EP1603989A1 - Zusammensetzung zur herstellung eines duroplasten mit thermochromen eigenschaften - Google Patents
Zusammensetzung zur herstellung eines duroplasten mit thermochromen eigenschaftenInfo
- Publication number
- EP1603989A1 EP1603989A1 EP04718647A EP04718647A EP1603989A1 EP 1603989 A1 EP1603989 A1 EP 1603989A1 EP 04718647 A EP04718647 A EP 04718647A EP 04718647 A EP04718647 A EP 04718647A EP 1603989 A1 EP1603989 A1 EP 1603989A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition according
- thermoset
- composition
- thermochromic
- temperature
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/08—Pressure rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0233—Soft rolls
Definitions
- thermoset with thermochromic properties
- the invention relates to a composition for producing a thermoset with thermochromic properties according to the preamble of patent claim 1 and the use of such a composition according to the preamble of patent claim 13.
- Thermosets are required for a variety of applications. These applications often concern areas in which temperature-critical processes are carried out and / or in which active temperature control is necessary. Such temperature controls have hitherto been carried out in a conventional manner, ie with a thermometer, with thermocouples or the like. Temperature measurement method and the associated electronics, that is to say, as a rule, in a very complex and indirect manner. Furthermore, as a rule, only a local temperature measurement, which is assumed to be representative of a larger area, is generally carried out by the temperature measurement methods which have been customary to date; an exact temperature determination over a large area is not possible with these conventional methods or is very complex.
- thermochromic compositions and laminates have been developed for such an application, which change their optical properties at certain temperatures.
- previously known compositions change from an opaque to a transparent form in the course of a temperature increase or decrease. Exact statements about a particular temperature cannot be made with it or only very roughly.
- US 4,617,350 and US 4,861,835 describe polymer compositions for use in optical and optoelectronic devices which are based on an acrylic acid or methacrylic acid ester base polymer which has been mixed with a copolymer of vinylidene fluoride and hexafluoroacetone. These resin compositions disclosed there have no color change properties, but only show an opaque-transparent transition.
- EP 0 677 564 describes a thermochromic, opaque-transparent composition which contains a dispersion in a vinyl chloride-vinyl acetate copolymer matrix resin and is obtained by mixing a reversibly thermochromic material with a sterically hindered amine compound.
- the coloring components are first processed into small particles there and then distributed in the form of a dispersion in the vinyl chloride-vinyl acetate copolymer matrix. In this way it is avoided that reactive resin starting components react to a considerable extent with coloring components, which up to now has always led to a considerable loss of color intensity and to a loss of sensitivity to a color change when the temperature changes.
- a disadvantage of the method disclosed there is the fact that the small particles are at least superficially attacked by the reactive components forming the resin, the disadvantages mentioned above also occurring depending on the curing speed of the resin.
- the process there can only be used for relatively few dyes, since these must be able to be processed into solids.
- the object of the present invention is to provide a composition for producing a thermoset with thermochromic properties, with which the above-mentioned disadvantages are avoided, the variety of uses of the dye and resin systems being expanded compared to the prior art.
- thermoset with thermochromic properties, which consists of a mixture of a thermochromic composite and starting components for producing the thermoset, the thermochromic composite each having at least one of the following components: dye, developer, lubricant, more surface-active Fabric and polymer.
- thermochromic component here consists of the dye-developer combination, including a suitable melting agent, the components being combined specifically for a specific color change at a specific temperature.
- the surfactant and / or the surfactant in combination with the melting agent advantageously enables the use of very numerous dye-developer systems, since the functional groups of the starting components are shielded by the surfactant or a combination of the surfactant with the melting agent Generation of the thermoset compared to the dye-developer system takes place.
- the surfactant components and lubricants can also be based on a high molecular structure.
- thermosetting plastic it is thus possible to use almost any dye-developer system, and the starting components for producing the thermosetting plastic are not subject to any restrictions either. Depending on the system used, it is only necessary to adapt the surfactant and, depending on the dye system, the melting agent to the particular requirements. According to the invention, the thermochromic composite in the mixture is essentially inert towards the starting components for producing the thermoset.
- thermochromic composite is obtained in that the composite or in particular the dye is surrounded by a protective shield made of a surfactant and / or a polymer and / or a mixture of surfactant and polymer consists.
- the protective shield is preferably constructed in the form of a micelle.
- the surface-active substance is present in the overall system in a concentration which has advantageously reached or exceeds the critical micelle concentration CMC in a polar solvent.
- Water is preferably used as the reference solvent, but there are no restrictions in this regard, and the solvent system used can be adapted at any time to the components of the thermochromic composite and to the starting components for producing the thermoset. The same applies to the pH value to be used and the reaction temperature, which are selected to suit the particular material system so that micelle formation can take place.
- at least the dye-developer system is advantageously shielded from the reactive groups of the starting components for producing the thermosetting plastic, so that destruction or denaturing of the coloring substances is avoided.
- the melting agent serves for better intermixing of the thermochromic composite with the starting components for producing the thermoset also shielding the dye-developer system from the resin-forming components. It also initiates the temperature-controlled change in the state of the complex.
- the structure of the lubricant ensures a balanced hydrophobicity-hydrophilicity balance.
- the functional groups are arranged in close proximity with a terminal hydrophobic structural part.
- Pre-condensates or monomers are also included here as polymer components in a broad sense. All starting components for the production of the thermosets can have more than one active functional group.
- the components of the composition are selected from one or more of the substances mentioned in Table 1 below:
- thermochromic composite according to the invention advantageously enables the production of a thermosetting plastic which, depending on the temperature, exhibits at least one clearly defined color change.
- the color change here corresponds to a defined color transition from a first color to a second color, a color transition in the form of mixed colors of the first and the second color not taking place, or at most being very subordinate.
- a color change from blue as the first color to red as the second color is possible without violet nuances.
- the composition according to the invention can advantageously be used to produce thermosets which exhibit a clearly defined color change at a certain transition temperature and can thus be used, for example, as indicators for critical temperatures without an interpretation of a color transition, which is often subject to subjective influences, must be made.
- the thermochromic composite can contain several dye-developer systems, each of which stands for at least one clearly defined color change, so that a large temperature range can be covered with several transition temperatures.
- preferred dye-developer systems in addition to at least one clearly defined color change, can carry out at least one further optically representable transition into transparency. In this way, depending on the dye-developer system, it is ensured that, depending on the respective temperature, only one dye-developer system appears optically active, so that mixed colors are caused by interference from different dye-developer systems be avoided.
- the use of the thermochromic composite in the composition according to the invention further enables the production of a thermoset in which, depending on the temperature, a, in particular reversible, sharp color change takes place within a clearly defined temperature interval.
- the temperature interval i.e. the temperature range within which the color change is completed is in a range of 15 K, preferably within a temperature interval of 8 K and particularly preferably within a temperature interval of 2 K.
- thermochromic composite of the composition according to the invention enables the production of a thermoset which has several color change switching points.
- this can be achieved in that a dye development system can carry out several color changes.
- multiple color change points are achieved in that the thermochromic composite has several dye developer systems, which are each active at different temperatures. It may also be possible that two or more dyes each have one or more developer (s) different temperatures show an activity with regard to the formation of different colors.
- the composition according to the invention can be used to produce an essentially isotropic thermoset which has the same color properties in all spatial directions.
- the orientation of the thermosetting plastic is irrelevant when processing the thermosetting plastic, which considerably simplifies processing of the thermosetting plastic into a product such as a molded part.
- At least one color change is irreversible. According to the invention, it is advantageously possible to use such an irreversible color change, for example for quality assurance or for another, in particular critical, temperature control.
- thermochromic composite can be functionally present within a supramolecular molecular structure.
- the melting agent and the surface-active substance are particularly suitable for this, a chemical compound of dye and / or developer and / or melting agent and / or surface-active substance within a structure, but here at different binding points, being encompassed by the invention.
- the object of the invention is achieved by using the abovementioned composition for producing housings, in particular bearings or pumps, scrapers, covers, in particular for machines, monitoring and display devices, and for visible temperature monitoring, in particular in adhesive technology and quality assurance ,
- 0.35 g of sulfobetaine with a chain length of 12 carbon atoms and 0.25 g of polyacrylic acid are added to 250 ml of distilled water.
- the mixture is heated to 85 ° C. and stirred at 750 rpm.
- 2.5 g of the dye complex are added.
- This consists of bisphenol A, crystal violet lactone and 1-octadecanol in a weight ratio of 2: 1: 15.
- the mixture is stirred at 85 ° C. for a further 2.5 hours.
- a stable emulsion forms.
- 30 g of an aqueous 7.5% solution of methylolmelamine are added over a period of 5 minutes. The mixture is stirred again for 3 hours.
- thermochromic composite (TC) formed can be filtered and dried in a simple manner.
- the TK is doped directly into a resin-hardener mixture (weight ratio 10: 4) with stirring, 4.5% by weight of TK being in the mixture.
- the finished thermoset or thermoset has stable thermochromic properties. It reversibly switches between blue and colorless at 60 ° C.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Saccharide Compounds (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10312464A DE10312464A1 (de) | 2003-03-20 | 2003-03-20 | Zusammensetzung zur Herstellung eines Duroplasten mit thermochromen Eigenschaften |
| DE10312464 | 2003-03-20 | ||
| PCT/EP2004/002416 WO2004083338A1 (de) | 2003-03-20 | 2004-03-09 | Zusammensetzung zur herstellung eines duroplasten mit thermochromen eigenschaften |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1603989A1 true EP1603989A1 (de) | 2005-12-14 |
| EP1603989B1 EP1603989B1 (de) | 2007-10-31 |
Family
ID=32921019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04718647A Expired - Lifetime EP1603989B1 (de) | 2003-03-20 | 2004-03-09 | Zusammensetzung zur herstellung eines duroplasten mit thermochromen eigenschaften |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7261680B2 (de) |
| EP (1) | EP1603989B1 (de) |
| JP (1) | JP4825941B2 (de) |
| AT (1) | ATE377062T1 (de) |
| DE (2) | DE10312464A1 (de) |
| WO (1) | WO2004083338A1 (de) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8092359B1 (en) * | 2002-11-13 | 2012-01-10 | Eastman Kodak Company | Fuser member and fuser member surface layer |
| US10287731B2 (en) * | 2005-11-08 | 2019-05-14 | Stowe Woodward Licensco Llc | Abrasion-resistant rubber roll cover with polyurethane coating |
| DE102006001487A1 (de) * | 2006-01-11 | 2007-07-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Elektrisch steuerbare Anzeigevorrichung mit elektrisch beheizbarer thermochromer Schicht |
| US20080121171A1 (en) * | 2006-11-28 | 2008-05-29 | Hulsey James | Temperature sensitive color changing cable apparatus |
| DE102007017791A1 (de) * | 2007-04-16 | 2008-10-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Komposit mit inversen thermochromen Eigenschaften, dieses enthaltender Verbundwerkstoff sowie dessen Verwendung |
| DE102007061513A1 (de) | 2007-12-20 | 2009-06-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Dotierkapseln, diese enthaltende Verbundsysteme sowie deren Verwendung |
| DE102008011444A1 (de) * | 2008-02-27 | 2009-09-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Thermochrom beschichtete Substrate und Verfahren zu deren Herstellung |
| DE102008040159A1 (de) | 2008-07-04 | 2010-01-07 | Voith Patent Gmbh | Elastischer Walzenbezug und damit versehene Walze |
| DE102009035363A1 (de) * | 2009-07-30 | 2011-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Piezochromes Material, piezochromer Verbundwerkstoff und piezochromer Sensor |
| EP2834409B1 (de) | 2012-04-06 | 2020-01-15 | Stowe Woodward Licensco, LLC | Hydrophober und/oder amphiphober walzenbezug |
| US9133362B2 (en) * | 2012-07-16 | 2015-09-15 | Ppg Industries Ohio, Inc. | Coating composition having mechanochromic crystals |
| US9540769B2 (en) | 2013-03-11 | 2017-01-10 | International Paper Company | Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press |
| US9797788B2 (en) | 2014-05-02 | 2017-10-24 | International Paper Company | Method and system associated with a sensing roll including pluralities of sensors and a mating roll for collecting roll data |
| US10378980B2 (en) | 2014-05-02 | 2019-08-13 | International Paper Company | Method and system associated with a sensing roll and a mating roll for collecting roll data |
| US9804044B2 (en) | 2014-05-02 | 2017-10-31 | International Paper Company | Method and system associated with a sensing roll and a mating roll for collecting data including first and second sensor arrays |
| EP3035132B1 (de) * | 2014-12-15 | 2017-07-19 | The Swatch Group Research and Development Ltd. | Ausstattungsungselement mit Drucksensor |
| US9696226B2 (en) | 2015-06-10 | 2017-07-04 | International Paper Company | Count-based monitoring machine wires and felts |
| US9677225B2 (en) | 2015-06-10 | 2017-06-13 | International Paper Company | Monitoring applicator rods |
| US10370795B2 (en) | 2015-06-10 | 2019-08-06 | International Paper Company | Monitoring applicator rods and applicator rod nips |
| US9816232B2 (en) | 2015-06-10 | 2017-11-14 | International Paper Company | Monitoring upstream machine wires and felts |
| US9534970B1 (en) | 2015-06-10 | 2017-01-03 | International Paper Company | Monitoring oscillating components |
| US9863827B2 (en) | 2015-06-10 | 2018-01-09 | International Paper Company | Monitoring machine wires and felts |
| US10345278B2 (en) * | 2016-09-23 | 2019-07-09 | Chromatic Technologies, Inc. | High pressure processing pressure sensor |
| US12012946B2 (en) * | 2018-05-11 | 2024-06-18 | Lintec Of America, Inc. | Thermochromic actuators |
| DE102019126076A1 (de) * | 2019-09-27 | 2020-08-06 | Voith Patent Gmbh | Pressmantel, dessen Verwendung sowie Schuhpresse und Maschine |
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| JPS4924154B1 (de) * | 1969-10-07 | 1974-06-20 | ||
| US4250605A (en) * | 1978-01-19 | 1981-02-17 | The Carborundum Company | Biaxially stressed fluorinated polymer roll cover and method for making same |
| CA1240883A (en) * | 1985-01-30 | 1988-08-23 | Norikazu Nakasuji | Thermochromic textile material |
| JPH078931B2 (ja) * | 1985-12-12 | 1995-02-01 | パイロットインキ 株式会社 | 色彩記憶性樹脂組成物 |
| US4666949A (en) * | 1986-01-31 | 1987-05-19 | Matsui Shikiso Chemical Co., Ltd. | Thermochromic polyurethane foam |
| DE3881046T2 (de) * | 1988-09-09 | 1993-11-04 | Akzo Nv | Thermochrome beschichtung. |
| US5462705A (en) * | 1988-10-27 | 1995-10-31 | Labsphere, Inc. | Method of forming diffusely reflecting sintered fluorinated long-chain addition polymers doped with pigments for color standard use |
| JP2939489B2 (ja) * | 1989-12-08 | 1999-08-25 | 日本ゼオン株式会社 | ゴムロールおよびゴムロール用ゴム組成物 |
| JP3030471B2 (ja) * | 1991-03-13 | 2000-04-10 | 大塚化学株式会社 | インドリノスピロベンゾチオピラン誘導体とその開環型異性体を含むことからなる結晶、その製造方法及び該結晶からなるピエゾクロミック材料 |
| US5352649A (en) * | 1991-07-04 | 1994-10-04 | The Pilot Ink Co., Ltd. | Thermochromic laminate member, and composition and sheet for producing the same |
| US5142759A (en) * | 1991-08-27 | 1992-09-01 | Beloit Corporation | Roll cover apparatus |
| JPH07501842A (ja) * | 1991-12-09 | 1995-02-23 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフトング | 熱変色性効果を有する顔料およびその製造方法 |
| GB2274428B (en) * | 1993-01-20 | 1996-08-21 | Portals | Security threads |
| US5997849A (en) * | 1993-12-29 | 1999-12-07 | Chromatic Technologies, Inc. | Thermochromic ink formulations, nail lacquer and methods of use |
| JP3306607B2 (ja) * | 1994-03-25 | 2002-07-24 | パイロットインキ株式会社 | 熱変色性遮光−透光性組成物及びこれを用いた積層体及び前記積層体を用いた内部隠顕立体物 |
| US6145512A (en) * | 1994-04-08 | 2000-11-14 | Daley; Scott G. | Colored and decorative nail files and methods for making them |
| JPH07290824A (ja) * | 1994-04-22 | 1995-11-07 | Pilot Ink Co Ltd | 熱変色性積層体 |
| US5592875A (en) * | 1994-09-16 | 1997-01-14 | Stowe Woodward Licensco, Inc. | Roll having means for determining pressure distribution |
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| US5606983A (en) * | 1994-12-02 | 1997-03-04 | Monty; Lawrence P. | Hair care appliance with thermochromic hair curlers and method of manufacturing same |
| US5723178A (en) * | 1995-06-30 | 1998-03-03 | J.R. Moon Pencil Co., Inc. | Method for making thermochromic writing instruments using topically applied thermochromic pigments |
| JPH09176628A (ja) * | 1995-12-27 | 1997-07-08 | Pilot Ink Co Ltd | 可逆性熱変色組成物の発色時の耐光性を向上する方法 |
| GB2315760B (en) * | 1996-07-25 | 2001-01-10 | Merck Patent Gmbh | Thermochromic polymerizable mesogenic composition |
| JPH1121464A (ja) * | 1997-06-27 | 1999-01-26 | Pilot Ink Co Ltd | 可逆的熱変色性を有する成形用樹脂組成物及びそれを用いた成形体 |
| GB9716397D0 (en) * | 1997-08-01 | 1997-10-08 | Unilever Plc | Toothbrush |
| CA2253160A1 (en) * | 1997-10-31 | 1999-04-30 | The Pilot Ink Co., Ltd. | Color-change materials |
| DE19757185B4 (de) * | 1997-12-22 | 2005-05-25 | Voith Paper Patent Gmbh | Elastischer Belag für eine Kalanderwalze, damit versehene Kalanderwalze und deren Anwendung |
| JP2931973B1 (ja) * | 1998-02-25 | 1999-08-09 | 工業技術院長 | 一硫化サマリウムピエゾクロミック薄膜の製法 |
| JP3805563B2 (ja) * | 1998-08-21 | 2006-08-02 | 株式会社リコー | 現像ローラ、その製造方法、それを用いた画像形成装置及びそれに用いる現像ユニット、プロセスユニット |
| JP2000072972A (ja) * | 1998-08-31 | 2000-03-07 | Pilot Ink Co Ltd | 可逆熱変色性成形用樹脂組成物及びそれを用いた成形体 |
| JP2000073050A (ja) * | 1998-08-31 | 2000-03-07 | Pilot Ink Co Ltd | 可逆熱変色性液状組成物及びそれを用いた可逆熱変色性積層体 |
| US6261469B1 (en) * | 1998-10-13 | 2001-07-17 | Honeywell International Inc. | Three dimensionally periodic structural assemblies on nanometer and longer scales |
| CA2318700A1 (en) * | 1999-09-17 | 2001-03-17 | Katsuyuki Fujita | Thermochromic microencapsulated pigments |
| AU2001266290A1 (en) * | 2000-07-12 | 2002-02-05 | Skyrad Ltd. | Thermochromic composition |
| JP4567859B2 (ja) * | 2000-08-09 | 2010-10-20 | パイロットインキ株式会社 | 耐光性を向上した可逆性熱変色組成物とこれを用いた製品 |
| JP2002234119A (ja) * | 2000-12-04 | 2002-08-20 | Pilot Ink Co Ltd | 可逆熱変色遮光性−透光性積層体 |
-
2003
- 2003-03-20 DE DE10312464A patent/DE10312464A1/de not_active Withdrawn
- 2003-04-17 US US10/417,622 patent/US7261680B2/en not_active Expired - Fee Related
-
2004
- 2004-03-09 EP EP04718647A patent/EP1603989B1/de not_active Expired - Lifetime
- 2004-03-09 WO PCT/EP2004/002416 patent/WO2004083338A1/de not_active Ceased
- 2004-03-09 DE DE502004005361T patent/DE502004005361D1/de not_active Expired - Lifetime
- 2004-03-09 AT AT04718647T patent/ATE377062T1/de active
- 2004-03-09 JP JP2006504607A patent/JP4825941B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004083338A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4825941B2 (ja) | 2011-11-30 |
| US7261680B2 (en) | 2007-08-28 |
| WO2004083338A1 (de) | 2004-09-30 |
| DE10312464A1 (de) | 2004-09-30 |
| EP1603989B1 (de) | 2007-10-31 |
| JP2006522179A (ja) | 2006-09-28 |
| US20030224917A1 (en) | 2003-12-04 |
| DE502004005361D1 (de) | 2007-12-13 |
| WO2004083338A8 (de) | 2006-09-14 |
| ATE377062T1 (de) | 2007-11-15 |
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