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CN-122029247-A - Pressure sensitive adhesive

CN122029247ACN 122029247 ACN122029247 ACN 122029247ACN-122029247-A

Abstract

The present disclosure relates to a pressure sensitive adhesive that may include a polyisobutylene-based material and a peroxide-based additive. The pressure sensitive adhesive may have an Adhesive Electrolyte Exposure Peel Force (AEEPF) of at least about 0.5N/cm.

Inventors

  • FU HONGBO
  • J.H. Peter

Assignees

  • 美国圣戈班性能塑料公司

Dates

Publication Date
20260512
Application Date
20241024
Priority Date
20231027

Claims (15)

  1. 1. A pressure sensitive adhesive, the pressure sensitive adhesive comprising: polyisobutylene-based materials and The additive based on the peroxide is used in the preparation of a composition, Wherein the pressure sensitive adhesive has an Adhesive Electrolyte Exposure Peel Force (AEEPF) of at least about 0.5N/cm.
  2. 2. A pressure sensitive adhesive, the pressure sensitive adhesive comprising: polyisobutylene-based materials and The additive based on the peroxide is used in the preparation of a composition, Wherein the pressure sensitive adhesive has an adhesive electrolyte exposure peel force retention (AEEPF-R) of at least about 0.4, wherein the AEEPF-R is equal to the Adhesive Electrolyte Exposure Peel Force (AEEPF) of the pressure sensitive adhesive divided by the adhesive initial peel force (AOPF) of the pressure sensitive adhesive.
  3. 3. The pressure sensitive adhesive according to any one of claims 1 and 2, wherein the pressure sensitive adhesive has an Adhesive Electrolyte Exposure Peel Force (AEEPF) of at least about 0.5N/cm.
  4. 4. The pressure sensitive adhesive according to any one of claims 1 and 2, wherein the pressure sensitive adhesive has an Adhesive Electrolyte Exposure Peel Force (AEEPF) of no greater than about 15N/cm.
  5. 5. The pressure sensitive adhesive of any one of claims 1 and 2, wherein the pressure sensitive adhesive has an adhesive electrolyte exposure peel force retention (AEEPF-R) of at least about 0.4, wherein the AEEPF is equal to an Adhesive Electrolyte Exposure Peel Force (AEEPF) of the pressure sensitive adhesive divided by the adhesive initial peel force (AOPF) of the pressure sensitive adhesive.
  6. 6. The pressure sensitive adhesive of any one of claims 1 and 2, wherein the pressure sensitive adhesive has an adhesive electrolyte exposure peel force retention (AEEPF-R) of no greater than about 1.0, wherein the AEEPF is equal to an Adhesive Electrolyte Exposure Peel Force (AEEPF) of the pressure sensitive adhesive divided by the adhesive initial peel force (AOPF) of the pressure sensitive adhesive.
  7. 7. The pressure sensitive adhesive of any one of claims 1 and 2, wherein the pressure sensitive adhesive comprises a polyisobutylene-based material content of at least about 40.00 wt% and not greater than about 99.75 wt% of the total weight of the pressure sensitive adhesive.
  8. 8. The pressure sensitive adhesive of any one of claims 1 and 2, wherein the pressure sensitive adhesive comprises a peroxide-based additive content of at least about 0.25 wt% and not greater than about 5.0 wt% of the total weight of the pressure sensitive adhesive.
  9. 9. The pressure sensitive adhesive of any one of claims 1 and 2, wherein the pressure sensitive adhesive comprises a tackifying resin content of at least about 0.1 wt% and not greater than about 30.0 wt% of the total weight of the pressure sensitive adhesive.
  10. 10. The pressure sensitive adhesive of any one of claims 1 and 2, wherein the polyisobutylene-based material comprises a polyisobutylene content of at least about 40 wt% and not greater than about 99.75 wt% of the total weight of the polyisobutylene-based material.
  11. 11. The pressure sensitive adhesive according to any one of claims 1 and 2, wherein the polyisobutylene-based material consists of polyisobutylene.
  12. 12. The pressure sensitive adhesive according to any one of claims 1 and 2, wherein the peroxide-based additive comprises a peroxide content of at least about 5.0 wt% and not greater than about 30.0 wt% of the total weight of the peroxide-based additive.
  13. 13. The pressure sensitive adhesive according to any one of claims 1 and 2, wherein the peroxide-based additive consists of a peroxide.
  14. 14. The pressure sensitive adhesive according to any one of claims 1 and 2, wherein the peroxide-based additive comprises benzyl peroxide.
  15. 15. An adhesive tape, the adhesive tape comprising: backing material A pressure sensitive adhesive applied to the first surface of the backing material, Wherein the pressure sensitive adhesive comprises: polyisobutylene-based materials and The additive based on the peroxide is used in the preparation of a composition, Wherein the adhesive tape has a Tape Electrolyte Exposure Peel Force (TEEPF) of at least about 0.5N/cm.

Description

Pressure sensitive adhesive Technical Field The present disclosure relates to pressure sensitive adhesives, in particular, to polyisobutylene-based pressure sensitive adhesives. Background Pressure sensitive adhesives are used in a variety of applications, including applications in the presence of solvents that can degrade the adhesive. For example, the pressure sensitive adhesive may be used in the presence of polar aprotic solvents (such as those present in certain battery electrolyte systems and oil immersed transformers). Thus, there is a need for pressure sensitive adhesives that provide high peel strength and high polar solvent resistance. Disclosure of Invention According to a first aspect, the pressure sensitive adhesive may comprise a polyisobutylene-based material and a peroxide-based additive. The pressure sensitive adhesive may have an Adhesive Electrolyte Exposure Peel Force (AEEPF) of at least about 0.5N/cm. According to another aspect, the pressure sensitive adhesive may comprise a polyisobutylene-based material and a peroxide-based additive. The pressure sensitive adhesive may have an adhesive electrolyte peel force retention (AEEPF-R) of at least about 0.4, where AEEPF-R is equal to the Adhesive Electrolyte Exposure Peel Force (AEEPF) of the pressure sensitive adhesive divided by the adhesive initial peel force (AOPF) of the pressure sensitive adhesive. According to yet another aspect, the adhesive tape may comprise a backing material and a pressure sensitive adhesive applied to a first surface of the backing material. The pressure sensitive adhesive may comprise a polyisobutylene-based material and a peroxide-based additive. The adhesive tape may have a Tape Electrolyte Exposure Peel Force (TEEPF) of at least about 0.5N/cm. According to yet another aspect, the adhesive tape may comprise a backing material and a pressure sensitive adhesive applied to a first surface of the backing material. The pressure sensitive adhesive may comprise a polyisobutylene-based material and a peroxide-based additive. The adhesive tape may have a tape electrolyte peel force retention (TEEPF-R) of at least about 0.4, where TEEPF-R is equal to the Tape Electrolyte Exposure Peel Force (TEEPF) of the adhesive tape divided by the tape initial peel force (TOPF) of the adhesive tape. According to yet another aspect, a method of forming a pressure sensitive adhesive may include providing a precursor mixture of a polyisobutylene-based material and a peroxide-based additive, and curing the precursor mixture to form the pressure sensitive adhesive. The pressure sensitive adhesive may have an Adhesive Electrolyte Exposure Peel Force (AEEPF) of at least about 0.5N/cm. According to yet another aspect, a method of forming a pressure sensitive adhesive may include providing a precursor mixture of a polyisobutylene-based material and a peroxide-based additive, and curing the precursor mixture to form the pressure sensitive adhesive. The pressure sensitive adhesive may have an adhesive electrolyte peel force retention (AEEPF-R) of at least about 0.4, where AEEPF-R is equal to the Adhesive Electrolyte Exposure Peel Force (AEEPF) of the pressure sensitive adhesive divided by the adhesive initial peel force (AOPF) of the pressure sensitive adhesive. According to yet another aspect, a method of forming an adhesive tape may include providing a precursor mixture of a polyisobutylene-based material and a peroxide-based additive, applying the precursor mixture on a first side of a backing material, and curing the precursor mixture to form a pressure sensitive adhesive on the first side of the backing material. The pressure sensitive adhesive may comprise a polyisobutylene-based material and a peroxide-based additive. The adhesive tape may have a Tape Electrolyte Exposure Peel Force (TEEPF) of at least about 0.5N/cm. According to yet another aspect, a method of forming an adhesive tape may include providing a precursor mixture of a polyisobutylene-based material and a peroxide-based additive, applying the precursor mixture on a first side of a backing material, and curing the precursor mixture to form a pressure sensitive adhesive on the first side of the backing material. The adhesive tape may have a tape electrolyte peel force retention (TEEPF-R) of at least about 0.4, where TEEPF-R is equal to the Tape Electrolyte Exposure Peel Force (TEEPF) of the adhesive tape divided by the tape initial peel force (TOPF) of the adhesive tape. Drawings Embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings. FIG. 1 includes a diagram illustrating a method of forming a pressure sensitive adhesive according to embodiments described herein; FIG. 2 includes a diagram illustrating the construction of a pressure sensitive adhesive layer formed in accordance with embodiments described herein; FIG. 3 includes a diagram illustrating a method of forming a ribbon according to embodiments described herein, an