Acrylic adhesive composition with ethylene vinyl acetate

• Main Authors: YADAV VINITA, BINDER JOSEPH B, OZAL SHAHROKH N, MOGLIA ROBERT S, MALOTKY DAVID L, PUJARI SASWATI, UHL ISABELLE, JANKO PAVEL
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present disclosure relates to a water-based pressure sensitive adhesive composition. In one embodiment, the water-based pressure sensitive adhesive composition comprises (A) an acrylic dispersion composed of particles of (i) an acrylic polymer having a glass transition temperature (Tg) of less than-20 DEG C and (ii) a surfactant. The water-based pressure sensitive adhesive composition further comprises (B) an ethylene-vinyl acetate (EVA) dispersion comprising (i) particles of an ethylene and vinyl acetate copolymer having from 10 wt% to less than 50 wt% of a vinyl acetate comonomer and (ii) a dispersant. Articles having the water-based pressure sensitive adhesive compositions are also disclosed. 本公开涉及一种水基压敏粘合剂组合物。在一个实施方案中，该水基压敏粘合剂组合物包含(A)丙烯酸分散体，其由(i)玻璃化转变温度(Tg)低于-20℃的丙烯酸类聚合物和(ii)表面活性剂的颗粒构成。该水基压敏粘合剂组合物还包含(B)乙烯-乙酸乙烯酯(EVA)分散体，其包含(i)具有10wt％至小于50wt％乙酸乙烯酯共聚单体的乙烯和乙酸乙烯酯共聚物的颗粒和(ii)分散剂。还公开了具有该水基压敏粘合剂组合物的制品。