A water-soluble packaging film according to the present invention is a water-soluble packaging film comprising a polyvinyl alcohol resin, and has, on a film surface, irregularities having a surface roughness (Ra) of 0.3 to 1 m and a maximum height (Rz) of 3 to 9 m.

A resist composition comprising a base polymer and a sulfonium or iodonium salt of sulfonic acid containing a morpholino group offers dimensional stability on PPD and a satisfactory resolution.

A resist composition comprising a base polymer and a sulfonium or iodonium salt of sulfonic acid containing a morpholino group offers dimensional stability on PPD and a satisfactory resolution.

There is provided a dielectric composite material comprising (a) 20-50 weight % total solids of at least one thermosetting resin and other resin components; and (b) 50-70 weight % total solids of at least one inorganic particulate filler; where the at least one inorganic particulate filler is surface modified with one or more acrylic-based silane coupling agents.

Embodiments of the disclosure generally provide methods related to articles that display reversible photoresponsive behavior.

Provided are a polymer, a resist composition including the same, and a method of forming a pattern using the resist composition, the polymer including one or more of a first repeating unit represented by Formula 1 and a second repeating unit represented by Formula 2, and free of a repeating unit of which a structure changes by an acid:

##STR00001##

In Formulae 1 and 2, R.sub.11 to R.sub.16, b12, X.sup.?, R.sub.21 to R.sub.24, b22, and Y are as described in the specification.

Provided are a polymer, a resist composition including the same, and a method of forming a pattern using the resist composition, the polymer including one or more of a first repeating unit represented by Formula 1 and a second repeating unit represented by Formula 2, and free of a repeating unit of which a structure changes by an acid:

##STR00001##

In Formulae 1 and 2, R.sub.11 to R.sub.16, b12, X.sup.?, R.sub.21 to R.sub.24, b22, and Y are as described in the specification.

Embodiments of the disclosure generally provide compositions and methods related to articles that display reversible photoresponsive behavior.

Embodiments of the present disclosure generally provide compositions and methods related to articles that display reversible photoresponsive behavior.

A two-package dental adhesive composition is provided that has an excellent adhesive property for each of various dental materials and also has excellent storage stability. The two-package dental adhesive composition includes a first agent and a second agent which are divided from each other. The two-package dental adhesive composition includes at least five components including: (A) an acidic group-containing polymerizable monomer; (B) a sulfur atom-containing polymerizable monomer; (C) a silane coupling agent; (D) a borate compound; and (E) water. The first agent contains only (A) the acidic group-containing polymerizable monomer and (B) the sulfur atom-containing polymerizable monomer out of the five components. The second agent contains only (C) the silane coupling agent, (D) the borate compound, and (E) the water out of the five components.