Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
[article]
Titre : Going the extra mile with hectorite clay Type de document : texte imprimé Année de publication : 2022 Article en page(s) : p. 6-7 Langues : Anglais (eng) Catégories : Composés inorganiques
Dermo-cosmétologie
Facteur de protection solaire
Gels -- Emploi en cosmétologie
Hectorite
Ingrédients cosmétiques
Peau -- Soins et hygiène
Produits antisolaires
Résistance à l'humidité:Résistance à l'eauIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Sunscreen systems are often exposed to extreme conditions yet must consistently deliver the active ingredient to provide uniform protection. With the popularity of clean beauty, mineral sunscreens are gaining more attentions as they are more sensitive skin friendly and environment friendly.
In response to today’s consumers’ needs, Elementis offers unique hectorite clay-based ingredients and developed two sunscreen formulations with pure inorganic UV filters that allow formulators to go beyond just UV protection and solve their formulating challenges.Note de contenu : - Improved system stability with inorganic UV filters
- Improved application
- Boost SPF and water resistance
- Benefits of bentone gel, bentone luxe and bentone hydroclay
- What is hectorite ?En ligne : https://drive.google.com/file/d/1zC0Pa7l8E8rMH0FqEagLqy06caH39V1f/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38701
in GLOBAL PERSONAL CARE > Vol. 23, N° 10 (11/2022) . - p. 6-7[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23657 - Périodique Bibliothèque principale Documentaires Disponible Green wood protection / Dirk Mestach in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4477 (06/2004)
[article]
Titre : Green wood protection Type de document : texte imprimé Auteurs : Dirk Mestach, Auteur ; Derrick Tweene, Auteur Année de publication : 2004 Article en page(s) : p. 18-21 Langues : Anglais (eng) Catégories : Analyse thermomécanique dynamique
Bois -- Revêtements protecteurs
Chromatographie sur gel
Formulation (Génie chimique)
Polyacryliques
Polyaddition
Résistance à l'humidité:Résistance à l'eau
Résistance chimique
Stabilisants (chimie)
Surfactants
Vernis en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : The authors explain which acrylic dispersions with polymer bound coatings are suitable for wood finishes.
Emulsion free-radical polymerisation has proven to be an environmentally friendly method for the production of a wide range of polymeric dispersions. In the emulsion polymerisation process, monomer is polymerised in an aqueous medium containing surfactant micelles. Surfactant plays a dual role in the process; it not only provides the locus of polymerisation but also stabilises the polymer particles.
Recent changes in the regulations concerning the emission of organic solvents in the European Community have led to a growing interest in the use of polymer dispersions in high performance waterborne coating systems.
One-pack systems, using the current state-of-the-art technology of combining carbonyl-hydrazide crosslinking with control of the morphology of the particles in the polymeric dispersion, have been studied extensively.
These acrylic dispersions are synthesised using conventional surfactants as an integral part of recipe. Even though some grafting might occur during the polymerisation, the surfactants are predominantly adsorbed onto the surface of the polymer particles.
The presence of surfactant has an influence on the final properties of the paint film. During film-formation coalescence is caused by self-diffusion and results in polymer inter-penetration. This process requires the disappearance of surfactant from the surface of the polymer particles.
Because most surfactants are not fully compatible with the polymer matrix, surfactant will have the tendency to migrate to the film-air interface. Therefore, the surface structure of a film cast from a dispersion will be different from its internal structure.
Because of the non-volatile nature of the surfactent, a permanent reduction of surface hardness is observed. In coatings this effect can lead to bad blocking resistance, inferior sanding properties and dirt pickup. In some cases the surfactant is completely exuded from the film.
As a result resin chemists have been actively pursuing alternatives for conventional low molecular weight surfactants.Note de contenu : - Surface active monomers
- Polymeric stabilisers
- Paint evaluation
- FIGURES : 1. Water whitening after soaking at 50°C for three hours. Left : dispersion with APEO surfactant, middle : dispersion with APEO-free surfactan, right : dispersion with anionic surfmer - 2. Carbonyl functional polymeric stabiliser - 2. Graft emulsion polymerisation process using a polymeric surfactant - 4. Clarity of clear-coat based on an acrylic dispersion made with a polymeric surfactant and a conventional surfactant - 5. Gel permeation chromatogram of the polymeric stabiliser (A) and the polymer dispersion (B). In B (1) is the second stage and (2) is the non-grafted polymeric stabiliser - DMTA of clear-coat based on polymer stabilised acrylic dispersion
- TABLES : 1. Typical properties of a polymer stabilised dispersion - 2. Formulation is made with polymers stabilised acrylic dispersion - 3. Hardness development - 4. Early water resistance - 5. Chemical resistance according to DIN NORM 68 861 1BPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27728
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4477 (06/2004) . - p. 18-21[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 000300 - Périodique Bibliothèque principale Documentaires Disponible High performance acrylic emulsion for paper-to-foil laminating adhesive / Jose P. Lalas in ADHESIVES AGE, Vol. 38, N° 13 (12/1995)
[article]
Titre : High performance acrylic emulsion for paper-to-foil laminating adhesive Type de document : texte imprimé Auteurs : Jose P. Lalas, Auteur Année de publication : 1995 Article en page(s) : p. 22-23 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Adhésion
Aliments -- Emballages
Copolymère éthylène acide acrylique
Huiles et graisses
Polyacryliques
Résistance à l'humidité:Résistance à l'eau
Résistance chimique
Résistance thermique
StratifiésIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Paper-to-foil lamination is used to manufacture packaging materials for a variety of foods, such as margarine, butter and oily snack foods. Casein/SBR and ethylene acrylic acid (EAA) adhesive technologies currently dominate the paper-to-foil laminating market. Casein/SBR offers the adhesive formulator adhesion, water resistance and heat resistance. However, these advantages are offset by odors due to the SBR component and the increasing price fluctuation and variable quality of casein. EAA offers the advantage of low odor and better grease resistance than the casein/SBR system, but at high costs. With the disadvantages associated with existing technologies, there is a need for a new laminating adhesive polymer that delivers a more attractive balance of cost and performance. Note de contenu : - Laminate preparation
- Adhesion
- Water resistance
- Blister/Tunneling, static test
- Heat resistance
- Grease resistanceEn ligne : https://drive.google.com/file/d/1xElVMYRF37d1Zhca0_xm1lakPwvaDT4o/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20798
in ADHESIVES AGE > Vol. 38, N° 13 (12/1995) . - p. 22-23[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001058 - Périodique Bibliothèque principale Documentaires Disponible High performance coating films cured by novel penetrating method : Anionic resin paints / Yasuharu Nakayama in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 870 (07/1997)
[article]
Titre : High performance coating films cured by novel penetrating method : Anionic resin paints Type de document : texte imprimé Auteurs : Yasuharu Nakayama, Auteur Année de publication : 1997 Article en page(s) : p. 61-69 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Carbohydrazide Le carbohydrazide est utilisé comme absorbeur d'oxygène dans le traitement de l'eau pour les chaudières. C'est une alternative à la dangereuse et potentiellement cancérigène hydrazine . Carbohydrazide réagit avec l'oxygène pour faire l'eau , l'azote et l'urée . Il passive aussi des métaux et réduit les oxydes métalliques ( oxyde de fer -> l'oxyde ferreux , l'oxyde de cuivre -> l'oxyde cuivreux ).
Il est largement utilisé dans la production de médicaments, herbicides, régulateurs de croissance des plantes, et des colorants.
Propriétés physiques : Le carbohydrazide est un solide cristallin blanc avec un point d'153-154 de fusion ° C. Il se décompose lors de la fusion. Il est très soluble dans l'eau et en grande partie insoluble dans les solvants organiques.
Copolymère diacétone acrylamide
Couches minces
Pénétration (physique)
Résistance à l'humidité
Réticulants
Solutions aqueuses (chimie)Index. décimale : 667.9 Revêtements et enduits Résumé : This study deals with a method of curing paint film at ambient temperature with a film-penetrative crosslinker. The method is based on the phenomenon that, after a wet coating film becomes thermoplastic, it is dipped in an aqueous solution of crosslinker. The crosslinker then penetrates into the film, and the film can be cured with the passage of dipping time. Herein an anionic copolymer containing diacetone acrylamide was employed as the main resin and carbohydrazide as the film-penetrative crosslinker. Cured films can be prepared with a short dipping time using this method. Excellent films were obtained when they were dipped in a suitable crosslinkers solution containing the proper organic solvents (accelerator of penetration rate) and an appropriate acid (promoter of the reaction). In particular, the adhesion after the water resistance test was excellent compared with that of the coating film obtained by the two-component coating method. Note de contenu : - Curing by the penetrating method
- Properties of coating film cured by penetrating methodPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18263
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 69, N° 870 (07/1997) . - p. 61-69[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 003539 - Périodique Bibliothèque principale Documentaires Disponible High performance coatings based on novel penetrative curing : Cationic electrodeposition coatings cured at ambient temperature / Yasuharu Nakayama in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 69, N° 875 (12/1997)
[article]
Titre : High performance coatings based on novel penetrative curing : Cationic electrodeposition coatings cured at ambient temperature Type de document : texte imprimé Auteurs : Yasuharu Nakayama, Auteur Année de publication : 1997 Article en page(s) : p. 33- 39 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Copolymère diacétone acrylamide
Electrophorèse
Essai Wolff-Wilborn
Résistance à l'humidité
Résistance au chocs
Résistance chimique
Réticulation (polymérisation)
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Solutions aqueuses (chimie)Index. décimale : 667.9 Revêtements et enduits Résumé : Cationic electrodeposition coatings were cured with a penetrative crosslinker at ambient temperature. This method is based on a novel technology in which coating films are dipped in aqueous crosslinker solution which moves into the film, accompanied by crosslinking. Pencil hardness, impact strength, solvent resistance and water resistance were improved with dipping time, that is, with the penetration of crosslinking. On the contrary, corrosion resistance was controlled by two opposing factors arising from the crosslinking-strengthening of the coating barrier property and weakening of the adhesion force. Excellent protective coatings were obtained by selection of resins and control of crosslinking. This system is well suited for the coatings on huge, complex structures in finished condition incorporated with glass, plastic, etc. Note de contenu : - EXPERIMENTAL : Preparation - Methods of measurement
- RESULTS AND DISCUSSION : Characteristics of this method - New model for protective coatingsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18067
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 69, N° 875 (12/1997) . - p. 33- 39[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 003544 - Périodique Bibliothèque principale Documentaires Disponible High performance UV curable PSAs offer high production speeds / James R. Erickson in ADHESIVES AGE, Vol. 41, N° 9 (09/1998)
PermalinkPermalinkHigh SPF sunscreens that feel light on the skin / Brigitte Lindemann in SOFW JOURNAL, Vol. 144, N° 10 (10/2018)
PermalinkHighly moisture-proof polysilsesquioxane coating prepared via facile sol-gel process / Yang Dongjiang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 3, N° 2 (04/2006)
PermalinkPermalinkHow polyurethane film formers can help reduce the impact on the environment whilst keeping sun protection high / Sophie Viala in SOFW JOURNAL, Vol. 146, N° 7/8 (07-08/2020)
PermalinkHow to achieve faster dry times and more with high-performance catalysts in low-VOC alkyd coatings / Allison Abbey in COATINGS TECH, Vol. 19, N° 1 (01/2022)
PermalinkHydrophilization and hydrophobization of PP fibers in CHEMICAL FIBERS INTERNATIONAL, Vol. 70, N° 2/3 (09/2020)
PermalinkHydrophobic properties of cardboard coated with polylactic acid and ethylene scavengers / Amaury Taboada-RodrÃguez in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 5 (09/2013)
PermalinkHydrophobically modified polyacrylic acids for WB tackifying resin dispersion / Brian J. Vondruska in ADHESIVES AGE, Vol. 40, N° 5 (05/1997)
PermalinkImproved facade coatings / Frank Ludwig in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 195, N° 4492 (09/2005)
PermalinkImproved monitoring of temperature changes / Mathias Maier in EUROPEAN COATINGS JOURNAL (ECJ), N° 4/2011 (04/2011)
PermalinkImproved surface resistance of matte wall paint by using talc / Veli Kilpeläinen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4632 (06/2017)
PermalinkImprovement of barrier properties of Cr-free pretreatments for coil-coated products / Ville Saarimaa in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 4 (07/2015)
PermalinkIn vitro water resistance testing using SPF simulation based on spectroscopic analysis of rinsed sunscreens / Myriam Sohn in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 40, N° 3 (06/2018)
Permalink