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1. WO2020067090 - RELEASE FILM FOR CERAMIC GREEN SHEET PRODUCTION

Publication Number WO/2020/067090
Publication Date 02.04.2020
International Application No. PCT/JP2019/037457
International Filing Date 25.09.2019
IPC
B28B 1/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
1Producing shaped articles from the material
30by applying the material on to a core, or other moulding surface to form a layer thereon
B32B 27/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
B32B 27/36 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
36comprising polyesters
CPC
B28B 1/30
BPERFORMING OPERATIONS; TRANSPORTING
28WORKING CEMENT, CLAY, OR STONE
BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
1Producing shaped ; prefabricated; articles from the material
30by applying the material on to a core or other moulding surface to form a layer thereon
B32B 27/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
B32B 27/36
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
36comprising polyesters
Applicants
  • 東洋紡株式会社 TOYOBO CO., LTD. [JP]/[JP]
Inventors
  • 松尾 有加 MATSUO Yuka
  • 寺田 明紀 TERADA Akinori
Priority Data
2018-18178327.09.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) RELEASE FILM FOR CERAMIC GREEN SHEET PRODUCTION
(FR) FILM ANTIADHÉSIF POUR PRODUCTION DE FEUILLE CRUE DE CÉRAMIQUE
(JA) セラミックグリーンシート製造用離型フィルム
Abstract
(EN)
[Problem] To provide a release film for ceramic green sheet formation, wherein the release film has excellent peeling properties and damage such as cracks is unlikely to occur in a half-cut test for ultra-thin ceramic green sheets formed therewith. [Solution] A release film for ceramic green sheet production in which a release layer is laminated onto at least one surface of a polyester film either directly or with another layer therebetween, the release layer being formed by curing a coating that includes at least an energy ray-curable compound (I), a polyester resin (II), and a release component (III), and the polyester resin (II) containing an ester structural unit derived from a 5-sodium sulfoisophthalic acid component.
(FR)
Le problème décrit par la présente invention est de fournir un film antiadhésif pour la production d'une feuille crue de céramique présentant d'excellentes propriétés de pelage et peu susceptible de présenter des dommages tels que des fissures dans un essai de demi-découpe pour des feuilles crues de céramique ultra-minces à mouler. La solution de l'invention porte sur un film antiadhésif présentant une couche antiadhésive stratifiée, directement ou par l'intermédiaire d'une autre couche, sur au moins une surface d'un film de polyester. La couche antiadhésive comprend un revêtement durci comprenant au moins un composé durcissable par rayonnement d'énergie (I), une résine de polyester (II) et un constituant antiadhésif (III). La résine de polyester (II) contient un motif constitutif d'ester dérivé d'un constituant acide 5-sulfo-isophtalique sodique.
(JA)
【課題】剥離性に優れ、成型される極薄のセラミックグリーンシートについて、ハーフカット試験におけるクラック等のダメージを生じ難いセラミックグリーンシート成型用離型フィルムを提供すること。 【解決手段】ポリエステルフィルムの少なくとも片面に直接又は他の層を介して離型層が積層された離型フィルムであって、前記離型層は、エネルギー線硬化型化合物(I)、ポリエステル樹脂(II)、及び離型成分(III)を少なくとも含む塗膜が硬化されてなり、 前記ポリエステル樹脂(II)が5-ナトリウムスルホイソフタル酸成分由来のエステル構成単位を含有するセラミックグリーンシート製造用離型フィルム。
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