EP1817365A1 - Pellicules de couche intermediaire stabilisees par organophosphine pour vitrage en verre feuillete - Google Patents

Pellicules de couche intermediaire stabilisees par organophosphine pour vitrage en verre feuillete

Info

Publication number
EP1817365A1
EP1817365A1 EP05845906A EP05845906A EP1817365A1 EP 1817365 A1 EP1817365 A1 EP 1817365A1 EP 05845906 A EP05845906 A EP 05845906A EP 05845906 A EP05845906 A EP 05845906A EP 1817365 A1 EP1817365 A1 EP 1817365A1
Authority
EP
European Patent Office
Prior art keywords
aliphatic
film
interlayer film
aromatic
glazing according
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Withdrawn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
EP05845906A
Other languages
German (de)
English (en)
Inventor
Uwe Keller
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.)
Kuraray Specialities Europe GmbH
Original Assignee
Kuraray Specialities Europe GmbH
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 Kuraray Specialities Europe GmbH filed Critical Kuraray Specialities Europe GmbH
Publication of EP1817365A1 publication Critical patent/EP1817365A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/50—Phosphorus bound to carbon 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • 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
    • C08J2329/00—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 alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • 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
    • C08J2329/00—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 alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols

Definitions

  • the invention relates to polymer mixtures stabilized by organophosphines, which can be used as an interlayer film in laminated safety slices.
  • Laminated safety washers consisting of two glass panes and an adhesive film connecting the glass panes are used in particular as windshields in motor vehicles, it being possible for a pane of glass to be replaced by a plastic pane.
  • the material used for the panes in addition to silicate glass or float glass amorphous polyamide, transparent PMMA, polycarbonate or polyester, for the interlayer film preferably partially acetalized polyvinyl alcohols, especially polyvinyl butyral (PVB) are used.
  • z. B. as windows or as intermediate walls, such silicate glass / silicate glass or silicate glass / plastic composites are used, depending on the use, for.
  • composite armored glasses and multiple composites, ie composites that consist of more than two supporting layers are used.
  • the extrusion mass must be stabilized against thermal or oxidative degradation.
  • the stabilization is particularly necessary when using recycled material, as this material is repeatedly exposed to a number of times the temperature and shear loads of the extrusion process by a continuous recycling of eg the Kantenbeitess. This is reflected in one measurable degradation of the average molecular weight of the polymer and an increase in the yellowing of the film product.
  • these or the extrusion composition are frequently subjected to phenolic antioxidants, such as e.g. BHT or Hostanox 010 added.
  • phenolic antioxidants such as e.g. BHT or Hostanox 010 added.
  • phosphites or phosphonites known as a stabilizer, which are particularly well suited for the suppression of yellowing of the film.
  • US Pat. No. 3,950,305 A1 describes the use of esters of phosphorous acid (phosphites) mixed with phenolic antioxidants as a stabilizer for PVB with the aim of increasing the thermal stability of the PVB. This is assessed on the basis of the yellowing under oxygen access and elevated temperature and the torque curve in the case of kneading tests.
  • these polymers have lower water contents and contain no alcohol-capable hydroxyl groups or are extruded under lower thermal loads than the materials commonly used as interlayer films.
  • phosphines are outstandingly suitable as stabilizers of polymer blends used as interlayer films for composite glazing.
  • phosphines are outstandingly suitable as stabilizers of polymer blends used as interlayer films for composite glazing.
  • In addition to an effective reduction of the polymer degradation results in films with a greatly reduced yellow value and without significant increase in adhesion of the film to glass.
  • Interlayer films for laminated glazing containing a
  • R 1, R 2, R 3, R 5, Re, Re, R 9 ⁇ R IO ⁇ Rn in each case independently aliphatic, cycloaliphatic, aliphatic-aromatic or aromatic radicals having 1 to 20
  • R 4 divalent aliphatic, cycloaliphatic, aliphatic-aromatic or aromatic radicals having 1 to 20 carbon atoms
  • R 7 trivalent aliphatic, cycloaliphatic, aliphatic-aromatic or aromatic radicals having 1 to 20 carbon atoms
  • Ri 2 tetravalent aliphatic, cycloaliphatic, aliphatic aromatic or aromatic radicals having 1 to 20 carbon atoms
  • the film comprises 0 to 90% by weight of the mixture as virgin material and 100 to 10% by weight of a recycled material containing the same polymer as the virgin material.
  • the films of the invention may consist entirely of recycled material.
  • the amount of recycled material may be 90, 80, 70, 60, 50, 40, 30 or 20% by weight.
  • Preferred stabilizers of the mixtures according to the invention are those having aromatic substituents (phenyl, naphthyl radicals) of the phosphorus atoms, in particular the phosphines V and VI disclosed in WO 02/06390.
  • Ri and R2 have the meanings mentioned.
  • Particularly preferred phosphines in the context of the present invention are benzyldiphenylphosphine, bis-1,2-diphenylphosphinobenzene, 1,3-bis (diphenylphosphino) -2,2-dimethylpropane or 1,1,1-tris (diphenylphosphinomethyl) propane.
  • the films of the invention preferably contain 0.001 to 1 wt.%, Preferably 0.005 to 0.5 wt.% In particular 0.01 to 0.3 wt.% Of said organophosphines, each based on the polymer. Based on the total formulation, the proportion of organophosphines is 0.065 to 0.65% by weight, preferably 0.0325 to 0.325, in particular 0.065 to 0.195% by weight.
  • the addition of these organophosphines is particularly useful when processing recycled materials. This is understood to mean, for example, an extruded material which has substantially the same composition with respect to the polymer and / or the plasticizer as an unprocessed mixture (with or without the addition of organophosphines).
  • the recycled material is preferably made, like the virgin material, by extrusion of the polymer and optionally one or more plasticizers. Recycled materials fall in particular when cutting ("trimming") an interlayer film in the production of composite glazings as so-called. "Trimmings" on.
  • the recycled material will have the same composition as the raw material except for the addition of organophosphines.
  • the addition of the organophosphines therefore makes it possible to further process already extruded materials which contain no special stabilizers for a recycling process.
  • films according to the invention contain a recycling material which has the same composition as the virgin material.
  • the recycled material contains no organophosphines, so that they can be added if necessary with the fresh material in the production of the film.
  • the interlayer films according to the invention preferably contain one or more plasticizers.
  • Suitable plasticizers are all known in the art plasticizers, in particular esters of polybasic acids, esters of polyhydric alcohols or Oligoetherglykolen. Suitable examples are adipic acid esters, sebacic acid esters or phthalic acid esters, in particular di-n- hexyl adipate, dibutyl sebacate, dioctyl phthalate, esters of di-, tri-tetraglycols with linear or branched aliphatic carboxylic acids and mixtures of these esters.
  • esters of aliphatic diols with long-chain aliphatic carboxylic acids especially esters of triethylene glycol with aliphatic carboxylic acids containing 6 to 10 carbon atoms, such as 2-ethylbutyric acid or n-heptanoic acid, are frequently used.
  • plasticizers from the group consisting of di-n-hexyl adipate (DHA), dibutyl sebacate (DBS), dioctyl phthalate (DOP), esters of di-, tri- or tetraglycols with linear or branched aliphatic carboxylic acids, in particular triethylene glycol bis- 2-ethyl butyrate (3GH), triethylene glycol bis-n-heptanoate (3G7), triethylene glycol bis-2-ethylhexanoate (3G8), tetraethylene glycol bis-n-heptanoate (4G7), tetraethylene glycol bis-2-ethylhexanoate (4G8) ,
  • DHA di-n-hexyl adipate
  • DBS dibutyl sebacate
  • DOP dioctyl phthalate
  • esters of di-, tri- or tetraglycols with linear or branched aliphatic carboxylic acids in particular
  • the plastic material plasticized with the plasticizers mentioned preferably contains from 25 to 45 parts by weight and more preferably from 30 to 40 parts by weight of plasticizer, based on 100 parts by weight of polymer.
  • polymers it is possible to use partially acetalized polyvinyl alcohols such as polyvinyl butyrals, ethylene-vinyl acetates or casting resins.
  • Recycled material and virgin material must have the same polymer. This is understood to mean the nature of the polymer, but not chemical differences such as molecular weight, monomer distribution or the like. According to the invention recycling material and virgin material polyvinyl butyrals having different molecular weights, Restacetat-, Restvinylalkoholanteile or Acetalmaschinesgrade. Not according to the invention would be, for example, the use of PVB as a virgin material and EVA as Recycled material.
  • Polyvinyl alcohols are prepared in a known manner by acetalization of hydrolyzed polyvinyl esters.
  • aldehydes for example, formaldehyde, acetaldehyde, propionaldehyde or butyraldehyde can be used.
  • the polyvinyl butyral preferably used as polymer material contains 10 to 25 wt.%, Preferably 17 to 23 wt.% And particularly preferably 19 to 21
  • the water content of the films according to the invention is preferably adjusted to 0.15 to 0.8% by weight, in particular 0.3 to 0.5% by weight.
  • Films according to the invention may additionally comprise further stabilizers, e.g. one or more compounds from the group of
  • Organophosphates or organophosphites e.g. in WO 03/033583 A1, and / or the usual phenolic antioxidants
  • hindered amine stabilizers e.g., Irganox 1070
  • hindered amine stabilizers e.g., Irganox 1070
  • HAS or HALS stabilizers e.g., Uvinul 4050 from BASF.
  • HAS or HALS stabilizers can each be used in the amounts mentioned for the organophosphines.
  • Another object of the present invention are composite glazings consisting of at least 2 glass sheets and at least one film according to the invention.
  • the production of such composite glazings under elevated or reduced pressure and elevated temperature, for example in autoclaves and / or vacuum laminators, is known to the person skilled in the art.
  • the stabilized polymer blends according to the invention have almost the same adhesion level to glass as polymer blends without said organophosphines.
  • the usual metal salts can be used as adhesion regulators in the known amounts, ie the mixture can contain one or more salts of alkali and / or alkaline earth metals with organic acids. Particularly suitable are potassium and / or magnesium acetate, heptanoate or octanoate.
  • the metal salts are preferably used in each case in an amount of 0.001-0.1% by weight, based on the polymeric material.
  • the change in yellowness of a film in a glass composite compared to a pair of glass-free glass with "white tile” applied can be given in Table 1.
  • the preparation of the films according to the invention can proceed as follows: First, the polymer is conveyed into the catchment area of an extruder, where it with the plasticizer, in the previously the UV absorber, the anti-adhesive agent and the organophosphine and optionally other additives such as anti-adhesive, other stabilizers , Dyes and UV absorbers have been distributed as homogeneously as possible, combined. Subsequently, the extrusion of the homogeneous melt through a slot die takes place to a film web.
  • Films of the invention or composite glazings produced therewith can be used in the construction and automotive sectors.
  • the yellowness test ⁇ b was tested with a spectral colorimeter "Labscan 5100" using the
  • the test was carried out by measuring the yellowness change of a
  • Comparative Examples 1 and 2 and Example 3 according to the invention was prepared at a mass flow rate of 160 kg / h of film of a thickness of 0.76 in the conventional manner known in the art according to EP 0 185 863 with high levels of recycled material.
  • the latter was homogenized and melted together with a mixture of commercially available PVB (Mowital® LP B 68/1 SF from KSE) with the plasticizer DHA in a single-screw extruder at a throughput of 160 kg / h and extruded through a slot die.
  • the recycled material was shredded before being fed into the extruder with cooling and consisted of residues of the product TROSIFOL MV-FR 0.43 and contained besides the said PVB resin, the plasticizer DHA in an amount of 24.5 wt .-% and as an anti-adhesive potassium acetate in an amount of 0.035 wt .-%.
  • the extrusion system used produces films with a markedly increased non-marketable yellowness ⁇ b of more than 2.0.
  • the mixture had no stabilizer.
  • Comparative Example 2 the film of 70% recycled content and 30% Frischgutanteil consisting of 75.5 wt .-% PVB and 24.5 wt .-% of the plasticizer DHA, as an anti-stick agent 0.04 wt.% Potassium acetate as an aqueous solution and of the UV absorber Tinuvin P. extruded.
  • Comparative Example 2 shows due to the stabilizer used very high adhesion to glass (high Pummelute).
  • Example 3 the film was prepared as in Comparative Example 2, except that the phosphine bis (diphenylphosphino) -2,2-dimethylpropane was used in place of the phosphine Alkanox TNPP.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

L'invention concerne des mélanges polymères stabilisé, contenant de l'alcool polyvinylique, de l'alcool polyvinylique partiellement acétalisé et/ou un copolymère éthylène/vinylacétate, ainsi qu'une ou plusieurs organophosphines, qui sont obtenus par utilisation d'un matériau de recyclage.
EP05845906A 2004-12-01 2005-12-01 Pellicules de couche intermediaire stabilisees par organophosphine pour vitrage en verre feuillete Withdrawn EP1817365A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410000058 DE102004000058A1 (de) 2004-12-01 2004-12-01 Organophosphin-stabilisierte Polymermischungen
PCT/EP2005/056366 WO2006058899A1 (fr) 2004-12-01 2005-12-01 Pellicules de couche intermediaire stabilisees par organophosphine pour vitrage en verre feuillete

Publications (1)

Publication Number Publication Date
EP1817365A1 true EP1817365A1 (fr) 2007-08-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05845906A Withdrawn EP1817365A1 (fr) 2004-12-01 2005-12-01 Pellicules de couche intermediaire stabilisees par organophosphine pour vitrage en verre feuillete

Country Status (4)

Country Link
EP (1) EP1817365A1 (fr)
CN (1) CN101068859B (fr)
DE (1) DE102004000058A1 (fr)
WO (1) WO2006058899A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101962462B (zh) * 2010-10-30 2012-09-05 浙江德斯泰塑胶有限公司 具有防火功能的pvb中间膜
CN107245163B (zh) * 2013-09-13 2019-09-24 陶氏环球技术有限责任公司 过氧化物可交联的组合物及其制造方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941973A (en) * 1955-04-29 1960-06-21 Du Pont Modified hydrolyzed ethylene vinyl ester interpolymers
GB1404370A (en) * 1971-08-02 1975-08-28 Eastman Kodak Co Photographic process and materials therefor
US3950305A (en) * 1972-02-22 1976-04-13 Hoechst Aktiengesellschaft Stabilized polyvinyl butyral and stabilizer for polyvinyl butyral
DE3128530A1 (de) * 1981-07-18 1983-02-03 Dynamit Nobel Ag, 5210 Troisdorf Weichmacherhaltige folien aus teilacetalisierten polyvinylalkoholen
CA1227900A (fr) * 1982-08-16 1987-10-06 Grace (W.R.) & Co. Composes de phosphine accelerateurs de prise des amides contenus dans les resines d'epoxy
DE3347040C2 (de) * 1983-12-24 1987-01-29 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von lichtbeständigen Polyvinylbutyral-Folien sowie die Verwendung der Folien
US4835202A (en) * 1987-11-20 1989-05-30 Ciba-Geigy Corporation (Hydroxyphenyl) phosphine stabilized compositions
DE4309638A1 (de) * 1993-03-25 1994-09-29 Hoechst Ag Weichmacherhaltige Polyvinylbutyrale mit gegenüber Silikatglas verbesserten haftungsreduzierenden Eigenschaften, Verfahren zu ihrer Herstellung und ihre Verwendung
FR2739381B1 (fr) * 1995-09-28 1999-06-11 Clariant Finance Bvi Ltd Stabilisation de matieres polymeres avec des derives du phosphore
DE19961464A1 (de) * 1999-12-20 2001-06-21 Clariant Internat Ltd Muttenz Mischungen aus Phosphanen und Chroman-Derivaten
TWI226351B (en) * 2000-07-14 2005-01-11 Clariant Int Ltd Synergistic mixtures of phosphorus-containing compounds for stabilizing polymers
BR0114445A (pt) * 2000-10-11 2004-01-06 Exxonmobil Chemical Patentes I Composições termoplásticas de elastÈmeros halogenados
ATE286938T1 (de) * 2001-06-19 2005-01-15 Clariant Finance Bvi Ltd Phosphorverbindungen als stabilisatoren
DE10150091A1 (de) * 2001-10-11 2003-04-17 Huels Troisdorf PVB-Folie für Verbundsicherheitsglas und Verbundsicherheitsglas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006058899A1 *

Also Published As

Publication number Publication date
DE102004000058A1 (de) 2006-06-08
CN101068859B (zh) 2011-07-13
CN101068859A (zh) 2007-11-07
WO2006058899A1 (fr) 2006-06-08

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