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Hydroxy functional acrylated maleinised alkyd-an excellent base for polyurethane automotive refinishing paints / P. V. Sapre in PAINTINDIA, Vol. XLV, N° 9 (09/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 9 (09/1995) . - p. 19-25 Titre : Hydroxy functional acrylated maleinised alkyd-an excellent base for polyurethane automotive refinishing paints Type de document : texte imprimé Auteurs : P. V. Sapre, Auteur ; A. V. Rao, Auteur Année de publication : 1995 Article en page(s) : p. 19-25 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture Copolymère styrène-méthacrylate de méthyle Copolymères alkyde-méthacrylate de butyle Groupe hydroxyle Liants Polyalkydes Polyuréthanes Index. décimale : 667.9 Revêtements et enduits Résumé : In the automobile industry, isocyanate coatings are becoming popular as they have been shown to be capable of formulating into a wide range of coatings suitable for even a wider range of high performance applications. The normal route to incorporate hydroxy functionality in acrylic resin for isocyanate curing is through the co-polymerisation with hydroxy ethyl acrylate (HEA) or with hydroxy ethyl methacrylate (HEMA). Curing of this acrylic resin with isocyanate has limited control on achieving the desired flexibility, crosslink density, drying time, etc. In view of overcoming these limitations, work has been carried out for designing suitable hydroxy functional base alkyd as an alternative to rigid hydroxy functional monomers (HEA or HEMA) so as to incorporate built in flexibility and drying improvement through the oil component. In the present paper, the effect of oil length, type of polybasic acid, molecular weight of hydroxy functional base alkyd for acrylated alkyd for polyurethane coatings, is studied to optimize pot-life, drying and performance with reference to acrylic-isocyanate system. Isocyanate cured acrylated melanised alkyd based on medium oil or short oil promises several advantages over the isocyanate cured acrylics based on HEMA and EHA with respect to its excellent drying speed, gloss and chemical resistance, particularly ammonia resistance, besides comparable mechanical, corrosion and weathering resistance properties. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13658 [article]

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Technical considerations for formulating quality water based paints - microbiological view point / Girish A. Bhagwat in PAINTINDIA, Vol. XLV, N° 9 (09/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 9 (09/1995) . - p. 27-34 Titre : Technical considerations for formulating quality water based paints - microbiological view point Type de document : texte imprimé Auteurs : Girish A. Bhagwat, Auteur Année de publication : 1995 Article en page(s) : p. 27-34 Note générale : Bilbliogr. Langues : Anglais (eng) Tags : 'Peinture  eau'  Formulation  'Dégradation  biologique'  Bactérie  émulsion'  Feuil  Adjuvant  Antibactérien  Fungi  Algae  Biocide  Thallophyta Index. décimale : 667.9 Revêtements et enduits Résumé : This paper attempts to bring our salient features of microbes as potential deteriogens in water based paint systems and their manifestations. With an accent on judicisouly controlling these defects in paints, the paint formulator is being appraised of various tools and techniques, which he may choose to exercise while formulating a quality water based paint. Lastly, various factors which need to be considered before selection of specific preservatives are being discussed so as to derive the maximun cost benefit out of its usage. Note de contenu : CLASSIFICATION OF BIODETERIORATION IN LATEX PAINTS - BIODETERIORATION OF LATEX PAINTS IN WET STATE - SOURCES OF BACTERIAL CONTAMINATION IN PAINTS : Water - Powdered raw materials i.e extenders - Additives and intermediates - Plant hygiene conditions - EFFECTS OF BIODETERIORATION OF LATEX PAINT IN THE CAN - CONTROL OF BACTERIAL CONTAMINATION IN WET STATE PAINT : Good manufacturing practices (GMP) - Use of clean raw materials - Use of hard raw materials - Use of preservatives (In-can) - ACTION OF ANTI-BACTERIAL AGENTS ON BACTERIA - FACTORS INFLUENCING THE ACTION OF BACTERICIDES : Physical conditions - Concentration or use level - Time of contact - Type of organims - Number of organisms - Conditions of the cells - Nature of the substance contaminated - Inter-phase migration of preservatives - PAINT FILM BIODETERIORATION - PAINT FILM DETERIORATION IN THE INTERIORS : Growth of bacteria and yeast - Growth of fungus - PAINT FILM DETERIORATION ON THE EXTERIORS : Growth of algae - Lichens and mosses - FACTORS ACCELERATING PAINT FILM BIODETERIORATION - ENVIRONMENTAL CRITERIA FOR SELECTIONS BIOCIDES Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13660 [article]

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Instrumental match prediction in emulsion paints / S. Ghosh in PAINTINDIA, Vol. XLV, N° 9 (09/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 9 (09/1995) . - p. 35-44 Titre : Instrumental match prediction in emulsion paints Type de document : texte imprimé Auteurs : S. Ghosh, Auteur ; N. K. Ray, Auteur Année de publication : 1995 Article en page(s) : p. 35-44 Note générale : Bibliogr Langues : Anglais (eng) Tags : 'Peinture  eau'  émulsion'  Fabrication  'Contretypage  couleur'  'Propriété  optique'  Couleur  Nuançage Index. décimale : 667.9 Revêtements et enduits Résumé : This paper deals with effective separation of absorption(K) and scatering (S) coefficients of concentrates used for emulsion paint tinting. Basic mathematical logic and equations are exhaustively dealt to arrive the solution of the colour matching problem. The scientific concept of colour involves an effective potential for measuring and controlling the colour of the emulsion paint. Necessary equations, gloss factor at varying level of PVC and data generation methodology are discussed for pratical match prediction, batch correction, recipe generation and tolerance setting of emulsion shades. A judicial use of advanced colour-software simplified the exercise. Note de contenu : - BATCH EQUATION USED IN COLOUR-MATCHING - K AND S SEPARATION : - Mass Tone and Mass Let Down - Mass Tone and Black Reduction - Two White Let Downs - SELECTION OF K AND S VALUES FOR BRIGHT YELLOW CONCENTRATES - MATCH PREDICTION - MEASUREMENT AND VIEWING - SAMPLE PREPARATION - COLORANT CONCENTRATE LET DOWNS/ REDUCTION : Selection of Ke, Ki and K values for Saunderson correction - PREDICTION OF RECIPES - BATCH CORRECTION - BATCH CORRECTION ND SETTING OF TOLERANCE LIMIT Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13661 [article]

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Organic pigments - An introduction / N. Sekar in PAINTINDIA, Vol. XLV, N° 9 (09/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 9 (09/1995) . - p. 41-44 Titre : Organic pigments - An introduction Type de document : texte imprimé Auteurs : N. Sekar, Auteur Année de publication : 1995 Article en page(s) : p. 41-44 Note générale : bibliogr. Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : A brief discussion on introductory aspects of organic pigments is presented. Note de contenu : CLASSIFICATION OF ORGANIC PIGMENTS - MANUFACTURE OF ORGANIC PIGMENTS - CONSTITUTION AND CHARACTERISTICS OF ORGANIC PIGMENTS : Colour of organic pigments - Physical constitution and properties - APPLICATION OF ORGANIC PIGMENTS - REQUIREMENTS OF ORGANIC PIGMENTS Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13662 [article]

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Hydrocarbon resins / Clive H. Hare in PAINTINDIA, Vol. XLV, N° 9 (09/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 9 (09/1995) . - p. 45-47 Titre : Hydrocarbon resins Type de document : texte imprimé Auteurs : Clive H. Hare, Auteur Année de publication : 1995 Article en page(s) : p. 45-47 Langues : Anglais (eng) Index. décimale : 667.9 Revêtements et enduits Résumé : This series is being reproduced with special arrangement with th Journal of Protective Coatings and Linings of U.S.A with due ackowledgments to them. Note de contenu : Caumarone indene resins - Petroleum oil-derived hydrocarbon resins - Terpene resins - Ketone resins Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13663 [article]

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Performances compared for heatset inkformulations using a new environmental resin / Joseph Baldassare in PAINTINDIA, Vol. XLV, N° 9 (09/1995)

[article]  inPAINTINDIA > Vol. XLV, N° 9 (09/1995) . - p. 67-70 Titre : Performances compared for heatset inkformulations using a new environmental resin Type de document : texte imprimé Auteurs : Joseph Baldassare, Auteur Année de publication : 1995 Article en page(s) : p. 67-70 Langues : Anglais (eng) Tags : Encre  Formulation  'Relation  composition  propriété'  Thermodurcissable Index. décimale : 667.9 Revêtements et enduits Résumé : This intersting article which appeared in th May 1995 issue to Polymers Paint Colour Journal speaks of a new resin, soluble in aliphatic mineral distillates, and compatible with hydrocarbon phenolic and alkyd resins, a resin that creates varnishes with low and stable viscosities. Note de contenu : Benefits of ER-125 - Performance results - Setting speeds compared - Cost savings Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13664 [article]

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