A resin composition contains one or more 2-methylene-1,3-dicarbonyl compounds. At least one of the one or more 2-methylene-1,3-dicarbonyl compounds has a molecular weight of 220 to 10,000, and the amount by weight of those of the 2-methylene-1,3-dicarbonyl compounds having a molecular weight of less than 220 relative the entire resin composition of 1 is 0.00 to 0.05. The 2-methylene-1,3-dicarbonyl compounds contain a structural unit represented by formula (I) below. ##STR00001##

An object of the present invention is to provide a composition that can form a magnetic particle-containing film having excellent magnetic isotropy and has excellent temporal stability. Another object of the present invention is to provide a magnetic particle-containing film that relates to the composition, and an electronic component that includes the magnetic particle-containing film.

The composition according to an embodiment of the present invention is a composition containing magnetic particles and a rheology control agent, in which a content of the magnetic particles having an aspect ratio less than 8 is 25% by mass or more with respect to a total mass of the magnetic particles, the magnetic particles contain metal atoms, the metal atoms contain one or more kinds of specific atoms selected from the group consisting of Ni atoms and Co atoms, and a content of the specific atoms is 50% by mass or more with respect to a total mass of the metal atoms.

A black resin composition, a cured film, and a black filter are provided. The black resin composition includes: a black coloring agent (A), an ethylenically-unsaturated monomer (B), a solvent (C), a resin (D), a photoinitiator (E), a UV absorber (F), and a surfactant (G). The resin (D) includes a first resin having a weight-average molecular weight of 2,000 to 20,000. The first resin includes a structural unit having a fluorene ring and two or more ethylenically-polymerizable groups. The UV absorber (F) includes a benzylidene-based derivative.

A resin composition including a resin R including a repeating unit having a partial structure of Formula (I) or (II):

##STR00001##

where Q.sub.A is an ester bond shown in the Formula (I), R.sub.A is a substituent group, n1 is any of integers 1 to 5, * is a bonding site with a remainder of the repeating unit, and ** is a bonding site with a phenyl group in the Formula (I);

##STR00002##

where Q.sub.B is a linking group or a single bond other than the ester bond of Q.sub.A in Formula (I), R.sub.B is a substituent group, with at least one R.sub.B being a hydroxyl group, n2 is any of integers 1 to 5, and * is a bonding site with a remainder of the repeating unit.

Provided herein are methods for fabricating a porous polymer material, methods for revealing hidden anti-counterfeiting patterns, chromogenic sensors having hidden anti-counterfeiting patterns, and the like. Chromogenic sensors including porous polymer materials are provided. The chromogenic sensors can reveal hidden patterns such as anti-counterfeiting patterns and the pattern can be re-hidden.

The invention relates to a thermoset polymer powder having a particle size D90 of 60 μm or less, determined by laser diffraction, wherein the polymer is obtainable by polymerization of compounds having one or more ethylenically unsaturated polymerizable groups, and wherein the compounds having one or more ethylenically unsaturated polymerizable groups include at least one compound having at least two ethylenically unsaturated polymerizable groups.

Process for curing a thermoset resin comprising the step of contacting said resin with (i) an imine of the structure C(R.sup.2)(R.sup.3)═N—R.sup.1 wherein R.sup.1 is selected from hydrogen, hydroxyl, linear or branched alkyl having 1-22 carbon atoms, cycloalkyl having 3-22 carbon atoms, aryl having 6 to 15 carbon atoms, and aralkyl having 7 to 22 carbon atoms, which alkyl, cycloalkyl, aryl, and aralkyl groups may be optionally substituted with one or more groups containing heteroatoms selected from S, O, P, and/or Si. R.sup.2 is selected from C(R.sup.6)(R.sup.5)—C(═O)—R.sup.4, —C(R.sup.6)(R.sup.5)—C(═S)—R.sup.4, and —C(R.sup.6)(R.sup.5)—C(═N)—R.sup.4, wherein R.sup.4, R.sup.5, and R.sup.6 are selected from hydrogen, linear or branched alkyl having 1-6 carbon atoms, cycloalkyl having 3-12 carbon atoms, aryl, aralkyl, alkoxy having 1-6 carbon atoms, and aryloxy. R.sup.3 is selected from linear or branched alkyl having 1-22 carbon atoms, 1 cycloalkyl having 3-22 carbon atoms, aryl having 6 to 15 carbon atoms, and aralkyl having 7 to 22 carbon atoms, and (ii) methyl isopropyl ketone peroxide.

An adhesive strip including a support, a substrate and a plurality of fixing elements protruding from the substrate. The fixing elements and substrate are formed from a photo-curable adhesive composition that includes component A: a (meth)acrylate monomer or oligomer having at least two (meth)acrylate groups and having an average molecular weight M.sub.w from 700 g/mol to 7000 g/mol; component B: a (meth)acrylate monomer or oligomer having at least two (meth)acrylate groups and having an average molecular weight M.sub.w equal or greater than 150 g/mol and less than 700 g/mol; component C: a photoinitiator; and component D: a polythiol. A reclosable fastener can be formed with the adhesive strip such as a reclosable male-to-male adhesive based on a fastener having two adhesive strips.

The present invention relates to a radiation curable composition. In particular, the present invention relates to a radiation curable composition with hydrophilic nanoparticles for use in barrier stacks for protection of sensitive devices against moisture.

Provided herein are porous polymer monolith materials and processes that enable integration of blood fractionation, specific nucleic acid amplification and/or detection of nucleic acids from whole blood.