A composite material comprising a plurality of polymer chains fixed to a base and swelled with a mixture which contains a salt and a hydrogen bond-donating compound and has a melting point maintained at 100° C. or less.

A composite material comprising a plurality of polymer chains fixed to a base and swelled with a mixture which contains a salt and a hydrogen bond-donating compound and has a melting point maintained at 100° C. or less.

A silicone grease composition is disclosed. The grease composition contains a silicone oil and zinc dialkyldithiocarbamate as an extreme-pressure additive. The grease composition contains substantially no zinc dialkyldithiophosphate. The grease composition achieves high friction characteristics and wear characteristics. A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed. Moreover, a method for producing a clutch or a torque limiter mechanism is disclosed. The methods utilize the aforementioned grease composition.

A silicone grease composition is disclosed. The grease composition contains a silicone oil and zinc dialkyldithiocarbamate as an extreme-pressure additive. The grease composition contains substantially no zinc dialkyldithiophosphate. The grease composition achieves high friction characteristics and wear characteristics. A method for transmitting torque of a clutch or a torque limiter mechanism is also disclosed. Moreover, a method for producing a clutch or a torque limiter mechanism is disclosed. The methods utilize the aforementioned grease composition.

A heating device includes a rotating body, a heating source, a rotating body holder, and a lubricant of liquid or semi-solid. The heating source heats the rotating body. The rotating body holder holds both longitudinal ends of the rotating body rotatably. The lubricant of liquid or semi-solid adheres to the rotating body holder. A temperature of the rotating body holder is lower than a generation temperature of fine particles of the lubricant.

A heating device includes a rotating body, a heating source, a rotating body holder, and a lubricant of liquid or semi-solid. The heating source heats the rotating body. The rotating body holder holds both longitudinal ends of the rotating body rotatably. The lubricant of liquid or semi-solid adheres to the rotating body holder. A temperature of the rotating body holder is lower than a generation temperature of fine particles of the lubricant.

Aspects described herein generally relate to methods of making a phosphono paraffin comprising forming a reaction mixture by mixing a haloparaffin, a phosphite, and sodium iodide. Methods comprise heating the reaction mixture to form the phosphono paraffin. Aspects described herein further relate to a phosphono paraffin represented by formula (I): ##STR00001##
wherein each instance of R.sup.1 is independently —H or ##STR00002##
wherein each instance of R.sup.2 and R.sup.3 is independently linear or branched C.sub.1-20 alkyl, C.sub.1-20 cycloalkyl, or aryl; the number of instances where R.sup.1 is ##STR00003##
of formula (I) is between about 2 and about 8; and n is an integer between 4 and 22.

Aspects described herein generally relate to methods of making a phosphono paraffin comprising forming a reaction mixture by mixing a haloparaffin, a phosphite, and sodium iodide. Methods comprise heating the reaction mixture to form the phosphono paraffin. Aspects described herein further relate to a phosphono paraffin represented by formula (I): ##STR00001##
wherein each instance of R.sup.1 is independently —H or ##STR00002##
wherein each instance of R.sup.2 and R.sup.3 is independently linear or branched C.sub.1-20 alkyl, C.sub.1-20 cycloalkyl, or aryl; the number of instances where R.sup.1 is ##STR00003##
of formula (I) is between about 2 and about 8; and n is an integer between 4 and 22.

Provided is a thermally conductive silicone grease composition that comprises: (A) an organopolysiloxane having a specific kinematic viscosity; (B) an organopolysiloxane having a specific kinematic viscosity; (C) a spherical aluminum oxide powder which has a specific average sphericity, a specific number of surface hydroxyl groups, and a specific average particle size, and for which the proportion of coarse particles in a laser diffraction type particle size distribution of 25 to 45 μm is within a specific range; and (D) a spherical and/or amorphous zinc oxide powder which has a specific average particle size, and for which the proportion of coarse particles in a laser diffraction type particle size distribution of 25 to 45 μm is within a specific range. The composition has a thermal conductivity measured by the hot disk method conforming to ISO 22007-2 of 2 W/m.Math.K or more and less than 5.5 W/m.Math.K, has a coefficient of viscosity measured by a spiral viscometer at a rotation frequency of 10 rpm of 5 to 800 Pa.Math.s, has insulation properties and high thermal conductivity, and has excellent flowability, workability, and heat dissipation properties.

Provided is a thermally conductive silicone grease composition that comprises: (A) an organopolysiloxane having a specific kinematic viscosity; (B) an organopolysiloxane having a specific kinematic viscosity; (C) a spherical aluminum oxide powder which has a specific average sphericity, a specific number of surface hydroxyl groups, and a specific average particle size, and for which the proportion of coarse particles in a laser diffraction type particle size distribution of 25 to 45 μm is within a specific range; and (D) a spherical and/or amorphous zinc oxide powder which has a specific average particle size, and for which the proportion of coarse particles in a laser diffraction type particle size distribution of 25 to 45 μm is within a specific range. The composition has a thermal conductivity measured by the hot disk method conforming to ISO 22007-2 of 2 W/m.Math.K or more and less than 5.5 W/m.Math.K, has a coefficient of viscosity measured by a spiral viscometer at a rotation frequency of 10 rpm of 5 to 800 Pa.Math.s, has insulation properties and high thermal conductivity, and has excellent flowability, workability, and heat dissipation properties.