DK421884A - Fremgangsmaade og apparat til formstoebning af opskummelige formstoffer - Google Patents

Fremgangsmaade og apparat til formstoebning af opskummelige formstoffer Download PDF

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Publication number
DK421884A
DK421884A DK421884A DK421884A DK421884A DK 421884 A DK421884 A DK 421884A DK 421884 A DK421884 A DK 421884A DK 421884 A DK421884 A DK 421884A DK 421884 A DK421884 A DK 421884A
Authority
DK
Denmark
Prior art keywords
procedure
basic opening
basic
opening
Prior art date
Application number
DK421884A
Other languages
English (en)
Other versions
DK421884D0 (da
Inventor
Sherwood Glenn Benfield
Original Assignee
Polycast Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polycast Corp filed Critical Polycast Corp
Publication of DK421884D0 publication Critical patent/DK421884D0/da
Publication of DK421884A publication Critical patent/DK421884A/da

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1252—Removing portions of the preformed parts after the moulding step
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/68—Release sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Pinball Game Machines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
DK421884A 1983-01-10 1984-09-04 Fremgangsmaade og apparat til formstoebning af opskummelige formstoffer DK421884A (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US45684283A 1983-01-10 1983-01-10
US49882383A 1983-05-27 1983-05-27
PCT/US1983/002057 WO1984002682A1 (en) 1983-01-10 1983-12-27 Method and apparatus for molding

Publications (2)

Publication Number Publication Date
DK421884D0 DK421884D0 (da) 1984-09-04
DK421884A true DK421884A (da) 1984-09-04

Family

ID=27038384

Family Applications (1)

Application Number Title Priority Date Filing Date
DK421884A DK421884A (da) 1983-01-10 1984-09-04 Fremgangsmaade og apparat til formstoebning af opskummelige formstoffer

Country Status (10)

Country Link
EP (1) EP0131037A1 (da)
JP (1) JPS60500409A (da)
KR (1) KR840007379A (da)
DK (1) DK421884A (da)
ES (2) ES528686A0 (da)
FI (1) FI840074A0 (da)
IL (1) IL70613A0 (da)
NO (1) NO843546L (da)
PT (1) PT77935B (da)
WO (1) WO1984002682A1 (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071331A (en) * 1990-08-27 1991-12-10 Cabot Safety Corporation Mold for foam products
US5456586A (en) * 1993-07-07 1995-10-10 Carson; Scott Apparatus for manufacturing articles made of polyurethane

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127457A (en) * 1960-11-18 1964-03-31 Du Pont Method of molding a polyurethane foam in a mold having an improved release agent
US3248758A (en) * 1964-05-15 1966-05-03 Gen Electric Mold for the manufacture of polyurethane foam articles
US3576930A (en) * 1970-04-20 1971-04-27 Goodyear Tire & Rubber Method of preparing molded articles

Also Published As

Publication number Publication date
FI840074A0 (fi) 1984-01-09
ES8504013A1 (es) 1985-05-01
PT77935A (en) 1984-02-01
EP0131037A1 (en) 1985-01-16
DK421884D0 (da) 1984-09-04
PT77935B (en) 1986-04-16
WO1984002682A1 (en) 1984-07-19
NO843546L (no) 1984-09-06
KR840007379A (ko) 1984-12-07
JPS60500409A (ja) 1985-03-28
ES528686A0 (es) 1985-05-01
ES539896A0 (es) 1986-04-01
ES8605181A1 (es) 1986-04-01
IL70613A0 (en) 1984-04-30

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment