Abstract: A balloon has an inflatable portion that forms a tube shape extending in an extending direction in an inflated state, a distal end connecting portion provided to an end portion of the inflatable portion on one side thereof, and a proximal end connecting portion provided to an end portion of the inflatable portion on the other side thereof. At least the inflatable portion includes a plurality of first portions that forms wings in the deflated state and a plurality of second portions that is adjacent to the plurality of first portions in a circumferential direction centered on the center axis. In the process of changing shape from the inflated state to the deflated state, the plurality of second portions moves towards the center axis in advance of the plurality of first portions and thereby forms, in the inflatable portion, indentations recessed toward the center axis.

Abstract: To provide a novel diamine, and a polyimide precursor and a polyimide using it. A diamine represented by the formula (1): wherein each of X1 and X5 which are independent of each other, is a single bond or the like; each of X2 and X4 which are independent of each other, is —CH2— or the like; X3 is a C1-6 alkylene or the like; each of Y1 and Y2 which are independent of each other, is a single bond or the like; R is a C1-20 linear, branched or cyclic hydrocarbon group; and a is 0 or 1).

Abstract: An acrylic or methacrylic compound having N-alkoxyalkyl group; and a method for producing the compound. An acrylic or methacrylic compound having N-alkoxyalkyl group, of Formula [1]: [where R1 is a hydrogen atom or methyl group; R2 is a C2-20 alkylene group etc.; R3 is an r-valent C2-20 aliphatic group etc.; R4 is a C1-20 alkyl group etc.; Z is >NCOO— or —OCON< (where “-” is a bond, “>” and “<” each have two bonds, and any one of “>” and “<” is bonded to —CH2OR4); and r is a natural number of 2 or more and 9 or less].

Abstract: An acrylic or methacrylic compound having N-alkoxyalkyl group; and a method for producing the compound. An acrylic or methacrylic compound having N-alkoxyalkyl group, of Formula [1]: [where R1 is a hydrogen atom or methyl group; R2 is a C2-20 alkylene group etc.; R3 is an r-valent C2-20 aliphatic group etc.; R4 is a C1-20 alkyl group etc.; Z is >NCOO— or —OCON< (where “—” is a bond, “>” and “<” each have two bonds, and any one of “>” and “<” is bonded to —CH2OR4); and r is a natural number of 2 or more and 9 or less].

Abstract: To provide a novel diamine, and a polyimide precursor and a polyimide using it. A diamine represented by the formula (1): wherein each of X1 and X5 which are independent of each other, is a single bond or the like; each of X2 and X4 which are independent of each other, is —CH2— or the like; X3 is a C1-6 alkylene or the like; each of Y1 and Y2 which are independent of each other, is a single bond or the like; R is a C1-20 linear, branched or cyclic hydrocarbon group; and a is 0 or 1).

Abstract: There is provided a material that exhibits high solvent resistance after the formation of a cured film, excellent photo-alignment capability relative to a polymerizable liquid crystal, satisfactory heat resistance, and high transparency and moreover, that can be dissolved in a glycol-based solvent, a ketone-based solvent, or a lactic acid ester-based solvent that is applicable to the production of an overcoating of a color filter, during the formation of the cured film. A composition for forming thermoset film having photo-alignment properties, including: a component (A) that is a compound having a photo-aligning group and a hydroxy group; and a component (B) that is a silicon isocyanate compound. A liquid crystal alignment layer formed from the thermoset film forming composition, and an optical device with a retardation layer obtained by use of the thermoset film forming composition.

Abstract: There is provided a material that exhibits high solvent resistance after the formation of a cured film, excellent photo-alignment capability relative to a polymerizable liquid crystal, satisfactory heat resistance, and high transparency and moreover, that can be dissolved in a glycol-based solvent, a ketone-based solvent, or a lactic acid ester-based solvent that is applicable to the production of an overcoating of a color filter, during the formation of the cured film. A composition for forming thermoset film having photo-alignment properties and containing a component (A) that is a compound having a photo-aligning group and a hydroxy group, a component (B) that is a melamine formaldehyde resin, and a component (C) that is a crosslinker.

Abstract: There is provided a material that after the formation of a cured film, exhibits high solvent resistance, liquid crystal-alignment properties, heat resistance, and high transparency. A composition for forming thermoset film having photo-alignment properties and containing a component (A) that is a compound having a photo-aligning group and a hydroxy group, a component (B) that is a polymer having any one of or both of a hydroxy group and a carboxy group, and a component (C) that is a crosslinker.

Abstract: There is provided a material that after the formation of a cured film, exhibits high solvent resistance, liquid crystal-alignment properties, heat resistance, and high transparency. A composition for forming thermoset film having photo-alignment properties and containing a component (A) that is a compound having a photo-aligning group and a hydroxy group, a component (B) that is a polymer having any one of or both of a hydroxy group and a carboxy group, and a component (C) that is a crosslinker.

Abstract: There is provided a material that exhibits high solvent resistance after the formation of a cured film, excellent photo-alignment capability relative to a polymerizable liquid crystal, satisfactory heat resistance, and high transparency and moreover, that can be dissolved in a glycol-based solvent, a ketone-based solvent, or a lactic acid ester-based solvent that is applicable to the production of an overcoating of a color filter, during the formation of the cured film. A composition for forming thermoset film having photo-alignment properties, including: a component (A) that is a compound having a photo-aligning group and a hydroxy group; and a component (B) that is a silicon isocyanate compound. A liquid crystal alignment layer formed from the thermoset film forming composition, and an optical device with a retardation layer obtained by use of the thermoset film forming composition.

Abstract: There is provided a material that exhibits high solvent resistance after the formation of a cured film, excellent photo-alignment capability relative to a polymerizable liquid crystal, satisfactory heat resistance, and high transparency and moreover, that can be dissolved in a glycol-based solvent, a ketone-based solvent, or a lactic acid ester-based solvent that is applicable to the production of an overcoating of a color filter, during the formation of the cured film. A composition for forming thermoset film having photo-alignment properties and containing a component (A) that is a compound having a photo-aligning group and a hydroxy group, a component (B) that is a melamine formaldehyde resin, and a component (C) that is a crosslinker.

Abstract: To provide a liquid crystal alignment treating agent to obtain a liquid alignment film of polyamide type which, in its applications to various display devices employing nematic liquid crystal, is excellent in voltage retention, has a reduced charge accumulation and is excellent in durability against rubbing treatment, and a liquid crystal display device employing it.