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DOUBLE COAT TAPES

IP.com Disclosure Number: IPCOM000235913D
Publication Date: 2014-Mar-28
Document File: 1 page(s) / 10K

Publishing Venue

The IP.com Prior Art Database

Abstract

Double coat tapes are described which have a total thickness of 22 to 200 micrometers (0.0009 to 0.008 inches in the absence of any release liners. Such tapes can be used in the areas of packaging, display, electronics, appliances, automotive, and general industrial products.

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DOUBLE COAT TAPES

Double coat tapes are described which have a total thickness of 22 to 200 micrometers (0.0009 to
0.008 inches in the absence of any release liners. Such tapes can be used in the areas of packaging, display, electronics, appliances, automotive, and general industrial products.

The double coat tape has a multilayer construction of:

___________________________ Liner 1

___________________________ Adhesive 1

___________________________ Backing

___________________________ Adhesive 2

___________________________ Liner 2 (optional)

Liner 1 (also known as a release liner) may be any suitable material so long as it is removable from adhesive 1 when required. Examples include polyethylene coated Kraft paper having a layer of polyethylene resin on both sides of the paper and a layer of silicone release material over the exposed polyethylene surface on one or both sides of the paper; densified Kraft paper with a layer of silicone release material on one or both sides of the paper; and release coated polyester film;. The thickness of Liner 1 may vary, but as an example can be in the range of 50 to 180 micrometers (0.002 to 0.007 inches).

Adhesive 1 may be any suitable pressure sensitive adhesive material, such those based on silicones, polyurethanes, natural rubbers, synthetic rubbers (eg., block copolymers), acrylics, binder resin/microspheres, and combinations thereof. Such adhesives may contain modifying agents such as tackifier resins, plasticizer resins,...