CA917868A - Process for forming a stress-free article containing a depression from a polymer - Google Patents

Process for forming a stress-free article containing a depression from a polymer

Info

Publication number
CA917868A
CA917868A CA084603A CA84603A CA917868A CA 917868 A CA917868 A CA 917868A CA 084603 A CA084603 A CA 084603A CA 84603 A CA84603 A CA 84603A CA 917868 A CA917868 A CA 917868A
Authority
CA
Canada
Prior art keywords
depression
stress
polymer
forming
article containing
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
CA084603A
Inventor
J. Gross Robert
B. Duggins Ray
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of CA917868A publication Critical patent/CA917868A/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
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/28—Component parts, details or accessories; Auxiliary operations for applying pressure through the wall of an inflated bag or diaphragm
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006—Monomers or prepolymers
    • 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
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/50—Use of fluid pressure in molding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/78—Processes of molding using vacuum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/019—Flexible fluid pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/055—Polytetrafluoroethylene, i.e. PTFE

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
CA084603A 1969-07-09 1970-06-03 Process for forming a stress-free article containing a depression from a polymer Expired CA917868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84031769A 1969-07-09 1969-07-09

Publications (1)

Publication Number Publication Date
CA917868A true CA917868A (en) 1973-01-02

Family

ID=25282017

Family Applications (1)

Application Number Title Priority Date Filing Date
CA084603A Expired CA917868A (en) 1969-07-09 1970-06-03 Process for forming a stress-free article containing a depression from a polymer

Country Status (2)

Country Link
US (1) US3642975A (en)
CA (1) CA917868A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027723A (en) * 1975-01-20 1977-06-07 Precision Flexmold, Inc. Molding apparatus including a flexible mold for making articles having radially inwardly extending projections on an interior surface
US4105734A (en) * 1975-04-25 1978-08-08 Topla, Inc. Marble-patterned bathtub, basin or sink
US4224275A (en) * 1975-09-22 1980-09-23 National Can Corporation Process for making containers
US4327052A (en) * 1975-09-22 1982-04-27 National Can Corporation Process for making containers
US4265852A (en) * 1977-08-01 1981-05-05 National Can Coporation Process for forming a plastic article
US4250137A (en) * 1979-06-04 1981-02-10 Walter Riedler Process for preparing breast pads
US4475976A (en) * 1983-12-23 1984-10-09 The Boeing Company Method and apparatus for forming composite material articles
US4576776A (en) * 1984-08-13 1986-03-18 Boeing Commercial Airplane Company Flow forming of composite material
US4608220A (en) * 1984-12-20 1986-08-26 The Boeing Company Method of forming composite material articles
US5071338A (en) * 1987-09-08 1991-12-10 United Technologies Corporation Tool for forming complex composite articles
US4853057A (en) * 1988-01-20 1989-08-01 Hoffmann Allan C Method of making tennis balls or the like
US5484277A (en) * 1989-12-26 1996-01-16 Mcdonnell Douglas Corporation Mandreless molding system
US5229141A (en) * 1990-12-21 1993-07-20 Mozer Rudolph W Carbon fiber facsimile process
US5609439A (en) * 1992-03-06 1997-03-11 Kmg Kanal-Muller-Gruppe International Gmbh & Co. Kg Method of and apparatus for repairing and sealing junctions between mains and branch pipes
DE4230305A1 (en) * 1992-09-10 1994-03-17 Tetra Pak Gmbh Device for shaping the neck area on a plastic half-shell
US20060147655A1 (en) * 2001-07-25 2006-07-06 Lumicor Solid surface products
US6743327B2 (en) * 2001-07-25 2004-06-01 Schober, Inc. Solid surface products
US20040247801A1 (en) * 2001-07-25 2004-12-09 Dennis Schober Solid surface products
US20060046034A1 (en) * 2001-07-25 2006-03-02 Schober, Inc. Solid surface products
US20090286902A1 (en) * 2004-12-16 2009-11-19 Grasso Jr Louis P Cast Solid Surface Materials Manufactured From Polymers and Post-Consumer Waste Glass
US20080308659A1 (en) * 2004-12-16 2008-12-18 Grasso Jr Louis P Pozzolan Manufactured from Post-Consumer Waste Glass, Products Incorporating the Same, and Methods of Manufacturing the Same
CZ2005574A3 (en) 2005-09-14 2007-05-16 Fucík@Ivan Synthetic stone of high transparency, process for its manufacture and use
US7931220B2 (en) * 2008-05-15 2011-04-26 Empire Resource Recovery, Llc White pozzolan manufactured from post-consumer waste glass, products incorporating the same and methods of manufacturing the same

Also Published As

Publication number Publication date
US3642975A (en) 1972-02-15

Similar Documents

Publication Publication Date Title
CA917868A (en) Process for forming a stress-free article containing a depression from a polymer
CA946544A (en) Polymerization process
CA973308A (en) Process for metallizing plastics
CA926071A (en) Process for producing polymeric film
CA940758A (en) Process of making a plastic plate
CA912199A (en) Styrene polymerization process
CA930892A (en) Process for preparing abs-type polymers
CA830892A (en) Process for forming plastic containers
CA829398A (en) Process for polymerization
AU2078770A (en) Polymerisation process
CA830462A (en) Process for coating a carrier material
CA820373A (en) Polymerization process
CA829399A (en) Polymerization process
CA830011A (en) Polymerization process
CA829992A (en) Polymerization process
CA829401A (en) Polymerization process
CA924443A (en) Polymerization process
CA829397A (en) Polymerization process
CA947896A (en) Polymerization process
AU436321B2 (en) Polymerization process
CA829400A (en) Polymerization process
AU454479B2 (en) Polymerization process
AU456558B2 (en) Polymerization process
CA829396A (en) Polymerization process
CA815590A (en) Polymerization process