Tractions fluids having excellent low temperature properties

A method of making a traction fluid comprising the step of mixing:

• (A) 15 to 99 weight percent of at least one organic oil;
• and
• (B) 1 to 85 weight percent of at least one siloxane composition chosen from;
• (I) 33 to 80 mole percent units of formula (R3SiO1/2), 0.2 to 66.8 mole percent units of formula (RSiO3/2), and 66.8 to 0.2 mole percent units of formula (SiO4/2) having a viscosity of from 1.0 to 50,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (II) 33 to 75 mole percent units of formula (R3SiO1/2) and 67 to 25 mole percent units of formula (RSiO3/2) having a viscosity of from 2.0 to 20,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (III) 33 to 80 mole percent units of formula (R3SiO1/2) and 67 to 20 mole percent units of formula (SiO4/2) having a viscosity of from 1.0 to 70,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• and
• (VI) cyclosiloxanes of formula (R2SiO2/2)a having a viscosity of from 2.0 to 50,000 mPa.s at 40° C., where a is an integer ranging from 3 to 20, each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl.

A traction fluid comprising:

• (A) 15 to 99 weight percent of at least one organic oil other than unsaturated polybutene, unsaturated polyisobutylene, and hydrogenated polyisobutylene;
• and
• (B) 1 to 85 weight percent of at least one siloxane composition chosen from;
• (I) 33 to 80 mole percent units of formula (R3SiO1/2), 0.2 to 66.8 mole percent units of formula (RSiO3/2), and 66.8 to 0.2 mole percent units of formula (SiO4/2) having a viscosity of from 1.0 to 50,000 mpa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (II) 33 to 75 mole percent units of formula (R3SiO1/2) and 67 to 25 mole percent units of formula (RSiO3/2) having a viscosity of from 2.0 to 20,000 mPas at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (III) 33 to 80 mole percent units of formula (R3SiO1/2) and 67 to 20 mole percent units of formula (SiO4/2) having a viscosity of from 1.0 to 70,000 maP.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (IV) 0 to 28 mole percent units of formula (R3SiO/1/2), 37 to 93 mole percent units of formula (R2SiO2/2), and 6 to 56 mole percent units of formula (RSiO3/2) having a viscosity of from 5.0 to 10,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl and provided further that at least one of the R groups which is not methyl is chosen from alkyl groups comprising 7 to 18 carbon atoms and aryl groups comprising 7 to 18 carbon atoms;
• (V) 1 to 100 mole percent units of formula (R3SiO1/2) and 99 to 0 mole percent units of formula (R2SiO2/2) having a viscosity of from 1.0 to 50,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl and provided further that at least one of the R groups which is not methyl is chosen from alkyl groups comprising 7 to 18 carbon atoms and aryl groups comprising 7 to 18 carbon atoms;
• and
• (VI) cyclosiloxanes of formula (R2SiO2/2)a having a viscosity of from 2.0 to 50,000 mPa.s at 40° C., where a is an integer ranging from 3 to 20, each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl.

A method of making a traction fluid comprising the step of mixing:

• (A) 15 to 99 weight percent of at least one organic oil other than unsaturated polybutene, unsaturated polyisobutylene, and hydrogenated polyisobutylene;
• and
• (B) 1 to 85 weight percent of at least one siloxane composition chosen from;
• (I) 33 to 80 mole percent units of formula (R3SiO1/2), 0.2 to 66.8 mole percent units of formula (RSiO3/2), and 66.8 to 0.2 mole percent units of formula (SiO4/2) having a viscosity of from 1.0 to 50,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (II) 33 to 75 mole percent units of formula (R3SiO1/2) and 67 to 25 mole percent units of formula (RSiO3/2) having a viscosity of from 2.0 to 20,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (III) 33 to 80 mole percent units of formula (R3SiO1/2) and 67 to 20 mole percent units of formula (SiO4/2) having a viscosity of from 1.0 to 70,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl;
• (IV) 0 to 28 mole percent units of formula (R3SiO/1/2), 37 to 93 mole percent units of formula (R2SiO2/2), and 6 to 56 mole percent units of formula (RSiO3/2) having a viscosity of from 5.0 to 10,000 rnPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl and provided further that at least one of the R groups which is not methyl is chosen from alkyl groups comprising 7 to 18 carbon atoms and aryl groups comprising 7 to 18 carbon atoms;
• (V) 1 to 100 mole percent units of formula (R3SiO1/2) and 99 to 0 mole percent units of formula (R2SiO2/2) having a viscosity of from 1.0 to 50,000 mPa.s at 40° C., where each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 70 mole percent of R groups are not methyl and provided further that at least one of the R groups which is not methyl is chosen from alkyl groups comprising 7 to 18 carbon atoms and aryl groups comprising 7 to 18 carbon atoms;
• and
• (VI) cyclosiloxanes of formula (R2SiO2/2)a having a viscosity of from 2.0 to 50,000 mPa.s at 40° C., where a is an integer ranging from 3 to 20, each R is independently selected from alkyl groups comprising 1 to 18 carbon atoms and aryl groups comprising 6 to 18 carbon atoms provided from 10 to 7b mole percent of R groups are not methyl.