POLYESTER RESIN COMPOSITION, POLYESTER FIBER, POLYESTER RESIN MOLDED ARTICLE, AND PROCESS FOR PRODUCTION OF NUCLEATING AGENT FOR POLYESTER RESIN

• Main Authors: KAWAMOTO Naoshi, TSUNEIZUMI Yota, URUSHIHARA Tsuyoshi
• Format: Patent
• Language: English; French; German
• Published: 19.07.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Provided is a polyester resin composition comprising a sulfonamide compound as a nucleating agent, in which polyester resin composition coloring is inhibited. The polyester resin composition according to the present invention is a polyester resin composition comprising, with respect to 100 parts by mass of a polyester resin, 0.01 to 30 parts by mass of a phosphorus-based antioxidant (A) and 0.1 to 30 parts by mass of a sulfonamide compound metal salt (B), wherein the sulfonamide compound metal salt (B) has a water content of 0.1% to 20% based on the mass ratio with respect to the sulfonamide compound metal salt and not higher than 3% based on the mass ratio with respect to the polyester resin composition.