Self-wound self-adhesive surface covering material

• US 6,086,995 A
• Filed: 05/13/1994
• Issued: 07/11/2000
• Est. Priority Date: 05/13/1994
• Status: Expired due to Fees

• Current Assignee: Kittrich Corporation
• Original Assignee: Decora North America
• Inventors: Smith, John Ralph
• Primary Examiner(s): DAVIS, JENNA L
• Application Number:
  US08/242,297
• Time in Patent Office: 2,251 Days
• Field of Search: 428/354, 428/40, 428/352, 428/355, 428/480, 428/906
• US Class Current: 428/352
• CPC Class Codes: B32B 2307/406 Bright, glossy, shiny surface
• CPC Class Codes: B32B 2307/408 Matt, dull surface
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/734 Dimensional stability
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2451/00 Decorative or ornamental articles
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B32B 7/06 permitting easy separation
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B44C 1/105 comprising an adhesive layer decalcomania B44C1/16; adhesive tapes C09J7/20
• CPC Class Codes: B44C 5/04 Ornamental plaques, e.g. decorative panels, decorative veneers
• CPC Class Codes: C09J 2301/162 the carrier being a laminate constituted by plastic layers only
• CPC Class Codes: C09J 7/29 Laminated material metallised plastics C09J7/22
• CPC Class Codes: Y10S 428/906 Roll or coil
• CPC Class Codes: Y10T 428/2839 with release or antistick coating
• CPC Class Codes: Y10T 428/2848 Three or more layers

Abstract

An improved self-wound roll of a pressure sensitive adhesive coated laminate comprising a substrate which becomes dimensionally-unstable under normal processing conditions, e.g., printing, at least one layer comprising a continuous film of a normally dimensionally stable polymer adhesively fixed to one or both sides of the substrate thereby stabilizing it during processing, a transparent flexible release layer of a resin on the outwardly facing surface of the laminate, and a layer of a modified pressure sensitive adhesive on the inwardly facing surface of the substrate. The laminate can be processed without distortion, wound into rolls, unwound and applied to a surface to be decorated without delamination or shrinkage and without distortion of printed indicia, and it ultimately can be stripped without damage to the surface.

Claims

1. A self-wound roll of pressure sensitive adhesive surface covering comprising:

(a) a laminate having two surfaces, said laminate consisting essentially of;

(i) a substrate layer having a first surface and a second surface, said substrate layer comprising a polymeric film comprising a vinyl- or vinylidene halide homopolymer or copolymer;

(ii) a first stabilizing layer adhered to said first surface of said substrate layer, said first stabilizing layer comprising a polymeric film comprising a polyolefin or a polyester; and

(iii) an optional second stabilizing layer adhered to said second surface of said substrate layer, said stabilizing layer comprising a polymeric film comprising a polyolefin or a polyester;

(b) a pressure sensitive adhesive layer on one surface of said laminate; and

(c) a release layer on the other surface of said laminate, said release layer consisting of a transparent flexible synthetic resin material having release properties with respect to said pressure sensitive adhesive layer;

wherein said self-wound roll includes a plurality of turns of said pressure sensitive adhesive surface covering such that said release layer (c) on one turn is in contact with said pressure sensitive adhesive layer (b) on an adjacent turn, said release layer after storage for 7 days at 158°

C. (c) being readily separable from said pressure sensitive adhesive layer (b).

2. The self-wound roll of pressure sensitive adhesive surface covering of claim 1 wherein said optional second stabilizing layer (a)(iii) is not present and said pressure sensitive adhesive layer (b) is on said second surface of said substrate layer (a)(i).

3. The self-wound roll of pressure sensitive adhesive surface covering of claim 1 wherein said substrate layer (a)(i) is decorated.

4. The self-wound roll of pressure sensitive adhesive surface covering of claim 1 wherein said first stabilizing layer (a)(ii) is decorated.

5. The self-wound roll of pressure sensitive adhesive surface covering of claim 1 wherein said substrate layer (a)(i) comprises a poly(vinyl chloride) homopolymer.

6. The self-wound roll of pressure sensitive adhesive surface covering of claim 1 wherein said polyolefin is polypropylene.

7. The self-wound roll of pressure sensitive adhesive surface covering of claim 1 wherein said polyester is poly(ethylene terephthalate).