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Natural formulations with non-nano mineral UV filters / Blanca Motos-Pérez in PERSONAL CARE EUROPE, Vol. 14, N° 2 (04/2020)
[article]
Titre : Natural formulations with non-nano mineral UV filters Type de document : texte imprimé Auteurs : Blanca Motos-Pérez, Auteur Année de publication : 2020 Article en page(s) : p. 119-122 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse sensorielle
Caractérisation
Chimie écologique
Cosmétiques
Emulsions -- Emploi en cosmétologie
Formulation (Génie chimique)
Formulation (génie chimique) -- Stabilité
Granulométrie
Photostabilité
Produits antisolaires
Rayonnement ultraviolet A
Rayonnement ultraviolet B
Règlements (droit administratif)Index. décimale : 668.5 Parfums et cosmétiques Résumé : ADPCosmetics presents two natural cosmetic formulations that follow Green Chemistry Principles. Non nanometric UV filters included in these formulations are multifunctional and efficient, to minimise the need of ingredients.
EnhanceU filters are manufactured with ADParticles technology that is environmentally friendly and efficient in terms of energy, raw materials and (absence of) solvent consumption. Therefore, the two formulations here presented, named Feel Young and Feel Warm, are natural w/o and o/w emulsions respectively, both for skin care and suncare. enhanceU-S and enhanceUT-warm filters allow obtaining SPF30-50 while efficiently protecting from UVA radiation and are appropriate options when looking for ingredients for sustainable cosmetics.Note de contenu : - Natural formula for skin care and sun care : Feel young
- Natural formula for skin care and sun care with colour : Feel warm
- Mineral UV filters that are nonnanometric and protect from UVB and UVA radiation : High-SPF and broad-spectrum protection - Photostability - Stability - Sensoriality - Manipulation and safety - Regulations - Natural formulas
- Fig. 1 : Feel young cream w/o formulation
- Fig. 2 : Particle size distribution of enhanceU-S by dynamic light scattering
- Fig. 3 : Feel warm daily cream with colour
- Fig. 4 : Photostability of enhanceU mineral filters
- Table 1 : Characterisation of natural formulas after 3 months' stability (mean values)
- Table 2 : EnhanceU filtersPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33960
in PERSONAL CARE EUROPE > Vol. 14, N° 2 (04/2020) . - p. 119-122[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21621 - Périodique Bibliothèque principale Documentaires Disponible A new colorimetric assay for antioxidant capacity and photostability / Elisabet Fernández-GarcÃa in COLORATION TECHNOLOGY, Vol. 132, N° 3 (06/2016)
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Titre : A new colorimetric assay for antioxidant capacity and photostability Type de document : texte imprimé Auteurs : Elisabet Fernández-GarcÃa, Auteur ; Hayat Heluani-Gahete, Auteur ; Ralf E. Wellinger, Auteur Année de publication : 2016 Article en page(s) : p. 195-200 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antioxydants
Bleu de leucométhylène
Bleu de méthylène
Colorimétrie
PhotostabilitéIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The antioxidant capacity of cysteine, glutathione, N-acetylcysteine, and ascorbic acid to reduce Methylene Blue to colourless Leucomethylene Blue was analysed. Interestingly, transient exposure of Leucomethylene Blue to sunlight resulted in a reversible oxidation reaction and thus, provided a fast, easy, and simple quantitative assay to determine antioxidant capacity and photostability of biologically relevant antioxidants. Note de contenu : - MB to MBH2 reduction capacity correlates with antioxidant redox potential
- Determination of antioxidant photostability by MBH2 oxidation upon sunlight exposureDOI : 10.1111/cote.12210 En ligne : https://drive.google.com/file/d/1s2D0yhapwm3hhKKCAZQuoqc9OuyAB99C/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26350
in COLORATION TECHNOLOGY > Vol. 132, N° 3 (06/2016) . - p. 195-200[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18101 - Périodique Bibliothèque principale Documentaires Disponible New non-isocyanate moisture curable silylated resin for protective coating applications / Michael Seeber in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4635 (10/2017)
[article]
Titre : New non-isocyanate moisture curable silylated resin for protective coating applications Type de document : texte imprimé Auteurs : Michael Seeber, Auteur ; Nayeem Soad, Auteur ; Vikram Kumar, Auteur ; Dean Kondos, Auteur ; Antonio Chaves, Auteur ; Martin Wusik, Auteur Année de publication : 2017 Article en page(s) : p. 29-34 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosifs
Anticorrosion
Dépôt par pulvérisation
Essais de résilience
Essais dynamiques
Flexion (mécanique)
Formulation (Génie chimique)
Isocyanates -- Suppression ou remplacement
Métaux -- Revêtements protecteurs
Photostabilité
Polyuréthanes
Réticulation à l'humidité
Revêtement monocomposant
SilylationLa silylation est l'introduction d'un groupe silyle, généralement substitué (R3Si–), dans une molécule.
Stabilité au stockage
Surfaces -- Nettoyage
Vernis
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : Two-component (2K) polyurethane coatings are widely used as the top layer of protective coatings systems to provide performance benefits, such as UV durability, flexibility and chemical resistance. However, these 2K products are coming under increasing scrutiny due to the presence of unreacted isocyanate in the uncured formulation. There have been efforts made ta develop non-isocyanate based coatings however, it is a challenge to do so while providing ail performance benefits of a 2K Polyurethane coating. A new non¬isocyanate moisture curable silylated resin for protective coating applications is discussed in this paper. This resin is targeted to enable the coating formulator ta develop a one¬component (1K) non-isocyanate coating that provides performance on par with the current 2K polyurethane coatings. Some of the key coating properties that were studied and are . discussed herein are UV durability, flexibility, corrosion resistance and chemical resistance. Note de contenu : - EXPERIMENTAL : Metal cleaning process - Spray coating application - Design of experiments/formulation - Testing protocols - Chemical resistance test
- RESULTS AND DISCUSSION : Viscosity and shelf stability of Y-19243 resin and model formulations - Flexibility and impact resistance of Y-19243 resin - Outdoor durability and chemical resistance - Corrosion resistance
- TABLES : 1. Basic clear coat sample formulation - 2. Grind paste sample formulation using TiO2 and Y-19243 - 3. Grind paste sample formulation using TiO2 and Y-19243 with a pigment binder of 0.35 - 4. Cross hatch adhesion values after seven day cure at room temperature - 5. Pass/fail results for 3/4" Mandrel bend test on CRS substrates - 6. Summary of colour and gloss values before and after exposure to QUV-B weathering for eight weeks
- FIGURES : 1. Konig hardness values as a function of # oscillations vs room temperature cure time over 60 days - 2. Evolutions of viscosity (cP) as measured at two week time intervals after ageing in a 50°C oven. Measurements were taken of Y-19243 resin as produced, as well as model clear formulations - 3. Visual images of mandrel bend tests. A. Exp. clear, no catalyst B; Exp clear with catalyst ; C. Exp white, no catalyst, with catalyst ; E. Comm 1K-A ; F. Comm 1K-B ; G. 2K PU - 4. Frontal and reverse impact resistance values in lbs force for all model formulations and commercial controls. Panels were tested after 30 days of room temperature cure - 5. Chemical resistance ratings scale - 6. Visual representation of areas of cured films exposed to all solvents tested - 7. Corrosion resistance after 1500 hr exposure to NSS. a) Com. 1K-A ; b) Comm. 1K-B - c) Comm. 2K PU ; d) Exp white, no catalyst ; e) Exp white, catalystEn ligne : https://drive.google.com/file/d/1LqialbhrHGYZelQtXxUle97cwrueSbAY/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29327
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 207, N° 4635 (10/2017) . - p. 29-34[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19293 - Périodique Bibliothèque principale Documentaires Disponible New waterborne systems bring fast return-to-service and excellent aesthetics / Zheng Shiying in COATINGS WORLD, Vol. 23, N° 11 (11/2018)
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Titre : New waterborne systems bring fast return-to-service and excellent aesthetics Type de document : texte imprimé Auteurs : Zheng Shiying, Auteur ; Robert Rasing, Auteur ; Nergiz Bozok, Auteur Année de publication : 2018 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Amines Une amine est un composé organique dérivé de l'ammoniac dont certains hydrogènes ont été remplacés par un groupement carboné. Si l'un des carbones liés à l'atome d'azote fait partie d'un groupement carbonyle, la molécule appartient à la famille des amides. Découvertes en 1849, par Wurtz les amines furent initialement appelées alcaloïdes artificiels.
On parle d'amine primaire, secondaire ou tertiaire selon que l'on a un, deux ou trois hydrogènes substitués.
Par exemple, la triméthylamine est une amine tertiaire, de formule N(CH3)3.
Typiquement, les amines sont obtenues par alkylation d'amines de rang inférieur. En alkylant l'ammoniac, on obtient des amines primaires, qui peuvent être alkylées en amines secondaires puis amines tertiaires. L'alkylation de ces dernières permet d'obtenir des sels d'ammonium quaternaire.
D'autre méthodes existent : 1. Les amines primaires peuvent être obtenues par réduction d'un groupement azoture, 2. Les amines peuvent aussi être obtenues par la réduction d'un amide, à l'aide d'un hydrure, 3. L'amination réductrice permet l'obtention d'amines substituées à partir de composés carbonylés (aldéhydes ou cétones), 4. Les amines primaires peuvent être obtenues par la réaction de Gabriel.
Matériaux cimentaires -- Revêtements:Matériaux cimentaires -- Peinture
Photostabilité
Primaire (revêtement)
Résistance au jaunissement
Résistance au rayonnement ultraviolet
Réticulants
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : The coating industry is constantly facing the challenges of more stringent low emission requirements and fulfilling the need to improve productivity and reduce cost while maintaining high coating performance. Technology advancements equipped the industry with new waterborne epoxy systems that deliver fast cure speed, improved coating robustness and better aesthetics over the service life. Thanks to low volatile organic content (VOC) and excellent coating properties, waterborne epoxy coatings have become a commercially important technology and gained wide acceptance as environmentally friendly alternatives for solvent-borne and solvent-free epoxy systems.
This paper highlights the development of a new waterborne epoxy curing agent based on novel amine technology. The product provides extremely fast cure speed even under adverse conditions such as low temperature and high humidity; superior adhesion to substrates when used as a primer, particularly on damp concrete; and excellent aesthetics as a topcoat. This enables coating formulators to design new coating concepts such as a one-day floor system consisting of a primer and topcoat applied on the same day that delivers walk-on readiness the next morning. This paper discusses model formulations based on the new curing agent, key features, and benefits of the new waterborne system.Note de contenu : - New amine building block eesign
- Miller-Macosko modeling
- Fast property development of poly HCA
- Fundamental studies of fast cure mechanism of poly HCA
- Yellowing resistance of poly HCA
- Poly HCA as a fast cure co-amine in combination with IPD
- New Fast Cure Waterborne Curing Agent
- Primer Performance
- One-Day Flooring System
- Fig. 1 : Miller-Macosko modeling results of molecular weight versus conversion
- Fig. 2 : Miller-Macosko modeling results of effective strands versus conversion
- Fig. 3 : Viscosity profile of Poly HCA and other benchmark amines
- Fig. 4 : Conversion vs. temperature plot of IPD and Poly HCA
- Fig. 5 : Epoxy conversion vs time at 1644 nm
- Fig. 6 : Primary amine conversion at 2033 nm
- Fig. 7 : Delta yellowing index comparison
- Fig. 8 : UV resistance of the Prototype A, WB-C1 and SF-epoxy
- Table 1 : Data used for and results from Miller-Macosko model calculations
- Table 2 : Coating property summary
- Table 3 : Degree of cure by DSC
- Table 4 : Property summary of Poly HCA/IPD blend, in comparison with IPD and Poly HCA
- Table 5 : Primer Based on New Waterborne Curing Agent Prototype A
- Table 6 : Model primer performance properties at 10°C/60% RH
- Table 7 : Primer performance on dry and wet concrete at 10°C/60% RH
- Table 8 : Primer performance at 10°C and various relative humidity conditions on dry concrete
- Table 9 : Primer performance at increased thickness on dry concrete at 10°C/60% RH
- Table 10 : Overcoatability of Prototype A primer vs solvent-free primer on dry concrete at 23°C/60% RH
- Table 11 : Model white paint formulation based on Prototype A and LER
- Table 12 : Performance of white topcoat based on Prototype A and diluted LER at 10 °C/60% RH
- Table 13 : Performance characteristics of a model floor system based on Prototype A at 10 °C/60% RHEn ligne : https://www.coatingsworld.com/issues/2018-11-01/view_features/new-waterborne-sys [...] Format de la ressource électronique : Html Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32513
in COATINGS WORLD > Vol. 23, N° 11 (11/2018)[article]A novel approach for enhanced color intensity and uniformity in leather dyeing / Sujata Mandal in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 6 (06/2018)
[article]
Titre : A novel approach for enhanced color intensity and uniformity in leather dyeing Type de document : texte imprimé Auteurs : Sujata Mandal, Auteur ; Jayanthi Durga, Auteur ; G. Jothi, Auteur ; Malathy Jawahar, Auteur ; Chellappa Muralidharan, Auteur Année de publication : 2018 Article en page(s) : p. 176-182 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse spectrale
Cuirs et peaux -- Teinture
Photostabilité
Résistance à l'abrasion
Résistance à la transpiration
Résistance aux frottements humides
Solidité de la couleurIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Dyeing is a significant process step in leather making that is carried out to enhance the aesthetics of the tanned hides and skins. Due to the heterogeneous nature of the skin matrix, obtaining leathers with consistent color is challenging. The present study describes application of hydrotalcite-like inorganic synthetic material (HTLM) during leather dyeing to bring color uniformity among leathers by maximizing the color intensity within the skin and among the skins processed in a batch. The HTLM has been used in an interim step between two phases of dyeing that enhanced shade intensity as well as color consistency through modification of the leather surface chemically. The efficacy of the HTLM for enhanced color intensity and uniformity in leather has been investigated. Influence of the HTLM on the physicals characteristics like, perspiration, color fastness to light and dry/wet rub are also studied. Note de contenu : - Materials
- Methods
- Color fastness testing. Fastness to dry and wet rub
- Fastness to light
- Perspiration
- Spectroscopic assessment of color intensity and uniformity
- Characterization of the HTLMEn ligne : https://drive.google.com/file/d/1CDZaPfJCQjnefo3Te9Sro4NC9GcEbmFv/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30686
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIII, N° 6 (06/2018) . - p. 176-182[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19986 - Périodique Bibliothèque principale Documentaires Disponible A novel approach for lightfast wet-white leather manufacture based on sulfone syntan-aluminum tanning agent combination tannage / Zhang Long in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 6 (06/2018)
PermalinkNovel light stabilisers for waterborne alkyd coatings / Yung-Chi Yang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4596 (05/2014)
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PermalinkNovel light stabilizers for environmental friendly coatings / Yung-Chi Yang in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)
PermalinkNovel methods for dyeing the epidermis of bamboo culms and their colour fastness / Min-Jay Chung in COLORATION TECHNOLOGY, Vol. 130, N° 2 (04/2014)
PermalinkA novel non-pickling combination tanning for chrome-free leather based on reactive benzesulphonate and tannic acid / Yuanhang Xiao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 1 (01/2020)
PermalinkOptimisation of process parameters of Alpaca wool printing with Juglans regia natural dye / Martinia Glogar in COLORATION TECHNOLOGY, Vol. 136, N° 2 (04/2020)
PermalinkOrganic vs inorganic light stabilizers for waterborne clear coats : a fair comparison / Christian Schaller in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 4 (07/2012)
PermalinkOrganoclays assisted vat and disperse dyeing of poly(ethylene terephthalate) nanocomposite fabrics via melt spinning / Aballa A. Mousa in COLORATION TECHNOLOGY, Vol. 134, N° 2 (04/2018)
PermalinkL'origan, un actif éclaircissant naturel / Julie Droux in EXPRESSION COSMETIQUE, N° Hors série (12/2012)
PermalinkPermalinkPhotocuring and photostabilisation of coatings for outdoor use / Sonia Megert in SURFACE COATINGS INTERNATIONAL. PART A : COATINGS JOURNAL, Vol. 87 A, 06 (07/2004)
PermalinkPhotostabilisation : for safe, pleasant sunscreens / Fiona Feng in PERSONAL CARE EUROPE, Vol. 12, N° 5 (11/2018)
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