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1. 发明授权

EP1199324B1 Sealing gasket for closure and process for production of closure using the same 有权
标题翻译：用于密封的封闭件，和用于生产封闭件的方法具有这样的密封件
公开(公告)号：EP1199324B1
公开(公告)日：2003-09-03
申请号：EP01308831.5
申请日：2001-10-17
申请人： TOYO SEIKAN KAISHA LIMITED , NIPPON POLYURETHANE INDUSTRY CO. LTD.
发明人： Moriga, Toshinori , Yokota, Hiroei , Tsuchida, Toshihiko , Yano, Noriyoshi
IPC分类号： C08G18/79 , C08G18/73 , C08G18/75 , B65D53/06 , C09K3/10
CPC分类号： B65D53/06 , C08G18/6607 , C08G2190/00 , C09K3/1021 , Y10S215/04

2. 发明公开

EP1199324A1 Sealing gasket for closure and process for production of closure using the same 有权
标题翻译：用于密封的封闭件，和用于生产封闭件的方法具有这样的密封件
公开(公告)号：EP1199324A1
公开(公告)日：2002-04-24
申请号：EP01308831.5
申请日：2001-10-17
申请人： TOYO SEIKAN KAISHA LIMITED , NIPPON POLYURETHANE INDUSTRY CO. LTD.
发明人： Moriga, Toshinori , Yokota, Hiroei , Tsuchida, Toshihiko , Yano, Noriyoshi
IPC分类号： C08G18/79 , C08G18/73 , C08G18/75 , B65D53/06 , C09K3/10
CPC分类号： B65D53/06 , C08G18/6607 , C08G2190/00 , C09K3/1021 , Y10S215/04
摘要： A sealing gasket for closure, made of a polyurethane elastomer obtained by reacting the following (A) and (B):

(A) a polyisocyanate component having an isocyanate group content of 5 to 38% by weight and average 2 to 3 functional groups, obtained by modifying an aliphatic isocyanate and/or an alicyclic isocyanate, and
(B) a polyol component having a hydroxyl value of 20 to 350 mgKOH/g and average 2 to 3 functional groups; and a process for producing a closure using such a sealing gasket.

The closure sealing gasket made of a polyurethane elastomer, obtained by the present invention, when used for a closure (e.g. a metal closure of food container), resists yellowing by ultraviolet light, has a strength at least equal to those of sealing gaskets produced from an aromatic isocyanate and, moreover, excellent rubber properties, is low in dissolution in liquid foods contained in the food container, and promises sufficient sealability.
The process for producing a closure according to the present invention is high in productivity and can use the production facilities for other materials such as polyvinyl chloride resin and the like.
摘要翻译：为闭合的密封垫圈，由通过使下述（A）得到的聚氨酯弹性体和（B）的：（A），其具有在5％至38％的异氰酸酯基团含量（重量）和平均2至3个官能团的多异氰酸酯组分，通过修改在脂族异氰酸和/或脂环处的异氰酸酯，和（B）的多元醇组分具有20至350毫克KOH / g的羟基值和平均2至3个官能团获得的; 以及使用搜索的密封垫圈的封闭的方法。由聚氨酯弹性体的闭合密封垫圈，由本发明中，当为封闭用于获得（例如食品容器的金属封闭件），通过紫外光抵抗黄变，具有强度至少等于那些从制造密封垫片的芳香族异氰酸酯，并且更过来，优异的橡胶性能，是在包含在所述食品容器液体食品溶解低，并承诺充密封性。用于制造封闭gemäß到本发明的方法是在高生产率，并且可以使用所述生产设施的其它材料：如聚氯乙烯树脂等。

3. 发明授权

EP1182220B1 Method for producing a polyurethane sealing composition 有权
标题翻译：一种制备聚氨酯密封胶处理
公开(公告)号：EP1182220B1
公开(公告)日：2004-08-25
申请号：EP01304887.1
申请日：2001-06-05
申请人： NIPPON POLYURETHANE INDUSTRY CO. LTD.
发明人： Yokota, Hiroei , Nii, Sumito , Takata, Osamu
IPC分类号： C08G18/10 , C08G18/80 , C08L75/04
CPC分类号： C08G18/8074 , C08G18/10 , C08G2190/00 , C08L75/04 , C08G18/32

4. 发明公开

EP1182220A1 Polyurethane composition for sealing 有权
标题翻译： Verfahren zur Herstellung einer Polyurethan Dichtungsmasse
公开(公告)号：EP1182220A1
公开(公告)日：2002-02-27
申请号：EP01304887.1
申请日：2001-06-05
申请人： NIPPON POLYURETHANE INDUSTRY CO. LTD.
发明人： Yokota, Hiroei , Nii, Sumito , Takata, Osamu
IPC分类号： C08G18/10 , C08G18/80 , C08L75/04
CPC分类号： C08G18/8074 , C08G18/10 , C08G2190/00 , C08L75/04 , C08G18/32
摘要： A composition for production of cover packing, comprising:

(A) a blocked isocyanate,
(B) an active hydrogen group-containing compound having average two or more functional groups,
(C) an organic substance powder having an average particle diameter of 40 to 250 µm, and
(D) an inorganic substance powder having an average particle diameter of less than 40 µm; and a method for production of cover packing using the composition.

With this composition which is a one-pack type, curable composition, no apparatus for mixing the main material and the curing agent is required; by heating, dissociation of blocking agent and completion of reaction are allowed to take place simultaneously; and a cover packing superior in mechanical strength, etc. can be formed. Further with the composition, there is no need of using a high-performance, high-pressure pump or a mold of good sealing; curing takes place in several minutes after mixing at a mold temperature; the cured material is releasable from the mold despite of the small hardness; and superior discharging, lining and driplessness are obtained.
摘要翻译：一种用于制造覆盖填料的组合物，其包含：（A）封端异氰酸酯，（B）具有平均两个或更多个官能团的含活性氢基团的化合物，（C）平均粒径为40〜 250μm，（D）平均粒径小于40μm的无机物粉末; 以及使用该组合物生产覆盖填料的方法。使用这种单组分型可固化组合物的组合物，不需要用于混合主要材料和固化剂的装置; 通过加热，阻断剂的解离和反应完成同时进行; 并且可以形成机械强度等优异的盖板。此外，通过组成，不需要使用高性能的高压泵或具有良好密封性的模具; 固化在模具温度下混合后的几分钟内进行; 虽然固化材料硬度较小，但可以从模具中脱离出来; 并获得优异的排放，衬里和无水浸渍性。

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