compound. Exemplary compositions comprise an estolide base oil and an additive package.

First claim

1 - 117 . (canceled)

118 . A composition comprising:
(i) about 25% to about 60% by weight of an estolide base oil having a kinematic viscosity from about 2 to about 9 cSt at 100° C., said estolide base oil comprising at least one estolide compound selected from compounds of Formula I:

wherein
x is, independently for each occurrence, an integer selected from 1 to 10;
y is, independently for each occurrence, an integer selected from 1 to 10;
n is an integer selected from 0, 1, and 2;
R 1 is an unsubstituted C 1 to C 22 alkyl that is saturated and branched or unbranched; and
R 2 is an unsubstituted C 1 to C 22 alkyl that is saturated and branched or unbranched,
wherein x+y is, independently for each fatty acid chain residue, an integer selected from 13 to 15, and wherein each fatty acid chain residue is unsubstituted;

(ii) about 30% to about 65% by weight of a non-estolide base oil selected from at least one of a synthetic hydrocarbon oil or a semi-synthetic hydrocarbon oil;
(iii) at least one metal salt detergent inhibitor; and
(iv) at least one antioxidant,
wherein the composition exhibits a wear rating of 60 μm or less, and a viscosity increase of 150% or less at 40° C., when tested according to ASTM Method 7320,
wherein the estolide base oil has an iodine value of less than 10 cg/g,
and wherein the composition has a bio-based content of at least 25% by weight when tested according to ASTM Method D6866.

119 . The composition according to claim 118 , comprising
30 to 40% by weight of the estolide base oil; 5 to 15% by weight of the at least one metal salt detergent inhibitor; at least 0.1% by weight of the at least one antioxidant; and at least 1% by weight of at least one viscosity modifier; and 40 to 55% by weight of the at least one non-estolide base oil.

120 . The composition according to claim 118 , wherein the bio-based content of at least 25% by weight of the composition is derived from the estolide base oil.

121 . The composition according to claim 118 , wherein the composition exhibits a weighted piston deposit rating of at least 7 when tested according to ASTM Method 7320.

122 . The composition of claim 118 , further comprising at least one viscosity modifier.

123 . The composition of claim 122 , wherein the at least one viscosity modifier comprises at least 1% by weight of the composition.

124 . The composition of claim 123 , wherein the at least one viscosity modifier comprises a styrene-type polymer.

125 . The composition of claim 124 , wherein the at least one viscosity modifier comprises a styrene-diene type polymer.

126 . The composition of claim 124 , wherein the at least one viscosity modifier comprises about 2% to about 5% by weight of the composition.

127 . The composition of claim 118 , wherein the at least one metal salt detergent inhibitor comprises a metal sulfonate.

128 . The composition of claim 127 , wherein the at least one metal salt detergent inhibitor comprises a calcium sulfonate.

129 . The composition of claim 118 , wherein the non-estolide base oil is a semi-synthetic oil.

130 . The composition of claim 129 , wherein the semi-synthetic oil is a Group III base oil.

131 . The composition of claim 118 , wherein the estolide base oil has an iodine value of less than 5 cg/g.

132 . The composition of claim 126 , wherein the estolide base oil comprises about 35% by weight of the composition.

133 . The composition of claim 118 , wherein the composition exhibits a wear rating of 0 to 30 μm or less when tested according to ASTM Method 7320.

134 . The composition of claim 124 , wherein the estolide base oil has a kinematic viscosity from about 4 to about 9 cSt at 100° C.

135 . The composition of claim 134 , wherein the non-estolide base oil comprises a polyalphaolefin.

136 . The composition of claim 134 , wherein the antioxidant comprises about 0.01% to about 3% by weight of the composition.

137 . The composition of claim 136 , wherein the at least one viscosity modifier comprises about 2% to about 5% by weight of the composition.

Assignees

• Biosynthetic Technologies Llc

Inventors

• Bredsguard Jakob

Classifications

• C10N2030/64

  Environmental friendly compositions · CPC title

• C10N2040/25

  Internal-combustion engines · CPC title

• C10N2010/04

  Groups 2 or 12 · CPC title

• C10N2030/02

  Pour-point; Viscosity index · CPC title

• C10N2030/04

  Detergent property or dispersant property · CPC title