Laminate, adhesive kit, laminated structure and production method thereof, and contact adhesive composition

a technology of adhesive kit and laminate, which is applied in the direction of chloroprene adhesive, film/foil adhesive, water-setting substance layered product, etc., can solve the problems of wrinkles in the installed laminate, complicated liner removal, etc., and achieve good repositionability, prevent aggressive bonding, and good repositionability

Inactive Publication Date: 2018-09-27
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]An adhesive-backed laminate construction that provides good repositionability before final setting has been discovered. The adhesive layer is a contact adhesive containing a plurality of beads. The shape and sizing of the beads, and the ratio of beads to contact adhesive, is selected such that the presence of the beads in the adhesive layer effects a plurality of protrusions from the adhesive layer. The protrusions prevent aggressive bonding of between the adhesive layer and an installation substrate, and allow the adhesive-backed laminate construction to slide over an installation surface, effecting good repositionability during the installation process. Once positioning of the adhesive-backed laminate is satisfactory, the position may be finally set by pressing the adhesive-backed laminate against the installation surface.
[0014]Since the laminate of the present invention uses, in some embodiments, a low tack contact adhesive layer surface, a protective liner may not be necessary. When a protective liner is not used, the laminate of the present disclosure can be produced, stored, and transported as a continuous roll of film, or as a stack of a film sheets. This eliminates waste and money associated with the use of liners. Furthermore, in some embodiments the surface of the adhesive layer of the laminate of the present disclosure provides good slidability, positioning, and repositioning After positioning or repositioning the laminate on an installation substrate (such as a wall or other installation surface), the laminate may be adhesively set pressing, with a roller or one's hand, the laminate onto the installation substrate.
[0015]The adhesive kit of the present disclosure contains the laminate as described above, and additionally includes a primer agent that is suitable for the contact adhesion of the laminate, thus providing good slidability and better contact adhesion of the laminate upon installation. The primer is applied to the installation surface before the laminate.

Problems solved by technology

Besides being wasteful, the presence a release liner can introduce difficulties into the application process, particularly for large sheets of decorative film, for which the liner removal may be complicated and give rise to wrinkles in the installed laminate.

Method used

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  • Laminate, adhesive kit, laminated structure and production method thereof, and contact adhesive composition
  • Laminate, adhesive kit, laminated structure and production method thereof, and contact adhesive composition
  • Laminate, adhesive kit, laminated structure and production method thereof, and contact adhesive composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0083]A contact adhesive composition was prepared by mixing the adhesive agent 1 (A1) and the acrylic microspheres 1 (B1). The mass ratio of A1 and B1 was 100:10 in terms of solid content. The contact adhesive composition was coated on a smooth surface of an embossed polyvinyl chloride (PVC) film having a thickness of about 170 μm using a knife coater and dried for 4 minutes at 40° C. After the drying, a contact adhesive layer having a thickness of 16 μm was obtained. The contact adhesive layer had recesses and protrusions on the surface. The coated amount of the contact adhesive layer was 23 g / m2. The surface of the contact adhesive layer was substantially nontackey and it is unnecessary to cover the surface by a release liner. As the primer layer (second contact adhesive layer), the primer 1 (P1) was coated on a plasterboard using a brush. The primer layer was dried for 1 hour at 23° C. After the drying, the coated amount of the primer layer was 35 g / m2. The PVC film having the co...

examples 2 to 51

[0084]The test piece of Example 2 to 51 were produced in the same manner as in Example 1. However, each formulation of adhesive and microspheres for the adhesive layer and primer condition, and manufacturing conditions are shown is Table 2. The evaluation results are also shown is Table 2.

example 2-1

[0087]A contact adhesive composition was prepared by mixing the adhesive agent 1 (A1) and the acrylic microspheres 1 (B1). The mass ratio of A1 and B1 was 100:30 in terms of solid content. The contact adhesive composition was coated on one face of a plywood board (150 mm×70 mm×1 mm thickness) using a brush, and dried at 23° C. for 60 minutes. After the drying, the contact adhesive layer had recesses and protrusions on the surface. The coated amount of the contact adhesive layer was approximately 35 g / m2. The evaluation results are shown in Table 4.

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PUM

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Abstract

A laminate comprising a substrate layer; a contact adhesive layer comprising a contact adhesive agent having at least one of chloroprene rubber or acrylic copolymers, as well as microspheres having an average particle size of 0.5 μm or greater in the contact adhesive layer, wherein the contact adhesive layer contains from 5 parts by mass to 500 parts by mass of the microspheres per 100 parts by mass of the contact adhesive agent, and the contact adhesive layer has a plurality of protruding portions because of the microspheres.

Description

TECHNICAL FIELD[0001]The present disclosure relates to a laminate having a contact adhesive layer, an adhesive kit, a laminated structure, a production method of such a laminated structure, and a contact adhesive composition.BACKGROUND ART[0002]Decorative sheets are used for decorating interior or exterior walls, furniture or automobiles. These decorative sheets typically have pressure-sensitive adhesive layer on a back surface and they are applied to the adhered via the pressure sensitive adhesive layers. It is often difficult to apply the decorative sheet on an accurate position because of tackiness of the pressure sensitive adhesive layer. Therefore, it has been developed technology of controlling the tackiness of the pressure sensitive adhesive layer.[0003]U.S. Pat. No. 5,008,139 describes “A pressure-sensitive adhesive layer having, on at least one surface thereof, a layer of evenly dispersed non-adhesive solid particles having an average particle diameter of 10 to 60 microns, ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C09J111/00C09J157/06C09J11/08C09J5/04C09J9/00B32B37/12B32B7/12B32B13/12C09J7/20
CPCC09J111/00C09J157/06C09J11/08C09J5/04C09J9/00B32B37/12B32B7/12B32B13/12C09J2433/003C09J2411/003C09J2411/00C09J2433/00C09J2201/622B32B2327/06C09J7/20C08K2201/005C09J7/381C09J133/06C08L2205/22C09J111/02C09J2301/412C09J2301/408C08L33/08C08K7/16C09J2301/312Y10T428/254
Inventor ABE, HIDETOSHIKASHIWAZAKI, YUJIKANNO, MAMORU
Owner 3M INNOVATIVE PROPERTIES CO
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