An interlayer film for laminated glass, comprising a first layer containing a polyvinyl acetal-based resin, wherein the first layer contains no plasticizer or contains a plasticizer in an amount of 15 parts by mass or less based on 100 parts by mass of the resin contained in the first layer, and the first layer has a glass transition temperature (Tg) of 50° C. or lower.

The present invention relates to a modified polyvinyl butyral material, comprising a polyvinyl butyral composite material, a filler, an anti-hydrolysis agent, a first plasticizer, zinc stearate, calcium stearate, and a polymeric dispersant; wherein the polyvinyl butyral composite material is obtained by plasticizing a composition comprising polyvinyl butyral and a second plasticizer. The present invention also relates to a preparation method of the modified polyvinyl butyral material, a modified polyvinyl butyral product comprising at least one modified polyvinyl butyral layer prepared from a material comprising the modified polyvinyl butyral material, and the preparation method of the modified polyvinyl butyral product.

The present invention relates to a modified polyvinyl butyral material, comprising a polyvinyl butyral composite material, a filler, an anti-hydrolysis agent, a first plasticizer, zinc stearate, calcium stearate, and a polymeric dispersant; wherein the polyvinyl butyral composite material is obtained by plasticizing a composition comprising polyvinyl butyral and a second plasticizer. The present invention also relates to a preparation method of the modified polyvinyl butyral material, a modified polyvinyl butyral product comprising at least one modified polyvinyl butyral layer prepared from a material comprising the modified polyvinyl butyral material, and the preparation method of the modified polyvinyl butyral product.

The present invention relates to a modified polyvinyl butyral material, comprising a polyvinyl butyral composite material, a filler, an anti-hydrolysis agent, a first plasticizer, zinc stearate, calcium stearate, and a polymeric dispersant; wherein the polyvinyl butyral composite material is obtained by plasticizing a composition comprising polyvinyl butyral and a second plasticizer. The present invention also relates to a preparation method of the modified polyvinyl butyral material, a modified polyvinyl butyral product comprising at least one modified polyvinyl butyral layer prepared from a material comprising the modified polyvinyl butyral material, and the preparation method of the modified polyvinyl butyral product.

Provided is an interlayer film for laminated glass capable of reducing the variation in double images in laminated glass in the direction perpendicular to the direction connecting one end and the other end of the interlayer film, and effectively suppressing double images. An interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the the one end, the other end has a thickness of larger than a thickness of the one end, the interlayer film for laminated glass as a whole has a wedge angle of 0.1 mrad or more, and the interlayer film for laminated glass has a thickness varying region in a region extending in the direction perpendicular to the direction connecting the one end and the other end of the interlayer film, having a standard deviation of 11 partial wedge angles measured by the following measuring method of 0.040 mrad or less.

Provided is an interlayer film for laminated glass capable of reducing the variation in double images in laminated glass in the direction perpendicular to the direction connecting one end and the other end of the interlayer film, and effectively suppressing double images. An interlayer film for laminated glass according to the present invention has one end and the other end being at the opposite side of the the one end, the other end has a thickness of larger than a thickness of the one end, the interlayer film for laminated glass as a whole has a wedge angle of 0.1 mrad or more, and the interlayer film for laminated glass has a thickness varying region in a region extending in the direction perpendicular to the direction connecting the one end and the other end of the interlayer film, having a standard deviation of 11 partial wedge angles measured by the following measuring method of 0.040 mrad or less.

Some embodiments of the present disclosure relate to a method comprising obtaining a mixture comprising at least one vinyl polymer, at least one organic acid, and at least one hydronium ion donor. In some embodiments, the method comprises reacting an —OH group of the B polymer chain segment with the at least one organic acid in the presence of the at least one hydronium ion donor, so as to form at least one polyvinyl ester. Some embodiments of the present disclosure relate to a roofing material comprising at least one reinforcement material and at least one polyvinyl ester.

Some embodiments of the present disclosure relate to a method comprising obtaining a mixture comprising at least one vinyl polymer, at least one organic acid, and at least one hydronium ion donor. In some embodiments, the method comprises reacting an —OH group of the B polymer chain segment with the at least one organic acid in the presence of the at least one hydronium ion donor, so as to form at least one polyvinyl ester. Some embodiments of the present disclosure relate to a roofing material comprising at least one reinforcement material and at least one polyvinyl ester.

Some embodiments of the present disclosure relate to a method comprising obtaining a mixture comprising at least one vinyl polymer, at least one organic acid, and at least one hydronium ion donor. In some embodiments, the method comprises reacting an —OH group of the B polymer chain segment with the at least one organic acid in the presence of the at least one hydronium ion donor, so as to form at least one polyvinyl ester. Some embodiments of the present disclosure relate to a roofing material comprising at least one reinforcement material and at least one polyvinyl ester.

An electronic device with self-recovering properties including a substrate including a polymer composite, a conductive pattern disposed on the substrate, and an electrode disposed on the conductive pattern is provided, and the polymer composite includes a composite of different first and second polymers, the first polymer includes a first functional group capable of forming a hydrogen bond between polymer chains, and the second polymer includes a second functional group capable of forming a hydrogen bond between polymer chains.