Abstract: A polyimide resin of the present invention contains at least one kind of an alicyclic acid dianhydride as an acid dianhydride component and contains at least one kind of a sulfonyl group-containing diamine as a diamine component. A film containing the polyimide resin of the present invention preferably has a yellowness of 3.0 or less, a tensile elastic modulus of 3.5 GPa or more, a pencil hardness of 4H or more, and a light transmittance of 60% or more at a wavelength of 400 nm. The polyimide resin of the present invention and the film of the present invention preferably have a glass transition temperature of 300° C. or higher.

Abstract: An insulating coating material including a polyimide film, and an adhesion layer on at least one side of a polyimide film. The polyimide film has a weight of 23.5 g or less per 1 m2 and a loop stiffness value of 0.45 g/cm or more.

Abstract: An insulating coating material including an insulating film, and an adhesion layer on at least one side of an insulating film. The insulating film satisfies Formula (1) a=k×b3 . . . Formula (1) where a is a loop stiffness value in g/cm of the insulating film, b is a thickness in ?m of the insulating film, and k is 0.000105 or more.

Abstract: An insulating coating material including an insulating film, and an adhesion layer on at least one side of an insulating film. The insulating film satisfies Formula (1) a=k×b3 . . . Formula (1) where a is a loop stiffness value in g/cm of the insulating film, b is a thickness in ?m of the insulating film, and k is 0.000105 or more.

Abstract: An insulating coating material is provided herein. In some embodiments, the insulating coating material comprises an insulating film comprising a polyimide resin, wherein the insulating film, when measuring a tensile elasticity in accordance with ASTM D882, having a stress at 5% strain of 180 MPa or greater and a stress at 15% strain of 225 MPa or greater, wherein the stress at 15% strain is greater than the stress at 5% strain.

Abstract: A polyimide resin of the present invention contains at least one kind of an alicyclic acid dianhydride as an acid dianhydride component and contains at least one kind of a sulfonyl group-containing diamine as a diamine component. A film containing the polyimide resin of the present invention preferably has a yellowness of 3.0 or less, a tensile elastic modulus of 3.5 GPa or more, a pencil hardness of 4 H or more, and a light transmittance of 60% or more at a wavelength of 400 nm. The polyimide resin of the present invention and the film of the present invention preferably have a glass transition temperature of 300° C. or higher.

Abstract: An insulating coating material including an insulating film, and an adhesion layer on at least one side of an insulating film. The insulating film satisfies Formula (1) a=k×b3 . . . Formula (1) where a is a loop stiffness value in g/cm of the insulating film, b is a thickness in ?m of the insulating film, and k is 0.000105 or more.

Abstract: An insulating coating material including a polyimide film, and an adhesion layer on at least one side of a polyimide film. The polyimide film has a weight of 23.5 g or less per 1 m2 and a loop stiffness value of 0.

Abstract: An insulating coating material is provided herein. In some embodiments, the insulating coating material comprises an insulating film comprising a polyimide resin, wherein the insulating film, when measuring a tensile elasticity in accordance with ASTM D882, having a stress at 5% strain of 180 MPa or greater and a stress at 15% strain of 225 MPa or greater, wherein the stress at 15% strain is greater than the stress at 5% strain.

Abstract: Compositions and methods for polymerization of olefins are disclosed that include a mixture or a reaction product of a group 4 element halide, and a group 13 element halide.

Abstract: An ATM switch includes a multi-destination delivery number counter. The counter stores a multi-destination delivery number of each inputted cell according to destination information in the cell correlating the multi-destination delivery number with an idle address where the cell is stored, on every writing of a cell into an idle address of the shared buffer, and decrements the multi-destination delivery number of the cell on every reading of the cell from the shared buffer. The multi-destination delivery numbers of the cells are utilized for management of switching output of the cells from the shared buffer. The multi-destination delivery number counter detects addressing errors to the shared buffer according to the multi-destination delivery numbers, on every inputting or outputting of the cells. According to the ATM switch, both miniaturization of circuit scale of the ATM switch and improvement of reliability of the ATM switch are made possible.