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Apparatus and method for multi-layer injection molding

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29G-045/16
출원번호 US-0274443 (1999-03-22)
발명자 / 주소
  • Gellert, Jobst U.
  • Babin, Denis L.
출원인 / 주소
  • Mold Masters Limited
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

대표청구항

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 e

이 특허에 인용된 특허 (103)

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이 특허를 인용한 특허 (10)

  1. Babin, Denis; Gammon, Scott, Coinjection hot runner injection molding system.
  2. Ten, Valery; Fairy, Fabrice, Coinjection hot runner injection molding system.
  3. Ten, Valery; Fairy, Fabrice; Babin, Denis; Gammon, Scott, Coinjection hot runner injection molding system.
  4. Takeuchi, Yasuhiko; Yamazaki, Minoru; Shimizu, Kouichi, Hot runner nozzle and mold for forming multi-layer molded article using the same.
  5. Kim,Worl yong; Kim,Sun woo; Lee,Eon seok, Injection mold having shearing flow making part.
  6. Hosokoshiyama, Hiroshi; Chiba, Junichi; Watanabe, Yosuke, Injection molding process of a preform for use in biaxial stretching and blow molding.
  7. Etoh, Makoto; Goto, Hiroaki; Kikuchi, Atsushi, Multi-layer structure and method of producing the same.
  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.
  9. Chiba, Junichi; Shimizu, Kazuhiko; Hosokoshiyama, Hiroshi, Preform extrusion molding apparatus, method for extrusion molding and preform.
  10. Lai,Yat Kwong; Matysek,Paul, Two position double injection molding apparatus.

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