METHOD FOR SUPPRESSING DECREASE IN STRENGTH OF TWO-COLOR MOLDED ARTICLE, RESIN COMPOSITION FOR TWO-COLOR MOLDING, TWO-COLOR MOLDED ARTICLE AND METHOD FOR PRODUCING THE SAME

• Main Authors: FUKATSU HIROKI, ASAI YOSHIHIRO, GOSHIMA KAZUYA
• Format: Patent
• Language: English; Japanese
• Published: 01.03.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a method for suppressing a decrease in strength of a two-color molded article comprising a polycarbonate resin and a polybutylene terephthalate resin, and to provide a resin composition for two-color molding which can suppress a decrease in strength, a two-color molded article containing the resin composition, and a method for producing the same.SOLUTION: Provided is a method for suppressing a decrease in strength of a two-color molded article comprising a polycarbonate resin and a polybutylene terephthalate resin by adding a carbodiimide compound to the polybutylene terephthalate resin. Provided is a resin composition for two-color molding with a polycarbonate, the composition containing (A) a polybutylene terephthalate resin and (B) a carbodiimide compound.SELECTED DRAWING: None 【課題】ポリカーボネート樹脂とポリブチレンテレフタレート樹脂との二色成形品の強度の低下を抑制する方法を提供することを課題とする。本発明は、強度低下を抑制することができる二色成形用樹脂組成物、並びにその樹脂組成物を含む二色成形品及びその製造方法を提供することを課題とする。【解決手段】ポリブチレンテレフタレート樹脂にカルボジイミド化合物を加えることにより、ポリブチレンテレフタレート樹脂とポリカーボネート樹脂との二色成形品の強度低下を抑制する方法とする。（Ａ）ポリブチレンテレフタレート樹脂と（Ｂ）カルボジイミド化合物とを含む、ポリカーボネートとの二色成形用樹脂組成物とする。【選択図】なし