IE872545L - A method for producing cellular PVC-plastic - Google Patents

A method for producing cellular PVC-plastic

Info

Publication number
IE872545L
IE872545L IE872545A IE254587A IE872545L IE 872545 L IE872545 L IE 872545L IE 872545 A IE872545 A IE 872545A IE 254587 A IE254587 A IE 254587A IE 872545 L IE872545 L IE 872545L
Authority
IE
Ireland
Prior art keywords
plastic
blowing agent
decomposed
vaporized
plastic mixture
Prior art date
Application number
IE872545A
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of IE872545L publication Critical patent/IE872545L/en

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
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • 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
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/046—Condition, form or state of moulded material or of the material to be shaped cellular or porous with closed cells

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)

Abstract

In a method for producing cellular plastic with closed cells, and containing polyvinylchloride, a chemical blowing agent, a stabilizer, and possibly other process controlling substances and additives, the plastic mixture is treated mechanically in a plastic treating machine, and is fed to this phase of treatment at a well gelatinized state with a chemical blowing agent which was finely distributed in the plastic mixture in connection with gelatinization, but is not decomposed/vaporized, or only decomposed/vaporized to a negligible extend. The plastic mixture is treated mechanically in the plastic treating machine at a temperature above the decomposition/vaporizing temperature of the blowing agent so that the latter is decomposed/vaporized while treatment occurs, at a pressure above the internal pressure of expansion in the decomposed/vaporized blowing agent, the plastic mixture after decomposition/vaporizing of the blowing agent being made to expand to the desired shape by reduction of the external pressure. [WO8801934A1]
IE872545A 1986-09-22 1987-09-21 A method for producing cellular PVC-plastic IE872545L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO863756A NO863756L (en) 1986-09-22 1986-09-22 METHOD FOR CELLPLAST PREPARATION.

Publications (1)

Publication Number Publication Date
IE872545L true IE872545L (en) 1988-03-22

Family

ID=19889226

Family Applications (1)

Application Number Title Priority Date Filing Date
IE872545A IE872545L (en) 1986-09-22 1987-09-21 A method for producing cellular PVC-plastic

Country Status (14)

Country Link
EP (1) EP0281609A1 (en)
JP (1) JPH01500812A (en)
CN (1) CN87106832A (en)
AU (1) AU7963187A (en)
BR (1) BR8707470A (en)
DK (1) DK279788A (en)
ES (1) ES2007112A6 (en)
FI (1) FI882379A (en)
GR (1) GR871448B (en)
IE (1) IE872545L (en)
NO (1) NO863756L (en)
PT (1) PT85761B (en)
WO (1) WO1988001934A1 (en)
ZA (1) ZA876985B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO178771C (en) * 1993-09-15 1996-05-29 Polynor Partners As Process for producing light cell plastic product with closed cells
US7763345B2 (en) 1999-12-14 2010-07-27 Mannington Mills, Inc. Thermoplastic planks and methods for making the same
US8028486B2 (en) 2001-07-27 2011-10-04 Valinge Innovation Ab Floor panel with sealing means
SE530653C2 (en) 2006-01-12 2008-07-29 Vaelinge Innovation Ab Moisture-proof floor board and floor with an elastic surface layer including a decorative groove
ITMI20061107A1 (en) * 2006-06-08 2007-12-09 Diab Int Ab FORMULATIONS FOR CELLULAR PRODUCTS OF EXPANDED POLYMER BASED ON POLIVINL CHLORIDE EXTENDED EXPANDED POLYMER CELL PRODUCTS IMPROVED BASED ON POLYVINYL CHLORIDE AND PROCESS FOR PRODUCING THESE EXPANDED IMPROVED POLYMER CELL PRODUCTS
NL2003019C2 (en) 2009-06-12 2010-12-15 4Sight Innovation Bv FLOOR PANEL AND FLOOR COVERAGE CONSISING OF MULTIPLE OF SUCH FLOOR PANELS.
US8197074B2 (en) * 2009-08-21 2012-06-12 Nite Glow Industries, Inc. Omnidirectionally reflective buoyant rope
US9957365B2 (en) * 2013-03-13 2018-05-01 Berry Plastics Corporation Cellular polymeric material
CN104974447A (en) * 2015-06-30 2015-10-14 苏州博利迈新材料科技有限公司 Polyvinyl chloride foam plastic and preparation method thereof
NL2018781B1 (en) 2017-04-26 2018-11-05 Innovations4Flooring Holding N V Panel and covering

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3160688A (en) * 1961-06-02 1964-12-08 Monsanto Co Extrusion process
US3436446A (en) * 1966-06-08 1969-04-01 Union Carbide Corp Molding of foamed thermoplastic articles
US3830901A (en) * 1968-09-09 1974-08-20 T Winstead Continuous process for extruding cellular thermoplastics
DE2500972A1 (en) * 1975-01-11 1976-07-15 Schloemann Siemag Ag Injection mouldings of thermoplastics with expansion agents - mixing head between plasticiser and buffer chamber improves product quality
DK183380A (en) * 1979-05-11 1980-11-12 Shinetsu Chemical Co PROCEDURE FOR THE PREPARATION OF FOAMED CELL BODY OF VINYL CHLORIDE BASE RESIN
US4415514A (en) * 1980-04-26 1983-11-15 Stamicarbon B.V. Method for the preparation of rigid polyvinyl chloride foams
US4323528A (en) * 1980-08-07 1982-04-06 Valcour Imprinted Papers, Inc. Method and apparatus for making large size, low density, elongated thermoplastic cellular bodies
US4401612A (en) * 1981-06-17 1983-08-30 The B. F. Goodrich Company Method and apparatus for extruding foam polymeric materials involving the use of an extrusion screw having spaced multiple flight mixing means thereon

Also Published As

Publication number Publication date
DK279788D0 (en) 1988-05-20
ZA876985B (en) 1988-03-21
BR8707470A (en) 1988-12-06
GR871448B (en) 1988-01-22
PT85761B (en) 1990-01-08
PT85761A (en) 1987-10-01
FI882379A0 (en) 1988-05-20
DK279788A (en) 1988-05-20
FI882379A (en) 1988-05-20
JPH01500812A (en) 1989-03-23
NO863756D0 (en) 1986-09-22
NO863756L (en) 1988-03-23
AU7963187A (en) 1988-04-07
EP0281609A1 (en) 1988-09-14
ES2007112A6 (en) 1989-06-01
WO1988001934A1 (en) 1988-03-24
CN87106832A (en) 1988-04-06

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