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Pearl lustre pigments / R. Balaji Narasimhan in PAINTINDIA, Vol. LI, N° 6 (06/2001)
[article]
Titre : Pearl lustre pigments Type de document : texte imprimé Auteurs : R. Balaji Narasimhan, Auteur Année de publication : 2001 Article en page(s) : p. 67-72 Note générale : Bibliogr. Langues : Anglais (eng) Tags : 'Matériau revêtement' Peinture 'Pigment minéral' nacré' Fabrication 'Plomb carbonate' 'Bismuth oxychlorure' Mica 'Titane oxyde' 'Fer Silice Alumine 'Structure lamellaire' Index. décimale : 667.9 Revêtements et enduits Résumé : The history of pearl lustre pigments began 1656 in Paris when Japan isolated the silvery substance of the inside of fish scales and developed a suspension with silver lustre. The first pearl lustre suspension with its brilliant lustre was called Essenced Orient. It contained the same substance, which was later called natural fish silver. In the 17th century, buttons made of mother of pearl became popular and led to an upswing in the button industry in various European countries. The introduction of poly methyl methacrylate and unsaturated polyester in button manufacturing brought on the search for synthetic pearl lustre pigments and replaced fish silver and mother of pearl. The most valuable of all newly developed pearl lustre pigments proved to be basic lead carbonate. Bismuth oxy chloride, first implemented for the reflection layers, grew to the second most important synthetic pearl lustre pigment. Around 1960, a new pigment generation on the basis of metal oxide coated mica platelets was introduced to the market. The first of these pearl lustre pigments replace basic lead carbonate from its application areas were titanium dioxide mica pigments. Today there are a multitude of variations of such pigments for many decorative and technical applications on the market. The use of oxides such as iron oxides, chromium oxide or mixed oxides instead of titanium dioxide permits a steady growing application of artificial pearl lustre effects. This paper gives a brief idea about the manufacture and properties of pearl lustre pigments. Note de contenu : - Manufacturing and properties of pearl lustre pigments
- Natural pearl luster pigments
- Basic lead carbonate : High refractive index – Good transparency without self-colour – Platelet structure with smooth surface – Optimal thickness – Manufacturing and properties
- Bismuth oxychloride
- Metal oxide mica pigments : Pigment particle dimensions – Structural principles
- Manufacturing process for titanium dioxide mica pigments : -Homogeneous hydrolysis – Titration method
- Iron (III) oxide mica pigments : Manufacturing and properties
- Combination pigments
- New pearl luster pigments based on silica and alumina flakes : Effect pigments based on silica flakes – Effect pigments based on alumina flakes
- Functional metal oxide mica pigments : Bright conductive pigments – Manufacture and structural principles – Characteristics of conductivity
- Magnetic pigmentsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12608
in PAINTINDIA > Vol. LI, N° 6 (06/2001) . - p. 67-72[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001267 - Périodique Bibliothèque principale Documentaires Disponible Development and application of intelligent drug delivery systems in dermatology and cosmetics / Sylvia Marton in IFSCC MAGAZINE, Vol. 6, N° 1 (01-02-03/2003)
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Titre : Development and application of intelligent drug delivery systems in dermatology and cosmetics Type de document : document électronique Auteurs : Sylvia Marton, Auteur ; Gabriella Csoka, Auteur ; Istvan Racz, Auteur Année de publication : 2003 Article en page(s) : p. 29-36 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétiques
Dermatologie
Dermo-cosmétologie
Diffusion (physique)Tags : 'Cholesteryl oleyl carbonate' 'Intelligent drug delivery system' Melotose 'Pulsatile 'Responsive Thermoresponsability 'TTS patch' Index. décimale : 668.5 Parfums et cosmétiques Résumé : The development of new intelligent drug delivery systems is a relatively recent technology. Sometimes, it is a requirement to liberate the active material while symptoms develop and continue to exist. For such purposes self-regulated, responsive, pulsatile systems are ideal. Several new polymeric auxiliary materials have appeared and in this article new manufacturing processes are presented to produce thermoresponsive intelligent drug delivery systems using these materials. The types, the development and application of devices in dermatology and cosmetics are discussed with special attention to the production, characterization and testing of some types of transdermal therapeutic soft-patch systems (membrane-controlled, matrix-controlled). The matrix and the film were produced from Metolose, a cellulose derivative, whereas the thermoresponsive property was achieved via the use of cholesteryl oleyl carbonate (COC).
The « on-off » state-realized by the sol-gel transition or smetic to cholesteric, cholesteric-isotropic liquid phases changes –was tested by static and dynamic methods by changing the temperature. Attention was given to the fact that the presence of inappropriate auxiliary material may destroy and cancel pulsatile drug delivery due to absorption or incompability.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10615
in IFSCC MAGAZINE > Vol. 6, N° 1 (01-02-03/2003) . - p. 29-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003878 - Périodique Bibliothèque principale Documentaires Disponible A new generation of calcium carbonates to optimise pigment utilisation / Anthony Page in PAINTINDIA, Vol. XLV, N° 4 (04/1995)
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Titre : A new generation of calcium carbonates to optimise pigment utilisation Type de document : texte imprimé Auteurs : Anthony Page, Auteur Année de publication : 1995 Article en page(s) : p. 29-32 Langues : Anglais (eng) Tags : 'Pigment minéral' 'Matière charge' Peinture 'Titane Oxyde' 'Calcium Carbonate' Index. décimale : 667.9 Revêtements et enduits Résumé : Two calcium carbonate extenders manufactured using unique new processes are presetend. Their outstanding properties, easy dispersion, fineness and low binder absorption offer paint technicians new reformulating possibilities in optimizing pigment utilization without the problems associated with fine convetional extenders of various chemical compositions currently available. Note de contenu : - High brightness
- Decrease critical PVC
- Hinder re-aggolomeration
- Improved pigment dispersion
- Experimental : Emulsion paints - Oil-bound paints
- Water-reductible road-marking paintsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13576
in PAINTINDIA > Vol. XLV, N° 4 (04/1995) . - p. 29-32[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 006453 - Périodique Bibliothèque principale Documentaires Disponible New controlling processes in SMC applications / Jean-Claude Padoy in JEC COMPOSITES MAGAZINE, N° 12 (10-11/2004)
[article]
Titre : New controlling processes in SMC applications Type de document : texte imprimé Auteurs : Jean-Claude Padoy, Auteur Année de publication : 2004 Article en page(s) : p. 78-80 Langues : Anglais (eng) Tags : 'Fibre minérale' 'Méthode ultrasonore' 'Capteur température' pression' 'Commande processus' Cinétique 'Durcissement(matière plastique)' 'Préimprégné feuille' 'Composite hybride' 'Calcium carbonate' 'Matériau renforcé' Dispersion verre' renforcé fibre' 'Polymère insaturé' Polyester composite' Index. décimale : 668.4 Plastiques, vinyles Résumé : Heat flux sensors have many applications in composite cure control. Thanks to recent developments, automatic cure cycle control has been applied successfully to industrial SMC and BMC presses This technology allows significant improvements in productivity with a safe cure level. Note de contenu : - Monitoring
- Different cure-monitoring techniques
- SMC process control : Experimental justification of heat-flux use for cure control
- Statistical process control (SPC) and wireless communicationsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14106
in JEC COMPOSITES MAGAZINE > N° 12 (10-11/2004) . - p. 78-80[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003440 - Périodique Bibliothèque principale Documentaires Disponible 003460 - Périodique Bibliothèque principale Documentaires Disponible