CA989127A - Scrapless forming of plastic articles - Google Patents

Scrapless forming of plastic articles

Info

Publication number
CA989127A
CA989127A CA134,858A CA134858A CA989127A CA 989127 A CA989127 A CA 989127A CA 134858 A CA134858 A CA 134858A CA 989127 A CA989127 A CA 989127A
Authority
CA
Canada
Prior art keywords
plastic articles
scrapless forming
scrapless
forming
articles
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA134,858A
Other languages
English (en)
Other versions
CA134858S (en
Inventor
Norbert L. Bradley
Kenneth J. Cleereman
Ritchie A. Wessling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of CA989127A publication Critical patent/CA989127A/en
Expired legal-status Critical Current

Links

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
    • 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
    • B29C51/02—Combined thermoforming and manufacture of the preform
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/16—Forging
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
    • B29K2023/0683—UHMWPE, i.e. ultra high molecular weight polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
CA134,858A 1971-03-01 1972-02-16 Scrapless forming of plastic articles Expired CA989127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11966971A 1971-03-01 1971-03-01

Publications (1)

Publication Number Publication Date
CA989127A true CA989127A (en) 1976-05-18

Family

ID=22385652

Family Applications (1)

Application Number Title Priority Date Filing Date
CA134,858A Expired CA989127A (en) 1971-03-01 1972-02-16 Scrapless forming of plastic articles

Country Status (8)

Country Link
JP (1) JPS552335B1 (fr)
BE (1) BE780018A (fr)
CA (1) CA989127A (fr)
DE (1) DE2209608C2 (fr)
FR (1) FR2128346B1 (fr)
GB (1) GB1378319A (fr)
IT (1) IT948784B (fr)
NL (1) NL167895C (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286000A (en) * 1979-10-25 1981-08-25 Ball Corporation Plastic preform
JPS61100422U (fr) * 1984-12-07 1986-06-26
US4898708A (en) * 1986-05-02 1990-02-06 Wheeling Stamping Company Method for shaping closed bottom of tubular container
GB2191730B (en) * 1986-06-18 1989-12-13 Wheeling Stamping Co Method of forming thermoplastic headed tubular containers
DE19542717C1 (de) * 1995-11-16 1997-03-20 Bernd Friemuth Verfahren und Vorrichtung zur Herstellung von gewölbten Schalen, insbesondere Verkaufsschalen, aus Polystyrol-Schaumstoff
EP1115569A4 (fr) * 1998-08-06 2007-08-08 Sig Combibloc Inc Contenants fabriques avec des structures stratifiees comportant une couche de mousse polymere
SE0002770D0 (sv) 2000-07-25 2000-07-25 Biomat System Ab a method of producing a body by adiabatic forming and the body produced
CN107326808A (zh) * 2017-07-14 2017-11-07 西申（上海）新材料科技有限公司 一种桥梁支座用等压烧结机抗压感应模具
CN107403668A (zh) * 2017-08-04 2017-11-28 镇江春环密封件集团有限公司 一种聚四氟乙烯薄膜成型模具

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99897C (fr) * 1956-06-21
NL107060C (fr) * 1957-06-21
NL232972A (fr) * 1957-11-08
GB1166381A (en) * 1966-02-03 1969-10-08 Shell Int Research Method of Forming a Thermoplastic Article.
US3488747A (en) * 1967-02-13 1970-01-06 Dow Chemical Co Impact rotational molding
DE1704144A1 (de) * 1967-07-14 1971-05-06 Kabel Metallwerke Ghh Verfahren und Vorrichtung zum Herstellen von Formkoerpern aus Polyamiden

Also Published As

Publication number Publication date
NL167895C (nl) 1982-02-16
NL167895B (nl) 1981-09-16
DE2209608C2 (de) 1982-11-04
GB1378319A (en) 1974-12-27
BE780018A (fr) 1972-08-29
NL7202727A (fr) 1972-09-05
IT948784B (it) 1973-06-11
FR2128346A1 (fr) 1972-10-20
FR2128346B1 (fr) 1975-10-24
JPS552335B1 (fr) 1980-01-19
DE2209608A1 (de) 1972-09-21

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