Polymer compound peeling agent, adhesive material, and method of using adhesive materials

Patent metadata

Field	Value
Publication number	US-12091583-B2
Application number	US-202017058737-A
Country	US
Kind code	B2
Filing date	May 8, 2020
Priority date	Jun 21, 2019
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

The present invention provides a polymer compound peeling agent usable for peeling as many types of polymer compounds as possible and capable of reducing a burden required for a peeling treatment when a polymer compound having adhered to an adhesion object is peeled. The polymer compound peeling agent for peeling a polymer compound having adhered to an adhesion object contains a photoresponsive liquid crystal material having a phase structure reversibly transitioning between an isotropic phase and a liquid crystal phase due to photoisomerization based on irradiation lights of different wavelengths. When the polymer compound is adhered to the adhesion object, the photoresponsive liquid crystal material is contained in the polymer compound with the phase structure set to the isotropic phase, and the phase structure of the photoresponsive liquid crystal material is allowed to transition from the isotropic phase to the liquid crystal phase by photoisomerization based on the light irradiation.

First claim

The invention claimed is:

1. A method for peeling a polymer compound having adhered to an adhesion object, comprising:
preparing an adhesive material by mixing one or more types of polymerizable low-molecular-weight compounds, a polymerization initiator, and a photoresponsive liquid crystal material having a phase structure in an isotropic phase state;
adhering the adhesive material to the adhesion object, and generating the polymer compound by polymerizing the one or more types of the polymerizable low-molecular-weight compounds after the adhesive material is placed on the adhesion object;
photoisomerizing based on the light irradiation so that the phase structure of the photoresponsive liquid crystal material is changed from the isotropic phase to the liquid crystal phase; and
peeling the polymer compound from the adhesion object when the photoresponsive liquid crystal material bleeds out on the outer surface of the polymer compound.

2. The method according to claim 1 , wherein
the adhesive material is a main component of a gel for a gel nail, and wherein
the adhesion object is a human nail.

3. The method according to claim 1 , wherein
the adhesive material is a main component of a paint, and wherein
the adhesion object is an application surface.

4. The method according to claim 1 , wherein
when an object to be bonded is bonded to the adhesion object via the adhesive material, after the adhesive material is applied to at least one of the adhesion object and the object to be bonded, the adhesion object and the object to be bonded are pressed against each other to generate the polymer compound between the adhesion object and the object to be bonded, and wherein
when the polymer compound is peeled from at least one of the adhesion object and the object to be bonded, an irradiation light for transitioning the phase structure of the photoresponsive liquid crystal material from the isotropic phase to the liquid crystal phase is applied between the adhesion object and the object to be bonded, or after at least one of the adhesion object and the object to be bonded is made up of a transparent member in advance, the irradiation light is applied to the transparent member, wherein the irradiation light is applied to the transparent member to cause the photoresponsive liquid crystal material to bleed out on the outer surface of the polymer compound.

5. A method for peeling a polymer compound having adhered to an adhesion object, wherein comprising:
preparing an adhesive material that contains a solvent, a polymer compound dissolved in the solvent and becoming adhesive while forming a film on an adhesion object when the solvent volatilizes, and a photoresponsive liquid crystal material mixed with the polymer compound in the solvent with the phase structure set to an isotropic phase;
adhering the adhesive material to the adhesion object, the solvent being volatilized after the adhesive material is placed on the adhesion object;
photoisomerizing based on the light irradiation so that the phase structure of the photoresponsive liquid crystal material is changed from the isotropic phase to the liquid crystal phase; and
peeling the polymer compound from the adhesion object when the photoresponsive liquid crystal material bleeds out on the outer surface of the polymer compound.

6. The method according to claim 5 , wherein
the adhesive material is a main component of a gel for a gel nail, and wherein
the adhesion object is a human nail.

7. The method according to claim 5 , wherein
the adhesive material is a main component of a paint, and wherein
the adhesion object is an application surface.

8. The method according to claim 5 , wherein
when an object to be bonded is bonded to the adhesion object via the adhesive material, after the adhesive material is applied to at least one of the adhesion object and the object to be bonded, the adhesion object and the object to be bonded are pressed against each other to generate the polymer compound between the adhesion object and the object to be bonded, and wherein
when the polymer compound is peeled from at least one of the adhesion object and the object to be bonded, an irradiation light for transitioning the phase structure of the photoresponsive liquid crystal material from the isotropic phase to the liquid crystal phase is applied between the adhesion object and the object to be bonded, or after at least one of the adhesion object and the object to be bonded is made up of a transparent member in advance, the irradiation light is applied to the transparent member, wherein the irradiation light is applied to the transparent member to cause the photoresponsive liquid crystal material to bleed out on the outer surface of the polymer compound.

Assignees

• Aist
• Tat Inc

Inventors

• Yamamoto Takahiro
• TAKUNO Kyohei
• HIROKAWA Keita

Classifications

• C09J4/00

  Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16} · CPC title

• C08K5/315

  Compounds containing carbon-to-nitrogen triple bonds · CPC title

• C08F2/50

  with sensitising agents · CPC title

• A61Q3/04

  Nail coating removers · CPC title

• A61K8/8164

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers, e.g. poly (methyl vinyl ether-co-maleic anhydride) · CPC title