WO1999048957A1 - Verfahren zur herstellung wasserexpandierbarer styrolpolymerisate - Google Patents
Verfahren zur herstellung wasserexpandierbarer styrolpolymerisate Download PDFInfo
- Publication number
- WO1999048957A1 WO1999048957A1 PCT/EP1999/001838 EP9901838W WO9948957A1 WO 1999048957 A1 WO1999048957 A1 WO 1999048957A1 EP 9901838 W EP9901838 W EP 9901838W WO 9948957 A1 WO9948957 A1 WO 9948957A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- styrene
- water
- polymerization
- solid substance
- particle size
- Prior art date
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
- C08J9/16—Making expandable particles
- C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/06—Hydrocarbons
- C08F12/08—Styrene
-
- 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
- C08J9/0066—Use of inorganic compounding ingredients
-
- 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
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
Definitions
- the invention relates to a process for the preparation of water-expandable styrene polymers (WEPS) by polymerizing styrene in aqueous suspension, the suspended styrene droplets containing water in a finely dispersed manner emulsified.
- WEPS water-expandable styrene polymers
- EPS Particulate expandable styrene polymers
- Common blowing agents are hydrocarbons, especially pentane.
- pentane emitted during the manufacture and processing of EPS must be collected again. This is complex and costly. It therefore makes sense to replace these organic substances with harmless blowing agents in the long term, for example with water.
- This process has the disadvantage that it is carried out in two stages: first water is emulsified in the styrene / polystyrene mixture, then the organic phase is suspended in water with phase reversal.
- the object of the invention was therefore to develop a simpler, one-step process for the production of WEPS.
- This object is achieved in that at the beginning or in the course of the suspension polymerization 0.1 to 15 wt .-%, based on the monomers, of a water and styrene insoluble 2 inorganic solid substance with an average particle size of at most 100 microns and a density of more than 1.1 g / cm 3 is added.
- the particles of the solid Due to gravitational and centrifugal forces during the polymerization, the particles of the solid constantly penetrate the interface between the water and styrene phases and in doing so constantly carry adherent water droplets into the styrene phase. This is probably the basis of the effect of the solids as an emulsifying agent.
- the preferred solid substance is carbon black with an average particle size of 10 to 500 Nm, depending on the type of carbon black. Carbon black is effective in amounts of preferably 0.2 to 5% by weight. Also suitable is graphite with an average particle size (longest leaflet diameter) of 2 to 20 ⁇ m. The effective amount is preferably 0.4 to 10% by weight.
- silica gel silicates, for example talc or bentonite
- metal oxides for example Al 2 0 3 and Ti0 2
- hydroxides such as AlO (OH) and Mg (OH) 2
- metal salts such as CaC0 3 , Mg 3 (P0 4 ) and BaS0 suitable.
- styrene alone is preferably used as the monomer. However, up to 20% of its weight can be replaced by other ethylenically unsaturated monomers, such as alkylstyrenes, divinylbenzene, acrylonitrile, 1,1-diphenylethene or ⁇ -methylstyrene.
- the usual auxiliaries such as e.g. Suspension stabilizers, radical initiators, flame retardants, chain transfer agents, expansion aids, nucleating agents and plasticizers are added.
- inorganic Pickering dispersants e.g. Magnesium pyrophosphate or tricalcium phosphate
- Preferred flame retardants are organic bromine compounds, such as hexabromocyclododecane, which are added in amounts of 0.1 to 2% by weight, based on the monomers.
- polystyrene which is expediently used as a styrenic solution.
- polystyrene recyclate can also be used.
- the solid substance is preferably added right at the start of the suspension polymerization, but it is also possible to meter in up to a conversion of 90% in the course of the polymerization.
- the suspension polymerization is expediently carried out in two temperature stages, two peroxide initiators decomposing at different temperatures being used.
- the first peroxide e.g. Dibenzoyl peroxide
- the temperature is allowed to rise slowly to 100 to 140 ° C.
- the second peroxide then breaks down, e.g. Dicumyl peroxide or di-tert. Butyl perbenzoa.
- the WEPS particles formed in the suspension polymerization contain 2 to 20, in particular 5 to 15,% by weight of water, depending on the amount of EPS recyclate used and their content of coating agent. Their particle size is 0.2 to 5, preferably 0.5 to 2 mm. They can be foamed into foam particles with 110 to 140 ° C hot air or superheated steam. A particularly elegant foaming process, which leads to foam particles with a very low bulk density, is described in German Patent Application P 198 12 854.1.
- the WEPS foam particles can be welded to form foam sheets, blocks or molded parts that can be used as insulation or packaging materials.
- the product could be expanded using air heated to over 100 ° C.
- the product expanded to 8 times its original bulk density of approx. 600 g / 1.
- the pre-expanded product was then dried and foamed in a second and third expansion step with steam to a bulk density of 10 g / l.
- the product could be expanded using air heated to over 100 ° C.
- the product expanded to 10 times its original bulk density of approx. 600 g / 1.
- the pre-expanded product was then dried and foamed in a second and third expansion step with steam to a bulk density below 10 g / l.
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)
- Inorganic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/623,479 US6387968B1 (en) | 1998-03-24 | 1999-03-19 | Method for producing water expandable styrene polymers |
EP99910367A EP1082382A1 (de) | 1998-03-24 | 1999-03-19 | Verfahren zur herstellung wasserexpandierbarer styrolpolymerisate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19812856.8 | 1998-03-24 | ||
DE19812856A DE19812856A1 (de) | 1998-03-24 | 1998-03-24 | Verfahren zur Herstellung wasserexpandierbarer Styrolpolymerisate |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999048957A1 true WO1999048957A1 (de) | 1999-09-30 |
Family
ID=7862087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/001838 WO1999048957A1 (de) | 1998-03-24 | 1999-03-19 | Verfahren zur herstellung wasserexpandierbarer styrolpolymerisate |
Country Status (4)
Country | Link |
---|---|
US (1) | US6387968B1 (de) |
EP (1) | EP1082382A1 (de) |
DE (1) | DE19812856A1 (de) |
WO (1) | WO1999048957A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6528570B1 (en) | 1999-07-26 | 2003-03-04 | Nova Chemicals (International) S.A. | Polymer particles |
US6545062B2 (en) | 2001-01-13 | 2003-04-08 | Basf Aktiengesellschaft | Production of water-expandable styrene polymers |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6258864B1 (en) | 1999-01-20 | 2001-07-10 | Cabot Corporation | Polymer foam containing chemically modified carbonaceous filler |
US6586501B1 (en) | 1999-01-20 | 2003-07-01 | Cabot Corporation | Aggregates having attached polymer groups and polymer foams |
US6900262B2 (en) | 2000-10-02 | 2005-05-31 | The University Of Akron | Synthesis and characterization of nanocomposites by emulsion polymerization |
DE10101432A1 (de) * | 2001-01-13 | 2002-07-18 | Basf Ag | Kohlenstoffpartikel enthaltende expandierbare Styrolpolymerisate |
US7605188B2 (en) * | 2004-12-31 | 2009-10-20 | Owens Corning Intellectual Capital, Llc | Polymer foams containing multi-functional layered nano-graphite |
US9359481B2 (en) | 2003-11-26 | 2016-06-07 | Owens Corning Intellectual Capital, Llc | Thermoplastic foams and method of forming them using nano-graphite |
US8568632B2 (en) * | 2003-11-26 | 2013-10-29 | Owens Corning Intellectual Capital, Llc | Method of forming thermoplastic foams using nano-particles to control cell morphology |
US20080287560A1 (en) * | 2004-12-31 | 2008-11-20 | Loh Roland R | Polymer foams containing multi-functional layered nano-graphite |
DE102004058586A1 (de) * | 2004-12-03 | 2006-06-14 | Basf Ag | Halogenfrei flammgeschützte, expandierbare Styrolpolymerisate |
WO2006061571A1 (en) * | 2004-12-06 | 2006-06-15 | Ineos Europe Limited | Expandable polystyrene composition |
ITMI20050666A1 (it) * | 2005-04-15 | 2006-10-16 | Polimeri Europa Spa | Procedimento per il migoioramento del potere isolante di polimeri vinilaromatici espansi e prodotti cosi'ottenuti |
US9187608B2 (en) * | 2005-09-08 | 2015-11-17 | Owens Corning Intellectual Capital, Llc | Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance |
IT1366567B (it) * | 2005-10-18 | 2009-10-06 | Polimeri Europa Spa | Granulati espandibili a basemdi polimeri vinilaromatici dotati di migliorata espansibilita'e procedimento per la loro preparazione |
EP2064272A4 (de) * | 2006-09-08 | 2010-01-20 | Nova Chem Inc | Polymerpartikel und zugehörige gegenstände |
US20080242752A1 (en) * | 2007-03-28 | 2008-10-02 | Yadollah Delaviz | Polystyrene foams incorporating nanographite and HFC-134 |
US20090030095A1 (en) * | 2007-07-24 | 2009-01-29 | Laverdure Kenneth S | Polystyrene compositions and methods of making and using same |
US20090246501A1 (en) * | 2008-03-26 | 2009-10-01 | Fina Technology, Inc. | Reduced Weight Multilayer Polymeric Articles and Methods of Making and Using Same |
US8507568B2 (en) * | 2008-05-28 | 2013-08-13 | The Ohio State University | Suspension polymerization and foaming of water containing activated carbon-nano/microparticulate polymer composites |
US8093308B2 (en) * | 2009-01-30 | 2012-01-10 | Fina Technology, Inc. | Styrenic polymer compositions and methods of making and using same |
WO2013045532A1 (en) | 2011-09-28 | 2013-04-04 | Eidgenössische Technische Hochschule Zürich | Expandable polymers |
US9702238B2 (en) | 2012-10-25 | 2017-07-11 | Halliburton Energy Services, Inc. | Wellbore servicing methods and compositions comprising degradable polymers |
US9410076B2 (en) | 2012-10-25 | 2016-08-09 | Halliburton Energy Services, Inc. | Wellbore servicing methods and compositions comprising degradable polymers |
US20140116698A1 (en) | 2012-10-26 | 2014-05-01 | Halliburton Energy Services, Inc. | Wellbore Servicing Fluids Comprising Foamed Materials and Methods of Making and Using Same |
US8714249B1 (en) | 2012-10-26 | 2014-05-06 | Halliburton Energy Services, Inc. | Wellbore servicing materials and methods of making and using same |
US20140116702A1 (en) | 2012-10-26 | 2014-05-01 | Halliburton Energy Services, Inc. | Expanded Wellbore Servicing Materials and Methods of Making and Using Same |
US9951266B2 (en) | 2012-10-26 | 2018-04-24 | Halliburton Energy Services, Inc. | Expanded wellbore servicing materials and methods of making and using same |
EP2945981B1 (de) * | 2013-01-18 | 2020-05-06 | BEWiSynbra RAW Oy | Verfahren zur herstellung von polystyrolkügelchen mit wärmeundurchlässigen partikeln |
FR3009561B1 (fr) * | 2013-08-06 | 2017-12-22 | Arkema France | Procede de preparation de polystyrene expansible noir |
US20230365773A1 (en) | 2022-05-13 | 2023-11-16 | Fina Technology, Inc. | High Melt Strength Polystyrene Compositions and Methods of Making and Using Same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA844652A (en) * | 1970-06-16 | W. Jurgeleit Hans | Expandable polymer compositions | |
US4360611A (en) * | 1979-10-23 | 1982-11-23 | Sinloihi Company Limited | Fine spherical polymer particles and process for the preparation thereof |
WO1997045477A1 (de) * | 1996-05-28 | 1997-12-04 | Basf Aktiengesellschaft | Russpartikel enthaltende expandierbare styrolpolymerisate |
WO1998001488A1 (en) * | 1996-07-04 | 1998-01-15 | Shell Internationale Research Maatschappij B.V. | Process for the preparation of polymer particles |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6377947A (ja) * | 1986-09-19 | 1988-04-08 | Mitsubishi Yuka Badische Co Ltd | スチレン・アクリロニトリル・ブタジエン系共重合体の発泡粒子の製造方法 |
US5661191A (en) * | 1995-01-13 | 1997-08-26 | Mitsubishi Chemical Basf Company Limited | Expandable rubber-modified styrene resin beads, expanded beads thereof, and expanded molded articles obtained therefrom |
DE19629791A1 (de) * | 1996-07-24 | 1998-01-29 | Basf Ag | Expandierbare Styrolpolymerisate |
DE19716572A1 (de) * | 1997-04-19 | 1998-10-22 | Basf Ag | Expandierbare Styrolpolymerisate |
-
1998
- 1998-03-24 DE DE19812856A patent/DE19812856A1/de not_active Withdrawn
-
1999
- 1999-03-19 EP EP99910367A patent/EP1082382A1/de not_active Withdrawn
- 1999-03-19 US US09/623,479 patent/US6387968B1/en not_active Expired - Fee Related
- 1999-03-19 WO PCT/EP1999/001838 patent/WO1999048957A1/de not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA844652A (en) * | 1970-06-16 | W. Jurgeleit Hans | Expandable polymer compositions | |
US4360611A (en) * | 1979-10-23 | 1982-11-23 | Sinloihi Company Limited | Fine spherical polymer particles and process for the preparation thereof |
WO1997045477A1 (de) * | 1996-05-28 | 1997-12-04 | Basf Aktiengesellschaft | Russpartikel enthaltende expandierbare styrolpolymerisate |
WO1998001488A1 (en) * | 1996-07-04 | 1998-01-15 | Shell Internationale Research Maatschappij B.V. | Process for the preparation of polymer particles |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6528570B1 (en) | 1999-07-26 | 2003-03-04 | Nova Chemicals (International) S.A. | Polymer particles |
US6545062B2 (en) | 2001-01-13 | 2003-04-08 | Basf Aktiengesellschaft | Production of water-expandable styrene polymers |
Also Published As
Publication number | Publication date |
---|---|
EP1082382A1 (de) | 2001-03-14 |
DE19812856A1 (de) | 1999-09-30 |
US6387968B1 (en) | 2002-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1999048957A1 (de) | Verfahren zur herstellung wasserexpandierbarer styrolpolymerisate | |
DE69703742T2 (de) | Verfahren zur herstellung polymerer teilchen | |
DE69703114T2 (de) | Verfahren zur herstellung polymere teilchen | |
EP0981575B1 (de) | Verfahren zur herstellung graphitpartikel enthaltender expandierbarer styrolpolymerisate | |
DE4220225A1 (de) | Verfahren zur Herstellung von perlförmigen expandierbaren Styrolpolymerisaten | |
EP1137701B1 (de) | Graphitpartikel enthaltende expandierbare styrolpolymerisate | |
EP1023368A1 (de) | Verfahren zur herstellung von expandierbaren styrolpolymerisaten | |
WO2013092322A2 (de) | Verfahren zur herstellung von expandierbaren, graphit- und flammschutzmittelhaltigen styrolpolymerisaten | |
EP0872513B1 (de) | Expandierbare Styrolpolymerisate | |
WO2013092466A1 (de) | Hochtemperaturperoxid-haltige styrolpolymerisatperlen für die saatpolymerisation | |
EP1082383B1 (de) | Verfahren zur herstellung wasserexpandierbarer recyclat enthaltender styrolpolymerisate | |
EP1223180B1 (de) | Verfahren zur Herstellung wasserexpandierbarer Styrolpolymerisate | |
EP1082364A1 (de) | Verfahren zur herstellung wasserexpandierbarer styrolpolymerisate | |
EP1223179B1 (de) | Verfahren zur Herstellung wasserexpandierbarer Styrolpolymerisate | |
EP1432757B1 (de) | Verfahren zur herstellung von expandierbarem polystyrol | |
EP1994085B1 (de) | Verfahren zur herstellung von expandierbaren styrolpolymerisaten | |
EP1002829B1 (de) | Gefüllte schäumbare Polystyrol-Partikel | |
EP1142942A2 (de) | Verfahren zur Herstellung Aluminiumpulver enthaltender expandierbarer Styrolpolymerisate | |
DE2510937B2 (de) | Verfahren zur Herstellung expandierbarer Polystyrolpartikel | |
EP2794673A1 (de) | Verfahren zur herstellung von expandierbaren, partikelförmige additive enthaltenden styrolpolymeren | |
DE3125446A1 (de) | Verfahren zur herstellung von styrol-suspensionspolymerisaten | |
WO2013068297A1 (de) | Verfahren zur herstellung von expandierbaren styrolpolymeren mit hydrophobierten kohlenstoffpartikeln | |
DE19843327A1 (de) | Teilchenförmige, expandierbare Styrolpolymerisate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN JP KR MX US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1999910367 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09623479 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1999910367 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1999910367 Country of ref document: EP |