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1.发明授权COPOLYESTER RESIN AND POLYESTER FILM FOR COVERING METAL PLATES AND LAMINATED POLYESTER FILM COMPRISING SAME MADE INTO FILM 有权用于覆盖金属板的聚碳酸酯树脂和聚酯膜以及包含在膜中的层压聚酯膜
公开(公告)号：EP3018161B1
公开(公告)日：2018-02-28
申请号：EP13888760.9
申请日：2013-07-05
发明人： KIMIDUKA, Takashi , TAKEUCHI, Yuji , MATSUMURA, Junji , OKIMOTO, Masaya , KATSUMA, Keita , TOMURA, Hideaki , NAKATSUKA, Sadamu
CPC分类号： C09D167/02 , B32B15/09 , B32B27/36 , B32B2307/558 , B32B2439/66 , B65D1/12 , B65D25/14 , B65D25/34 , C08G63/183 , C08G63/199 , C08G63/78 , C09D167/08
摘要： Provided is a polyester resin having good film formability together with resisting film breakage (hair) and scraping (galling) in the drawing and ironing steps when applied to a polyester film for covering metal plates, and, as a film for the inner surfaces of metal cans, resisting corrosion of metal cans without damage to the film surface even if dropped or subjected to external shock (dented) after a product has been made by sealing contents inside a can. A copolyester resin characterized in including, as constituent units: 50-93 mass% of an ester oligomer (A) having a number-average molecular weight of 700 or lower, the ester oligomer (A) comprising a dicarboxylic acid unit (a1) containing 70 mol% or more of a terephthalic acid component and a diol unit (a2) containing 70 mol% or more of an ethylene glycol component; and 7-50 mass% of a polyester polyol (B) having a number-average molecular weight of 1500-3000, the polyester polyol (B) comprising a hydrogenated dimer acid unit (b1) and a 1,4-butanediol unit (b2).
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公开(公告)号：EP3689778A1
公开(公告)日：2020-08-05
申请号：EP18862701.2
申请日：2018-09-11
申请人： Daiwa Can Company
摘要： A package (1) includes: a film (11) including a crystalline stretched oriented film; and a breaking portion (13) provided in the film (11) and including one or more non-oriented portions (21a) formed by heating a part of the crystalline stretched oriented film (21) at a temperature equal to or higher than a melting point of the crystalline stretched oriented film (21) and facing each other with an oriented portion (21b) of the crystalline stretched oriented film (21) interposed therebetween.
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3.发明公开COPOLYESTER RESIN AND POLYESTER FILM FOR COVERING METAL PLATES AND LAMINATED POLYESTER FILM COMPRISING SAME MADE INTO FILM 有权聚酯和聚酯膜的金属板按照约定的保护正常工作层合聚酯薄膜覆盖和电影
公开(公告)号：EP3018161A1
公开(公告)日：2016-05-11
申请号：EP13888760.9
申请日：2013-07-05
发明人： KIMIDUKA, Takashi , TAKEUCHI, Yuji , MATSUMURA, Junji , OKIMOTO, Masaya , KATSUMA, Keita , TOMURA, Hideaki , NAKATSUKA, Sadamu
CPC分类号： C09D167/02 , B32B15/09 , B32B27/36 , B32B2307/558 , B32B2439/66 , B65D1/12 , B65D25/14 , B65D25/34 , C08G63/183 , C08G63/199 , C08G63/78 , C09D167/08
摘要： Provided is a polyester resin having good film formability together with resisting film breakage (hair) and scraping (galling) in the drawing and ironing steps when applied to a polyester film for covering metal plates, and, as a film for the inner surfaces of metal cans, resisting corrosion of metal cans without damage to the film surface even if dropped or subjected to external shock (dented) after a product has been made by sealing contents inside a can. A copolyester resin characterized in including, as constituent units: 50-93 mass% of an ester oligomer (A) having a number-average molecular weight of 700 or lower, the ester oligomer (A) comprising a dicarboxylic acid unit (a1) containing 70 mol% or more of a terephthalic acid component and a diol unit (a2) containing 70 mol% or more of an ethylene glycol component; and 7-50 mass% of a polyester polyol (B) having a number-average molecular weight of 1500-3000, the polyester polyol (B) comprising a hydrogenated dimer acid unit (b1) and a 1,4-butanediol unit (b2).
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