Method for production of stable polyoxymethylene copolymers (CPOM)

• Main Authors: MOELLER ANNA KARINA, HEITZ THOMAS, IN-GI CHO, DEMETER JURGEN
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention relates to a method for the deactivation of an acid catalyst during the production process of a polyoxymethylene copolymer (cPOM) by adding triisopropanolamine (tris(2-hydroxypropyl)amine) to a mixture which comprises the polyoxymethylene copolymer (cPOM) and the acid catalyst. 本发明涉及一种在聚甲醛共聚物(cPOM)的制备方法中通过将三异丙醇胺(三(2-羟丙基)胺)加入到包含聚甲醛共聚物(cPOM)和酸催化剂的混合物中使酸催化剂失活的方法。