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公开(公告)号：US3747797A
公开(公告)日：1973-07-24
申请号：US3747797D
申请日：1971-10-19
Applicant: ALUMINUM CO OF AMERICA
CPC classification number: B32B15/085 , B21D51/383 , B21D51/44 , B32B1/02 , B32B3/26 , B32B7/12 , B32B15/08 , B32B27/32 , B32B2311/00 , B32B2311/24 , B32B2323/04 , B32B2323/10 , B32B2439/00 , B65D17/4012 , B65D17/404 , B65D2517/0082
Abstract: A method of fabricating a laminated metal container wall provided with an opening device including providing a metal sheet having a layer of protective material secured thereto by means of an adhesive selected from the group consisting of epoxy, polyester and polyurethane. The protective material is selected from a group consisting of a copolymer of a polyolefin and ethylene and ionomers of polyolefin. A preferred form of copolymer has polypropylene as the polyolefin employed with the ethylene. A preferred polypropylene ethylene copolymer may have an ethylene content of about 2 to 10 percent. The laminated metal sheet is scored to define a removable sector therein. The scoring is preferably effected to such a depth as to provide residual metal along the score line of about 2 to 6 mils. Simultaneously with the scoring operation, reducing the thickness of the layer of protective material without penetrating entirely through the layer. The protective layer may have an initial thickness of about 1.5 to 4 mils and preferably about 2.5 to 3.5 mils. A laminated metal container wall having a score line defined removable sector. An adhesive material secured to one surface of the container wall. A continuous layer of protective material secured to the metal panel portion by means of the adhesive. The protective layer may have a thickness of about 1.5 to 4 mils and is selected from a group consisting of a copolymer and a polyolefin and ethylene and ionomers of polyolefins.
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Patent Agency Ranking
公开(公告)号：US3832963A
公开(公告)日：1974-09-03
申请号：US29660572
申请日：1972-10-11
Applicant: ALUMINUM CO OF AMERICA
CPC classification number: B21D51/44 , B21D51/383 , B32B15/08 , B65D17/4012
Abstract: A method of fabricating a container wall having an integral opening device by providing a metal sheet having an adhesive material secured to one surface thereof. The adhesive secures a continuous protective layer to the metal sheet. The protective layer is selected from the group consisting of partially crystalline polyolefin, partially crystalline polyolefin-ethylene copolymers, polyethylene acrylate and ionomers of polyolefin. Scoring the sheet to define a removable sector therein while preventing fracture of the adhesively secured protective layer. Subsequently heating the composite metal sheet to a temperature of about 275* to 375*F for a period of about 0.2 second to 4 minutes and preferably about 300* to 350*F for about 0.5 to 3 minutes. The protective layer is stress relieved by this thermal treatment which substantially completely eliminates microvoids established in the protective layer during the scoring operation. Effecting the heating operation in such a fashion as to improve adhesive bonding of the protective layer, resist diaphragming of the protective layer and reduce feathering of the protective layer along the line of severance when the removable sector is fractured. A container wall structure made by the process of this invention including the adhesive being selected from the group consisting of epoxy, polyester and polyurethane. The protective layer having a crystallinity in excess of about 50 percent. The adhesive bond between the protective layer and the metal sheet removable sector being of greater strength than the shear strength of the protective layer in regions underlying the score line to prevent substantial diaphragming and to limit feathering to less than about one thirty-second inch.
Abstract translation: 一种通过提供具有固定在其一个表面上的粘合剂材料的金属片来制造具有整体打开装置的容器壁的方法。 粘合剂将连续的保护层固定在金属片上。 保护层选自部分结晶聚烯烃，部分结晶聚烯烃 - 乙烯共聚物，聚乙烯丙烯酸酯和聚烯烃离聚物组成的组。 对片材进行刻痕以在其中限定可移除部分，同时防止粘合固定的保护层的断裂。 随后将复合金属板加热至约275℃至375°F的温度约0.2秒至4分钟，优选约300至350°F约0.5至3分钟。 该保护层是通过该热处理释放的应力，其基本上完全消除了在刻痕操作期间在保护层中建立的微空隙。 以改善保护层的粘合剂的方式实现加热操作，当可拆卸部分断裂时，防止保护层的隔离并减小保护层沿着切断线的羽化。
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公开(公告)号：US3735893A
公开(公告)日：1973-05-29
申请号：US3735893D
申请日：1971-10-19
Applicant: ALUMINUM CO OF AMERICA
IPC: B65D17/20
CPC classification number: B65D17/4011 , Y10S220/906
Abstract: A method of establishing a shielded container wall opening including providing a metal container wall panel having an adhesively bonded protective layer selected from the group consisting of polyolefin, copolymers of polyolefin-ethylene and ionomers of polyolefin. Providing a score line defined removable sector within the metal panel and an operating pull tab secured thereto. Thermally treating the container wall having the integral opening device at about 275* to 375*F for about 0.2 second to 4 minutes and preferably about 300* to 350*F for about 0.5 to 3 minutes. Operating the pull tab to initiate fracture of the score line and establish an opening in the container wall. Simultaneously elongating portions of the protective layer disposed in a generally underlying position with respect to the score line and severing the same to provide a shielding edge which is disposed protectively against the opening defining wall of the metal container wall panel. Feathering preferably including an average projection of about 0.002 to 0.010 inch beyond the metal opening defining wall.
Abstract translation: 一种建立屏蔽容器壁开口的方法，包括提供金属容器壁板，所述金属容器壁板具有选自聚烯烃，聚烯烃 - 乙烯和聚烯烃离聚物的共聚物的粘合保护层。 提供在金属面板内限定可移动扇区的刻痕线和固定到其上的操作拉片。 将具有整体打开装置的容器壁在约275°至375°F下热处理约0.2秒至4分钟，优选约300至350°F约0.5至3分钟。 操作拉片以开始刻痕线的断裂并在容器壁中建立开口。 将保护层的相对于刻痕线设置在大致下方位置的部分同时延伸，并将其切断，以提供保护性地抵靠金属容器壁板的开口限定壁设置的屏蔽边缘。 羽化优选地包括超过金属开口限定壁约0.002至0.010英寸的平均投影。
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公开(公告)号：US3762598A
公开(公告)日：1973-10-02
申请号：US3762598D
申请日：1971-10-19
Applicant: ALUMINUM CO OF AMERICA
CPC classification number: B32B15/085 , B21D51/383 , B21D51/44 , B32B1/02 , B32B7/12 , B32B15/08 , B32B27/32 , B32B2307/704 , B32B2311/00 , B32B2323/10 , B32B2439/00 , B65D17/4012 , Y10T156/1064
Abstract: A method of fabricating a container wall having an integral opening device by providing a metal sheet having an adhesive material secured to one surface thereof. The adhesive secures a continuous protective layer to the metal sheet. The protective layer is selected from the group consisting of partially crystalline polyolefin, partially crystalline polyolefin-ethylene copolymers, polyethylene acrylate and ionomers of polyolefin. Scoring the sheet to define a removable sector therein while preventing fracture of the adhesively secured protective layer. Subsequently heating the composite metal sheet to a temperature of about 275* to 375* F for a period of about 0.2 second to 4 minutes and preferably about 300* to 350* F for about 0.5 to 3 minutes. The protective layer is stress relieved by this thermal treatment which substantially completely eliminates microvoids established in the protective layer during the scoring operation. Effecting the heating operation in such a fashion as to improve adhesive bonding of the protective layer, resist diaphragming of the protective layer and reduce feathering of the protective layer along the line of severance when the removable sector is fractured. A container wall structure made by the process of this invention including the adhesive being selected from the group consisting of epoxy, polyester and polyurethane. The protective layer having a crystallinity in excess of about 50 percent. The adhesive bond between the protective layer and the metal sheet removable sector being of greater strength than the shear strength of the protective layer in regions underlying the score line to prevent substantial diaphragming and to limit feathering to less than about one-thirty-second inch.
Abstract translation: 一种通过提供具有固定在其一个表面上的粘合剂材料的金属片来制造具有整体打开装置的容器壁的方法。 粘合剂将连续的保护层固定在金属片上。 保护层选自部分结晶聚烯烃，部分结晶聚烯烃 - 乙烯共聚物，聚乙烯丙烯酸酯和聚烯烃离聚物组成的组。 对片材进行刻痕以在其中限定可移除部分，同时防止粘合固定的保护层的断裂。 随后将复合金属板加热至约275℃至375°F的温度约0.2秒至4分钟，优选约300至350°F约0.5至3分钟。 保护层是通过这种热处理释放的应力，其基本上完全消除了刻痕操作期间在保护层中建立的微孔。 以改善保护层的粘合剂的方式实现加热操作，当可拆卸部分断裂时，防止保护层的隔离并减小保护层沿着切断线的羽化。
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公开(公告)号：US3800395A
公开(公告)日：1974-04-02
申请号：US3800395D
申请日：1972-09-15
Applicant: ALUMINUM CO OF AMERICA
IPC: B23P17/00
CPC classification number: B65D17/4011 , Y10T29/4979 , Y10T29/49821 , Y10T225/12
Abstract: A method of establishing a shielded container wall opening including providing a metal container wall panel having an adhesively bonded protective layer selected from the group consisting of polyolefin copolymers of polyolefin-ethylene and ionomers of polyolefin. Providing a score line defined removable sector within the metal panel and an operating pull tab secured thereto. Thermally treating the container wall having the integral opening device at about 275* to 375*F for about 0.2 second to 4 minutes and preferably about 300 to 350*F for about 0.5 to 3 minutes. Operating the pull tab to initate fracture of the score line and establish an opening in the container wall. Simultaneously elongating portions of the protective layer disposed in a generally underlying position with respect to the score line and severing the same to provide a shielding edge which is disposed protectively against the opening defining wall of the metal container wall panel. Feathering preferably including an average projection of about .002 to .010 inch beyond the metal opening defining wall.
Abstract translation: 一种建立屏蔽容器壁开口的方法，包括提供金属容器壁板，该金属容器壁板具有选自聚烯烃 - 乙烯的聚烯烃共聚物和聚烯烃的离聚物的粘合保护层。 提供在金属面板内限定可移动扇区的刻痕线和固定到其上的操作拉片。 将具有整体打开装置的容器壁在约275°至375°F下热处理约0.2秒至4分钟，优选约300至350°F约0.5至3分钟。 操作拉片以开始刻痕线的断裂，并在容器壁上建立开口。 将保护层的相对于刻痕线设置在大致下方位置的部分同时延伸，并将其切断，以提供保护性地抵靠金属容器壁板的开口限定壁设置的屏蔽边缘。 羽化优选包括超过金属开口限定壁约0.002至0.010英寸的平均投影。
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公开(公告)号：US3753847A
公开(公告)日：1973-08-21
申请号：US3753847D
申请日：1971-01-07
Applicant: ALUMINUM CO OF AMERICA
IPC: B21D51/38 , B21D51/44 , B32B15/08 , B65D8/16 , B65D17/34 , B65D65/42 , B65D83/14 , B32B27/36 , B32B27/30 , B32B27/38
CPC classification number: B21D51/44 , B21D51/383 , B32B15/08 , B65D17/404 , Y10T156/1064 , Y10T428/15 , Y10T428/24612 , Y10T428/269
Abstract: A METHOD OF MANUFACTURING A LAMINATED METAL CONTAINER WALL HAVING AN INTEGRAL OPENING DEVICE. PROVIDING A METAL SHEET, COATING THE SHEET WITH AN ADHESIVE SELECTED FROM THE GROUP CONSISTING OF EPOXY POLYSTER AND POLYURETHANE AND SUBSEQUENTLY SECURING TO THE SHEET BY MEANS OF THE ADHESIVE A CONTINOUS LAYER OF BARRIER MATERIAL SELECTED FROM THE GROUP CONSISTING OF LOW DESITY POLYETHYLENE, HIGH DENSITY POLYETHLYENE AND CAST POLYPROPYENE. SUBSEQUENTLY SCORING SAID SHEET TO DEFINE A SEVERABLE AND/OR REMOVABLE SECTOR AND LEAVING RESIDUAL METALS ALONG THE SCORE LINE OF A THICKNESS OF ABOUT 0.002 TO 0.006 INCH. SIMULTANEOUSLY WITH THE SCORING OPERATION REDUCING THE THICKNESS OF THE BARRIER MATERIAL IN THE REGIONS UNDERLYING THE SCORING THROUGH COMPRESSIBLY ESTABLISHED FLOW WITHOUT PENETRATING ENTIRELY THROUGH THE LAYER. AN OUTER PROTECTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF A POLYESTER, POLYVINYLIDENE CHLORIDE, POLYVINYL CHLORIDE AND MEDIUM OR HIGH DENSITY POLYTHYLENE MAY BE CONTINUOUSLY SECURED TO THE BARIER MATERIAL A LAMINATED METAL CONTAINER WALL MADE BY THE ABOVE 0.002 METHOD HAVING A BARRIER MATERIAL THICKNESS OF ABOUT 0.002 TO 0.003 INCH IN THE PORTION NOT UNDERLYING THE SCORE LINE AND AREDUCE THICKNESS IN THE PORTION UNDERLYING THE SCORE LINE. THE BARRIER MATERIAL HAVING A CONTINUOUS PANEL COVERING STRUCTURE. AN OUTER PROTECTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF A POLYESTER, POLYVINYLIDENE CHLORIDE, POLYVINYL CHLORIDE AND MEDIUM OR HIGH DENSITY POLYETHYLENE SECURED TO THE BARRIER MATERIAL.
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