FR2404509A1 - Rotor chamber for mfg low density urea!-formaldehyde! resin foa - of simple construction and operation - Google Patents

Rotor chamber for mfg low density urea!-formaldehyde! resin foa - of simple construction and operation

Info

Publication number
FR2404509A1
FR2404509A1 FR7729638A FR7729638A FR2404509A1 FR 2404509 A1 FR2404509 A1 FR 2404509A1 FR 7729638 A FR7729638 A FR 7729638A FR 7729638 A FR7729638 A FR 7729638A FR 2404509 A1 FR2404509 A1 FR 2404509A1
Authority
FR
France
Prior art keywords
low density
mfg
resin
formaldehyde
foa
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
FR7729638A
Other languages
French (fr)
Other versions
FR2404509B1 (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.)
British Industrial Plastics Ltd
Original Assignee
British Industrial Plastics 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 British Industrial Plastics Ltd filed Critical British Industrial Plastics Ltd
Priority to FR7729638A priority Critical patent/FR2404509A1/en
Publication of FR2404509A1 publication Critical patent/FR2404509A1/en
Application granted granted Critical
Publication of FR2404509B1 publication Critical patent/FR2404509B1/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
    • B29B7/74—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
    • B29B7/7419—Mixing devices specially adapted for foamable substances with supply of gas with static or injector mixer elements
    • B29B7/7423—Mixing devices specially adapted for foamable substances with supply of gas with static or injector mixer elements preceded or followed by rotatable stirring device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B01F25/64—Pump mixers, i.e. mixing within a pump of the centrifugal-pump type, i.e. turbo-mixers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

An appts. for producing low density foams comprises a chamber contg. a centrifugal rotor turning about a vertical axis having >=1 radial paddle. Liq. reagents opt. partly preformed are introduced downwards on to the top of the rotor at or near its axis, and the mixed foam is discharged from the chamber via a tangential outlet. Used esp. for mfg. self-supporting urea-formaldehyde foams of low density, specifically 20 kg/m3 resin. The simplicity of construction and operation presents few variables which can alter or be altered to change the characteristics of the prod. foam.
FR7729638A 1977-10-03 1977-10-03 Rotor chamber for mfg low density urea!-formaldehyde! resin foa - of simple construction and operation Granted FR2404509A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7729638A FR2404509A1 (en) 1977-10-03 1977-10-03 Rotor chamber for mfg low density urea!-formaldehyde! resin foa - of simple construction and operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7729638A FR2404509A1 (en) 1977-10-03 1977-10-03 Rotor chamber for mfg low density urea!-formaldehyde! resin foa - of simple construction and operation

Publications (2)

Publication Number Publication Date
FR2404509A1 true FR2404509A1 (en) 1979-04-27
FR2404509B1 FR2404509B1 (en) 1980-05-16

Family

ID=9196026

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729638A Granted FR2404509A1 (en) 1977-10-03 1977-10-03 Rotor chamber for mfg low density urea!-formaldehyde! resin foa - of simple construction and operation

Country Status (1)

Country Link
FR (1) FR2404509A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112169611A (en) * 2020-09-29 2021-01-05 祁东县双桥粮食购销有限责任公司 Grease emulsification case

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1493151A (en) * 1966-08-25 1967-08-25 Basf Ag Equipment for the continuous preparation of foams based on synthetic resin, for example urea-formaldehyde condenstas
FR1512197A (en) * 1966-02-26 1968-02-02 Basf Ag Process and device for continuously manufacturing foams of curable synthetic resins, in particular urea-formaldehyde resins
GB1156913A (en) * 1965-05-28 1969-07-02 Silverson Machines Ltd Improvements in Mixing Devices
FR2347404A1 (en) * 1976-04-10 1977-11-04 British Industrial Plastics IMPROVEMENTS TO EXPANDED UREE-FORMALDEHYDE RESINS, ESPECIALLY FOR THERMAL INSULATION

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156913A (en) * 1965-05-28 1969-07-02 Silverson Machines Ltd Improvements in Mixing Devices
FR1512197A (en) * 1966-02-26 1968-02-02 Basf Ag Process and device for continuously manufacturing foams of curable synthetic resins, in particular urea-formaldehyde resins
FR1493151A (en) * 1966-08-25 1967-08-25 Basf Ag Equipment for the continuous preparation of foams based on synthetic resin, for example urea-formaldehyde condenstas
FR2347404A1 (en) * 1976-04-10 1977-11-04 British Industrial Plastics IMPROVEMENTS TO EXPANDED UREE-FORMALDEHYDE RESINS, ESPECIALLY FOR THERMAL INSULATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112169611A (en) * 2020-09-29 2021-01-05 祁东县双桥粮食购销有限责任公司 Grease emulsification case

Also Published As

Publication number Publication date
FR2404509B1 (en) 1980-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse