WO2006048089A1 - Acrylglas mit phototropen eigenschaften - Google Patents
Acrylglas mit phototropen eigenschaften Download PDFInfo
- Publication number
- WO2006048089A1 WO2006048089A1 PCT/EP2005/010556 EP2005010556W WO2006048089A1 WO 2006048089 A1 WO2006048089 A1 WO 2006048089A1 EP 2005010556 W EP2005010556 W EP 2005010556W WO 2006048089 A1 WO2006048089 A1 WO 2006048089A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- intermediate layer
- poymethylmethacrylat
- polymethyl methacrylate
- sandwiches
- dyes
- Prior art date
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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/54—Slab-like translucent elements
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
-
- 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
- B32B2419/00—Buildings or parts thereof
Definitions
- the invention relates to an acrylic glass with photochromic properties, methods of preparation and uses.
- polymethyl methacrylate Due to its hardness as a plastic matrix, polymethyl methacrylate is not suitable for these dyes since it does not leave the necessary freedom of movement for the dye molecules.
- plasticizers or softening comonomers makes the system effective. However, the material becomes so soft that it no longer meets the requirements for the respective applications.
- the task was therefore to produce a polymethyl methacrylate with photochromic properties.
- the object was achieved by Poymethylmethacrylat sandwiches containing two polymethyl methacrylate plates and an intermediate layer containing photochromic dyes.
- PMMA polymethyl methacrylate
- photochromic properties can be produced by a sandwich construction.
- the two outer PMMA plates provide the mechanical stability, the soft intermediate layer allows the introduction of photochromic dyes.
- the outer PMMA sheets can be modified with the known additives.
- sunscreen agents can be incorporated.
- the PMMA plates may contain dyes which are UV light transmissive.
- the interlayer must be so soft that the dye molecules retain sufficient mobility to produce the color change by isomerism.
- plasticizers it is possible to use all commercial additives, such as adipates, phthalates, phosphates or citrates. Particular preference is given to adding di-n-butyl adipate and diisobutyl phthalate as plasticizer.
- PMMA compatible monomers can be used.
- Compounds of the class of acrylates or higher alkylated methacrylates are particularly suitable.
- the intermediate layer can also consist entirely of polyacrylates or higher alkylated polymethacrylates. It has been found that especially propyl, butyl and longer chain methacrylates are suitable.
- photochromic dyes can be introduced. Dyes from the group of spiro-naphthoxazines and naphthopyrans are preferably used. Particular preference is given to photochromic reversacol dyes from J. Robinson (Huddersfield, England), such as e.g. Gray 219, Gray 208, Gray 306, Gray 195, Brown 105, Flame 29 B, Sea Green 5, Velvet Blue, Sunflower, Graphite and Palatinate Purple.
- dyes are added to the plastic matrix as a function of the layer thickness.
- a small thickness requires a high concentration. So be For example, at a thickness of 3mm the dyes added in amounts of 0.001% to 0.3%. With low layer thicknesses, up to 10% of dyes can be added. It has been found that good photochromic properties are detectable when the thickness of the intermediate layer is between 0.01 and 5 mm. The best results were achieved with layer thicknesses between 0.1 and 3 mm. It is also possible to use mixtures of different dyes.
- the sandwiches according to the invention can be prepared by various processes. Particularly suitable is the chamber casting method.
- the polymethyl methacrylate plates are manufactured separately in the chamber casting process. Depending on the thickness of the plates, the temperature and time of tempering are determined.
- the conventional additives e.g. UV filters, initiators, dyes or stabilizers are added.
- the intermediate layer is coated with the appropriate additives, e.g. photochromic dyes and optionally plasticizers, cast between the polymethyl methacrylate plates.
- the composite is produced via source processes.
- the PMMA plates can be treated with crosslinkers to regulate the swelling.
- the internal coextrusion process is suitable for producing the sandwiches according to the invention.
- EP1270176 describes a process for the production of multilayer hollow profile sheets. Here, an upper and a lower layer of a plastic melt and an im Inner layer of the hollow chamber profile made of a plastic melt by way of coextrusion of the plastic melt and using an extrusion die and subsequent calibration of the extrudate obtained. With an adapted extrusion tool, the sandwiches according to the invention can be produced by this process.
- Part of the invention are thus also the chamber casting process and the internal coextrusion process for producing the sandwiches according to the invention.
- the poymethyl methacrylate sandwiches with photochromic dyes are versatile. They can be used, for example, for self-shading systems in the construction sector, such as e.g. Greenhouses, conservatories, glazings (e.g., skylights), shop windows.
- light stabilizers may be added to protect the photochromic inner layer.
- HALS products such as Tinuvin 770 and UV absorbers, which are particularly effective in the short-wave UV range, e.g.
- Example 2 The batch is stirred vigorously, filled into a 400 ⁇ 500 mm silicate glass chamber which has been distanced with a 3 mm thick cord and polymerized in a water bath at 45 ° C. for 16 h. The final polymerization is carried out in a tempering 4h at 115 0 C.
- Example 2 The final polymerization is carried out in a tempering 4h at 115 0 C.
- the mixture is intensively stirred, filled into a distanced with a 3mm thick cord chamber of colorless acrylic glass from test 1 and polymerized h at 50 0 C in a water bath 22nd
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0517270-5A BRPI0517270A (pt) | 2004-11-04 | 2005-09-30 | vidro de acrìlico com propriedades fotocrÈmicas |
EP05791361A EP1807261A1 (de) | 2004-11-04 | 2005-09-30 | Acrylglas mit phototropen eigenschaften |
CA002580765A CA2580765A1 (en) | 2004-11-04 | 2005-09-30 | Acrylic glass having photochromic properties |
AU2005300858A AU2005300858A1 (en) | 2004-11-04 | 2005-09-30 | Acrylic glass having photochromic properties |
JP2007539479A JP2008518809A (ja) | 2004-11-04 | 2005-09-30 | 光可逆変色特性を有するアクリルガラス |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004053817.4 | 2004-11-04 | ||
DE102004053817A DE102004053817A1 (de) | 2004-11-04 | 2004-11-04 | Acrylglas mit phototropen Eigenschaften |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006048089A1 true WO2006048089A1 (de) | 2006-05-11 |
Family
ID=35432736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/010556 WO2006048089A1 (de) | 2004-11-04 | 2005-09-30 | Acrylglas mit phototropen eigenschaften |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP1807261A1 (de) |
JP (1) | JP2008518809A (de) |
KR (1) | KR20070074597A (de) |
CN (1) | CN101022950A (de) |
AU (1) | AU2005300858A1 (de) |
BR (1) | BRPI0517270A (de) |
CA (1) | CA2580765A1 (de) |
DE (1) | DE102004053817A1 (de) |
WO (1) | WO2006048089A1 (de) |
ZA (1) | ZA200703580B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7704586B2 (en) | 2005-03-09 | 2010-04-27 | Degussa Ag | Plastic molded bodies having two-dimensional and three-dimensional image structures produced through laser subsurface engraving |
US7879938B2 (en) | 2006-07-17 | 2011-02-01 | Evonik Degussa Gmbh | Compositions comprising an organic polymer as the matrix and inorganic particles as the filler, process for the preparation thereof and applications of the same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103481564B (zh) * | 2013-08-16 | 2016-04-13 | 武汉羿阳科技有限公司 | 一种自动调节透光率的窗膜 |
CN110818936B (zh) * | 2019-11-14 | 2022-04-05 | 陕西理工大学 | 一种有机玻璃及其制备方法和应用 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3932690A (en) * | 1973-04-30 | 1976-01-13 | Jenaer Glaswerk Schott & Gen. | Transparent, phototropic laminate |
JPH06138577A (ja) * | 1992-09-08 | 1994-05-20 | Mitsubishi Kasei Corp | フォトクロミック積層体 |
EP1270176A1 (de) * | 2001-06-22 | 2003-01-02 | Röhm GmbH & Co. KG | Extrusionswerkzeug zur Herstellung von Hohlkammerprofilplatten aus thermoplastichem Kunststoff mit innen liegender coextrudierter Schicht |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6424740A (en) * | 1987-07-20 | 1989-01-26 | Toyota Motor Corp | Light-shield glass for windshield of automobile |
JP3404759B2 (ja) * | 1992-01-10 | 2003-05-12 | 橋本フォーミング工業株式会社 | 散乱光採光窓と製造方法 |
US6084702A (en) * | 1998-10-15 | 2000-07-04 | Pleotint, L.L.C. | Thermochromic devices |
TW534869B (en) * | 2000-06-09 | 2003-06-01 | Mitsubishi Gas Chemical Co | Synthetic resin laminate having both polarization characteristic and photochromism characteristic, and molded article obtained therefrom |
US6547390B1 (en) * | 2000-09-11 | 2003-04-15 | Exxene Corporation | Top stabilized photochromic lens system |
US20040131872A1 (en) * | 2001-11-29 | 2004-07-08 | Shaobin Fan | Photochromic articles and methods for making them |
-
2004
- 2004-11-04 DE DE102004053817A patent/DE102004053817A1/de not_active Withdrawn
-
2005
- 2005-09-30 CA CA002580765A patent/CA2580765A1/en not_active Abandoned
- 2005-09-30 AU AU2005300858A patent/AU2005300858A1/en not_active Abandoned
- 2005-09-30 JP JP2007539479A patent/JP2008518809A/ja active Pending
- 2005-09-30 KR KR1020077010075A patent/KR20070074597A/ko not_active Application Discontinuation
- 2005-09-30 EP EP05791361A patent/EP1807261A1/de not_active Withdrawn
- 2005-09-30 CN CNA2005800314417A patent/CN101022950A/zh active Pending
- 2005-09-30 WO PCT/EP2005/010556 patent/WO2006048089A1/de active Application Filing
- 2005-09-30 BR BRPI0517270-5A patent/BRPI0517270A/pt not_active Application Discontinuation
-
2007
- 2007-05-03 ZA ZA200703580A patent/ZA200703580B/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3932690A (en) * | 1973-04-30 | 1976-01-13 | Jenaer Glaswerk Schott & Gen. | Transparent, phototropic laminate |
JPH06138577A (ja) * | 1992-09-08 | 1994-05-20 | Mitsubishi Kasei Corp | フォトクロミック積層体 |
EP1270176A1 (de) * | 2001-06-22 | 2003-01-02 | Röhm GmbH & Co. KG | Extrusionswerkzeug zur Herstellung von Hohlkammerprofilplatten aus thermoplastichem Kunststoff mit innen liegender coextrudierter Schicht |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch Week 199425, Derwent World Patents Index; Class E19, AN 1994-203029, XP002358435 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7704586B2 (en) | 2005-03-09 | 2010-04-27 | Degussa Ag | Plastic molded bodies having two-dimensional and three-dimensional image structures produced through laser subsurface engraving |
US7879938B2 (en) | 2006-07-17 | 2011-02-01 | Evonik Degussa Gmbh | Compositions comprising an organic polymer as the matrix and inorganic particles as the filler, process for the preparation thereof and applications of the same |
Also Published As
Publication number | Publication date |
---|---|
ZA200703580B (en) | 2008-08-27 |
AU2005300858A1 (en) | 2006-05-11 |
CA2580765A1 (en) | 2006-05-11 |
JP2008518809A (ja) | 2008-06-05 |
KR20070074597A (ko) | 2007-07-12 |
EP1807261A1 (de) | 2007-07-18 |
CN101022950A (zh) | 2007-08-22 |
BRPI0517270A (pt) | 2008-10-07 |
DE102004053817A1 (de) | 2006-05-11 |
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