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GB2104900B - Urea-formaldehyde foam generation and apparatus therefor - Google Patents

Urea-formaldehyde foam generation and apparatus therefor

Info

Publication number
GB2104900B
GB2104900B GB08221105A GB8221105A GB2104900B GB 2104900 B GB2104900 B GB 2104900B GB 08221105 A GB08221105 A GB 08221105A GB 8221105 A GB8221105 A GB 8221105A GB 2104900 B GB2104900 B GB 2104900B
Authority
GB
United Kingdom
Prior art keywords
urea
apparatus therefor
foam generation
formaldehyde foam
formaldehyde
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
GB08221105A
Other versions
GB2104900A (en
Inventor
Heinz Mehesch
Frank Meyer
Wolfgang Cornely
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB2104900A publication Critical patent/GB2104900A/en
Application granted granted Critical
Publication of GB2104900B publication Critical patent/GB2104900B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08J2361/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08J2361/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
GB08221105A 1981-07-29 1982-07-21 Urea-formaldehyde foam generation and apparatus therefor Expired GB2104900B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813129813 DE3129813C2 (en) 1981-07-29 1981-07-29 Process for the formation of urea-formaldehyde foams

Publications (2)

Publication Number Publication Date
GB2104900A GB2104900A (en) 1983-03-16
GB2104900B true GB2104900B (en) 1985-01-03

Family

ID=6137940

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08221105A Expired GB2104900B (en) 1981-07-29 1982-07-21 Urea-formaldehyde foam generation and apparatus therefor

Country Status (4)

Country Link
BE (1) BE893960A (en)
DE (1) DE3129813C2 (en)
FR (1) FR2510589A1 (en)
GB (1) GB2104900B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545868C2 (en) * 1985-12-23 1994-03-10 Moser Gmbh Kuno Oral irrigator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3470115A (en) * 1965-08-27 1969-09-30 Allied Chem Process for making non-shrinking urea-formaldehyde foams
DE2057942A1 (en) * 1969-11-28 1971-06-16 Electrolux Ab Process for the production of foam bodies on the basis of urea-formaldehyde resins
AU499635B2 (en) * 1976-02-20 1979-04-26 Thapa Chemical Industry Co Ltd Material mixing apparatus
GB1550507A (en) * 1977-11-25 1979-08-15 Irkut Gnii Redkikh I Tsvet Met Method and apparatus for foaming ureaformaldehyde resin

Also Published As

Publication number Publication date
GB2104900A (en) 1983-03-16
FR2510589A1 (en) 1983-02-04
BE893960A (en) 1982-11-16
DE3129813C2 (en) 1983-12-29
DE3129813A1 (en) 1983-02-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee