GB1203200A - Apparatus for the production of polyurethane bun - Google Patents

Apparatus for the production of polyurethane bun

Info

Publication number
GB1203200A
GB1203200A GB01948/70A GB1194870A GB1203200A GB 1203200 A GB1203200 A GB 1203200A GB 01948/70 A GB01948/70 A GB 01948/70A GB 1194870 A GB1194870 A GB 1194870A GB 1203200 A GB1203200 A GB 1203200A
Authority
GB
United Kingdom
Prior art keywords
delivering
delivery
walls
mass transfer
component
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
GB01948/70A
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.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn 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 Upjohn Co filed Critical Upjohn Co
Publication of GB1203200A publication Critical patent/GB1203200A/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
    • 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
    • B29C44/467—Foam spreading or levelling devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1,203,200. Moulding polyurethane foams. UPJOHN CO. 11 Aug., 1967 [13 Sept., 1966], No. 11948/70. Divided out of 1,201,619. Heading B5A. The subject matter of this Specification is substantially the same as that described in Specification 1,201,619 but the claims are concerned with an apparatus for the continuous production of polyurethane bun comprising a tunnel mould with a movable wall or walls, means for driving the wall or walls and means for continuously delivering a liquid foam mix to the entry of the mould, the delivering means including separate adjustable means for delivering to the mixing unit a resin component, an isocyanate component, and a blowing agent, and means for monitoring and indicating the mass transfer rate of delivery of each component. Preferably the mass transfer rates are digitally computed and indicated by a method wherein each delivery means includes a pump, the monitoring means including means for deriving a signal in the form of a train of discrete electrical impulses dependent upon the delivery rate of a respective pump.
GB01948/70A 1966-09-13 1967-08-11 Apparatus for the production of polyurethane bun Expired GB1203200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57905366A 1966-09-13 1966-09-13

Publications (1)

Publication Number Publication Date
GB1203200A true GB1203200A (en) 1970-08-26

Family

ID=24315389

Family Applications (2)

Application Number Title Priority Date Filing Date
GB01948/70A Expired GB1203200A (en) 1966-09-13 1967-08-11 Apparatus for the production of polyurethane bun
GB36935/67A Expired GB1201619A (en) 1966-09-13 1967-08-11 Apparatus for the production of polyurethane foam

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB36935/67A Expired GB1201619A (en) 1966-09-13 1967-08-11 Apparatus for the production of polyurethane foam

Country Status (3)

Country Link
JP (2) JPS5018027B1 (en)
DE (1) DE1729077B2 (en)
GB (2) GB1203200A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006681A1 (en) * 1985-05-03 1986-11-20 Johannes Zimmer Method for applying a foam material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900024949A1 (en) * 2019-12-20 2021-06-20 Cannon Spa METHOD AND EQUIPMENT FOR DELIVERING A SPLIT-FREE POLYMER BLEND

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986006681A1 (en) * 1985-05-03 1986-11-20 Johannes Zimmer Method for applying a foam material

Also Published As

Publication number Publication date
JPS5018027B1 (en) 1975-06-25
DE1729077A1 (en) 1972-11-09
JPS5241304B1 (en) 1977-10-18
DE1729077B2 (en) 1974-07-25
GB1201619A (en) 1970-08-12

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years