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[article]
Titre : Hold your water : New waterbone polychloroprene latices for adhesive applications Type de document : texte imprimé Auteurs : Craig E. Jansen, Auteur Année de publication : 2001 Article en page(s) : p. 30-36 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Dispersions et suspensions
Essais de pelage
Latex
Polychloroprène
Polymérisation en émulsion
Résistance thermiqueIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Polychloroprene latices have been utilized by the adhesives industry for many years for various applications, such as packaging, and to a limited extent bonding high-pressure laminate to particleboard. More recently, two-component adhesives based on polychloroprene latices have become widely used for bonding polyurethane foam to itself in the manufacture of seating.
Polychloroprene latices have not widely replaced solvent-based contact cements in bonding high-pressure laminate to particleboard because of several performance and application issues. It rakes a waterborne adhesive much longer to dry at ambient conditions than a solvent-based adhesive. Quick drying of a latex-based system can only be achieved by an investment in drying equipment.
The contact bond properties of polychloroprene latices are not as good as solvent-based polychloroprene adhesives in several respects. The difference in auto-adhesion properties gives lower initial bond strength and makes bonding at low pressures difficult.
Also, the heat resistance of adhesives based on polychloroprene latices is generally lower than solvent-based contact cements because of the presence of surface active ingredients used to emulsify the latex, tackifiers and other compounding ingredients.
This article presents two new polychloroprene latices that provide additional possibilities for formulating waterborne contact adhesives with good rack and heat resistance properties. By utilizing these latices in combination with other latices, formulations were developed that had improved initial peel strength and softening points.Note de contenu : - Polymerization
- Polymer structure and control variables
- Blends of Dispercoll C-74 with Dispercoll C LS-2324
- Dispercoll C-84
- Dispercoll C LS-2373
- Blends of Dispercoll C-74 with Dispercoll C LS-2373En ligne : https://drive.google.com/file/d/1We7WyF8UrQT3XgqbOevEZrfkb9qwBRBP/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19954
in ADHESIVES AGE > Vol. 44, N° 11 (11/2001) . - p. 30-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001464 - Périodique Bibliothèque principale Documentaires Disponible Hot-tack measurements : an efficient development tool for water-based polyurethanes / H-W. Lucas in ADHESIVES AGE, Vol. 40, N° 2 (02/1997)
[article]
Titre : Hot-tack measurements : an efficient development tool for water-based polyurethanes Type de document : texte imprimé Auteurs : H-W. Lucas, Auteur ; G. Festel, Auteur ; J. Ramthun, Auteur ; R. Witkowski, Auteur ; Jeffrey F. Dormish, Auteur Année de publication : 1997 Article en page(s) : p. 18-23 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Adhésifs en phase solvant
Essais d'adhésion
Etudes comparatives
Polyuréthanes
Réticulation (polymérisation)
TackIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Thermoactivatable polyurethanes, proven for a long time as solventborne systems, are important adhesive raw materials. Using this group of adhesives, durable and reliable adhesive bonds can be manufactured in an economical way. Therefore, thermoactivatable polyurethanes are the raw materials of choice for many industrial applications, especially when working with difficult-to-bond substrates such as plasticized PVC.
As environmental pressures have increased to remove solvent from the workplace, environmentally friendly alternatives based on aqueous polyurethane dispersions are being offered by the producers of adhesive raw materials. The data shows that the performance of these raw materials is in no way inferior to the solvent-based systems.
Because of the rapidly changing demands of the market (substrates, films and application equipment), raw material suppliers have to quickly and efficiently find answers to meet the needs of adhesive end-users. The hot-tack measuring device discussed here was developed to assist in the development of new adhesive raw materials.
Examples of some of our development work demonstrate the power of this new tool and show that tack measurements match the results of adhesion tests. The influence of the main application parameters on tack and adhesion were discussed (e.g., temperature of the adhesive film, applied pressure and time of contact). Using this equipment, it is possible to predict the application behavior of thermoactivatable adhesives under industrial application conditions. The tack measuring device is used not only for the development of new products, but also to check the consistency and quality of our commercial products.Note de contenu : - HEAT ACTIVATION : DEVELOPMENT OF A MODERN TEST METHOD : Why measure hot-tack ?
- HOT-TACK MEASUREMENTS AND CORRELATION TO ADHESION TEST RESULTS : Test as function of the adhesive film temperature - Tack dependence on pressure - Correlation between tack and adhesion test results - Activation temperature 50°C
- MEASUREMENTS ON CHEMICAL CROSSLINKING AND CRYSTALLIZING SYSTEMS
- RAW MATERIAL DEVELOPMENT USING TACK EXPERIMENTS : High temperature laminations - Low temperature activable - Tack measurements of compounded dispersions
- COMPARISON OF SOLVENT-BASED AND WATER-BASED POLYURETHANESEn ligne : https://drive.google.com/file/d/1ezL3fVcc3sQmkfp56uQ12M3UuEsBLMTe/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20376
in ADHESIVES AGE > Vol. 40, N° 2 (02/1997) . - p. 18-23[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001072 - Périodique Bibliothèque principale Documentaires Exclu du prêt Hydrophobically modified polyacrylic acids for WB tackifying resin dispersion / Brian J. Vondruska in ADHESIVES AGE, Vol. 40, N° 5 (05/1997)
[article]
Titre : Hydrophobically modified polyacrylic acids for WB tackifying resin dispersion Type de document : texte imprimé Auteurs : Brian J. Vondruska, Auteur ; Harinath B. Bathina, Auteur ; Carl D. Weber, Auteur ; Laura L. Pulliam, Auteur Année de publication : 1997 Article en page(s) : p. 28-32 Note générale : Bibliogr. Langues : Américain (ame) Catégories : acrylique, Acide L'acide acrylique ou acide acroléïque ou acide prop-2-énoïque est un composé organique de formule brute C3H4O2 et de formule semi-développée CH2=CHCOOH. C'est un acide carboxylique et un alcène vinylique, et se présente comme un liquide incolore à l'odeur âcre.
L'acide acrylique et ses esters, les acrylates, sont utilisés dans la fabrication de matières plastiques, dans les peintures acryliques et dans divers autres polyacryliques qui ont de multiples usages.
Adhésifs en phase aqueuse
Hydrophobie
Résistance à l'humidité
Résistance thermique
Tackifiant (adhésifs)Index. décimale : 668.3 Adhésifs et produits semblables Résumé : The use of Pemulen resins to prepare solvent-and oil-free emulsions of high melting tackifier resins supports industry trends toward conversion to stricly water-based adhesives. A room temperature ball milling technique is utilized to prepare stable emulsions, but other conventional procedures may be used with many resins. Due to the low levels of surfactants and Pemulen resin required, these emulsions offer savings when compared to conventional tackifier resin emulsification systems. They are fluid and stable, for easy handling and storage; they also offer potential advantages in the areas of moisture resistance and freeze-thaw stability. Note de contenu : - Emulsification methods
- Emulsion stabilization with pemulen resin
- Advantages over traditional methods
- Case studyEn ligne : https://drive.google.com/file/d/1znC8EP4vYNw-YYtVKbSGGklwWupWiHCC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20435
in ADHESIVES AGE > Vol. 40, N° 5 (05/1997) . - p. 28-32[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001075 - Périodique Bibliothèque principale Documentaires Exclu du prêt Improvements in aqueous acrylic pressure sensitive adhesives / Oliver Nickel in ADHESION - ADHESIVES + SEALANTS, N° 9/2005 (09/2005)
[article]
Titre : Improvements in aqueous acrylic pressure sensitive adhesives Type de document : texte imprimé Auteurs : Oliver Nickel, Auteur Année de publication : 2005 Article en page(s) : p. 28-29 Langues : Multilingue (mul) Catégories : Adhésifs en phase aqueuse
Adhésifs sensibles à la pression
PolyacryliquesIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Converters throughout Europe find that aqueous acyrlic PSAs are now suitable for specialty applications that previously depended on solvent-based bonding agents. Note de contenu : - Water-based PSAs improving
- Accruing process benefits
- Achieving property balance
- Shrugging off water effects
- Being kind to the environment
- 12 benefits to expect from aqueous acrylic PSAsEn ligne : https://drive.google.com/file/d/1IKFsQ_eUwcT9CAEBvx4EAUm5Mb2fVmAl/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25499
in ADHESION - ADHESIVES + SEALANTS > N° 9/2005 (09/2005) . - p. 28-29[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13504 - Périodique Bibliothèque principale Documentaires Disponible Influence of polyol unsaturation on urethane properties / Thomas Fishback in ADHESIVES AGE, Vol. 39, N° 7 (06/1996)
[article]
Titre : Influence of polyol unsaturation on urethane properties Type de document : texte imprimé Auteurs : Thomas Fishback, Auteur ; Gladys Aviles, Auteur ; Curt Reichel, Auteur Année de publication : 1996 Article en page(s) : p. 20-23 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse
Elastomères
Formulation (Génie chimique)
Poids moléculaires
Polyols
Polyuréthanes
Résistance aux conditions climatiques
Rhéologie
ViscositéIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : The reduction of unsaturation in polyols used in the production of elastomeric urethane materials provides improved physical properties and environmental resistance. Diols must possess very low levels of unsaturation to be of practical benefit. In triols, even a partial reduction (50%) in unsaturation results in noticeable gains in sealant properties. Reduction of triol unsaturation to low levels provides even further gains. The combination of high molecular weight, low unsaturation triols and diols gives tough, highly extendible materials which perhaps will be competitive with silicones in the 50% movement capability sealant market. Commercialization of propylene oxide-based diols with very low unsaturation will provide a new tool for formulators. Formulators will be able to incorporate a higher molecular weight soft segment than was previously possible in elastomers. The weatherability of urethane products will benefit from the increased retention of elastomeric properties provided by polyols with lower unsaturation content. Note de contenu : - EXPERIMENTAL SEALANTS
- ELASTOMERS
- FILMS
- RESULTS AND DISCUSSION : Sealants - Elastomers - Films
- ENVIRONMENTAL RESISTANCEEn ligne : https://drive.google.com/file/d/1vWx_Ar2I292-MGe-0w0IPI7rIxmPZMLy/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20503
in ADHESIVES AGE > Vol. 39, N° 7 (06/1996) . - p. 20-23[article]Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 001065 - Périodique Bibliothèque principale Documentaires Exclu du prêt Intégration de matières premières biosourcées dans des produits adhésifs pour les marchés grand public et bureaux / Jean-Marie Coant in DOUBLE LIAISON, N° 601 (10/2014)
PermalinkLatent-reactive and storable / Jörg Büchner in ADHESION - ADHESIVES + SEALANTS, N° 9/2007 (09/2007)
PermalinkPermalinkPermalinkModern waterborne contact adhesive : 1K application with 2K property level / Peter Küker in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4632 (06/2017)
PermalinkNeoprene latices in compounding resins / Lance Christell in ADHESIVES AGE, Vol. 37, N° 12 (11/1994)
PermalinkPermalinkPermalinkPermalinkNew tackifier dispersions at the cutting edge of PSAs / Nick Hemmings in ADHESIVES AGE, Vol. 41, N° 10 (10/1998)
PermalinkPermalinkNew wave of waterborne dispersions for adhesives and coatings / Greg Bunker in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 9 (09/2014)
PermalinkPermalinkPolyamide resin dispersion offers beneficial properties for coated roll stock uses / Palitha K. Abeywardena in ADHESIVES AGE, Vol. 40, N° 2 (02/1997)
PermalinkPolyisocyanate crosslinkers for aqueous polyurethane dispersions / Jeffrey F. Dormish in ADHESIVES AGE, Vol. 39, N° 2 (02/1996)
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