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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Apparatus and method for multi-layer injection molding

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29G-045/16   
미국특허분류(USC) 425/130; 425/563; 425/566; 425/573
출원번호 US-0274443 (1999-03-22)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    McDonnell Boehnen Hulbert & Berghoff
인용정보 피인용 횟수 : 10  인용 특허 : 103
초록
▼

An injection molding apparatus and method for multi-layer molding of preforms and closures has a central melt channel, an annular melt channel radially spaced from the central melt channel, and an annular ring channel surrounding the central melt channel. The central melt channel has a first portion for flow of a first material, a second portion for flow of the first material and a second material, and a flow extension connecting the first portion and the second portion. The flow extension has a flow opening in communication with the annular ring channel...

대표
청구항
▼

1. An injection molding apparatus for multi-layer molding comprising: a central melt channel having a first portion for flow of a first material, a second portion for flow of the first material and a second material, a flow extension connecting the first portion and the second portion, the flow extension having a flow opening, and at least a portion of the central melt channel being in a nozzle and in communication with a front opening in the nozzle; an annular ring channel around the central melt channel for flow of the second material, the annular ...

이 특허에 인용된 특허 (103)

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이 특허를 인용한 특허 피인용횟수: 10

  1. Babin, Denis; Gammon, Scott. Coinjection hot runner injection molding system. USP2016119498911.
  2. Ten, Valery; Fairy, Fabrice. Coinjection hot runner injection molding system. USP2014068753102.
  3. Ten, Valery; Fairy, Fabrice; Babin, Denis; Gammon, Scott. Coinjection hot runner injection molding system. USP2015079073246.
  4. Takeuchi, Yasuhiko; Yamazaki, Minoru; Shimizu, Kouichi. Hot runner nozzle and mold for forming multi-layer molded article using the same. USP2016079381689.
  5. Kim,Worl yong; Kim,Sun woo; Lee,Eon seok. Injection mold having shearing flow making part. USP2008107442021.
  6. Hosokoshiyama, Hiroshi; Chiba, Junichi; Watanabe, Yosuke. Injection molding process of a preform for use in biaxial stretching and blow molding. USP2018019862157.
  7. Etoh, Makoto; Goto, Hiroaki; Kikuchi, Atsushi. Multi-layer structure and method of producing the same. USP2014038673197.
  8. Lau, Kwong Fat; Chan, Siu Ming; You, Qiang; Liu, Kim Kwong Henry; Xu, Zhijiang. Position adjusting means for hot runner nozzles, adjusting method and use thereof. USP2012098273284.
  9. Chiba, Junichi; Shimizu, Kazuhiko; Hosokoshiyama, Hiroshi. Preform extrusion molding apparatus, method for extrusion molding and preform. USP2018059956707.
  10. Lai,Yat Kwong; Matysek,Paul. Two position double injection molding apparatus. USP2007057210917.

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