FR2209602A1 - Mixing polyurethane foam in variable size vessel - enables reaction progress to be varied to suit different applications - Google Patents

Mixing polyurethane foam in variable size vessel - enables reaction progress to be varied to suit different applications

Info

Publication number
FR2209602A1
FR2209602A1 FR7343445A FR7343445A FR2209602A1 FR 2209602 A1 FR2209602 A1 FR 2209602A1 FR 7343445 A FR7343445 A FR 7343445A FR 7343445 A FR7343445 A FR 7343445A FR 2209602 A1 FR2209602 A1 FR 2209602A1
Authority
FR
France
Prior art keywords
varied
polyurethane foam
different applications
variable size
reaction progress
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
FR7343445A
Other languages
French (fr)
Other versions
FR2209602B3 (en
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of FR2209602A1 publication Critical patent/FR2209602A1/en
Application granted granted Critical
Publication of FR2209602B3 publication Critical patent/FR2209602B3/fr
Granted 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
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A mixer, esp. for polyurethane foam prodn., has a mixing chamber with several inlets for the constituents, and an outlet. The volume of the chamber can be varied between predetermined limits (esp. in ratio >=1:2), by applying pressure from outside the chamber onto a flexible diaphragm inside the chamber, thus reducing the volume.
FR7343445A 1972-12-07 1973-12-05 Mixing polyurethane foam in variable size vessel - enables reaction progress to be varied to suit different applications Granted FR2209602A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5650072 1972-12-07

Publications (2)

Publication Number Publication Date
FR2209602A1 true FR2209602A1 (en) 1974-07-05
FR2209602B3 FR2209602B3 (en) 1976-10-15

Family

ID=10476781

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7343445A Granted FR2209602A1 (en) 1972-12-07 1973-12-05 Mixing polyurethane foam in variable size vessel - enables reaction progress to be varied to suit different applications

Country Status (4)

Country Link
BE (1) BE808200A (en)
DE (1) DE2360891A1 (en)
FR (1) FR2209602A1 (en)
NL (1) NL7316664A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112619545A (en) * 2020-11-26 2021-04-09 郑来来 Device structure capable of freely adjusting variable ratio of wall coating

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111957A1 (en) * 1981-03-26 1982-10-07 Maschinenfabrik Hennecke Gmbh, 5090 Leverkusen DEVICE FOR PRODUCING A FOAM OR SOLID-FLOWABLE REACTION MIXTURE FROM AT LEAST TWO FLOWABLE COMPONENTS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112619545A (en) * 2020-11-26 2021-04-09 郑来来 Device structure capable of freely adjusting variable ratio of wall coating

Also Published As

Publication number Publication date
BE808200A (en) 1974-06-04
NL7316664A (en) 1974-06-11
DE2360891A1 (en) 1974-06-12
FR2209602B3 (en) 1976-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse