RESIN COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY SEPARATOR, SLURRY COMPOSITION, NON-AQUEOUS SECONDARY BATTERY SEPARATOR, AND NON-AQUEOUS SECONDARY BATTERY

To provide a resin composition for a non-aqueous secondary battery separator that has good storage stability of a slurry composition for a non-aqueous secondary battery separator, and in which a separator exhibits excellent heat resistance, adhesion and scratch resistance, and a non-aqueous secondar...

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Hauptverfasser: KOIKE TAKAAKI, FUJIKAWA DAISUKE, ZHANG AI-LING, SAKAI YOSHIYUKI, IMAZATO AKIKO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a resin composition for a non-aqueous secondary battery separator that has good storage stability of a slurry composition for a non-aqueous secondary battery separator, and in which a separator exhibits excellent heat resistance, adhesion and scratch resistance, and a non-aqueous secondary battery is excellent in battery characteristics.SOLUTION: A resin composition for a non-aqueous secondary battery separator contains an aqueous medium and a polymer (A), wherein the polymer (A) is a polymer of an ethylenically unsaturated monomer (a) mixture containing 40.0 to 99.8 mass% of an ethylenically unsaturated monomer (a-1) having an amide group, and 0.2 to 60.0 mass% of an ethylenically unsaturated monomer (a-2) having at least one functional group selected from the group consisting of an alkyl group having 8 or more carbon atoms, a styrenated phenyl group and an alkylene oxide group having 3 or more carbon atoms, and a hydrophilic group in one molecule, based on the total mass of the ethylenically unsaturated monomer (a).SELECTED DRAWING: None 【課題】非水二次電池セパレータ用スラリー組成物の保存安定性が良好であり、初期だけでなく、高温で長期保管した場合であっても、セパレータが優れた耐熱性、密着性及び耐察性を発現し、非水二次電池が電池特性に優れる非水二次電池セパレータ用樹脂組成物の提供を目的とする。【解決手段】水性媒体と重合体(A)を含有し、前記重合体(A)は、エチレン性不飽和単量体(a)の全質量を基準として、アミド基を有するエチレン性不飽和単量体(a-1)を40.0~99.8質量%、ならびに、1分子中に、炭素数8以上のアルキル基、スチレン化フェニル基、および炭素数3以上のアルキレンオキサイド基からなる群より選ばれる少なくとも1種の官能基と、親水性基とを有するエチレン性不飽和単量体(a-2)を0.2~60.0質量%含有するエチレン性不飽和単量体(a)混合物の重合体である非水二次電池セパレータ用樹脂組成物により解決される。【選択図】なし