ARTICLES AUTO-ADHESIFS AVEC HMPSA INCORPORANT UN PLASTIFIANT EN MATIERE PREMIERE RENOUVELABLE

• Main Authors: ROBERT, Christophe, RAFAITIN, Amandine, IDTTALBE, Lahoucine
• Format: Patent
• Language: French
• Published: 01.10.2021
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; ADVERTISING; CHEMISTRY; CRYPTOGRAPHY; DISPLAY; DISPLAYING; DYES; EDUCATION; LABELS OR NAME-PLATES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; SEALS; SIGNS; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

1) Système multicouche comprenant : - une couche adhésive (A) constituée d'une composition HMPSA (a) qui comprend de 7 à 25 % en poids d'un plastifiant constitué par une huile végétale choisie parmi l'huile de tournesol, de colza, de lin et de soja ; - une couche support (B) adjacente à la couche adhésive (A) ; et - une couche protectrice anti-adhérente (C), adjacente à la couche adhésive (A). 2) Utilisation dudit système pour la fabrication d'articles auto-adhésifs 1) An HMPSA composition comprising from 20% to 50% of a composition of styrene block copolymers; from 35% to 65% of tackifying resin; and from 7% to 25%, as plasticizer, of a vegetable oil is chosen from sunflower, rapeseed, linseed and soybean oil.2) A multilayer system comprising:an adhesive layer (A) consisting of the composition 1);a support layer (B) adjacent to the adhesive layer (A); anda nonstick protective layer (C), adjacent to the adhesive layer (A).2) The use of said system for the manufacture of self-adhesive articles.