The invention relates to a curable volume expandable polymer composition comprising an organic acid component, wherein the organic acid component comprises a first organic acid, a second organic acid, and optionally one or more additional organic acids; wherein said polymer composition, when being heated to an activation of expansion temperature above room temperature, undergoes volume expansion. When the organic acid component is heated to the activation of expansion temperature, the first organic acid and/or the second organic acid and/or the optionally present one or more additional organic acids decarboxylate and thus release carbon dioxide. The polymer composition traps the thus released carbon dioxide thereby causing the polymer composition to undergo volume expansion.

A particle-dispersed polyimide precursor solution contains: a polyimide precursor consisting of a polymer of a tetracarboxylic dianhydride and a diamine containing a fluorene-based diamine having a fluorene skeleton; particles; and an aqueous solvent containing water.

A biaxially-stretched polyester film and a method for producing the same are provided. The biaxially-stretched polyester film includes a polyester resin matrix and spherical smoothing agents dispersed therein. The polyester resin matrix has a refractive index within a range from 1.5 to 1.7. The spherical smoothing agents each have a refractive index within a range from 1.3 to 1.9, a particle size within a range from 30 nm to 5 μm, and a circularity not less than 0.6. Based on 100 parts by weight of the biaxially-stretched polyester film, a content range of the polyester resin matrix is from 50 to 99.999 parts by weight, and a content range of the spherical smoothing agents is from 0.0001 to 10 parts by weight. The biaxially-stretched polyester film has a haze not greater than 2% and a transparency not less than 85%.

The present invention provides a thermoplastic resin composition having a gel content of 40% by mass or more, comprising: a rubber-containing polymer (A); and a phosphorus-based antioxidant (B) having an alkyl group having 8 or more carbon atoms, wherein a melt flow rate (M1) for a retention time of 4 minutes measured in accordance with JIS K7210 under conditions of a temperature of 280° C. and a load of 49 N is 20 [g/10 min] or more. Even with a high gel content, the thermoplastic resin composition is high in fluidity and thermal stability during molding and easy to handle, and can be stably produced.

An electrically conductive multilayer film is disclosed. The conductive multilayer film may comprise a non-conductive base layer and a transparent layer comprising transparent conductor material provided on the non-conductive base layer, wherein the transparent layer comprising transparent conductor material is at least partly covered with transparent dielectric material forming a coating layer on the transparent layer comprising transparent conductor material such that the transparent layer comprising transparent conductor material is situated between the coating layer and the non-conductive base layer, and wherein the thickness of the coating layer is 10-600 nm in order to enable processing of the transparent layer comprising transparent conductor material through the coating layer. Further is disclosed a method, a touch sensing device, and different uses.

The present invention relates to a composite preform comprising a multistage polymer. The present invention further relates to a method for making a composite preform comprising a fibrous material and a multistage polymer and its use in making composite articles. The present invention also relates to a process for preparing a composite preform comprising a fibrous material and a multistage polymer and its use for producing fibre reinforced impact modified composites.

The purpose of the present invention is to provide an organic polymer fine particle which can be hardly fallen off from a film when used as an anti-blocking agent for a film. The organic polymer fine particle according to the present invention is characterized in comprising a (meth)acrylate polymer crosslinked by a bifunctional crosslinkable monomer and a hindered phenol antioxidant or a component derived therefrom, wherein a ratio of a structure unit composed of the bifunctional crosslinkable monomer in the (meth)acrylate polymer crosslinked by the bifunctional crosslinkable monomer is 5 mass % or more and 35 mass % or less, the sedimentation start time is 16 seconds or more, an amount of Al measured by a high-frequency inductively coupled plasma emission spectrometric analysis method is 1 ppm or less, and an amount of a sulfur atom measured by a high-frequency inductively coupled plasma emission spectrometric analysis method is 300 ppm or less in the organic polymer fine particle.

Provided is an aromatic polycarbonate resin sheet/film which has excellent bending characteristics and surface smoothness. It is found that a sheet having excellent surface smoothness, which cannot be achieved by conventional sheets, can be obtained by adjusting sheet extrusion conditions for a polycarbonate resin sheet/film into which a reinforcing filler is blended. It is also found that a thermally shaped article having excellent appearance can be obtained by using this sheet in pressure molding or in thermal press molding.

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. %.

A packaging material for carton products and a packaging method thereof are provided. The packaging material includes an inner packaging film and an outer packaging film. The inner packaging film includes a first polypropylene material and a first resin additive. The first polypropylene material has a first melting point. The melting point of the first resin additive is not greater than the first melting point. The outer packaging film includes a second polypropylene material, a second resin additive, and a slip agent. The second polypropylene material has a second melting point. The first melting point is greater than the second melting point. An absolute value of a difference between the first melting point and the second melting point is between 10° C. and 40° C. The melting point of the second resin additive is not greater than the second melting point.