The present invention provides a method for preparing high-strength cross-linked polymer photonic crystal film by core-shell polymer microspheres via evaporation-induced self assembly. Monodispersed core-shell polymer microspheres are fabricated by emulsifier-free emulsion polymerization, and then the microspheres emulsion is coated onto suitable substrates. Finally, polymer photonic crystal film with long-range ordered is constructed via self assembly. Self-cross-linking between the two units improves the strength of the polymer photonic crystal film, therefore the preparation of large size industrial-grade photonic crystal film is practicable which extends its application on the field of dyeing.

There is provided a thermosetting resin composition. A resin composition, comprising: (A) component, (B) component, and a solvent, wherein the content of the (B) component is 0.1 to 5.0% by mass with respect to the content of all components of the resin composition, except the solvent: (A) component: a self-crosslinking copolymer having a structural unit of Formula (1) below and a structural unit of Formula (2) below (B) component: a compound of Formula (3) below

##STR00001##

wherein R.sup.0 is each independently a hydrogen atom or a methyl group, X is O or NH, R.sup.1 is a single bond or an alkylene group, R.sup.2 is an alkyl group, a is an integer of 1 to 5, b is an integer of 0 to 4, R.sup.3 is a divalent organic group having an ether bond and/or an ester bond, R.sup.5 is an alkyl group, f is an integer of 1 to 5, g is an integer of 0 to 4, R.sup.6 is a single bond or an alkylene group, Y is a single bond or an ester bond, A is a mono- to tetra-valent organic group which optionally contain at least one hetero atom, or a hetero atom, and h is an integer of 1 to 4.

The present invention relates to a self-extinguishing polymeric composition comprising: a) a stabilizing polymeric composition containing i) from 80% to 99.5% by weight of one or more vinylaromatic polymers compatible with each other; and ii) from 0.5% to 20% by weight of at least one block copolymer containing: 1) at least one vinylaromatic polymer block compatible N with (i) and constituting a weight quantity equal to or higher than 15% by weight with respect to the whole block copolymer, and 2) at least one vinyl copolymer block containing epoxy groups so that there is from 0.7% to 19% by weight of oxirane oxygen calculated on the total of block copolymer; and b) from 0.03 phr by weight to 10 phr by weight, calculated on the basis of component (a), of at least one halogenated flame retardant.

Polymer particles excellent in uniform dispersibility and the use thereof are provided. The polymer particles contain a surfactant, and have a coefficient of variation in the volume-based particle diameter distribution in the range from not less than 13.0% to not more than 25.0%. When 15.0 g of water is added to 5.0 g of the polymer particles so as to disperse the polymer particles in the water by performing a dispersion treatment for 60 minutes using an ultrasonic cleaner, and furthermore when an obtained dispersion liquid is put into a centrifuge tube with an inside diameter of 24 mm so as to be centrifuged, by a centrifugal separator, under conditions that K factor is 6943 and a rotating time is 30 minutes to recover a supernatant, a concentration of non-volatile components in the obtained supernatant is less than 3.5 wt. %.

The invention relates to a thermoplastic composition (P) comprising a copolymer (a) of vinylaromatic monomer and methyl methacrylate monomer, at least two hindered amine light stabilizers, at least two UV absorbers, and optionally further additives. It further relates to a process for the preparation of the thermoplastic composition (P), a process for the preparation of a shaped article, the shaped article, and the use of the components for the preparation of a thermoplastic composition (P). The thermoplastic composition (P) has high clarity, low haze, and advantageous high UV stability.

The present invention relates to a method of forming a foam material, the method comprising the steps of: a) providing an aqueous dispersion comprising polymer particles and a functional filler dispersed in the aqueous phase, and b) lyophilising the aqueous dispersion, to thereby form the foam material. The invention also relates to a foam material produced by the method, and uses of the foam material, for example in anti-static casings, electrode materials, support elements, insulators, catalysis, as membranes for water filtration, implantable materials for biomedical engineering and electromagnetic interference shielding.

A resin sheet for electronic component packaging with transparency, excellent folding endurance, and also excellent low-temperature heat sealing property, and an electronic component packaging container using the resin sheet. A resin sheet for electronic component packaging, the resin sheet composed of a rubber-modified aromatic vinyl-based copolymer resin that includes rubber-type polymers (Y) as dispersed particles in a continuous matrix resin (X), and that satisfies (1) and (2): (1) the continuous matrix resin (X) is a copolymer of 53-63 mass % of one or more aromatic vinyl-based compounds (x1) and 37-47 mass % of one or more (meth)acrylic acid alkyl esters (x2); and (2) the ratio of the rubber-type polymers (Y) to the total mass of the rubber-modified aromatic vinyl-based copolymer resin is 5 mass % or more and less than 10 mass %.

The present invention relates to a process for producing a molding made from blowing agent-containing foam comprising at least one fiber (F), wherein the at least one fiber (F) is partially introduced into the blowing agent-containing foam. The two ends of the respective fiber (F) that are not surrounded by the blowing agent-containing foam thus project from one side of the corresponding molding. The present invention also provides the molding as such. The present invention further provides a panel comprising at least one such molding, produced by the process according to the invention, and at least one further layer (S1). The present invention also provides for the production of the panels of the invention and for the use thereof, for example as a rotor blade in wind turbines.

A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects.

Hybrid pre-patterns were prepared for directed self-assembly of a given block copolymer capable of forming a lamellar domain pattern. The hybrid pre-patterns have top surfaces comprising independent elevated surfaces interspersed with adjacent recessed surfaces. The elevated surfaces are neutral wetting to the domains formed by self-assembly. Material below the elevated surfaces has greater etch-resistance than material below the recessed surfaces in a given etch process. Following other dimensional constraints of the hybrid pre-pattern described herein, a layer of the given block copolymer was formed on the hybrid pre-pattern. Self-assembly of the layer produced a lamellar domain pattern comprising self-aligned, unidirectional, perpendicularly oriented lamellae over the elevated surfaces, and parallel and/or perpendicularly oriented lamellae over recessed surfaces. The domain patterns displayed long range order along the major axis of the pre-pattern. The lamellar domain patterns are useful in forming transfer patterns comprising two-dimensional customized features.