Pressure sensitive adhesive article

• Main Authors: GRIFFITH WILLIAM B JR, PUJARI SASWATI
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2022
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

There is provided a pressure sensitive adhesive article comprising (a) a substrate (Sa); (b) a layer (Lb) of a pressure-sensitive composition (Cb) in contact with the substrate (Sa), the pressure-sensitive composition comprising one or more acrylic polymers (POLb) having a Tg of 20 DEG C or less; and (c) a layer (Lc) in contact with the layer (Lb) comprising (i) one or more acrylic polymers (POLc) having a Tg of 20 DEG C or less and (ii) one or more olefin copolymers. A method of making the pressure sensitive adhesive article and an adhesive article made by using the pressure sensitive adhesive article are also provided. 提供了一种压敏粘合剂制品，其包含(a)基材(Sa)；(b)与所述基材(Sa)接触的压敏组合物(Cb)的层(Lb)，所述压敏组合物包含一种或多种Tg是20℃或更低的丙烯酸聚合物(POLb)；以及(c)与所述层(Lb)接触的层(Lc)，其包含(i)一种或多种Tg是20℃或更低的丙烯酸聚合物(POLc)和(ii)一种或多种烯烃共聚物。还提供了一种制备压敏粘合剂制品的方法和通过使用压敏粘合剂制品制成的粘合制品。