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    • 10. 发明授权
    • Snap zipper and bag with the same
    • 扣拉链和袋子一样
    • US5603995A
    • 1997-02-18
    • US541822
    • 1995-10-10
    • Toyokazu TakuboKen-Ichi Tanaka
    • Toyokazu TakuboKen-Ichi Tanaka
    • A44B19/16B65D33/25B31B1/90
    • B65D33/2541A44B19/16Y10S206/81Y10T428/13Y10T428/215
    • A bag with a snap zipper according to the present invention has a bag body produced to cause the snap zipper to fuse via a portion for fusion to the bag body to a layer composed of a polyester type resin on the bag body. In the present invention, at least a portion in the snap zipper to be fused to the bag body is made of a material mainly composed of a polyester type elastomer or a polybutylene terephthalate (PBT) resin and that the resin of the portion for fusion has a bending modulus of elasticity of 10,000 kg/cm.sup.2 or below. At least its portion for fusion is made of a material having a composition including polyester type elastomer and a polyolefin type resin or polybutylene terephthalate (PBT) resin and a polyolefin type resin and that the content of the polyolefin type resin in the composition is 3 to 50% by weight. When the snap zipper is adapted to have a portion for fusing to the bag body and the male and female members, except the portion for fusion, the portion for fusion may be composed of a copolymer of ethylene and acrylic acid ester or a copolymer of ethylene and methacrylic acid ester.
    • 根据本发明的具有拉链的袋子具有袋体,该袋体产生使得卡扣拉链经由用于熔融的部分与袋体融合到由袋体上的聚酯型树脂构成的层。 在本发明中,要熔合到袋体的卡扣拉链中的至少一部分由主要由聚酯型弹性体或聚对苯二甲酸丁二醇酯(PBT)树脂构成的材料制成,并且熔融部分的树脂 弯曲弹性模量为10,000 kg / cm2以下。 至少其熔融部分由具有聚酯型弹性体和聚烯烃类树脂或聚对苯二甲酸丁二醇酯(PBT)树脂和聚烯烃类树脂的组合物的材料制成,并且组合物中聚烯烃类树脂的含量为3〜 50重量%。 当卡扣拉链适于具有用于熔合到袋体和阳和阴构件的部分,除了熔融部分之外,熔融部分可以由乙烯和丙烯酸酯的共聚物或乙烯的共聚物 和甲基丙烯酸酯。