ACRYLIC EMULSION PRESSURE SNSITIVE ADHESIVE COMPOSITION

• Main Authors: RYU JIN YOUNG, LEE YONG MAN
• Format: Patent
• Language: English; Korean
• Published: 11.03.2021
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; 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 INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES

The present invention relates to an acrylic emulsion adhesive composition comprising: a first acrylic polymer; a second acrylic polymer; and a second external crosslinking agent. The acrylic emulsion adhesive composition exhibits stable adhesion when attached to an adherend due to pH-dependent properties, but can be easily removed without residue by using an alkali solution when removal is required. Therefore, when the acrylic emulsion adhesive composition is used as an adhesive for a label of a plastic packaging article, the label can be easily removed in a recycling process, thereby improving recycling efficiency. 본 발명은 아크릴계 에멀젼 점착제 조성물에 관한 것이다. 상기 아크릴계 에멀젼 점착제 조성물은 pH 의존적인 특성으로 인해, 피착제에 부착 시에는 안정적인 접착력을 나타내지만 제거가 필요할 때에는 알칼리 용액을 사용하여 잔사 없이 쉽게 제거할 수 있다. 따라서, 상기 아크릴계 에멀젼 점착제 조성물을 플라스틱 포장 물품의 라벨용 점착제로 사용하면 재활용 공정에서 라벨을 쉽게 제거할 수 있어 재활용 효율을 향상시킬 수 있다.