A polypropylene comprising within a range from 0.1 wt % to 4 wt % ethylene and/or C4 to C12 α-olefin derived units, one or more clarifiers, or both; wherein the polypropylene has a flexural modulus of at least 200 kpsi (0.05 in/min ASTM D790(A)) and an Mz/Mw of at least 4. The polypropylenes may be made by combining propylene and a comonomer with a Ziegler-Natta catalyst and at least two external electron donors, wherein the concentration of the electron donors is within a range from 1 to 100 ppm. The concentration of electron donors may be decreased to control the haze level of the polypropylene, and/or the level of comonomer derived units may be controlled to reduce the haze level of the polypropylene.

A thermosetting resin material, a prepreg, and a metal substrate are provided. The thermosetting resin material includes a resin composition and inorganic fillers. The resin composition includes: 10 wt % to 30 wt % of a polyphenylene ether resin, 40 wt % to 60 wt % of a cyanate resin, and 20 wt % to 40 wt % of a bismaleimide resin. The inorganic fillers undergo a surface modification process to have at least one of an acryl group and an ethylene group.

The present disclosure is directed to a thermoplastic polymer for additive manufacturing, wherein the thermoplastic polymer is derived from a chlorinated monomer unit, wherein the thermoplastic polymer has a melt flow rate (MFR) suitable for additive manufacturing. The present disclosure is also directed to a method of making a 3D product formed by additive manufacturing, wherein the 3D product comprises a thermoplastic polymer derived from a chlorinated monomer unit or a thermoplastic composition comprising at least one thermoplastic polymer derived from a chlorinated monomer unit; and at least one stabiliser, wherein the thermoplastic polymer or composition has a MFR suitable for additive manufacturing.

Provided are thermoplastic polymer particles having an aspect ratio of 1.00 or more and less than 1.05, and a roundness of 0.95 to 1.00. The thermoplastic polymer particles are formed from a thermoplastic polymer resin in a continuous matrix phase. The thermoplastic polymer particles show a peak cold crystallization temperature (T.sub.cc) at a temperature between a glass transition temperature (T.sub.g) and the melting point (T.sub.m) in a differential scanning calorimetry (DSC) curve which is derived from temperature rise analysis at 10° C./min by differential scanning calorimetry.

Provided is a production method for a layered product in which a metal film can be formed on the surface of a polyarylene sulfide (PAS) molded article with a high adhesive force by a simple step. Further, provided are: a polyarylene sulfide resin composition and a molded article that can be used in the layered product in which a metal film can be formed on the surface of the PAS molded article with a high adhesive force by a simpler step; and production methods therefor. More specifically, provided are: a polyarylene sulfide resin composition obtained by blending a polyarylene sulfide resin, a thermoplastic elastomer and/or a hydrolyzable thermoplastic resin, a carbonate, and a polyolefin-based wax; a molded article which is obtained by melt-molding the polyarylene sulfide resin composition and in which the surface is roughened; a layered product having a metal plating layer; and production methods therefor.

A polyethylene composition having increased environmental stress crack resistance (ESCR) is comprised of a polymer blend of a high density polyethylene (HDPE) and a polycarbonate-siloxane copolymer. The polycarbonate-siloxane copolymer is present in the polymer blend in an amount of from 0.5 wt. % to 15 wt. % by total weight of the polymer blend. In a method of forming a polyethylene composition having increased ESCR, a HDPE is modified by combining the HDPE with a polycarbonate-siloxane copolymer in a polymer blend, the polycarbonate-siloxane copolymer being present in an amount of from 0.5 wt. % to 15 wt. % by total weight of the polymer blend. The polymer blend can be formed into an article of manufacture, such as a bottle cap.

The present invention relates to the preparation of a thermoplastic fluoropolymer blend composition exhibiting improved mechanical properties upon fabrication. The fluoropolymer blend composite on is produced by blending an emulsion latex of fluoropolymer (A) with an emulsion latex of fluorinated copolymer (B). Copolymer (B) emulsion has a small particle size, super high MW, and a low degree of crystallinity. The blending of the latex emulsions results in a morphology with small particles of copolymer (B) uniformly distributed within a matrix of fluoropolymer (A) in a manner that could not be achieved by a mere melt blending of the tow components.

An epoxy resin composition including components (A), (B), (C) and (D); wherein a content of the component (A) is 60 to 90 parts by mass, and a content of the component (B) is 10 to 40 parts by mass, with respect to epoxy resins; the epoxy resin composition has a characteristic that, when cured and formed into a cured product, the cured product has a glass transition temperature of 200° C. or higher; and a viscosity at 100° C. of the resin composition is 5 to 35 Pa.Math.s, wherein Component (A) is an aromatic epoxy resin having at least 3 glycidyl groups in one molecule, Component (B) is an aromatic epoxy resin having two glycidyl groups in one molecule, Component (C) is an aromatic polysulfone resin having a reduced viscosity of 0.18 to 0.30 dl/g; and Component (D) is an aromatic amine compound.

Thermoplastic styrene copolymer resin composition comprising: (a1) at least one styrene-acrylonitrile copolymer component A1, (a2) at least one acrylonitrile styrene acrylate graft copolymer A2 as impact modifier, (a3) optionally at least one thermoplastic polymer A3 other than components A1 and A2, (b) at least one transition metal oxide pigment B, (cl) at least one hindered amine UV light stabilizer C1, (c2) optionally at least one UV absorber C2 different from Cl, (d) optionally further polymer additives D, other than components B, C1, C2, and E, and (e) optionally one metal scavenger component E, wherein at least 99.0 wt.-% of the transition metal oxide pigment B consist of transition metal atoms and oxygen atoms.

The present invention relates to heterophasic polypropylene compositions comprising a propylene homo- or copolymer forming a crystalline fraction as a matrix and an amorphous propylene ethylene elastomer as a soluble fraction dispersed in said matrix. The heterophasic polypropylene compositions further comprise an elastomeric ethylene/alpha-olefin random copolymer. The heterophasic polypropylene compositions have a well-balanced relation between stiffness and impact strength, low volatile and semi-volatile emissions and good processability.