DE4211129A1 - Shrinkage regulators for prodn. of polyurethane foam mouldings - consist of hydrocarbon(s), ketone(s) or ester(s) with flash point of at least 38 deg. C. - Google Patents

Shrinkage regulators for prodn. of polyurethane foam mouldings - consist of hydrocarbon(s), ketone(s) or ester(s) with flash point of at least 38 deg. C.

Info

Publication number
DE4211129A1
DE4211129A1 DE4211129A DE4211129A DE4211129A1 DE 4211129 A1 DE4211129 A1 DE 4211129A1 DE 4211129 A DE4211129 A DE 4211129A DE 4211129 A DE4211129 A DE 4211129A DE 4211129 A1 DE4211129 A1 DE 4211129A1
Authority
DE
Germany
Prior art keywords
shrinkage
additive according
changing additive
ester
ketone
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
DE4211129A
Other languages
German (de)
Other versions
DE4211129C2 (en
Inventor
Herbert Dipl Chem Dr Schaper
Horst Leitner
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.)
Plastal GmbH
Original Assignee
Phoenix 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 Phoenix AG filed Critical Phoenix AG
Priority to DE4211129A priority Critical patent/DE4211129C2/en
Publication of DE4211129A1 publication Critical patent/DE4211129A1/en
Application granted granted Critical
Publication of DE4211129C2 publication Critical patent/DE4211129C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C08J9/0014—Use of organic additives
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

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  • 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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Shrinkage regulators (I) based on hydrocarbons, carbonyl cpds., etc. with a flash pt. of at least 38 deg.C are claimed for use in the prodn. of foamed plastic mouldings, esp. from polyurethane (flexible-integral PU foam, PU-RIM and PU-RRIM). More specifically, (I) has a flash pt. not below 55 deg.C. (I) is a high b.pt. petroleum fraction, decahydronaphthalene, tetrahydronaphthalene, a ketone (esp. 2-octanone, 2-nonanone or methylcyclopent-2-en-1-one) or an ester (esp. cyclohexyl acetate or n-hexyl acetate). USE/ADVANTAGE - Addn. of (I) enables the shrinkage of PU mouldings, etc. to be adjusted e.g. if a CFC blowing agent is replaced by an environmentally acceptable substitute, then the original shrinkage can be reproduced by addn. of

Description

Es ist bekannt, daß bei der Herstellung von Polyurethan- Schaumstoffen (Kurzform PU oder PUR) als Treibmittel Halogenkohlenwasserstoffe, insbesondere Dichlordifluormethan, Trichlorfluormethan, Methylenchlorid und Trichlortrifluoräthan (DE-A-24 61 521, DE-C-28 19 037) sowie Benzin oder Ester (EP-A-03 17 801) eingesetzt werden.It is known that in the manufacture of polyurethane Foams (short form PU or PUR) as blowing agents Halogenated hydrocarbons, especially dichlorodifluoromethane, Trichlorofluoromethane, methylene chloride and trichlorotrifluoroethane (DE-A-24 61 521, DE-C-28 19 037) and gasoline or ester (EP-A-03 17 801) can be used.

In überraschender Weise hat sich nun herausgestellt, daß Kohlenwasserstoffe, Carbonylverbindungen oder dgl. mit Flammpunkten ≧ 38°C, insbesondere ≧ 55°C, als schrumpfändernde Zusätze (Schrumpfregulator) bei der Herstellung von Polyurethan-Schaumstoffen (PU-Weich-Integralschaum, PU-RIM, PU-RRIM) verwendbar sind, wobei insbesondere auf die zweckmäßigen Zusätze gemäß Ansprüche 3 bis 12 verwiesen wird. Die Flammpunkte folgender schrumpfändernder Zusätze sind:Surprisingly, it has now been found that Hydrocarbons, carbonyl compounds or the like with Flash points ≧ 38 ° C, especially ≧ 55 ° C, as shrink-changing Additives (shrink regulator) in the production of Polyurethane foams (PU soft integral foam, PU-RIM, PU-RRIM) can be used, with particular reference to the appropriate additives referred to claims 3 to 12 becomes. The flash points of the following shrink-changing additives are:

Decahydronaphthalin (59°C)
Tetrahydronaphthalin (77°C)
2-Octanon (56°C)
2-Nonanon (68°C)
Methyl-2-cyclopenten-1-on (65°C)
Essigsäure-cyclohexylester (58°C)
Essigsäure-n-hexylester (57°C)Decahydronaphthalene (59 ° C)
Tetrahydronaphthalene (77 ° C)
2-octanone (56 ° C)
2-nonanone (68 ° C)
Methyl-2-cyclopenten-1-one (65 ° C)
Cyclohexyl acetate (58 ° C)
N-hexyl acetate (57 ° C)

Aufgabe des Schrumpfregulators ist es, das Artikelmaß einzustellen, insbesondere bei schon vorhandenen Formen. Wenn nun beispielsweise ein Treibmittel durch ein anderes ersetzt werden muß, verändert sich der Schrumpf. So mußte z. B. aus Umweltschutzgründen das ozonschädliche Frigen 11 im PU-Weich-Integralschaum abgelöst werden. Durch den Schrumpfregulator läßt sich der ursprüngliche Schrumpf wiederherstellen und damit auch das gewünschte Artikelmaß.The job of the shrink regulator is to measure the size of the article discontinue, especially with existing forms. If, for example, one blowing agent is replaced by another the shrinkage changes. So had to e.g. B. for environmental reasons, the ozone depleting frigen 11th in the soft PU integral foam. By the Shrink regulator lets the original shrink restore and thus also the desired item size.

Claims (12)

1. Schrumpfändernder Zusatz (Schrumpfregulator) auf der Basis von Kohlenwasserstoffen, Carbonylverbindungen oder dgl. mit Flammpunkten ≧ 38°C zur Verwendung bei der Herstellung von Formkörpern aus aufschäumbaren Kunststoffen, insbesondere aus Polyurethan (PU-Weich-Integralschaum, PU-RIM, PU-RRIM).1. Shrink changing additive (shrink regulator) on the base of hydrocarbons, carbonyl compounds or the like. with flash points ≧ 38 ° C for use in manufacturing of moldings made of foamable plastics, especially made of polyurethane (PU soft integral foam, PU-RIM, PU-RRIM). 2. Schrumpfändernder Zusatz nach Anspruch 1, dadurch gekennzeichnet, daß dieser einen Flammpunkt von ≧ 55°C hat.2. Shrinkage changing additive according to claim 1, characterized characterized that this has a flash point of ≧ 55 ° C. Has. 3. Schrumpfändernder Zusatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dieser eine höhersiedende Benzinfraktion ist.3. Shrinkage changing additive according to claim 1 or 2, characterized characterized that this is a higher boiling Gasoline fraction is. 4. Schrumpfändernder Zusatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dieser Decahydronaphthalin ist.4. Shrinkage changing additive according to claim 1 or 2, characterized characterized that this is decahydronaphthalene. 5. Schrumpfändernder Zusatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dieser Tetrahydronaphthalin ist.5. Shrinkage changing additive according to claim 1 or 2, characterized characterized that this is tetrahydronaphthalene. 6. Schrumpfändernder Zusatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dieser ein Keton ist.6. Shrinkage changing additive according to claim 1 or 2, characterized characterized that this is a ketone. 7. Schrumpfändernder Zusatz nach Anspruch 6, dadurch gekennzeichnet, daß dieser 2-Octanon ist. 7. Shrinkage changing additive according to claim 6, characterized characterized that this is 2-octanone.   8. Schrumpfändernder Zusatz nach Anspruch 6, dadurch gekennzeichnet, daß dieser 2-Nonanon ist.8. Shrinkage changing additive according to claim 6, characterized characterized that this is 2-nonanone. 9. Schrumpfändernder Zusatz nach Anspruch 6, dadurch gekennzeichnet, daß dieser Methyl-2-cyclopenten-1-on ist.9. Shrinkage changing additive according to claim 6, characterized characterized in that this methyl-2-cyclopenten-1-one is. 10. Schrumpfändernder Zusatz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß dieser ein Ester ist.10. Shrinkage changing additive according to claim 1 or 2, characterized characterized that this is an ester. 11. Schrumpfändernder Zusatz nach Anspruch 10, dadurch gekennzeichnet, daß dieser Essigsäure-cyclohexylester ist.11. Shrinkage changing additive according to claim 10, characterized characterized in that this acetic acid cyclohexyl ester is. 12. Schrumpfändernder Zusatz nach Anspruch 10, dadurch gekennzeichnet, daß dieser Essigsäure-n-hexylester ist.12. Shrinkage changing additive according to claim 10, characterized characterized in that this acetic acid n-hexyl ester is.
DE4211129A 1991-04-06 1992-04-03 Use of a shrink-changing additive based on hydrocarbons or carbonyl compounds Expired - Fee Related DE4211129C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4211129A DE4211129C2 (en) 1991-04-06 1992-04-03 Use of a shrink-changing additive based on hydrocarbons or carbonyl compounds

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4111175 1991-04-06
DE4111414 1991-04-09
DE4112318 1991-04-16
DE4211129A DE4211129C2 (en) 1991-04-06 1992-04-03 Use of a shrink-changing additive based on hydrocarbons or carbonyl compounds

Publications (2)

Publication Number Publication Date
DE4211129A1 true DE4211129A1 (en) 1992-10-08
DE4211129C2 DE4211129C2 (en) 2002-10-24

Family

ID=27202359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4211129A Expired - Fee Related DE4211129C2 (en) 1991-04-06 1992-04-03 Use of a shrink-changing additive based on hydrocarbons or carbonyl compounds

Country Status (1)

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DE (1) DE4211129C2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167611A (en) * 1976-03-16 1979-09-11 Politechnika Warszawaska Method of production of compositions which exhibit no shrinkage or which increase in volume during setting
EP0066686B1 (en) * 1981-06-05 1984-07-04 Hüls Aktiengesellschaft Process for producing difficultly inflammable expandable styrene polymers
EP0463736A2 (en) * 1990-05-30 1992-01-02 Amoco Corporation Method for production of styrenic foam using an alcohol-alkane blowing agent composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167611A (en) * 1976-03-16 1979-09-11 Politechnika Warszawaska Method of production of compositions which exhibit no shrinkage or which increase in volume during setting
EP0066686B1 (en) * 1981-06-05 1984-07-04 Hüls Aktiengesellschaft Process for producing difficultly inflammable expandable styrene polymers
EP0463736A2 (en) * 1990-05-30 1992-01-02 Amoco Corporation Method for production of styrenic foam using an alcohol-alkane blowing agent composition

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DE-B.: Sicherheitstechnische Kenndaten, ecomed Verlagsgesellschaft, 54.Erg. Lfg. 12/96 (1,3,5- Trimethylbenzol) *
DE-Firmenschrift: Fluka-chemikalienkatalog, 1995/ 96, S.986 ("Mexitylen") *
Derwent World Patents Index, Ref.-Nr.91-033663/05 (zu JP 02303815-A) *

Also Published As

Publication number Publication date
DE4211129C2 (en) 2002-10-24

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Legal Events

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8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: PHOENIX KUNSTSTOFF GMBH, 21079 HAMBURG, DE

8127 New person/name/address of the applicant

Owner name: DYNAMIT NOBEL KUNSTSTOFF GMBH, 91781 WEISSENBURG,

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee