The present invention relates to a composition for blow-molding or extrusion, in particular blow-molding, comprising by weight: a) from 88 to 99.95%, more particularly from 89 to 99.9%, in particular from 93 to 99.9%, of at least one semicrystalline aliphatic polyamide having a carbon number per nitrogen atom of greater than or equal to 7, more particularly greater than or equal to 8, b) from 0.05% to 10%, more particularly from 0.1% to 9%, in particular from 0.1% to 5% by weight of at least one branching agent chosen from polyepoxides, polyanhydrides, more particularly polymaleic anhydrides and polyepoxides, c) from 0 to 2% of at least one additive, more particularly from 0.1 to 2%, the composition having, after compounding, a melt viscosity of from 10 000 to 300 000 Pa.Math.s, preferably from 15 000 to 220 000 Pa.Math.s, as measured in plane-plane geometry according to standard 6721-10:2015 at a temperature of 250? C., a frequency of 0.292 rad/s and a deformation of 2%, the sum of the constituents a)+b)+c) making 100% by weight.

Provided are: a polycarbonate-based resin composition, including a polycarbonate-based resin (A) containing a polycarbonate-polyorganosiloxane copolymer (A1) having a predetermined structure, and 0.1 part by mass or more to 40 parts by mass or less of a white pigment (B) with respect to 100 parts by mass of the polycarbonate-based resin (A), wherein the white pigment (B) has an organic layer on a surface thereof, and a highest peak temperature of an evolved gas analysis curve of the organic layer obtained by evolved gas analysis with a pyrolysis gas chromatograph apparatus and a FID detector is 390 C. or more; and a molded article thereof.

A polymerizable composition for an optical material according to the present invention includes a polyisocyanate compound (A), a polyol compound (B) having a number average molecular weight of 100 or more, a difunctional or higher functional active hydrogen compound (C) (but, excluding the compound (B)), a photochromic compound (D), and an ultraviolet absorber (E).

A polymerizable composition for an optical material according to the present invention includes a polyisocyanate compound (A), a polyol compound (B) having a number average molecular weight of 100 or more, a difunctional or higher functional active hydrogen compound (C) (but, excluding the compound (B)), a photochromic compound (D), and an ultraviolet absorber (E).

Provided is a composition for window films comprising a siloxane resin of formula 1, a crosslinking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same. (R.sup.1SiO.sub.3/2).sub.x(R.sup.2SiO.sub.3/2).sub.y(R.sup.3R.sup.4SiO.sub.2/2).sub.z(SiO.sub.4/2)w (in formula 1, R.sup.1 is a functional group containing an alicyclic epoxy group, R.sup.2 is a functional group containing a glycidyl group, R.sup.3 and R.sup.4 are each independently a hydrogen, a functional group containing an alicyclic epoxy group, a functional group containing a glycidyl group, an optionally substituted C.sub.1 to C.sub.20 alkyl group, an optionally substituted C.sub.5 to C.sub.20 cycloalkyl group or an optionally substituted C.sub.6 to C.sub.20 aryl group, wherein 0<x<1, 0<y0.5, 0z<1, 0w<1, and x+y+z+w=1).

Provided is a composition for window films comprising a siloxane resin of formula 1, a crosslinking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same. (R.sup.1SiO.sub.3/2).sub.x(R.sup.2SiO.sub.3/2).sub.y(R.sup.3R.sup.4SiO.sub.2/2).sub.z(SiO.sub.4/2)w (in formula 1, R.sup.1 is a functional group containing an alicyclic epoxy group, R.sup.2 is a functional group containing a glycidyl group, R.sup.3 and R.sup.4 are each independently a hydrogen, a functional group containing an alicyclic epoxy group, a functional group containing a glycidyl group, an optionally substituted C.sub.1 to C.sub.20 alkyl group, an optionally substituted C.sub.5 to C.sub.20 cycloalkyl group or an optionally substituted C.sub.6 to C.sub.20 aryl group, wherein 0<x<1, 0<y0.5, 0z<1, 0w<1, and x+y+z+w=1).

A water soluble film useful in unit-dose chemical packaging is disclosed. The film may include: a water soluble saccharide and a polyvinyl alcohol copolymer consisting essentially of: (a) from 80 to 99 mole percent of vinyl alcohol and vinyl ester monomer; and (b) from 1 to 20 mole percent of a pyrrolidone comonomer. Such compositions may be used to provide a water-soluble film simultaneously satisfying requirements in regard to water solubility, biodegradability, and physical properties, even when used for packaging of harsh, oxidizing chemicals.

A water soluble film useful in unit-dose chemical packaging is disclosed. The film may include: a water soluble saccharide and a polyvinyl alcohol copolymer consisting essentially of: (a) from 80 to 99 mole percent of vinyl alcohol and vinyl ester monomer; and (b) from 1 to 20 mole percent of a pyrrolidone comonomer. Such compositions may be used to provide a water-soluble film simultaneously satisfying requirements in regard to water solubility, biodegradability, and physical properties, even when used for packaging of harsh, oxidizing chemicals.

A water soluble film useful in unit-dose chemical packaging is disclosed. The film may include: a water soluble saccharide and a polyvinyl alcohol copolymer consisting essentially of: (a) from 80 to 99 mole percent of vinyl alcohol and vinyl ester monomer; and (b) from 1 to 20 mole percent of a pyrrolidone comonomer. Such compositions may be used to provide a water-soluble film simultaneously satisfying requirements in regard to water solubility, biodegradability, and physical properties, even when used for packaging of harsh, oxidizing chemicals.

Provided is a solvent system containing from 5% to 95% by weight of a composition (A) containing dimethyl sulfoxide (DMSO), with respect to the total weight of the solvent system and from 5% to 95% by weight of a composition (B) comprising at least one lactone, with respect to the total weight of the solvent system. The solvent system has a variety of uses and is highly effective in dissolving polymer materials.