CH535272A - Process for the production of urea-formaldehyde foams - Google Patents

Process for the production of urea-formaldehyde foams

Info

Publication number
CH535272A
CH535272A CH1076870A CH1076870A CH535272A CH 535272 A CH535272 A CH 535272A CH 1076870 A CH1076870 A CH 1076870A CH 1076870 A CH1076870 A CH 1076870A CH 535272 A CH535272 A CH 535272A
Authority
CH
Switzerland
Prior art keywords
urea
production
formaldehyde foams
foams
formaldehyde
Prior art date
Application number
CH1076870A
Other languages
German (de)
Inventor
Henry Ogden Dennis
Original Assignee
British Industrial Plastics
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 filed Critical British Industrial Plastics
Publication of CH535272A publication Critical patent/CH535272A/en

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
    • B29B7/7419—Mixing devices specially adapted for foamable substances with supply of gas with static or injector mixer elements
    • 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
CH1076870A 1969-07-17 1970-07-15 Process for the production of urea-formaldehyde foams CH535272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3606969 1969-07-17

Publications (1)

Publication Number Publication Date
CH535272A true CH535272A (en) 1973-03-31

Family

ID=10384606

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1076870A CH535272A (en) 1969-07-17 1970-07-15 Process for the production of urea-formaldehyde foams

Country Status (16)

Country Link
JP (1) JPS4833990B1 (en)
AT (1) AT315505B (en)
BE (1) BE753516A (en)
CH (1) CH535272A (en)
CS (1) CS162725B2 (en)
DE (1) DE2035595B2 (en)
DK (1) DK135952B (en)
ES (1) ES381943A1 (en)
FR (1) FR2102406A5 (en)
GB (1) GB1313103A (en)
IE (1) IE34363B1 (en)
IL (1) IL34855A (en)
NL (1) NL7010325A (en)
SE (1) SE375106B (en)
TR (1) TR16868A (en)
ZA (1) ZA704884B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1449824A (en) * 1973-03-23 1976-09-15 British Ind Plastics Ld Vehicle retardation
DE2440792C3 (en) * 1973-03-29 1981-05-07 Wilmsen, Jörg Michael, 4300 Essen Device for the continuous production of homogeneous, fine-pored synthetic resin foams on an aqueous or aqueous alcoholic basis
GB1582445A (en) * 1976-04-10 1981-01-07 British Industrial Plastics Urea-formaldehyde resin foams and apparatus for their production
DE2752311C3 (en) * 1977-11-23 1982-05-13 Irkutskij gosudarstvennyj naučno-issledovatel'skij institut redkich i cvetnych metallov (IRGIREDMET), Irkutsk Process for the production of foam and device for carrying out the process
CN111298321B (en) * 2020-03-25 2023-04-25 应急管理部天津消防研究所 Method and equipment for rapidly foaming and blocking treatment of leaked liquid on site

Also Published As

Publication number Publication date
IE34363B1 (en) 1975-04-16
BE753516A (en) 1970-12-16
GB1313103A (en) 1973-04-11
CS162725B2 (en) 1975-07-15
JPS4833990B1 (en) 1973-10-18
ES381943A1 (en) 1972-12-01
IL34855A (en) 1974-01-14
DK135952B (en) 1977-07-18
DE2035595B2 (en) 1978-11-23
ZA704884B (en) 1971-04-28
DE2035595A1 (en) 1972-01-05
IE34363L (en) 1971-01-17
TR16868A (en) 1973-09-01
AT315505B (en) 1974-05-27
SE375106B (en) 1975-04-07
IL34855A0 (en) 1970-09-17
NL7010325A (en) 1971-01-19
DK135952C (en) 1977-12-19
FR2102406A5 (en) 1972-04-07

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Legal Events

Date Code Title Description
PL Patent ceased