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Rocket science gives surfactants a boost / Barry Rosenbaum in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4483 (12/2004)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4483 (12/2004) . - p. 15-18 Titre : Rocket science gives surfactants a boost Type de document : texte imprimé Auteurs : Barry Rosenbaum, Auteur Année de publication : 2004 Article en page(s) : p. 15-18 Langues : Anglais (eng) Catégories : Fluoropolymères Produits chimiques -- Suppression ou remplacement Revêtements -- Additifs:Peinture -- Additifs Surfactants Index. décimale : 667.9 Revêtements et enduits Résumé : C8 fluorosurfactants are on the way out - 3M has withdrawn their use because of their environmental impact, but what are the alternatives ? A fluoropolymer developed as a spin-off from the space race may have the answers. Note de contenu : - Environmental concerns - Partnering strategy - Unconventional performance - Commercial success - Evolving Potential Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27670 [article]

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Undercoat cost cutting in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4483 (12/2004)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4483 (12/2004) . - p. 24-26 Titre : Undercoat cost cutting Type de document : texte imprimé Année de publication : 2004 Article en page(s) : p. 24-26 Langues : Anglais (eng) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture Charges (matériaux) Coût -- Contrôle Primaire (revêtement) Index. décimale : 667.9 Revêtements et enduits Résumé : By matching the filler to the brightness of the finish colour considerable savings on basecoat application time and material can be made. Note de contenu : - Cost savings - Blending guide - Same system Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27671 [article]

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Keeping roofs cool / George R. Pilcher in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4483 (12/2004)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4483 (12/2004) . - p. 28-31 Titre : Keeping roofs cool Type de document : texte imprimé Auteurs : George R. Pilcher, Auteur Année de publication : 2004 Article en page(s) : p. 28-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Esthétique Revêtements en bâtiment:Peinture en bâtiment Toiture -- Revêtements:Toiture -- Peinture Index. décimale : 667.9 Revêtements et enduits Résumé : This article examines why aesthetics are important for buildings with steep roofs and new building code requirements. In general, roofing and roofing materials are characterised as being 'low-slope' or 'steep-slope'. Low-slope is generally considered in the industry as a roof with a 'rise-over-run' of two feet in 12 ('2:12') or less. (Flat roofs are de facto considered to be in the 'low-slope' category). Steep-slope would be any roof with a rise-over-run relationship of greater than 2:12 (>10°). In general, steep-slope roofs are more common in residential applications, while low-slope roofs are more common in commercial applications, although this is certainly not a hard-and-fast rule. Another significant difference between low-slope and steep-slope roofing has to do with aesthetic considerations. Generally, low-slope roofing cannot be seen from ground level, so the appearance of such roofing is not a major factor. Steep-slope roofing, however, is easily visible and 'look count'. As a result, manufacturers of steep-slope roofing products invest considerable resources addressing aesthetic issues. Asphalt shingles are now commonly supplied with dimensional characteristics and variegated colour schemes. Painted metal roofing comes in thousands of different colours, shapes, sizes and textures. Concrete tile, clay tile, and cedar shake roofing are all designed with performance and aesthetic in mind. Because of the different requirements for steep-slope vs low-slope roofing i.e., steep-slope roofs are typically designed as water-shedding systems, low-slope roofs are designed to form a seal against water penetration - different materials are typically used in their composition and construction. Note de contenu : - National initiatives - New building code requirements for cool roofing in California - Cool Roof Rating Council (CRRC) - ASHRAE and other states - Excellent timing Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27672 [article]

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PSA potential / Debbie Smith in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4483 (12/2004)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4483 (12/2004) . - p. 50-52 Titre : PSA potential Type de document : texte imprimé Auteurs : Debbie Smith, Auteur Année de publication : 2004 Article en page(s) : p. 50-52 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésifs -- Séchage sous rayonnement ultraviolet Adhésifs sensibles à la pression Oligomères Index. décimale : 667.9 Revêtements et enduits Résumé : The author talks about an adhesives technology which can help companies exploit the growing potential of UV pressure sensitive adhesives in the future. A new series of oligmers have been designed by chemists to react more effectively and throughly in PSA systems. Not only are they proving successful and commercial in high speep in-line UV curable PSA labelling applications, other applications areas are currently being inverstigated to exploit the new technology's potential. Note de contenu : - Benefits of UV-curable PSAS - Current problems - New reactive oligomers - Process window - Opening other market areas - Improved performance Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27675 [article]

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Pearl performance / Stephane Rochard in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 194, N° 4483 (12/2004)

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 194, N° 4483 (12/2004) . - p. 20-23 Titre : Pearl performance Type de document : texte imprimé Auteurs : Stephane Rochard, Auteur ; Thomas Chirayil, Auteur Année de publication : 2004 Article en page(s) : p. 20-23 Langues : Anglais (eng) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture Dioxyde de titane Mica Oxyde de fer Pigments nacrés Polyesters Index. décimale : 667.2 Colorants et pigments Résumé : The authors explain why the addition of a new class of pearlescent pigment resists build-up during formulation and helps to minimise a variety of problems. Note de contenu : - Achieving that pearly luster - Application challenges - An improved pigment - Achieving that pearly luster - Application challenges - An improved pigment - FIGURES : 1. The new cyclo pigments are ideal for the automotive industry - 2. So-called absorption pigments, produced by iron-oxide coated mica are available in copper and russet colours - 3. pearlescent coatings are most often produced by mixing thin platelets of mica or borosilicate that have been coated with a material of high refractive index, such as titanium dioxide (as shown here), iron oxide with a resin matrix - 4. When pearlescent pigments are dry blended into pre-formulated resins, surface charge incompatibilities between the two materials can cause the pigments to separate from the resin matrix, and build up in the corona spray gun tip. When the buildup becomes unstable enough, it will eventually break off as clumps, making the coated part defective or undesirable - 5. The desired visual effect of a pearlescent coating results from the interaction of light with the TiO2 coated mica or borosilicate platelets within the coating. Parallel orientation of the platelets is key - the misalignment of the coated platelets will cause light to be reflected randomly, diminishing the pearlescent luster. - TABLE : Compares typical chargeability values for conventional TiO2 coated mica pigments, various surface-modified Engelhard Cyclo pigments and polyester resin. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27683 [article]

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