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특허 상세정보

Method of making a molded plastic container

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-049/66   
미국특허분류(USC) 264/028 ; 264/521 ; 264/526 ; 264/528 ; 264/904 ; 428/035.7 ; 428/036.92
출원번호 US-0587282 (1996-01-16)
발명자 / 주소
대리인 / 주소
    Timmons
인용정보 피인용 횟수 : 63  인용 특허 : 8
초록

A polyethylene terephthalate (PET) preform (11) having a capped cylindrical body (13), a threaded top and a collared neck (19) is preheated to soften the PET. The preform (11) is placed in a split mold (26) whose walls (27,29) are heated to a temperature between 150.degree. C. and 177.degree. C. A stretch rod (35) is inserted through the top of the preform (11), and stretches the preform (11) axially until the preform (11) is the length of the final product (49). The preform (11) is expanded using compressed ambient air, and is molded against the walls (...

대표
청구항

[ I claim:] [1.] A method of making a molded plastic container from a preform made from polyethylene terephthalate, comprising the following steps:a. preheating to soften the preform;b. inserting the preform into a split mold whose walls are heated to a temperature in the range of 130.degree. C. to 240.degree. C.;c. inserting a stuffer into the preform;d. injecting a first gas into the preform, thereby expanding and molding the preform against the walls of the mold, and holding pressure in the molded preform for a predetermined time;e. venting the first ...

이 특허를 인용한 특허 피인용횟수: 63

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