THERMOSETTING RESIN COMPOSITION, CURED PRODUCT AND LAMINATE

• Main Authors: ASANO YOSUKE, ICHIHARA YUTO, KOSUGE HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 24.12.2020
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

To provide a thermosetting resin composition capable of obtaining a cured film excellent in abrasion resistance, and a method for producing a cured film formed of the composition.SOLUTION: A thermosetting resin composition contains a melamine resin (A) at least a part of which is ethyl-etherified or butyl-etherified, polyol (P) containing low molecular polyol (C) having a hydroxyl value of 150 mgKOH/g or more and a number average molecular weight of 62-800, and at least one curing catalyst (D) selected from the group consisting of a Lewis acid catalyst composed of cation composed of metal having electronegativity of Pauling of 1.61-1.90 and counter anion that is a deprotonation body of a proton acid having an acid dissociation constant pKa of 2.0 or less, and a proton acid having an acid dissociation constant pKa of 2.0 or less, in which the content of the (C) is 30 pts.mass or more with respect to 100 pts.mass of the (P), and a solid content mass ratio (A)/(P) is within a range of 99/1 to 35/65.SELECTED DRAWING: None 【課題】耐摩耗性に優れた硬化膜を得ることのできる熱硬化性樹脂組成物、および該組成物からなる硬化膜の製造方法を提供すること。【解決手段】少なくとも一部がエチルエーテル化もしくはブチルエーテル化されたメラミン樹脂（Ａ）と、水酸基価が１５０ｍｇＫＯＨ／ｇ以上かつ数平均分子量が６２〜８００の低分子ポリオール（Ｃ）を含むポリオール（Ｐ）と、Ｐａｕｌｉｎｇの電気陰性度が１．６１〜１．９０の金属からなるカチオンと酸解離定数ｐＫａが２．０以下のプロトン酸の脱プロトン化体である対アニオンとからなるルイス酸触媒および酸解離定数ｐＫａが２．０以下のプロトン酸からなる群より選ばれる少なくとも１種の硬化触媒（Ｄ）とを含み、前記（Ｃ）の含有量が前記（Ｐ）１００質量部に対して３０質量部以上であり、固形分質量比（Ａ）／（Ｐ）が９９／１〜３５／６５の範囲である熱硬化性樹脂組成物。【選択図】なし