EP0473742A1 - Mousses aminoplastiques stables et leur procede de fabrication - Google Patents

Mousses aminoplastiques stables et leur procede de fabrication

Info

Publication number
EP0473742A1
EP0473742A1 EP91905115A EP91905115A EP0473742A1 EP 0473742 A1 EP0473742 A1 EP 0473742A1 EP 91905115 A EP91905115 A EP 91905115A EP 91905115 A EP91905115 A EP 91905115A EP 0473742 A1 EP0473742 A1 EP 0473742A1
Authority
EP
European Patent Office
Prior art keywords
component
foam
polyalcohol
foaming agent
aminoplast
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.)
Withdrawn
Application number
EP91905115A
Other languages
German (de)
English (en)
Inventor
Karl J. MÄDER
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.)
IDC System AG
Original Assignee
IDC System AG
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 IDC System AG filed Critical IDC System AG
Publication of EP0473742A1 publication Critical patent/EP0473742A1/fr
Withdrawn legal-status Critical Current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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/05—Alcohols; Metal alcoholates
    • C08K5/053—Polyhydroxylic alcohols
    • 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

Definitions

  • the invention relates to stable, non-shrinking, possibly fire-resistant and / or emission-free amino plastic foams and processes for their production * from urea-formaldehyde resin condensate (hereinafter referred to as "amino resin precondensate”) and a curing agent foam agent and amino resin precondensate components and curing agent foam component for the production such foams.
  • amino resin precondensate urea-formaldehyde resin condensate
  • curing agent foam agent and amino resin precondensate components and curing agent foam component for the production such foams for the production such foams.
  • Aminoplast resin foams have been in use for decades. However, these foams, for example as cavity fillers in building construction, have been subject to limits to date, in particular because of their lack of stability, their strong shrinkage and their undesirable emission of formaldehyde. This is mainly due to the fact that previously obtained laboratory results could not be transferred to the place of consumption (see e.g. DIN 18159, part 2, where 4th shrinkage is permitted). Furthermore, the together * slopes of the shrinkage behavior, which are linked to the release behavior of formaldehyde, unsatisfactorily resolved. That is why aminoplast foams in building construction have been almost completely displaced from the market in recent years.
  • polyhydric alcohols such as, for example, polyethylene glycol, diethylene glycol, sorbitol, etc.
  • polyethylene glycol diethylene glycol
  • sorbitol sorbitol
  • the use of these, presumably molecular chain-stabilizing, alcohols is limited by the proportions. Excess alcohols reduce the fire resistance of the foam. In order to maintain fire resistance, attempts have been made to counteract excess alcohol by adding, for example, reaction products of ortho-boric acid.
  • boric acid esters made it possible to improve the resin quality or foam quality, but the products were still not completely satisfactory. (DE-PS 2,542,471).
  • An object of the present invention is to provide aminoplast foams with optimal stability with a large volume and low weight. Another object of the present invention is the procurement of low-shrinkage and / or emission-free aminoplast foams.
  • stable in the context of the present invention refers to the foam's resistance to decay.
  • low-shrinkage means a linear shrinkage of less than 4, preferably less than 1, under standard conditions in the tree trade. and most preferably at most 0.2 I.
  • Emission-free here means foams which have no perceptible odor of for aldehye during and after curing.
  • the Harzvorkonden ⁇ is satches together with known polyhydric alcohols a Halo ⁇ genetically (preferably bromine) - alkylene polyol added, for example 1,4-dibromo-2-buten-1,4-diol.
  • the alkylene group of these polyols includes unsaturated olefin groups with one or more double bonds.
  • aminoplast foams can be used to achieve stability of hitherto unknown. Protolytic reactions due to physical external influences on the fully cured foam are completely eliminated under normal conditions.
  • Suitable aminoplast precondensate solutions are those which can be prepared in a known manner and by reacting urea and formaldehyde in a molar ratio of 1: 1.25 to 1: 2.5, preferably 1: 2, at about pH 4 to 6 in about 30 to 70% aqueous solution available products.
  • the resin precondensates obtained with a content of about 50 to 40 percent by weight solids are preferably suitable. Such products are commercially available or can be easily manufactured in a known manner.
  • the fire resistance does not play a major role and the shrinkage is unimportant, e.g.
  • commercially available urea-formaldehyde precondensates can be reacted with the foaming agent hardeners added according to the invention.
  • inorganic and organic acids are suitable as hardeners. It is advantageous to use 85% aqueous phosphoric acid, only a part of the amount customary hitherto being required.
  • the inorganic acid content for curing is only 1/4 to 1/3 of the conventional amounts that were previously necessary for curing an aminoplast resin.
  • the surface tension of the foaming agent can be influenced in a targeted manner with the amount of added polyethylene glycol. Polyethylene glycol is a further factor in the construction of the foam structure and, at the same time, acts as a shrinkage reducer in relatively small percentages. Polyethylene glycols of different molecular weights can be used as required.
  • the foams obtained according to the invention are suitable for numerous applications, such as filler material in building construction, in the agricultural sector, where foaming is advantageously carried out at the workplace, as cover foams, where a thin layer of foam, thanks to its stability, leads to the desired sealing, as well as oil absorption, especially for crude * oil absorption and the like. They are biodegradable. Since they are almost completely porous, excellent Oelability ⁇ can be achieved within a very short time, which is at Oelun ton any kind of great convenience.
  • This solution is suitable for the production of an aminoplast foam with a very good stability by adding a commercially available ' aminoplast pre-condensate solution (BASF), for example in a system as described in CH-PS 584.104.
  • BASF ' aminoplast pre-condensate solution
  • the biodegradable foam obtained in this way is excellently suitable for oil adsorption, for covering landfills and in agriculture.
  • Example 2 Foam agent hardener solution The quality, constancy of stability and the stability of the foams are further improved if the components mentioned in Example 1 have 1.5 parts by weight of a C- t ⁇ -C 6? "Fatty alcohol is added, which is esterified with part of the dodecylbenzenesulfonic acid. Processed with known amino resin precondensates or with a solution according to Example 3, they are suitable in building construction and result in hone
  • BASF aminoplast precondensate solution
  • Example 2 In a system according to CH-PS 584.104, the solutions obtained in Example 2 and Example 3 were processed in a ratio of 1: 2 to 1: 5 to give a fire-resistant foam which had the following properties.
  • the mean weight loss of the four samples was 0.425 g per sample.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Des mousses aminoplastiques stables, exemptes d'émission, à faible retrait, à l'épreuve du feu, sont obtenues grâce à l'utilisation d'un polyalcool halogéné, insaturé, dans le composant précondensat de résine, et un à un acide dodécylbenzolsulfonique partiellement estérifié de préférence avec un alcool gras et un alcool à plusieurs valences à chaîne longue, de préférence un polyéthylène-glycol, dans le composant durcisseur-agent moussant. Les mousses ainsi obtenues conviennent particulièrement aux travaux du bâtiment et de recouvrement, ainsi qu'au secteur agraire et à l'absorption de l'huile. Pour certaines des applications précitées, le composant précondensat de résine selon l'invention ou le composant durcisseur-agent moussant selon l'invention peuvent être traités respectivement avec un composant durcisseur-agent moussant classique ou un composant précondensat de résine classique.
EP91905115A 1990-03-22 1991-03-18 Mousses aminoplastiques stables et leur procede de fabrication Withdrawn EP0473742A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH95490 1990-03-22
CH954/90 1990-03-22

Publications (1)

Publication Number Publication Date
EP0473742A1 true EP0473742A1 (fr) 1992-03-11

Family

ID=4199042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91905115A Withdrawn EP0473742A1 (fr) 1990-03-22 1991-03-18 Mousses aminoplastiques stables et leur procede de fabrication

Country Status (10)

Country Link
US (1) US5190985A (fr)
EP (1) EP0473742A1 (fr)
JP (1) JPH05500532A (fr)
AU (1) AU650260B2 (fr)
CA (1) CA2058302A1 (fr)
FI (1) FI915493A0 (fr)
HU (1) HUT60306A (fr)
NO (1) NO914518L (fr)
RU (1) RU2088605C1 (fr)
WO (1) WO1991014731A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7629043B2 (en) 2003-12-22 2009-12-08 Kimberly-Clark Worldwide, Inc. Multi purpose cleaning product including a foam and a web
US7331087B2 (en) * 2003-12-22 2008-02-19 Kimberly-Clark Worldwide, Inc. Activatable fastening system and web having elevated regions and functional material members
US20060000043A1 (en) * 2004-07-02 2006-01-05 Fung Jou-Chen Cleaning product for storing and attaching cleaning blocks or wipes
US7608070B2 (en) * 2004-09-30 2009-10-27 Kimberly-Clark Worldwide, Inc. Foam-based fasteners
US20060229229A1 (en) * 2005-04-11 2006-10-12 Kimberly-Clark Worldwide, Inc. Cleaning composite
US7690069B2 (en) 2005-12-14 2010-04-06 Kimberly-Clark Worldwide, Inc. Cleaning tool with attachment projections providing additional cleaning functionalities
US20070166488A1 (en) * 2006-01-19 2007-07-19 Trefethren Susan M Cleaning composite comprising lines of frangibility

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542471A (en) * 1946-06-15 1951-02-20 Standard Oil Dev Co Removal of peroxides from cracked gasoline by catalytic hydrogenation
DE1054232B (de) * 1956-03-29 1959-04-02 Basf Ag Verfahren zur Herstellung von Schaumstoffen
US3414526A (en) * 1964-03-13 1968-12-03 Allied Chem Flame-retardant, nonshrinking ureaformaldehyde foams
US3919166A (en) * 1972-05-31 1975-11-11 Gaf Corp Fire retardant polyurethanes and polyurea-urethanes having improved processability and color stability
GB1470953A (en) * 1973-01-26 1977-04-21 Ici Ltd Thermal insulation in wall cavities
CH584104A5 (fr) * 1975-08-19 1977-01-31 Idc Chemie Ag
DE2542471C3 (de) * 1975-09-24 1979-03-15 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung schwundarmer Schaumstoffe aus härtbaren Aminoplastkondensaten
US4225680A (en) * 1979-08-06 1980-09-30 Borden, Inc. Urea formaldehyde foam with low shrinkage
DE3007151C2 (de) * 1979-02-26 1983-10-27 Mitsubishi Gas Chemical Co., Inc., Tokyo Verfahren zur Herstellung von Aminoharzschaum
US4511678A (en) * 1979-04-17 1985-04-16 Basf Aktiengesellschaft Resilient foam based on a melamine-formaldehyde condensate
DE3308237A1 (de) * 1983-03-09 1984-09-20 Schaum-Chemie W. Bauer GmbH & Co KG, 4300 Essen Verfahren zur herstellung eines formaldehydarmen harnstoff-formaldehyd-kombinations-schaumes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9114731A1 *

Also Published As

Publication number Publication date
WO1991014731A1 (fr) 1991-10-03
HUT60306A (en) 1992-08-28
RU2088605C1 (ru) 1997-08-27
JPH05500532A (ja) 1993-02-04
FI915493A0 (fi) 1991-11-21
US5190985A (en) 1993-03-02
NO914518L (no) 1991-11-21
NO914518D0 (no) 1991-11-19
CA2058302A1 (fr) 1991-09-23
AU650260B2 (en) 1994-06-16
AU7443091A (en) 1991-10-21
HU913647D0 (en) 1992-07-28

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