A method for producing a master batch having improved properties is provided. The method relates to, in particular, a master batch containing a polycarbonate and a reinforcing filler, preferably selected from one or more members of the group including the members titanium dioxide (TiO.sub.2), talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2), dolomite CaMg[CO.sub.3].sub.2, kaolinite Al.sub.4[(OH).sub.8|Si.sub.4O.sub.10] and wollastonite Ca.sub.3[Si.sub.3O.sub.9], preferably selected from one or more members of the group including the members titanium dioxide (TiO.sub.2) and talc (Mg.sub.3Si.sub.4O.sub.10(OH).sub.2). The content of the reinforcing filler is 30 to 70 wt. %, preferably 35 to 65 wt. %, particularly 40 to 60 wt. %, relative to the total weight of the molding compound. A method for producing a molding compound having improved properties is also provided.

A composition and a method for preparing a polymer composite article. The composition comprises (A) a polyvinyl butyral (PVB) polymer in an amount of from 10 to 90 wt. %. The composition also comprises (B) a filler in an amount of from 10 to 90 wt. %. Further, the composition comprises (C) an acrylic polymer additive in an amount of from greater than 0 to 10 wt. %, the acrylic polymer additive selected from acrylic copolymers having a weight average molecular weight of at least 4,000,000 Da and a core-shell acrylic additive having a crosslinked core and a shell comprising an acrylic homopolymer or copolymer. The ranges for components (A)-(C) are based on the total weight of components (A), (B) and (C) in the composition.

A propylene polymer composition includes a propylene homopolymer (A) having an intrinsic viscosity [η] measured in a tetralin solvent at 135° C. in the range of 7 to 12 dl/g, a propylene polymer (B) having an intrinsic viscosity [η] in the range of not less than 0.21 dl/g and less than 0.54 dl/g, and having a proportion of a component eluted at a temperature of not more than −20° C. in TREF in the range of not more than 3.5 mass %, and a propylene polymer (C) having an intrinsic viscosity [η] in the range of not less than 0.54 dl/g and less than 2.6 dl/g, wherein the content of (A) is 0.5 to 47.5 mass %, the content of (B) is 5 to 95 mass % and the content of (C) is 2.5 to 85.5 mass %, based on the total of (A), (B) and (C).

A propylene polymer composition includes a propylene homopolymer (A) having an intrinsic viscosity [η] measured in a tetralin solvent at 135° C. in the range of 7 to 12 dl/g, a propylene polymer (B) having an intrinsic viscosity [η] in the range of not less than 0.21 dl/g and less than 0.54 dl/g, and having a proportion of a component eluted at a temperature of not more than −20° C. in TREF in the range of not more than 3.5 mass %, and a propylene polymer (C) having an intrinsic viscosity [η] in the range of not less than 0.54 dl/g and less than 2.6 dl/g, wherein the content of (A) is 0.5 to 47.5 mass %, the content of (B) is 5 to 95 mass % and the content of (C) is 2.5 to 85.5 mass %, based on the total of (A), (B) and (C).

A structure (piping part (121)) has a cured product of a thermosetting resin composition (resin molded body (101)) and a plating layer (103) formed on a surface of the cured product, in which the plating layer (103) has a Cu layer (second plating layer (107)) and a thickness of the Cu layer (second plating layer (107)) is 2 μm or more and 50 μm or less.

A polyurethane foam may include an isocyanate polymer component and a polyol component. The polyol component may include a polyol having a molecular weight of at least about 500 kg/mol and not greater than about 6000 kg/mol. The polyurethane foam may have an elongation of at least about 500%. The polyurethane foam may further have a density of at least about 250 g/L and a tensile strength of not greater than about 1000 kPa.

A room temperature curable sealant/adhesive composition is disclosed. The room temperature curable sealant/adhesive composition comprises: A) one or more organopolysiloxanes; B) a hydrophilic material; C) a cross-linker; D) a titanate catalyst and/or a zirconate catalyst; and E) one or more optional ingredients. A silicone elastomer formed therefrom and related methods are also disclosed. In general, such compositions (upon several hours of contact with water) do not repel water, but rather retain and pick-up water and/or can be wetted by aqueous materials subsequent to exposure.

An embodiment of the present technology is an isocyanate-based adhesive used for a surface-treated crystalline thermoplastic resin base material, the isocyanate-based adhesive having a value represented by (JIS-A hardness)/(strength at break [MPa])×(elongation at break (%))/100 of 2.0 to 70 after being cured by being allowed to stand still under a condition at 23° C. and 50% RH for 3 days, and the crystalline thermoplastic resin base material having a value represented by (δ.sup.d/δ.sup.p+δ.sup.p) of 2.0 to 30.0. δ.sup.p=γ.sup.p−γ.sup.p0 and δ.sup.d=|γ.sup.d−γ.sup.d0|, γ.sup.p0 is a polar term of surface free energy before the surface treatment, γ.sup.p is a polar term of surface free energy after the surface treatment, γ.sup.d0 is a dispersion term of the surface free energy before the surface treatment, and γ.sup.d is a dispersion term of the surface free energy after the surface treatment.

Disclosed herein are a polyimide film for graphite sheets and a graphite sheet manufactured using the same. The polyimide film is fabricated by imidizing a precursor composition including: a polyamic acid prepared by reacting a dianhydride monomer with a diamine monomer; and an organic solvent, wherein the diamine monomer includes about 30 mol % to about 70 mol % of 4,4′-methylenedianiline and about 30 mol % to about 70 mol % of 4,4′-oxydianiline based on the total number of moles of the diamine monomer, 4,4′-methylenedianiline and 4,4′-oxydianiline being present in total in an amount of about 85 mol % or more based on the total number of moles of the diamine monomer.

The use of at least one mono-substituted succinic anhydride is described before or during compounding of a polymer composition including at least one polymer as polymer component and at least one calcium carbonate-based material as filler. The use of the at least one mono-substituted succinic anhydride can reduce the polymer decomposition during processing and/or can decrease the melt flow rate of such a compounded polymer composition by at least 10%. The use can also increase the viscosity of such a compounded polymer composition by at least 10%, in comparison to the same polymer composition that has been treated the same way in the absence of any mono-substituted succinic anhydride, wherein the polymer composition does not include polylactic acid.