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특허 상세정보

Process and mold for molding foamed plastic articles

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29D-027/00   
미국특허분류(USC) 264/455 ; 264/403 ; 264/51 ; 264/101
출원번호 US-0438377 (1982-11-01)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 36  인용 특허 : 10
초록

A method for forming foamed plastic articles which includes the steps of closing a mold; prepressurizing the mold cavity with gas to prevent premature diffusion of blowing gas from the material injected into the cavity; injecting a short shot of molten synthetic resin material containing a blowing agent into the cavity; venting a portion of the prepressurization gas during the injection step; and venting the remaining prepressurization gas from the mold cavity to a vacuum chamber means to allow expansion of the injected foamable resin material within the...

대표
청구항

A method of molding foamed articles by injecting a molten synthetic resin material with a foaming agent contained therein from an injection means, including one or more nozzle means, into a cavity of a mold means, the method comprising the steps of: closing the mold means; prepressurizing the mold cavity with gas so as to substantially prevent diffusion of the blowing gas produced from the foaming agent; injecting an amount of molten synthetic resin material containing a foaming agent into the cavity, the amount being insufficient to fill the cavity; ven...

이 특허에 인용된 특허 (10)

  1. Egli Ernst (Bischofszell CHX). Method and apparatus for injection molding foamed plastic articles using a pre-pressurized mold having fixed core member. USP1980064208368.
  2. Nagumo Tadashi (Kamakura JPX) Yasuike Akio (Yokohama JPX) Kataoka Hiroshi (Tokyo JPX). Method for injection molding thick-walled articles. USP1980104229395.
  3. Yasuike ; Akio ; Kataoka ; Hiroshi ; Toyouchi ; Kaoru. Method for producing foamed moldings from synthetic resin materials. USP1978124129635.
  4. Balevski Anguel Tonchev (Sofia BG) Nikolov Ivan Dimov (Sofia BG) Antonov Asparuh Mihailov (Sofia BG) Semerdjiev Stefan Georgiev (Sofia BG). Method of injection molding a thermoplastic article having a cellular core and integral skin involving use of reclaimed. USP1976063960996.
  5. Molbert, Robert A.. Method of injection molding expanded thermoplastics and articles produced thereby. USP1977064031176.
  6. Harris Wilford D. (Midland MI). Method of injection molding thermoplastic resinous products substantially free from sink marks, swirls and related blemi. USP1981104296055.
  7. Yasuike ; Akio ; Odagiri ; Tsutomu ; Toshiba Machine Co. Limited. Method of producing foamed thermoplastic resin articles having smooth and glossy surfaces free from swirl marks and hai. USP1978064096218.
  8. Balevski ; Angel Tonchev ; Nikolov ; Ivan Dimov ; Mateev ; Evgeni Hris tov ; Trifonov ; Todor Kostadinov ; Kojuharov ; Vassil Vladimirov. Method of producing molded parts with a smooth noncellular skin and a cellular core from foamable thermoplastic materia. USP1978054092385.
  9. Hayakawa Akifumi (Tokyo JPX) Aiba Akira (Kawasaki JPX) Orihara Eiki (Tokyo JPX) Fukushima Kiyoshi (Fujisawa JPX). Mould assembly for foam moulding of plastic materials. USP1979054153231.
  10. Olabisi Olagoke (Plainfield NJ). Structural foam molding process. USP1981034255368.

이 특허를 인용한 특허 피인용횟수: 36

  1. Sicilia, Roberto D.. Apparatus and method for actuation of injection molding shooting pots. USP2009077559756.
  2. Donald E. Weder ; Joseph G. Straeter ; William F. Straeter ; Frank Craig ; Michael J. King ; William C. Funk. Apparatus and method for automatically forming an article. USP2002076419617.
  3. Weder Donald E. ; Straeter Joseph G. ; Straeter William F. ; Craig Frank ; King Michael J. ; Funk William C.. Apparatus and method for automatically forming an article. USP2000056056679.
  4. Weder Donald E. ; Straeter Joseph G. ; Straeter William F. ; Craig Frank ; King Michael J. ; Funk William C.. Apparatus and method for automatically forming an article. USP2001046213926.
  5. Weder Donald E. ; Straeter Joseph G. ; Straeter William F. ; Craig Frank ; King Michael J. ; Funk William C.. Apparatus and method for automatically forming an article. USP1998085795281.
  6. Weder Donald E. ; Straeter Joseph G.. ; Straeter William F. ; Craig Frank ; King Michael J. ; Funk William C.. Apparatus and method for automatically forming an article. USP1999085944646.
  7. Weder, Donald E.; Straeter, Joseph G.; Straeter, William F.; Craig, Frank; King, Michael J.; Funk, William C.. Apparatus and method for automatically forming an article. USP2003086602173.
  8. Nakanishi Motoyasu,JPX. Apparatus for producing biodegradable resin foam. USP1998125849339.
  9. Baek, Hyung Min; Maguire, Patrick Daniel; Marpu, Amar. Battery assembly including structural foamed materials. USP2017129853263.
  10. Nakanishi Motoyasu (Fuji JPX). Biodegradable resin foam and method and apparatus for producing same. USP1997025602188.
  11. Nakanishi Motoyasu,JPX. Biodegradable resin foam and method and apparatus for producing same. USP2001056228898.
  12. Nakanishi, Motoyasu. Biodegradable resin foam and method and apparatus for producing same. USP2003096626654.
  13. Haraguchi, Hirokazu; Okumura, Masanori; Itabashi, Taichi; Igarashi, Masakazu. Foam molding mold and foam molding method. USP2015079085105.
  14. Oyola, Arnold; Zubiate, Brett; Whipple, Dale; Stand, Joseph A.; Didomenico, Robert; Kennefick, William H.; Flaherty, J. Christopher. Highly articulated probes with anti-twist link arrangement, methods of formation thereof, and methods of performing medical procedures. USP2017099757856.
  15. Zubiate, Brett; Oyola, Arnold; Whipple, Dale; Stand, Joseph A.; Didomenico, Robert; Kennefick, William H.; Flaherty, J. Christopher. Highly articulated probes with anti-twist link arrangement, methods of formation thereof, and methods of performing medical procedures. USP2017029572628.
  16. Stand, Joseph A.; Didomenico, Robert A.; Zubiate, Brett; Darisse, Ian J.; Flaherty, J. Christopher. Highly articulated robotic probes and methods of production and use of such probes. USP20190310238460.
  17. Stand, Joseph A.; Didomenico, Robert A.; Zubiate, Brett; Darisse, Ian J.; Flaherty, J. Christopher. Highly articulated robotic probes and methods of production and use of such probes. USP2015038992421.
  18. Vadala, Jr.,Joseph P.; Kishbaugh,Levi A.; Levesque,Kevin J.; Pierick,David E.. In-mold decorated articles and methods. USP2008047364677.
  19. Tokunou, Ryuichi. Injection molding machine and injection molding method. USP2016059346204.
  20. Pierick, David E.; Anderson, Jere R.; Cha, Sung W.; Chen, Liqin; Stevenson, James F.; Laing, Dana E.. Injection molding of polymeric material. USP2005046884823.
  21. Pierick,David E.; Anderson,Jere R.; Cha,Sung Woon; Chen,Liqin; Stevenson,James F.; Laing,Dana E.. Injection molding of polymeric material. USP2008047361294.
  22. Desmith, Brian L.; Mozer, Wilfried; Zawacki, Jeffrey R.. Interchangeable mold tooling. USP2012038128394.
  23. Darisse, Ian J.; Oyola, Arnold E.; Stand, Joseph A.; DiDomenico, Robert A.; Straface, Samuel F.; Flaherty, J. Christopher. Introduction devices for highly articulated robotic probes and methods of production and use of such probes. USP2017059649163.
  24. Johns, Albert D.; Milligan, Stephen K.; Sofronie, Mircea. Lightweight knockout for forming die assembly. USP2010127845935.
  25. Luk, Wai Ming. Method and system for remote exhaust emission measurement. USP2009067544943.
  26. Sicilia, Roberto D.. Method for actuation of injection molding shooting pots. USP2010117824596.
  27. Richters Franciscus Egbertus,NLX ; During Johannes,NLX ; Eidhof Andreas Bernardus,NLX ; Jagers Christiaan Antonius,NLX. Method for manufacturing a plastic board. USP2001026193916.
  28. Mozer, Wilfried; Desmith, Brian L.. Method of manufacture of a foamed core class “A” article. USP2011118048347.
  29. Zawacki, Jeffrey Russell; Mozer, Wilfried; Desmith, Brian Leonard. Molded thermoplastic articles. USP2010127846533.
  30. Zawacki, Jeffrey Russell; Mozer, Wilfried; Desmith, Brian Leonard. Molded thermoplastic articles. USP2012048153235.
  31. Reichental Abraham N. ; Shafir Alexander ; Bertram George T. ; Corliss James M.. On-demand production of foam cushions with defined three-dimensional geometry. USP1998075776510.
  32. Johns,Albert D.; Littlejohn,Mark B.; Zelinski,Thomas W.. Pressware die set with product ejectors at outer forming surfaces. USP2006077070729.
  33. Gehlsen, Mark David; Vall, David Loren; Albrecht, Bonnie Weiskopf. Reduced density foam articles and process for making. USP2003096623674.
  34. Anderson, Robert; Johnston, Gabriel; Darisse, Ian J.; Stand, Joseph A.; Bettencourt, Luis; Frangolis, Todd; Oyola, Arnold E.; Flaherty, J. Christopher. Stabilizing apparatus for highly articulated probes with link arrangement, methods of formation thereof, and methods of use thereof. USP2017119821477.
  35. Oyola, Arnold E.; Anderson, Robert; Johnston, Gabriel; Darisse, Ian J.; Stand, Joseph A.; Bettencourt, Luis; Frangolis, Todd; Flaherty, J. Christopher. Stabilizing apparatus for highly articulated probes with link arrangement, methods of formation thereof, and methods of use thereof. USP2016069364955.
  36. Oyola, Arnold; Stand, Joseph; Gilmartin, Kevin; Darisse, Ian; Didomenico, Robert; Flaherty, J. Christopher. Surgical positioning and support system. USP2018029901410.