GB820265A - Apparatus for the manufacture of porous or homogeneous polyurethane plastics - Google Patents

Apparatus for the manufacture of porous or homogeneous polyurethane plastics

Info

Publication number
GB820265A
GB820265A GB14974/57A GB1497457A GB820265A GB 820265 A GB820265 A GB 820265A GB 14974/57 A GB14974/57 A GB 14974/57A GB 1497457 A GB1497457 A GB 1497457A GB 820265 A GB820265 A GB 820265A
Authority
GB
United Kingdom
Prior art keywords
mixing chamber
production
continuous stream
mixing head
mixing
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
GB14974/57A
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.)
Bayer AG
Original Assignee
Bayer 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
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB820265A publication Critical patent/GB820265A/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
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0895—Manufacture of polymers by continuous processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

<PICT:0820265/III/1> An apparatus for use in the production of polyurethane plastics comprises a mixing chamber 4, means for introducing into the mixing chamber a continuous stream of an organic compound having at least two reactive hydrogen atoms, means located adjacent to this continuous stream for injection into the mixing chamber and into the continuous stream measured amounts of the polyisocyanate or cross-linking agent and/or accelerator, a mixing head 10, pumping means to convey the mixture produced in the mixing chamber to the mixing head, means for injection into the mixture contained in the mixing head of measured amounts of the cross-linking agent and/or accelerator or the polyisocyanate and means for discharging the reactive mixture from the mixing head. The apparatus is suitable for use in the process of Specification 820,266, [Group IV (a)].ALSO:The invention comprises an apparatus for the production of polyurethanes, particularly by the process of Specification 820,266, the examples being the same as in that Specification.ALSO:The invention comprises an apparatus for the production of polyurethane foams, particularly by the process of Specification 820,266, the examples being the same as in that Specification.
GB14974/57A 1956-05-11 1957-05-10 Apparatus for the manufacture of porous or homogeneous polyurethane plastics Expired GB820265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE820265X 1956-05-11

Publications (1)

Publication Number Publication Date
GB820265A true GB820265A (en) 1959-09-16

Family

ID=6736602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14974/57A Expired GB820265A (en) 1956-05-11 1957-05-10 Apparatus for the manufacture of porous or homogeneous polyurethane plastics

Country Status (1)

Country Link
GB (1) GB820265A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693675A1 (en) * 1992-07-16 1994-01-21 Bayer Ag Device for preparing a fluid reaction mixture forming a massive or cellular plastic material.
US5453250A (en) * 1992-07-16 1995-09-26 Bayer Aktiengesellschaft Apparatus for the preparation of a flowable reaction mixture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693675A1 (en) * 1992-07-16 1994-01-21 Bayer Ag Device for preparing a fluid reaction mixture forming a massive or cellular plastic material.
US5453250A (en) * 1992-07-16 1995-09-26 Bayer Aktiengesellschaft Apparatus for the preparation of a flowable reaction mixture

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