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특허 상세정보

Gas-assisted two-shot injection molding process

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29D-022/00   
미국특허분류(USC) 264/513; 264/572
출원번호 US-0894761 (2001-06-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Warner Norcross & Judd LLP
인용정보 피인용 횟수 : 28  인용 특허 : 15
초록

A process for injection molding a composite of rigid thermoplastic and soft thermoplastic, the soft thermoplastic including a cavity established with pressurized assist gas or an assist liquid. The process includes the steps of: injecting a hard molten thermoplastic into a first mold chamber; injecting a soft molten thermoplastic into a second mold chamber; establishing communication between the first chamber and the second chamber so that the rigid thermoplastic and soft thermoplastic integrally bond; and injecting an assist fluid into the soft thermopl...

대표
청구항

1. A process for fluid-assist injection molding and composite article comprising the steps of: providing a mold; injecting a shot of hard thermoplastic resin in molten form into the mold; injecting a shot of soft thermoplastic resin in molten form into the mold, a first portion of the soft thermoplastic resin bonding to the hard thermoplastic resin, a second portion of the soft thermoplastic resin having a viscous interior; and injecting assist fluid into the heated viscous interior to establish a cavity in the second portion of the soft thermoplas...

이 특허에 인용된 특허 (15)

  1. Belcher Samuel L. (Cincinnati OH). Apparatus for making a hollow polyethylene terephthalate blow molded article with an integral external projection such a. USP1991024993931.
  2. Jackson Norman C. (Livonia MI) Henderson Jack V. (Bloomfield Hills MI) Angerstein Heinz (Farmington Hills MI). Body side molding and method. USP1995105456957.
  3. Hahn Thomas R. (Northville MI). Fan shroud attached air deflecting seal. USP1996105566954.
  4. Shah Suresh D. (Troy MI) Visconti Carl H. (Clarkston MI). Gas-assisted plastics injection molding with controlled melt flow and method of controlling melt flow. USP1996095558824.
  5. Eckardt Helmut,DEX ; Ehritt Jurgen,DEX ; Seuthe Alfons,DEX ; Gosdin Michael,DEX. Method and apparatus for producing plastic objects with solid sections and hollow sections. USP2000116143237.
  6. Friederich ; Ernst. Method for injection molding of hollow shaped bodies from thermoplastic resins. USP1978074101617.
  7. Nozaki Masahiro,JPX ; Nagata Tatsuhiko,JPX. Method for producing a weather strip for a motor vehicle. USP1998015711907.
  8. Salerno, Charles M.; Hamilton, Harold V.; Schubert, Dale W.. Method of coinjection molding of thermoplastic and thermoplastic elastomer. USP1983054385025.
  9. Belcher Samuel L. (Cincinnati OH). Method of making a hollow polyethylene terephthalate blow molded article with an integral external projection such as a. USP1991105057266.
  10. Warren William L. (Rte. 4-Steeleberry La. Charlotte NC 28208) Warren Mark V. (5808 Piney Top Dr. Charlotte NC 28208). Method of making a mounting disk for a floor polisher. USP1989054830807.
  11. Weaver William R. (Toledo OH). Method of making a windshield and leaf screen assembly. USP1988124792425.
  12. LeVeen Harry H. (800 Poly Pl. Brooklyn NY 11220) LeVeen Robert F. (122 S. 51st St. Omaha NE 68132). Molded hypodermic plunger with integral shaft and elastomeric head. USP1980054201209.
  13. Weaver William R. (Toledo OH). Molding apparatus for forming an integral windshield gasket and leaf screen assembly. USP1988104778366.
  14. Vande Kopple Richard (Belmont MI) Chittenden Ted W. (Grand Rapids MI) Toyota Tokumi (Grand Rapids MI) Allchin Gregory (Ada MI). Plastic vehicle cowling with integrally molded seal. USP1993105251954.
  15. Vecchiarino Luigi,ITX ; Siano Dante,ITX. Process for the manufacture of trim panels for motorvehicles. USP1998095799385.

이 특허를 인용한 특허 피인용횟수: 28

  1. Tschol, Armin; Schlüter, Carolin; Tretrop, Uwe; Hustedt, Siegfried Kurt Martin. Cleaning element for a toothbrush or the like. USP201309D688875.
  2. Suzuki, Akihiro; Kamiya, Kohji; Yamada, Tetsuro. Composite molded article and manufacturing method thereof. USP2015079073286.
  3. Vaniterson,John. Cowl grille structure with integral washer fluid channel. USP2006087093890.
  4. Bartfeld, Benjamin; Crawford, Jamieson W.; Ellis, Robert G.; Battles, Christopher A.; Handeland, Kenneth. Density phase separation device. USP2014068747781.
  5. Battles, Christopher A.; Newby, C. Mark. Density phase separation device. USP2016059333445.
  6. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; HIres, Gregory R.. Density phase separation device. USP2016069364828.
  7. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; Hires, Gregory R.. Density phase separation device. USP2018039919307.
  8. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; Hires, Gregory R.. Density phase separation device. USP2018039919309.
  9. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; Hires, Gregory R.. Density phase separation device. USP2017109802189.
  10. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; Hires, Gregory R.. Density phase separation device. USP2015048998000.
  11. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; Hires, Gregory R.. Density phase separation device. USP2014088794452.
  12. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; Hires, Gregory R.. Density phase separation device. USP2017089731290.
  13. Crawford, Jamieson W.; Attri, Ravi; Battles, Christopher A.; Bartfeld, Benjamin R.; Hires, Gregory R.. Density phase separation device. USP2015079079123.
  14. Crawford, Jamieson W.; Battles, Christopher A.. Density phase separation device. USP2018039919308.
  15. Felix, Shenika E.; Crawford, Jamieson W.; Battles, Christopher A.; Gram, Jes Tougaard. Density phase separation device. USP2017079700886.
  16. Felix, Shenika E.; Crawford, Jamieson W.; Battles, Christopher A.; Gram, Jes Tougaard. Density phase separation device. USP2013038394342.
  17. Felix, Shenika E.; Crawford, Jamieson W.; Battles, Christopher A.; Gram, Jes Tougaard. Density phase separation device. USP2016099452427.
  18. Newby, C. Mark; Battles, Christopher A.. Density phase separation device. USP2018049933344.
  19. Newby, C. Mark; Battles, Christopher A.. Density phase separation device. USP2017079714890.
  20. Newby, C. Mark; Battles, Christopher A.. Density phase separation device. USP2016059339741.
  21. Goral, David; Kafrawy, Adel; Polley, William F.; Thomas, Joseph R.. Gas assist molding of one-piece catheters. USP2004086779998.
  22. Kelly,Walter J.. Integrated motor vehicle cowl vent and seal. USP2008017316447.
  23. Losada, Robert J.; Nair, Arun U.. Mechanical separator for a biological fluid. USP2017079694359.
  24. Schoemann,Michael P.; Dry,Alan G.; Bunker,Dennis. Method of forming a vehicle component. USP2008057367103.
  25. Kong, Byung Seok. Mold and method for producing two-color injection-molded parts. USP2014108858219.
  26. Pauken, Junko K.; Haidous, Norman; Trapp, Martin Arthur; Parsons, Robert S.; Mullen, Gary D.. Molded assembly having a reduced tendency to squeak and a method of manufacturing the assembly. USP2012048153258.
  27. Kong, Byung Seok. System and method for two-shot molding crash pad. USP2010027662319.
  28. Schrader, Michael A.. Wiper lifter. USP2014028640298.