The present invention is a curable composition comprising a component (A) and a component (B), the curable composition producing a cured product that has a solid-state Si nuclear magnetic resonance spectrum in which a peak is observed within a range from 80 ppm or more to less than 40 ppm, and a half-width of the peak is 500 to 900 Hz, the component (A) being a curable polysilsesquioxane compound that comprises a repeating unit represented by a formula (a-1),

R.sup.1SiO.sub.3/2(a-1) the component (B) being at least one silane coupling agent selected from a group consisting of a silane coupling agent that comprises a nitrogen atom in its molecule, and a silane coupling agent that comprises an acid anhydride structure in its molecule, and a method for producing the curable composition, and a cured product, and a method for using the curable composition, and an optical device.

A colored adhesive tape (1), in particular a yellow, orange-colored, or black adhesive tape (1), preferably a cable wrapping tape, with a temperature class of at least T3 (LV 312), including a textile substrate with a polymer plastic substrate (4, 4a, 4b), on which an adhesive material (5, 5a, 5b) is applied. In order to improve the temperature stability of the tape, while maintaining advantageous properties, the color of at least a part of the substrate (4, 4a, 4b) is formed by the inherent color of the polymer plastic material. The tape is preferably substrate formed of a polymer plastic materials which are aromatic, nitrogen-containing polymers from the group of polyoxadiazoles (POD), polybenzobisoxazoles (PBO) or polybenzimidazoles (PBI) (4, 4a, 4b). The adhesive tape (1) may be used as a cable harness (3).

A colored adhesive tape (1), in particular a yellow, orange-colored, or black adhesive tape (1), preferably a cable wrapping tape, with a temperature class of at least T3 (LV 312), including a textile substrate with a polymer plastic substrate (4, 4a, 4b), on which an adhesive material (5, 5a, 5b) is applied. In order to improve the temperature stability of the tape, while maintaining advantageous properties, the color of at least a part of the substrate (4, 4a, 4b) is formed by the inherent color of the polymer plastic material. The tape is preferably substrate formed of a polymer plastic materials which are aromatic, nitrogen-containing polymers from the group of polyoxadiazoles (POD), polybenzobisoxazoles (PBO) or polybenzimidazoles (PBI) (4, 4a, 4b). The adhesive tape (1) may be used as a cable harness (3).

A new generation elastomeric biopolymer produced by yeast belonging to the family Saccharomycetaceae, and an isolated yeast belonging to the genus Williopsis that produces and secretes the biopolymer.

A new generation elastomeric biopolymer produced by yeast belonging to the family Saccharomycetaceae, and an isolated yeast belonging to the genus Williopsis that produces and secretes the biopolymer.

A pellicle is proposed in which an adhesive layer is formed of an adhesive which undergoes a hardness change at a rate from 50% through +50% of its initial hardness ,measured after curing, when it is let to sit in atmosphere of a temperature of 300 degrees C. for 7 days on end; the rate of hardness change being defined by a following equation:

Rate of hardness change (%)={(hardness after the sitting)(initial hardness before the sitting)}initial hardness before the sitting)100.

A pellicle is proposed in which an adhesive layer is formed of an adhesive which undergoes a hardness change at a rate from 50% through +50% of its initial hardness ,measured after curing, when it is let to sit in atmosphere of a temperature of 300 degrees C. for 7 days on end; the rate of hardness change being defined by a following equation:

Rate of hardness change (%)={(hardness after the sitting)(initial hardness before the sitting)}initial hardness before the sitting)100.

The present application relates to a liquid crystal element and a use of the liquid crystal element. The exemplary liquid crystal element of the present application is, for example, an element capable of realizing a normally transparent mode, having a high contrast ratio, and being driven with a low driving voltage. Such a liquid crystal element may be applied in a variety of light modulators including a smart window, a window protective film, a flexible display element, an active retarder for displaying a 3D image and a viewing angle controlling film.

The present application relates to a liquid crystal element and a use of the liquid crystal element. The exemplary liquid crystal element of the present application is, for example, an element capable of realizing a normally transparent mode, having a high contrast ratio, and being driven with a low driving voltage. Such a liquid crystal element may be applied in a variety of light modulators including a smart window, a window protective film, a flexible display element, an active retarder for displaying a 3D image and a viewing angle controlling film.

The present invention is intended to provide a machine component composed of metal and rubber that results in no increase of material costs for an adhesive or increase of manufacturing costs for metal molding, causes no contamination of the metal mold or generates no foreign matter on the metal mold due to adhesion of the adhesive at the time of molding, causes no failure by separation of the adhesive from a fitting portion at the time of fitting the metal component, and is clean and favorable in appearance. A machine component 1 composed of metal and rubber is formed by applying a thermoset resin adhesive A to a surface of a metal component 2 of a predetermined shape, and vulcanizing and adhering a rubber 3 of a predetermined shape to part of the surface of the metal component 2 by metal molding.