Carbonate group-containing polyol, polyurethane resin composition, artificial film, and leather-like sheet

• Main Authors: SENDA KOSUKE, MATSUBARA RIKU
• Format: Patent
• Language: Chinese; English
• Published: 23.02.2024
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

The invention relates to a polyol containing a carbonate group, a polyurethane resin composition, an artificial coating film and a leather-like sheet. The purpose of the present invention is to provide a carbonate group-containing polyol which has low viscosity and excellent handling properties by reducing the viscosity of the polyol itself, contributes to a reduction in the amount of a solvent used in the production of a coating material or a polyurethane, and enables the production of a polyurethane having excellent low-temperature flexibility and wet heat resistance. A polyol containing a carbonate group, the polyol having a number average molecular weight of 300-10000 and having a prescribed structural unit (A), a prescribed structural unit (B), and a prescribed structural unit (C), the content of the structural unit (A) being 20-80 mass% with respect to the total mass of the structural units (A), (B), and (C). 一种含有碳酸酯基的多元醇、聚氨酯树脂组合物、人工覆膜和皮革样片材。提供一种含有碳酸酯基的多元醇，其通过降低多元醇自身的粘度，从而粘度低且处理性优异，有助于降低制造涂料、聚氨酯时的溶剂用量，并