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    • 1. 发明授权
    • Hollow bottle and production method therefor
    • 中空瓶及其生产方法
    • US4174783A
    • 1979-11-20
    • US909007
    • 1978-05-24
    • Takashi AbeKazuo KudoKeiji Kazato
    • Takashi AbeKazuo KudoKeiji Kazato
    • B65D1/00B29B11/10B29C49/00B29C49/04B29C49/22B29C49/42B29C49/48B29C49/78B29C65/00B65D1/02B65D23/00
    • B65D1/0215B29C49/04B29C49/22B29C49/4817B29B2911/14646B29B2911/14713
    • A hollow bottle and the production method therefor. The hollow bottle of the invention is of multi-layer structure and has excellent chemical resistance and large fused adhesion strength in the pinch-off portion of the bottom. The inner layer of the bottle is made of polyamide resin and the depth of the joint groove formed in the inside surface of the inner layer in the pinch-off portion is 20% in depth as compared with the length of the pich-off portion, which portion is in a cross-sectionally tapered-off projection formed on the bottom of the bottle.In the production method of the present invention, after the multi-layer parison is extruded from dies, the lowermost end of the parison is closed and an inert gas is then blown into the parison, or the bottom of the parison is closed with blowing the inert gas. After the bottom of the parison is closed, it is transferred into a blow mold and blow molding is carried out, thereby forming a hollow bottle of the present invention.
    • 一种中空瓶及其生产方法。 本发明的中空瓶具有多层结构,在底部的夹断部分具有优异的耐化学性和较大的熔融粘合强度。 瓶子的内层由聚酰胺树脂制成,并且在夹断部分的内层的内表面中形成的接合槽的深度与脱毛部分的长度相比为20% 该部分处于形成在瓶底部的横截面渐缩的突出部分。 在本发明的制造方法中,从模具挤出多层型坯后,将型坯的最下端封闭,然后将惰性气体吹入型坯,或者将型坯的底部吹入 惰性气体。 在将型坯的底部关闭之后,将其转移到吹塑模具中并进行吹塑成型,从而形成本发明的中空瓶。