3 results about "Phosphonic Acid Esters" patented technology

The present invention provides a conductive polycarbonate resin composition that exhibits excellent surface smoothness, rigidity, and dimensional stability during molding. [Solution] A polycarbonate resin composition comprising (A) 100 parts by weight of polycarbonate resin (component A), (B) 20 to 120 parts by weight of glass flakes (component B) having a number average particle size of 5 to 160 μm and an average thickness of 0.1 to 1.5 μm, (C) 20 to 60 parts by weight of polyester resin (component C), (D) 1 to 30 parts by weight of conductive carbon black (component D), and (E) 0.001 to 1 part by weight of at least one phosphate ester (component E) selected from the group consisting of phosphonic acid esters (component E-1) with an acid value of 0.01 to 0.30 mg KOH / g, acidic phosphate esters (component E-2) with an acid value of 10 to 200 mg KOH / g, and stearyl acid phosphate zinc salt (component E-3).

The present invention provides a resin composition containing a recycled polycarbonate resin that exhibits excellent rigidity, thermal stability, and flame retardancy, and a molded article formed of the same. A resin composition according to the present invention contains: (A) 100 parts by weight of a polycarbonate resin (component A) composed of 1-99 parts by weight of a recycled polycarbonate resin (A-1) and 99-1 parts by weight of a non-recycled polycarbonate resin (A-2); (B) 5-100 parts by weight of at least one inorganic filler (component B) selected from the group consisting of glass fibers (component B-1), carbon fibers (component B-2), and plate-shaped glass fillers (component B-2); (C) 0.01-5 parts by weight of a flame retardant (component C); (D) 0.1-10 parts by weight of a mineral-based inorganic filler (component D); and (E) 0.01-1 parts by weight of at least one phosphate-based stabilizer (component E) selected from the group consisting of phosphonic acid esters (component E-1), acidic phosphoric acid esters (component E-2), and metal salts of acidic phosphoric acid esters (component E-3).

To provide a method for producing oligonucleotides that can suppress the formation of by-products. [Solution] A method for producing an oligonucleotide having a phosphate ester bond by oxidizing an oligonucleotide precursor having a phosphite ester bond or a phosphonic acid ester bond with an oxidizing agent, wherein the oxidizing agent is a compound represented by formula (I) (excluding 2,2-dipyridyl disulfide) (the definition of the symbols in the formula is as described in the specification). JPEG2026110729000086.jpg844