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A novel cyclocarbonate based technology for isocyanate free polyurethane / Poonam R. Datir in PAINTINDIA, Vol. LVII, N° 5 (05/2007)
[article]
Titre : A novel cyclocarbonate based technology for isocyanate free polyurethane Type de document : texte imprimé Auteurs : Poonam R. Datir, Auteur Année de publication : 2007 Article en page(s) : p. 71-88 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Résistance au rayonnement ultraviolet
Revêtements bi-composant
Revêtements sans isocyanatesIndex. décimale : 667.9 Revêtements et enduits Résumé : The correct requirements of product development is "Gentle to the Earth and living environment" philosophy. Today's customer is much more educated and sophisticated when contemplating materials to a definite space. Also, increasing global awareness of the need to protect our environment and safeguard the health of the employees and consumers creates the demand for developing "green" products in coatings and this has become a significant driver for innovation today. Two-component urethane chemistry continues to be the leading technology for high performance coating systems. With a proven track record of polyurethane coating, known for its good UV-resistance, aesthetic and non-yellowing properties that span decades, why polyurethanes are apparently under the gun so much these days? The answer has to do with the safety implications associated with the group called as "Isocyanate (-N-C=O)". It is this highly reactive isocyanate group in a polyisocyanate molecule that co-reacts with the active hydrogen atom of a polyol to form two component polyurethane. These concerns regarding the toxicity of isocyanates has led to the development of ambient curing Non Isocyanate Polyurethanes (NIPU). Synthesis of NIPU is based on reaction of cyclocarbonate and amine that does not use the toxic material like isocyanate. Cyclocarbonates can be synthesized from corresponding epoxy precursors. The synthesized cyclocarbonates are reacted further with primary amines to get linear or network non isocyanate based polyurethanes. These non - isocyanate polyurethanes are modified polyurethane material with lower permeability, increased resistance properties with safe manufacturing process, when compared to conventional polyurethane. NIPU systems displaying UV stability, thermal stability, chemical resistance and fire resistance along with water solubility have been described in this paper. Note de contenu : - Chemistry of polyurethanes
- Advantages of polyurethanes
- Need to develop isocyanate free polyurethane
- Non-isocyanate polyurethane (NIPU)
- Advantages of NIPU over conventional PU
- Toxicity of amines as compared to isocyanates
- Hybrid non-isocyanate polyurethane (HNIPU)
- Applications
- Advances in NIPU-water soluble NIPU
- Commercial aspect of NIPUPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11484
in PAINTINDIA > Vol. LVII, N° 5 (05/2007) . - p. 71-88[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008394 - Périodique Bibliothèque principale Documentaires Disponible Les peintures aqueuses à haute performance / Association Française des Techniciens des Peintures, Vernis, Encres et Adhésifs / Paris : AFTPVA (1996)
Titre : Les peintures aqueuses à haute performance : Forum de la connaissance. Paris, 26-27 novembre 1996 Titre original : High performance waterborne coatings Type de document : texte imprimé Auteurs : Association Française des Techniciens des Peintures, Vernis, Encres et Adhésifs , Auteur ; Conseil Organisation et Réalisations Informatiques , Auteur Editeur : Paris : AFTPVA Année de publication : 1996 Importance : Pagination multiple Présentation : ill. Format : 30 cm Note générale : Bibliogr. Langues : Multilingue (mul) Catégories : Agents dispersants (chimie)
Automobiles -- Revêtements:Automobiles -- Peinture
Bois -- Revêtements:Bois -- Peinture
Congrès et conférences
Core-Shell
Epaississants
Formation de film
Hydrophobie
Latex
Matériaux cimentaires -- Revêtements:Matériaux cimentaires -- Peinture
Matériaux hautes performances
Métaux -- Revêtements:Métaux -- Peinture
Polymères
Réticulation (polymérisation)
Revêtements (produits chimiques):Peinture (produits chimiques)
Revêtements -- Séchage sous rayonnement:Peinture -- Séchage sous rayonnement
Revêtements bi-composant:Peinture bi-composant
Revêtements en bâtiment:Peinture en bâtiment
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Revêtements en phase aqueuse:Peinture en phase aqueuse
Revêtements protecteurs
Revêtements sans isocyanatesIndex. décimale : 667.9 Revêtements et enduits Note de contenu : - Latex film formation and the application of atomic force microscopy to its investigation
- Paramètres déterminant la température minimum de filmogénation des latex
- Parameters that determine the MFFT of latexes
- Latices with intrinsic crosslink activity
- Latex a activité réticulante intrinsèque
- Study of morphology and film formation of fluorinated core-shell latex particles for hydrophobic coatings
- Revêtements fluorés à base d'eau à haute performance et applications architecturales - Aqueous two-pack PU coatings for automotive applications
- Isocyanate free two component waterborne coatings - Peintures aqueuses deux composants sans isocyanate
- Waterbased polymers for radiation curing
- Waterborne acrylic latex stains for wood
- Waterbased epoxy systems for the protection of metal and concrete
- Additifs rhéologiques pour peintures à l'eau haute performancePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30825 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20106 667.9 PEI Colloque, congrès, etc. Bibliothèque principale Documentaires Disponible Recent advances in isocyanate free coating technologies as an alternate to hazardous isocyanate cured polyurethane coating / Sangram Ghosh in PAINTINDIA, Vol. LXVII, N° 6 (06/2017)
[article]
Titre : Recent advances in isocyanate free coating technologies as an alternate to hazardous isocyanate cured polyurethane coating Type de document : texte imprimé Auteurs : Sangram Ghosh, Auteur ; Nirmalya Dey, Auteur Année de publication : 2017 Article en page(s) : p. 60-70 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Durée de vie (Ingénierie)
Polyaldéhyde
Polycarbamate
Revêtements sans isocyanates
Revêtements:PeintureIndex. décimale : 667.9 Revêtements et enduits Résumé : Isocyanate based polyurethane (PU) paints are well established in the coating world. PU coatings are characterized by their excellent durability, toughness, chemical resistance and stain resistance. PU coatings are used in various fields of applications such as in marine and protective coating, general industrial coatings, automotive coatings and even in architectural coating segments. However, various health, safety and environmental (HSE) legislations are limiting the use of isocyanate due to its toxicity related hazards. Also the use of renewable and green resources is gaining importance as the paint industry is gradually shirting towards eco-friendly and sustainable developments. ln this scenario non-isocyanate polyurethane and other isocyanate free coating technologies are creating a new way of thinking for the paint industry especially for ambient cured system. Few coating manufacturers have already developed and established their products based on isocyanate free chemistry. In this article, various technological approaches and recent advancements in this field have been reviewed in detail. Performance of these new chemistries in comparison to conventional isocyanate based PU has also been covered. It is expected that, the use of isocyanate free coating technology will usher a new way of sustainability for the paint industry. Note de contenu : - STATE-OF-THE-ART IN CONVENTIONAL PU COATING : Two pack airdrying polyurethane - Single pack moisture cured PU
- TOXICITY AND HAZARDS ASSOCIATED WITH ISOCYANATE EXPOSURE
- DEVELOPMENTS IN ISOCYANATE FREE POLYURETHANE CHEMISTRY AND OTHER ALTERNATIVE TOPCOATS : Non-isocyanate polyurethane (NIPU) - NIPU formation reaction - hybrid non isocyanate polyurethane (HNIPU) - Renewable resource based NIPU - Use in NIPU in coatings - Use of HNIPU as sealants and floor coating - Use of HNIPU as sprayable PU foam - Isocyanate free polyurethane using polyaldehyde and polycarbamate - Key features of polyurethane obtained from polyaldehyde and polycarbamate - Alternate isocyanate free coating using malonate and acrylol - Pot life inhibition problem associated with Michael reaction - Acure technology - Comparison of acure with with conventional isocyanate based coatingEn ligne : https://drive.google.com/file/d/1kO3hDgwTyH6_9FYvteE2dbPYfpvZLxSn/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28979
in PAINTINDIA > Vol. LXVII, N° 6 (06/2017) . - p. 60-70[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19145 - Périodique Bibliothèque principale Documentaires Disponible Review of eco friendly green polyurethanes with non-isocyanates : current and future trends in green coatings / R. Kanchana in PAINTINDIA, Vol. LXVII, N° 7 (07/2017)
[article]
Titre : Review of eco friendly green polyurethanes with non-isocyanates : current and future trends in green coatings Type de document : texte imprimé Auteurs : R. Kanchana, Auteur Année de publication : 2017 Article en page(s) : p. 55-71 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acides aminés Les acides aminés (ou aminoacides) sont une classe de composés chimiques possédant deux groupes fonctionnels : à la fois un groupe carboxyle –COOH et un groupe amine –NH2. Parmi ceux-ci, les acides α-aminés se définissent par le fait que leur groupe amine est lié à l'atome de carbone adjacent au groupe acide carboxylique (le carbone α), ce qui leur confère la structure générique H2N–CHR–COOH, où R représente la chaîne latérale, qui identifie l'acide α-aminé.
Les acides α-aminés jouent un rôle fondamental en biochimie comme constituants élémentaires des protéines : ils polymérisent en formant des liaisons peptidiques qui aboutissent à de longues chaînes macromoléculaires appelées peptides.
Carbamates
Mousses (matériaux)
Polyhydroxyuréthanes
Polymères -- Synthèse
Revêtements sans isocyanatesIndex. décimale : 667.9 Revêtements et enduits Résumé : Non-isocyanate polyurethane (NIPU) is a novel kind of polyurethane prepared by reaction of cyclo-carbonates and amines without use of toxic isocyanates.NIPU has attracted increasing attention because of its improvements in porosity, water absorption, thermal and chemical resistance over conventional polyurethanes. Conventional polyurethanes involve the use of isocyanates, which require hazardous and toxic phosgene for their manufacture. These monomers cannot be man ufactured without elaborate safety devices and h uge investment. Isocyanates are also considerably toxic and sensitive to moisture. Growing global awareness, Need to protect our environment and continually strive to ensure the safety, health and well-being of those in the industry and consumers has created a demand for environment-friendly products. Their potential technological applications include chemical-resistant coating, sealants, foam, etc. This review orbits around the syntheses of different kinds of NIPU, the reaction mechanism, and application of different kinds of NIPU in coatings. Note de contenu : - Toxicity of isocyanates
- Moisture-sensitivity
- Inferior hydrolytic stability
- Non-isocyanate polyurethanes (NIPU)
- NIPU from different sources : NIPU from cyclic carbonate functional polymers - Reactants for preparing NIPU - Mechanism for the NIPU formation reaction
- Synthesis of NIPU from epoxy resins
- Synthesis of NIPU from renewable sources
- NIPU in nanotechnology
- NIPU from six-membered cyclic carbonates
- Other non-conventional routes for NIPU synthesis : Properties of non-isocyanate polyurethane coatings
- UV curable HNIPU floorings and coatings
- Advantages of NIPU over conventional PUR
- Application of NIPUEn ligne : https://drive.google.com/file/d/11q_m2_JMuptghaJDhyDzqQnnjvLRjIrs/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28972
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Code-barres Cote Support Localisation Section Disponibilité 19146 - Périodique Bibliothèque principale Documentaires Disponible Review on synthesis of isocyanate free polyurethane using sustainable routes and its applications / Bhagyashree Waghmare in PAINTINDIA, Vol. LXIX, N° 5 (05/2019)
[article]
Titre : Review on synthesis of isocyanate free polyurethane using sustainable routes and its applications Type de document : texte imprimé Auteurs : Bhagyashree Waghmare, Auteur ; Prakash A. Mahanwar, Auteur Année de publication : 2019 Article en page(s) : p. 83-98 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Carbonate cyclique
Composés organiques -- Synthèse
Polyhydroxyuréthanes
Polymères -- Synthèse
Revêtements sans isocyanates
TransuréthanisationIndex. décimale : 668.9 Polymères Résumé : Polyurethane(PU) is most commonly used polymer in various of applications due to its excellent properties. Conventional polyurethane are mostly synthesized by the reaction of isocyanates, polyols and chain extenders. Isocyanates used in this process increases a various health issue. To overcome come all these drawback of PU alternative method of polyurethane synthesis is developed. ln this review sustainable routes for the synthesis of non-isocyante polyurethane (NIPU) reported currently few method of NIPU synthesis reported such as polyaddition, polycondensation, rearrangement and ring opening polymerization are presented in this article. Attention has been given by researchers towards the synthesis of non-isocyanate polyurethane (NIPU), polyhydroxylurethane (PHU) by using most popular and industrially important by the reatiron of cyclic carbonate with diamine. This review also summarizes the synthesis of cyclic carbonate from various routes. Note de contenu : - SYNTHESIS OF NON-ISOCYANATE POLYURETHANE FROM NON-TOXIC ROUTE
- NIPU FROM TRANSURETHANIZATION PROCESS : AB type monomer synthesis process - Polyurethane from bis-hydroxyalkylcarbamate - Polyurethane from bis-alkylcarbamate
- CYCLIC CARBONATE PATHWAY(POLYADDITION : reactivity of cyclic carbonate and amines reaction - Synthesis of cyclic carbonate - Synthesis of 5-membrane cyclic carbonate - Synthesis of 6CC-membrane, 7CC-membrane and 8CC-membrane cyclic carbonate
- SYNTHESIS OF BIS-CYCLIC CARBONATE : From natural resources to cyclic carbonate
- REARRENGEMENT REACTIOIN
- RING OPENING POLYMERIZATION
- Scheme 1 : Conventional Polyurethane Synthesis
- Scheme 2a : Synthesis of polyurethane from carbonates and amine
- Scheme 2b : Synthesis of Polyurethane from Carbonates and amino alcohols
- Scheme 3 : Mechanism of Transurethanization
- Scheme 4 : Polyurethane from AB Type monomer
- Scheme 5 : Synhesis of Methyl (2-mercaptoethyl)carbamate
- Scheme 6 : Synthesis of bis(hydroxyurethane) from ethylene carbonate and diamine
- Scheme 7 : Synthesis of Polyurethane by using lipase -B catalyse
- Scheme 8 : Synthesis of NI-TPU from the polycondensation of BHCH with BHBT
- Scheme 9 : Reaction of cyclic carbonate with amine
- Scheme 10 : Reaction mechanism of cyclic carbonate with amine
- Scheme 11 : Synthesis of cyclic carbonate
- Scheme 12 : Synthesis of cyclic carbonate from olefins
- Scheme 13 : Mechanium of activation epoxide by using quaternary ammonium salt
- Scheme 14 : Organomettalic catalyst for Five-membrane cyclic carbonate
- Scheme 15 : Synthesis of glycerol carbonate form glycerol and DMC
- Scheme 16 : Synthesis of glycerol carbonate from carbon monoxide and oxygen and glycerol
- Scheme 17 : Synthesis of cyclic carbonate-functionalizes polysilaxanes
- Scheme 18 : Synthesis of cyclic carbonate from polyamine and cyclic carbonate termin a ted polyester
- Scheme 19 : Six-membered cyclic carbonate derived from natural sugar D-mannose
- Scheme 20 : Synthesis of polyhydroxyurethane from bis(cyclic carbonate )and diamine
- Scheme 21 : synthesis of a new bis(cyclic carbonate) monomer via green catalysis
- Scheme 22 : Synthesis of Bis-carbonate from Syringaresinol
- Scheme 23 :Chemical Modification of Diepoxide TelechelicPCOE (PCOE-GA2) into Bis(cyclodithiocarbonate)
- Scheme 24 : Synthesis of Bis(cyclic carbonate) from methyl undecenote
- Scheme 25 : Synthesis of Bis(cyclo-carbonate) from D-sorbitol
- Scheme 26 : Synthesis of Bis(cyclic carbonate) from sebacoyl chloride and glycerol carbonate
- Scheme 27 : Synthesis of Cyclic Crbonate from diglycidyether of bisphenol Awith Carbon dioxide
- Scheme 28 : Synthesis of isosorbide bis(cyclic carbonater
- Scheme 29 : Synthsis of bis(cyclic carbonate) from CNSL
- Scheme 30 : Synthesis of cyclocarbonate from Dimer Acid
- Scheme 31 : Synthesis of Bis(Cyclic carbonate) from FDCA
- Scheme 32 : Synthesis of Bis(Cyclic carbonate) from Limonene
- Scheme 33 : Synthesis of bis(cyclic carbonate) from terepthalic acid
- Scheme 34 : Synthesis of bis(cyclic carbonate) poly(dimethylsiloxane) from Poly(dimethyl siloxane) and PDMS
- Scheme 35 : Synthesis of Bis(carbonate) from erythritor
- Scheme 36 : Synthesis of bis (cyclic carbonate from D-Mannitol)
- Scheme 37 : Synthesis of Bis carbonate from vanillin moiety
- Scheme 38 :Bis cyclic carbonate from diglycerol
- Scheme 39 : Synthesis of bifunctional 56CC (Cyclic carbonate)from diglyceror
- Scheme 40 : Synthesis of bis cyclic carbonate from diphenolic acid based cyclic carbonate
- Scheme 41 : Vinyl ethylene carbonate
- Scheme 42 : Synthesis of styrene based polymer with five-membrane cyclic carbonate group
- Scheme 43 : Synthesis of methacrylate type cyclohexenecarbonate monomer
- Scheme 44 : Synthesis of norbornene Cyclic carbonate monomer
- Scheme 45 : Synthesis of carbamate by Hoffman rearrangement
- Scheme 46 : Synthesis of poly(trimethylene urethane) from trimethylene urethane
- Scheme 47 : Synthesis Of Polyurethane from 2-methylaziridine and CO2En ligne : https://drive.google.com/file/d/1WCKhFAP6O2_pbO370IJC-sz_Kuyd6A7Z/view?usp=share [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32637
in PAINTINDIA > Vol. LXIX, N° 5 (05/2019) . - p. 83-98[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20968 - Périodique Bibliothèque principale Documentaires Disponible Sorbitol-based aqueous cyclic carbonate dispersion for waterborne nonisocyanate polyurethane coatings via an environment-friendly route / Zhijun Wu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
PermalinkPermalinkSynthesis and properties of fluorinated non-isocyanate polyurethanes coatings with good hydrophobic and oleophobic properties / Zhijun Wu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)
PermalinkSynthesis, characterization, and properties of isocyanate-free urethane coatings from renewable resources / Arunjunai Raj Mahendran in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 11, N° 3 (05/2014)
PermalinkThe next step in wood coatings / Markus Hallack in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4601 (10/2014)
PermalinkUltraviolet and thermostable non-isocyanate polyurethane coatings / O. Figovsky in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B1 (03/2005)
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