GB1460775A - Method of and apparatus for producing continuous surface elements - Google Patents

Method of and apparatus for producing continuous surface elements

Info

Publication number
GB1460775A
GB1460775A GB2433474A GB2433474A GB1460775A GB 1460775 A GB1460775 A GB 1460775A GB 2433474 A GB2433474 A GB 2433474A GB 2433474 A GB2433474 A GB 2433474A GB 1460775 A GB1460775 A GB 1460775A
Authority
GB
United Kingdom
Prior art keywords
gas
isocyanate
polyol
introducing
pumps
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
GB2433474A
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.)
Demag Kunststofftechnik Zweigniederlassung der Demag AG
Original Assignee
Demag Kunststofftechnik Zweigniederlassung der Demag 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
Priority claimed from DE2331241A external-priority patent/DE2331241A1/en
Application filed by Demag Kunststofftechnik Zweigniederlassung der Demag AG filed Critical Demag Kunststofftechnik Zweigniederlassung der Demag AG
Publication of GB1460775A publication Critical patent/GB1460775A/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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404—Mixing devices specially adapted for foamable substances
    • B29B7/7409—Mixing devices specially adapted for foamable substances with supply of gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7457—Mixing heads without moving stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7471—Mixers in which the mixing takes place at the inlet of a mould, e.g. mixing chambers situated in the mould opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7615—Mixers with stream-impingement mixing head characterised by arrangements for controlling, measuring or regulating, e.g. for feeding or proportioning the components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/76—Mixers with stream-impingement mixing head
    • B29B7/7631—Parts; Accessories
    • B29B7/7636—Construction of the feed orifices, bores, ports
    • B29B7/7642—Adjustable feed orifices, e.g. for controlling the rate of feeding
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2101/00—Manufacture of cellular products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1460775 Moulding polyurethane DEMAG KUNSTSTOFFTECHNIK GmbH 31 May 1974 [19 June 1973] 24334/74 Heading B5A [Also in Division C3] A method of moulding articles from crosslinked polyurethane made from a plurality of components including polyol, an isocyanate, and a blowing agent, comprises bringing the polyol and the isocyanate to a constant temperature of between 30 and 45‹ C., introducing a gas, e.g. air, nitrogen, or ammonia, into the polyol and the isocyanate in a proportion of 10 to 20 volume per cent of gas related to the total volume of liquid, mixing the components by spraying into a mixing chamber at elevated pressure, and introducing the mixture into a mould which is at a constant temperature of between 55 and 70‹C. In the apparatus, Fig. 1, storage containers 1 and 2 respectively, polyol and isocyanate and have circulating heaters 9, gas is introduced in the container 1 by discharging the heater 9 into the gas space. Metering pumps 13 and 23 feed the materials to mixing heads 17. Further metering pumps 33, 43 feed a blowing agent and accelerator to mixers 22, where they are mixed with the isocyanate, and together with the polyol are sprayed under elevated pressure into the mixer 17, and subsequently charged into moulds 5. Feed pumps 12 are dispersed upstream of the pumps 13, 23. Gas can be fed directly into line 10 after the pump 12. The gas can be introduced into the isocyanate. The blowing agent and accelerator can be introduced into the polyol. Figs. 2 and 3, not shown, illustrate alternative ways of introducing gas into the line 10.
GB2433474A 1973-06-19 1974-05-31 Method of and apparatus for producing continuous surface elements Expired GB1460775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2331241A DE2331241A1 (en) 1973-06-19 1973-06-19 METHOD AND DEVICE FOR MANUFACTURING MOLDED PARTS FROM PLASTICS MADE FROM SEVERAL COMPONENTS IN A CASTING FORM, IN WHICH THE COMPONENTS ARE MIXED WITH EACH OTHER BEFORE INTRODUCING INTO THE CASTING FORM

Publications (1)

Publication Number Publication Date
GB1460775A true GB1460775A (en) 1977-01-06

Family

ID=5884472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2433474A Expired GB1460775A (en) 1973-06-19 1974-05-31 Method of and apparatus for producing continuous surface elements

Country Status (6)

Country Link
AT (1) AT353472B (en)
CH (1) CH575285A5 (en)
FR (1) FR2241398B1 (en)
GB (1) GB1460775A (en)
IT (1) IT1014640B (en)
NL (1) NL7407160A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199837A (en) * 1987-01-15 1988-07-20 Garcia Don Jose Sanchis Producing foam articles
WO2016097994A1 (en) * 2014-12-17 2016-06-23 Fb Design S.R.L. System for simultaneous injection of a filling material in boats comprising a plurality of separate chambers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2440022C2 (en) * 1974-08-21 1982-07-08 Bayer Ag, 5090 Leverkusen Process for the production of insulating and lightweight building materials and device for carrying out this process
DE2543302C3 (en) * 1975-09-27 1979-10-11 5090 Leverkusen Process for producing reaction mixtures for the production of polyurethane foams and apparatus for carrying out the process
DE3244037A1 (en) * 1982-11-27 1984-05-30 Bayer Ag, 5090 Leverkusen METHOD AND DEVICE FOR PRODUCING A FLOWABLE, MIXTURE OF FLOWABLE COMPONENTS COMPRISING TO FOAM
DE102010000856A1 (en) * 2010-01-13 2011-07-14 Endress + Hauser GmbH + Co. KG, 79689 Casting system for manufacturing of casting compound, has multiple storage containers corresponding multiple components, where storage containers are filled with one of components
EP4311642A1 (en) * 2022-07-26 2024-01-31 Henkel AG & Co. KGaA Device for supplying a plastic material and method for dosing the plastic material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199837A (en) * 1987-01-15 1988-07-20 Garcia Don Jose Sanchis Producing foam articles
WO2016097994A1 (en) * 2014-12-17 2016-06-23 Fb Design S.R.L. System for simultaneous injection of a filling material in boats comprising a plurality of separate chambers
CN107107385A (en) * 2014-12-17 2017-08-29 Fb设计有限公司 For packing material to be injected to the system in the ship including multiple chambers separated simultaneously

Also Published As

Publication number Publication date
FR2241398A1 (en) 1975-03-21
AT353472B (en) 1979-11-12
ATA433374A (en) 1979-04-15
NL7407160A (en) 1974-12-23
FR2241398B1 (en) 1978-11-17
CH575285A5 (en) 1976-05-14
IT1014640B (en) 1977-04-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee