The invention is to provide a flame-retardant polypropylene resin composition that exhibits extremely high-level flame retardance and is given mechanical properties (rigidity, impact shock), weather resistance and moldability by satisfying both self-extinguishing property and drip resistance and to provide a molded article using the composition. The invention relates to a polypropylene resin composition comprising a specific polypropylene resin (A) that contains a polypropylene resin (X) having a specific long-chain branched structure, a specific fiber (B) and an organic flame retardant (C) each in an amount falling within a range of a specific amount, and to a molded article obtained by molding the composition.

The invention is to provide a flame-retardant polypropylene resin composition that exhibits extremely high-level flame retardance and is given mechanical properties (rigidity, impact shock), weather resistance and moldability by satisfying both self-extinguishing property and drip resistance and to provide a molded article using the composition. The invention relates to a polypropylene resin composition comprising a specific polypropylene resin (A) that contains a polypropylene resin (X) having a specific long-chain branched structure, a specific fiber (B) and an organic flame retardant (C) each in an amount falling within a range of a specific amount, and to a molded article obtained by molding the composition.

A PEEK-PEoDEK copolymer having RPEEK and RPEoDEK repeat units in a molar ratio RPEEK/RPEoDEK ranging from 95/5 to 70/30, a method of making the PEEK-PEoDEK copolymer and the polymer composition including the PEEK-PEoDEK copolymer, at least one reinforcing filler, at least one additive, or a combination thereof, shaped articles including the polymer composition, polymer-metal junctions including the polymer composition. Also described are methods of making the polymer composition, methods of making the shaped articles, and methods of making the polymer-metal junctions.

Provided are a polypropylene resin composition comprising a polypropylene resin (A), a specific fiber (B), an organic flame retardant (C) and a polytetrafluoroethylene resin (D) each in a specific amount, and a molded article obtained by molding the composition.

A thermally conductive sheet according to the present invention is a thermally conductive sheet comprising a thermally conductive filler, the thermally conductive sheet having a thermal conductivity of 7 W/m.Math.K or more, a 30% compression strength of 1500 kPa or less, and a tensile strength of 0.08 MPa or more. According to the present invention, a thermally conductive sheet having excellent thermally conductive properties, flexibility, and handling properties can be provided.

A wet friction material includes a base including a matrix of fibers and filler particles embedded in the matrix of fibers; a binder embedded in an interior of the base; and a quaternary ammonium salt containing coating on an outer surface of the base. The quaternary ammonium salt containing coating can include a quaternary ammonium salt and a solution binder

A wet friction material includes a base including a matrix of fibers and filler particles embedded in the matrix of fibers; a binder embedded in an interior of the base; and a quaternary ammonium salt containing coating on an outer surface of the base. The quaternary ammonium salt containing coating can include a quaternary ammonium salt and a solution binder

A method for manufacturing a composite product, including: 1) preparing a composite powder including 10-50 v. % of a polymer adhesive and 50-90 v. % of a chopped fiber; 2) shaping the composite powder by using a selective laser sintering technology to yield a preform including pores; 3) preparing a liquid thermosetting resin precursor, immersing the preform into the liquid thermosetting resin precursor, allowing a liquid thermosetting resin of the liquid thermosetting resin precursor to infiltrate into the pores of the preform, and exposing the upper end of the preform out of the liquid surface of the liquid thermosetting resin precursor to discharge gas out of the pores of the preform; 4) collecting the preform from the liquid thermosetting resin precursor and curing the preform; and 5) polishing the preform obtained in 4) to yield a composite product.

A method for manufacturing a composite product, including: 1) preparing a composite powder including 10-50 v. % of a polymer adhesive and 50-90 v. % of a chopped fiber; 2) shaping the composite powder by using a selective laser sintering technology to yield a preform including pores; 3) preparing a liquid thermosetting resin precursor, immersing the preform into the liquid thermosetting resin precursor, allowing a liquid thermosetting resin of the liquid thermosetting resin precursor to infiltrate into the pores of the preform, and exposing the upper end of the preform out of the liquid surface of the liquid thermosetting resin precursor to discharge gas out of the pores of the preform; 4) collecting the preform from the liquid thermosetting resin precursor and curing the preform; and 5) polishing the preform obtained in 4) to yield a composite product.

Disclosed herein is a flooring material including: a plasticizer; fibers comprising at least one type of inorganic fibers or at least one type of organic fibers; and a thermoplastic resin. The fibers have an alignment. In addition, a method for manufacturing a flooring material is also disclosed. The method includes preparing a first mixture by mixing a liquid plasticizer with fibers comprising at least one type of inorganic fibers or at least one type of organic fibers; preparing a second mixture in which the fibers are dispersed in the liquid plasticizer by agitating the first mixture; preparing a third mixture by mixing the second mixture with a thermoplastic resin; and forming a floor material through thermo-compression of the third mixture.