Pressure-sensitive adhesive sheet for tire and method for producing the same
AssigneeLintec Corporation
InventorYoshikazu Tanaka
Life of this patent
Estimating the term…
Abstract
Provided is a pressure sensitive adhesive sheet for tires that enables continuous and efficient labeling on tires using a labeling apparatus. The pressure sensitive adhesive sheet includes a release material (C), a first pressure sensitive adhesive layer (B1), a first substrate (A1), a second pressure sensitive adhesive layer (B2), and a second substrate (A2), in this order, and satisfies Requirement (1): in a planar view of the pressure sensitive adhesive sheet for tires, the outline of the first pressure sensitive adhesive layer (B1) exists inside the outline of the second substrate (A2), and Requirement (2): the shortest distance (X) between the outline of the second substrate (A2) and the outline of the second pressure sensitive adhesive layer (B2) is 0.35 mm or more.
Claims20
A pressure sensitive adhesive sheet for tires, comprising:
- a release material (C);
- a first pressure sensitive adhesive layer (B1);
- a first substrate (A1);
- a second pressure sensitive adhesive layer (B2);
- and
- a second substrate (A2),
- wherein the release material (C), the first and second pressure sensitive adhesive layers (B1, B2), and the first and second substrates (A1, A2) are in an order of the release material (C), the first pressure sensitive adhesive layer (B1), the first substrate (A1), the second pressure sensitive adhesive layer (B2), and the second substrate (A2),
- the second substrate (A2) is a resin film comprising a thermoplastic resin, where the thermoplastic resin consists of at least one selected from the group consisting of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polystyrene, and nylon, or is a synthetic paper,
- in a planar view of the pressure sensitive adhesive sheet, an outline of the first pressure sensitive adhesive layer (B1) exists inside an outline of the second substrate (A2), and
- in the planar view of the pressure sensitive adhesive sheet, an outline of the second pressure sensitive adhesive layer (B2) exists inside the outline of the second substrate (A2) such that a shortest distance (X) between the outline of the second substrate (A2) and the outline of the second pressure sensitive adhesive layer (B2) is 0.35 mm or more.
A method for producing a pressure sensitive adhesive sheet for tires, which comprises a release material (C), a first pressure sensitive adhesive layer (B1), a first substrate (A1), a second pressure sensitive adhesive layer (B2), and a second substrate (A2)′, in this order,
- the method comprising, sequentially from (1)′ to (7)′:
- (1)′:
- providing a laminate (1) having a release material (C), a first pressure sensitive adhesive layer (B1), and a first substrate (A1), in this order, and forming a layer (B2)′ of an energy ray-polymerizable adhesive composition on the first substrate (A1) of the laminate (I), thereby forming a laminate (II)′;
- (2)′:
- die cutting a laminate part (L)′ composed of the first pressure sensitive adhesive layer (B1), the first substrate (A1) and the layer (B2)′, thereby forming a laminate (III)′ and a selvage part (Y1)′;
- (3)′:
- removing the selvage part (Y1)′ formed in (2)′;
- (4)′:
- providing a second substrate (A2)′ on a surface of the layer (B2)′, thereby forming a laminate (IV)′;
- (5)′:
- irradiating the layer (B2)′ with energy rays having passed through the second substrate (A2)′ to cause polymerization, thereby forming a second pressure sensitive adhesive layer (B2) to constitute a laminate (IV);
- (6)′:
- die cutting the second substrate (A2)′ in such a manner that, in a planar view of the second substrate (A2)′, an outline of the first pressure sensitive adhesive layer (B1) exists inside an outline of the second substrate (A2)′, that an outline of the second pressure sensitive adhesive layer (B2) exists inside the outline of the second substrate (A2)′, and that a shortest distance (X) between the outline of the second substrate (A2)′ and the outline of the second pressure sensitive adhesive layer (B2) is 0.35 mm or more, thereby forming a laminate (V) and a selvage part (Y2);
- and
- (7)′:
- removing the selvage part (Y2) formed in (6),
- wherein the second substrate (A2)′ is free of polyethylene.
A pressure sensitive adhesive sheet for tires, comprising:
- a release material (C);
- a first pressure sensitive adhesive layer (B1);
- a first substrate (A1);
- a second pressure sensitive adhesive layer (B2);
- and
- a second substrate (A2),
- wherein the release material (C), the first and second pressure sensitive adhesive layers (B1, B2), and the first and second substrates (A1, A2) are in an order of the release material (C), the first pressure sensitive adhesive layer (B1), the first substrate (A1), the second pressure sensitive adhesive layer (B2), and the second substrate (A2),
- the second substrate (A2) is free of polyethylene,
- in a planar view of the pressure sensitive adhesive sheet, an outline of the first pressure sensitive adhesive layer (B1) exists inside an outline of the second substrate (A2), and
- in the planar view of the pressure sensitive adhesive sheet, an outline of the second pressure sensitive adhesive layer (B2) exists inside the outline of the second substrate (A2) such that a shortest distance (X) between the outline of the second substrate (A2) and the outline of the second pressure sensitive adhesive layer (B2) is 0.35 mm or more.
Dependencies are inferred from the claim text.