FR2214722A1 - Rapid-setting aminoplast-formaldehyde resin foams - made from mixts contg resin, emulsifier, blowing agent and little water, by adding acids - Google Patents

Rapid-setting aminoplast-formaldehyde resin foams - made from mixts contg resin, emulsifier, blowing agent and little water, by adding acids

Info

Publication number
FR2214722A1
FR2214722A1 FR7401785A FR7401785A FR2214722A1 FR 2214722 A1 FR2214722 A1 FR 2214722A1 FR 7401785 A FR7401785 A FR 7401785A FR 7401785 A FR7401785 A FR 7401785A FR 2214722 A1 FR2214722 A1 FR 2214722A1
Authority
FR
France
Prior art keywords
resin
blowing agent
emulsifier
setting
blowing
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
FR7401785A
Other languages
French (fr)
Other versions
FR2214722B3 (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.)
PLASTIC TECH HOLDINGS Ltd
Original Assignee
PLASTIC TECH HOLDINGS 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 PLASTIC TECH HOLDINGS Ltd filed Critical PLASTIC TECH HOLDINGS Ltd
Publication of FR2214722A1 publication Critical patent/FR2214722A1/en
Application granted granted Critical
Publication of FR2214722B3 publication Critical patent/FR2214722B3/fr
Granted 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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/681—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water by addition of solid materials for removing an oily layer on water
    • 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
    • C08J2361/02—Condensation polymers of aldehydes or ketones only
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A resin, pref. urea-formaldehyde, with high viscosity and low solvent content, which either has a high pH or contains added alkali, is mixed with an emulsifier and a blowing agent and emulsified. An acid catalyst, opt. mixed with a blowing agent inert to acid, is then added, causing further reaction of the resin and the formaldehyde and an increase in temp. which causes blowing the occur. The resin, emulsifier and blowing agent are pref. emulsified for a long period before adding alkali, to cause some pre-polymsn without blowing, resulting in a less brittle foam. Setting of the foam occurs very quickly e.g in around 2s. The foams of carrying density can be used as impact-absorbing cushions, non-flammable building boards, fire-retardant separating walls, pipe insulation and for spraying on water surfaces as a barrier to contain oil pollution.
FR7401785A 1973-01-21 1974-01-18 Rapid-setting aminoplast-formaldehyde resin foams - made from mixts contg resin, emulsifier, blowing agent and little water, by adding acids Granted FR2214722A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4378973 1973-01-21

Publications (2)

Publication Number Publication Date
FR2214722A1 true FR2214722A1 (en) 1974-08-19
FR2214722B3 FR2214722B3 (en) 1976-11-05

Family

ID=10430316

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7401785A Granted FR2214722A1 (en) 1973-01-21 1974-01-18 Rapid-setting aminoplast-formaldehyde resin foams - made from mixts contg resin, emulsifier, blowing agent and little water, by adding acids

Country Status (2)

Country Link
FR (1) FR2214722A1 (en)
ZA (1) ZA74403B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007151C2 (en) 1979-02-26 1983-10-27 Mitsubishi Gas Chemical Co., Inc., Tokyo Process for the production of amino resin foam

Also Published As

Publication number Publication date
FR2214722B3 (en) 1976-11-05
ZA74403B (en) 1974-11-27

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Legal Events

Date Code Title Description
ST Notification of lapse