RELEASE FILM FOR CERAMIC GREEN SHEET MANUFACTURING

• Main Authors: YOSHINO KENJI, SHIBATA YUSUKE, HORIKAWA RYO
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2018
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRICITY; 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; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE; WORKING-UP

PROBLEM TO BE SOLVED: To provide an excellent release film for ceramic green sheet manufacturing which is easy to rewind even if the ceramic green sheet is thinned and can prevent pinhole and uneven thickness.SOLUTION: The release film for ceramic green sheet manufacturing is as such: the base material is a polyester film that does not substantially contain particles, and said polyester film contains at least one kind chosen from polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate, polyethylenenaphthalate, and on one surface of said base material there is molded a release coating layer, and on another surface there is a slippery coating layer, which contains particles, and an average length (RSm) of roughness curve element of the slippery coating layer is at most 10 μm.SELECTED DRAWING: None 【課題】セラミックグリーンシートを薄膜化させた場合でも、良好な巻取り性と、ピンホールや部分的な厚みばらつき等の防止を両立させることができる優れたセラミックグリーンシート製造用離型フィルムを提供すること。【解決手段】粒子を実質的に含有していないポリエステルフィルムを基材とし、前記ポリエステルフィルムが、ポリエチレンテレフタレート、ポリプロピレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンナフタレートから選ばれる少なくとも１種を含むポリエステルフィルムであり、前記基材の一方の表面上に離型塗布層を有し、かつ、もう一方の表面上に粒子を含有する易滑塗布層を有し、易滑塗布層の粗さ曲線要素の平均長さ（ＲＳｍ）が１０μｍ以下であるセラミックグリーンシート製造用離型フィルム。【選択図】なし