公开(公告)号：US20240052212A1

公开(公告)日：2024-02-15

申请号：US18268234

申请日：2021-12-14

Applicant: GCP Applied Technologies Inc.

Inventor： Anthony Maiorana ,  Xia Cao ,  Ralph Fayad ,  Marysusan Couturier ,  Li Zhang

IPC: C09J7/38 ,  C09J11/08 ,  C09J11/06

CPC classification number: C09J7/387 ,  C09J11/08 ,  C09J11/06 ,  C09J2301/304 ,  C09J2301/302 ,  C09J2301/408 ,  C09J2301/414 ,  C09J2400/126 ,  C09J2453/00 ,  C09J2491/00

Abstract: A pressure-sensitive adhesive (PSA) composition and method of use across a wide operable temperature window. The PSA composition includes a triblock copolymer rubber with relatively low diblock content, an aliphatic tackifier, an aromatic tackifier, and an oil-based plasticizer. The combination of components results in the PSA having a phase-separated morphology, where the PSA includes two domains that do not mix with each other. This morphology’ results in superior performance of the PSA across a wide range of temperatures, such that separate adhesives for low temperatures and high temperatures are no longer required.