[article]
| Titre : |
Synergistic block copolymers and resin tackifier development |
| Type de document : |
texte imprimé |
| Auteurs : |
Jean M. Tancrede, Auteur ; Charles F. Diehl, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 36-39 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Adhésifs thermofusibles
Caoutchouc styrène-butadiène
Copolymère styrène isoprène
Copolymères séquencés
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
The trends in hot melt adhesives (HMAs) are toward high-strength, low-viscosity systems that are stable, light in color and low in odor and can be applied at cooler temperatures at the lowest system cost. Since the adhesive polymer is responsible for the overall strength of the adhesive formulation and is generally the more expensive component, hot melt polymer design is aimed toward building maximum strength that will allow it to be formulated economically. The polymer composition, architecture and size are chosen not only for maximum strength but also to satisfy other critical adhesive parameters discussed in this article.
In the area of disposables, HMA applications challenge the formulating technology extensively, in particular those formulations based on styrenic block copolymers (SBCs). Often the SBC polymer represents less than 20% of the total adhesive system. In order to maximize the extendibility of the SBC polymer, it is important that the other formulating components are carefully chosen or designed for maximum compatibility. Of these other formulating components, the tackifier is most important, since it is often present in the formulation at three times the level of the base SBC polymer.
In this article, we will discuss synergistic styrenic block copolymer and tackifier developments that, when combined, achieve the high-performance properties required of hot melt applications in general and disposable applications in particular. We will describe the chemistry and properties of unique and patented radial polystyrenepolyisoprene (SI) copolymers and those of equally unique resin tackifiers that represent a breakthrough in light color technology. In addition, we will showcase the performance attributes of formulations based on these synergistic components. |
| Note de contenu : |
- Radial, high styrene (SI)4 new polymer development
- Radial coupling enhancement for radial (SI)n polymers
- Radial vs. linear SBC and HMA melt rheology |
| En ligne : |
https://drive.google.com/file/d/1vtN2gEZz2V6-jNxzNNGoc6-N77zVOH9f/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20546 |
in ADHESIVES AGE > Vol. 39, N° 12 (11/1996) . - p. 36-39
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Synergistic block copolymers and resin tackifier development in ADHESIVES AGE, Vol. 39, N° 12 (11/1996)
