Water-dispersible raw materials for hot melt adhesives / Richard A. Miller in ADHESIVES AGE, Vol. 39, N° 12 (11/1996)  

[article]  inADHESIVES AGE > Vol. 39, N° 12 (11/1996) . - p. 21-26 Titre : Water-dispersible raw materials for hot melt adhesives Type de document : texte imprimé Auteurs : Richard A. Miller, Auteur ; Gregg M. Althen, Auteur Année de publication : 1996 Article en page(s) : p. 21-26 Langues : Américain (ame) Catégories : Adhésifs à usages médicaux Adhésifs en phase aqueuse Adhésifs thermofusibles Cosmétiques Emballages Essais d'adhésion Essais de pelage Etiquettes Matières premières Nontissés Polyesters Polyéthylène Polyéthylène téréphtalate Polymères ramifiés Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Repulping of paper products has created a need for hot melt adhesives that are water-dispersible. Eastman Chemical Co. has developed a family of branched, water-dispersible polyesters suitable for formulating aqueous dispersions as well as hot melt adhesives for packaging, nonwovens and other uses. Available in a range of viscosities, these materials offer the following key features when formulated into hot melt adhesives. - 100% water-dispersible in ordinary tap water at room temperature in less than three hours; conventional industry standard formulations are non-dispersible. - non-dispersible in ionic solutions (i.e., body fluids); competitive water-dispersible technologies are not ionic by nature and, therefore, likely to have some degree of solubility in saline solutions. - superior adhesion to polyolefin films; hot melt adhesives based on these branched polyesters have from 10% to 110% better adhesion to PE and PET than conventional formulations. Some of the current technologies do not adhere to polyolefins. - comparable key physical properties to conventional formulations; characteristics such as Tg, softening point, elongation, shear adhesion failure temperature and peel adhesion failure temperature are comparable for these branched polyesters and conventional hot melt polymers. The purpose of this article is to discuss these new branched polyesters as raw materials for hot melt adhesives that are water-dispersible and to review the statistical experimental process by which their adhesive performance is optimized. Note de contenu : - PRODUCT FUNCTION - APPLICATIONS : Nonwovens - Packaging adhesives - OTHER APPLICATIONS : Removable labels for PET bottles - Adhesive for wound care patches - Film-former for cosmetics - Competitive matrix - TECHNICAL APSECTS OF POLYESTERS - INCORPORATION INTO ADHESIVE FORMULATIONS - PHYSICAL PROPERTIES OF BRANCHED POLYESTERS En ligne : https://drive.google.com/file/d/1ht9xoUhXeE_I1zP5tK75nIZJYsNivNbt/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20544 [article]

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