Pituitous silicone fluid

A personal care composition comprising a pituitous silicone fluid compassing:

• (1) the hydrosilylation reaction product of;
• (a) a first linear organopolysiloxane comprising (R1R2R3SiO1/2) and (R4R5SiO2/2) units, wherein each of R1 to R5 is independently a hydrocarbon group so long as at least one of R1 to R5 is an alkenyl group, said first linear organopolysiloxane comprises less than 1 weight percent of T and Q units, and said first linear organopolysiloxane has a degree of polymerization of from 100 to 15,000, and
• (b) a second linear organopolysiloxane comprising (R6R7R8SiO1/2) and (R9R10SiO2/2) units, wherein each of R6 to R10 is independently is a hydrocarbon group, polyether group, siloxane group, or polyol group, so long as at least one of R6 to R10 is a hydrogen atom, said second linear organopolysiloxane comprises less than 1 weight percent of T and Q units, and said second linear organopolysiloxane has a degree of polymerization of from 4 to 1,000;
• and
• (2) a carrier fluid chosen from a silicone fluid, an organic solvent, an organic oil, and combinations thereof;
• wherein said hydrosilylation reaction product comprises alkenyl or Si—H functionality,
• wherein said hydrosilylation reaction product is present in an amount of from 3 to 30 parts by weight per 100 parts by weight of said pituitous silicone fluid,
• wherein the combination of said hydrosilylation reaction product and said carrier fluid provides said pituitous silicone fluid with a viscosity of from 0.1 to 75 Pa·s,
• wherein said pituitous silicone fluid exhibits an increasing normal stress observed in a perpendicular direction when a constantly increasing shear force is applied,
• wherein said pituitous silicone fluid is a liquid that can flow when a force is applied, and
• wherein fluids do not encompass gels, which do not flow.

A method of forming a pituitous silicone fluid, said method comprising reacting a first linear organopolysiloxane and a second linear organopolysiloxane via a hydrosilylation reaction in the presence of a hydrosilylation catalyst and a carrier fluid to form a hydrosilylation reaction product comprising alkenyl or Si—H functionality;

• wherein the first linear organopolysiloxane comprises (R1R2R3SiO1/2) and (R4R5SiO2/2) units, wherein each of R1 to R5 is independently a hydrocarbon group so long as at least one of R1 to R5 is an alkenyl group, wherein the first linear organopolysiloxane comprises less than 1 weight percent of T and Q units, and wherein the first linear organopolysiloxane has a degree of polymerization of from 100 to 15,000;
• wherein the second linear organopolysiloxane comprises (R6R7R8SiO1/2) and (R9R10SiO2/2) units, wherein each of R6 to R10 is independently is a hydrocarbon group, polyether group, siloxane group, or polyol group, so long as at least one of R6 to R10 is a hydrogen atom, wherein the second linear organopolysiloxane comprises less than 1 weight percent of T and Q units, and wherein the second linear organopolysiloxane has a degree of polymerization of from 4 to 1,000;
• wherein the carrier fluid is chosen from a silicone fluid, an organic solvent, an organic oil, and combinations thereof,
• wherein the hydrosilylation reaction product is present in an amount of from 3 to 30 parts by weight per 100 parts by weight of the pituitous silicone fluid,
• wherein the combination of said hydrosilylation reaction product and said carrier fluid provides said pituitous silicone fluid with a viscosity of from 0.1 to 75 Pa·s,
• wherein the pituitous silicone fluid exhibits an increasing normal stress observed in a perpendicular direction when a constantly increasing shear force is applied,
• wherein said pituitous silicone fluid is a liquid that can flow when a force is applied, and
• wherein fluids do not encompass gels, which do not flow.