Abstract: The invention provides a lubricating grease composition with a worked penetration of 400 to 500 for a machine tool equipped with an automatic lubricator, containing a base oil having a kinematic viscosity at 40° C. of 10 to 200 mm2/s and 0.1 to 10 mass % of solid particles insoluble in the base oil. The lubricating grease composition of the invention can be fed using the automatic lubricator attached to the machine tool, and can prevent the stick-slip from occurring on the sliding lubrication portion of the machine tool.

Abstract: The invention provides a lubricating grease composition with a worked penetration of 400 to 500 for a machine tool equipped with an automatic lubricator, containing a base oil having a kinematic viscosity at 40° C. of 10 to 200 mm2/s and 0.1 to 10 mass % of solid particles insoluble in the base oil. The lubricating grease composition of the invention can be fed using the automatic lubricator attached to the machine tool, and can prevent the stick-slip from occurring on the sliding lubrication portion of the machine tool.

Abstract: A composition having a bactericidal action is provided which has no toxicity to the human body, and particularly a composition having a bactericidal action is provided which exhibit an excellent therapeutic effect for skin diseases such as atopic dermatitis, acne or the like. A composition, in which an extract from a silk gland and/or a liquid silk is an active ingredient, has a bactericidal action to make renewal of a skin cell, exhibiting an excellent therapeutic effect for skin diseases.

Abstract: A composition having a bactericidal action is provided which has no toxicity to the human body, and particularly a composition having a bactericidal action is provided which exhibit an excellent therapeutic effect for skin diseases such as atopic dermatitis, acne or the like.

Abstract: A method of producing a pore-free polynorbornene article having thick-walled portions is provided. The method comprises providing a monomer charge containing at least one norbornene monomer having a tricyclic or higher cyclic structure; introducing the monomer charge into a mold at a temperature greater than the inside mold temperature; polymerizing the monomer charge under pressure via a ring-opening catalyst system; cooling the molded article; and removing the molded article from the mold.

Abstract: An organic fluorine compound as a mold release agent wherein at least one norbornene compound is polymerized by ring opening in a mold coated with said release agent. The organic fluorine compound release agent can be used in combination with a conventional mold release agent.

Abstract: In rotary piston engines including apex seals each comprising a main body constituting a substantial part of the seal, an end piece disposed in abutting relationship to an end of the main body through slanted cam surfaces which serve to force the end piece axially outwardly to engage with the inner surface of the side housing when the end piece is resiliently biased radially outwardly by spring means, the method of assembling the apex seals in the rotary piston engine, which comprises providing a projection of consumable material between the main body of each seal and the spring means so as to retain the spring means preventing the end piece from being displaced over the end face of the center housing, the consumable material being of such a type that dissipates under heat produced during engine operation.

Abstract: A rotary piston of a rotary piston internal combustion engine has radially and inner and outer annular seals carried within grooves of the rotary piston thrust surface axially facing the engine casing sidewall with the axial end face of the oil seal tapering radially outwards relative to the engine sidewall and forming lip angles between the tapered end wall of the seal such that the lip angle for the outer seal is between 1.degree. and 3.degree., the lip angle for the inner seal is between 3.degree. and 5.degree., and the spring biasing force acting on the radially outer seal is less than that acting on the radially inner seal. Preferably, an oil removal bore is formed in the land portion between the grooves for return of the oil delivered thereto by action of the oil seal to the oil pan of the engine.