CA2297934A1 - Process for manufacturing moulded articles made of plastics, cellulose or wood pulp and provided with cavities - Google Patents

Process for manufacturing moulded articles made of plastics, cellulose or wood pulp and provided with cavities Download PDF

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Publication number
CA2297934A1
CA2297934A1 CA002297934A CA2297934A CA2297934A1 CA 2297934 A1 CA2297934 A1 CA 2297934A1 CA 002297934 A CA002297934 A CA 002297934A CA 2297934 A CA2297934 A CA 2297934A CA 2297934 A1 CA2297934 A1 CA 2297934A1
Authority
CA
Canada
Prior art keywords
gas
cavities
plastics
cellulose
creating
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.)
Granted
Application number
CA002297934A
Other languages
French (fr)
Other versions
CA2297934C (en
Inventor
Georg Michael Ickinger
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.)
Sulzer Chemtech AG
Original Assignee
Georg Michael Ickinger
Sulzer Chemtech Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3510564&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2297934(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Georg Michael Ickinger, Sulzer Chemtech Ag filed Critical Georg Michael Ickinger
Publication of CA2297934A1 publication Critical patent/CA2297934A1/en
Application granted granted Critical
Publication of CA2297934C publication Critical patent/CA2297934C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B29C44/18—Filling preformed cavities
    • B29C44/182—Filling flexible bags not having a particular shape
    • B29C44/184—Filling flexible bags not having a particular shape and inserting the bags into preformed cavities
    • B29C44/185—Starting the expansion after rupturing or dissolving the bag
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1003—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by separating laminae between spaced secured areas [e.g., honeycomb expanding]

Abstract

Process for manufacturing molded articles made of plastics, cellulose, pulp or wood fibers with cavities (9), in particular composite parts for light-weight construction, by means of tool parts (1,2), including the following process steps:
a) a matrix layer (5) is provided at pre-selected locations with inserts (7) containing gas-creating substances or blowing agents and b) these inserts (7) are activated to create gas in tool parts (1,2) and thus expand the matrix material.

Also disclosed are gas-creating insertion elements for use in said process and made of gas-creating blowing substances enclosed in gas-proof sheaths or inserted into the matrix material (5) in order to form locally limited areas.
This process allows the production of particularly light and at the same time solid tool parts, in particular composite parts for light-weight construction.
CA002297934A 1997-07-29 1998-07-29 Process for manufacturing moulded articles made of plastics, cellulose or wood pulp and provided with cavities Expired - Fee Related CA2297934C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT128497 1997-07-29
ATA1284/97 1997-07-29
PCT/DE1998/002205 WO1999006200A1 (en) 1997-07-29 1998-07-29 Process for manufacturing moulded articles made of plastics, cellulose or wood pulp and provided with cavities

Publications (2)

Publication Number Publication Date
CA2297934A1 true CA2297934A1 (en) 1999-02-11
CA2297934C CA2297934C (en) 2007-12-11

Family

ID=3510564

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002297934A Expired - Fee Related CA2297934C (en) 1997-07-29 1998-07-29 Process for manufacturing moulded articles made of plastics, cellulose or wood pulp and provided with cavities

Country Status (7)

Country Link
US (2) US6447627B1 (en)
EP (1) EP1009608A1 (en)
JP (1) JP2001512059A (en)
AU (1) AU9337498A (en)
CA (1) CA2297934C (en)
DE (1) DE19881053D2 (en)
WO (1) WO1999006200A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU755371B2 (en) * 1999-02-25 2002-12-12 Supracor, Inc. Saddle pad and method of making same
JP2002340280A (en) * 2001-05-18 2002-11-27 Jamco Corp Vacuum insulating block
DE10340608A1 (en) * 2003-08-29 2005-03-24 Infineon Technologies Ag Polymer formulation and method of making a dielectric layer
WO2006080833A1 (en) * 2005-01-31 2006-08-03 Fits Holding Bv Method of manufacturing a sandwich panel and a sandwich panel as such
US8636484B2 (en) * 2009-01-09 2014-01-28 Tom M. Simmons Bellows plungers having one or more helically extending features, pumps including such bellows plungers, and related methods
US20100178182A1 (en) * 2009-01-09 2010-07-15 Simmons Tom M Helical bellows, pump including same and method of bellows fabrication
EP2480407B1 (en) 2009-09-24 2013-08-07 Siegfried Berghammer Insulating molded part and method for the production thereof
US8361266B2 (en) * 2010-11-15 2013-01-29 Colchiesqui Alexandre Viana Layered molding process for producing three dimensional objects
AT516767B1 (en) * 2015-01-22 2017-01-15 Profeta Da Silva Alois Process for producing a fiber-matrix semifinished product
WO2018028791A1 (en) * 2016-08-11 2018-02-15 LIEMT, Rainer Method for producing a fibre matrix semi-finished product
WO2018200353A1 (en) 2017-04-24 2018-11-01 Rigidcore Group Llc Sheet material, mold, and methods of making and using the sheet material and mold
DE102018203726A1 (en) * 2018-03-13 2019-09-19 Bayerische Motoren Werke Aktiengesellschaft Method for producing a sandwich component
US11325281B2 (en) 2018-07-23 2022-05-10 Ut-Battelle, Llc Rapid manufacturing of tailored preforms

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3615972A (en) * 1967-04-28 1971-10-26 Dow Chemical Co Expansible thermoplastic polymer particles containing volatile fluid foaming agent and method of foaming the same
US4247586A (en) * 1979-07-16 1981-01-27 Morris Rochlin Noise reducing liner panels for vehicles
SE439599B (en) * 1981-01-14 1985-06-24 Kema Nord Ab WAY TO DRY AND EXPAND IN LIQUID DISPERSED, THERMOPLASTIC MICROSPHERES CONTAINING, VOLTABLE, LIQUID JEWELERY
DE3478211D1 (en) 1983-09-03 1989-06-22 Hennecke Gmbh Maschf Multiple nozzle for bringing together at least two free-flowing reactants forming plastic, in particular foamed plastic, in order to start the reaction by mixing, and method of operating said multiple nozzle
US4843104A (en) * 1987-03-19 1989-06-27 Pierce & Stevens Syntactic polymer foam compositions containing microsphere fillers
JPH02178012A (en) 1988-12-29 1990-07-11 Nissei Plastics Ind Co Injection mold assembly
US5244613A (en) * 1993-01-21 1993-09-14 Miles Inc. Process for the production of reinforced moldings and the resultant products
EP0679501A1 (en) 1994-03-14 1995-11-02 YMOS AKTIENGESELLSCHAFT Industrieprodukte Composite material with foamable core
JPH106363A (en) 1996-06-21 1998-01-13 Sunstar Inc Injection molding machine

Also Published As

Publication number Publication date
AU9337498A (en) 1999-02-22
CA2297934C (en) 2007-12-11
JP2001512059A (en) 2001-08-21
US6875298B2 (en) 2005-04-05
US6447627B1 (en) 2002-09-10
WO1999006200A1 (en) 1999-02-11
EP1009608A1 (en) 2000-06-21
US20020157758A1 (en) 2002-10-31
DE19881053D2 (en) 2000-07-06

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed