Controlled peel laminate adhesive films

• Main Authors: GASSNER, SARAH K, HATLEWICK, JULIE R, SKAPIK, STEPHEN J. III, MCGEE, ROBERT L
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2013
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; CONDUCTORS; DYES; ELECTRICITY; INSULATORS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

Disclosed is a multilayer adhesive film comprising surface adhesive layers, an internal Controlled Bond Layer comprising a propylene-based polymer strippably adhered to an adjacent layer; an internal Strong Bond Layer (''SBL'') different than the CBL having a facial surface in adhering contact to the CBL and; optionally, one or more different internal Filler Layer(s) located between the SBL and the adhesive surface layer on the side of the SBL opposite to the adhered CBL. The films (i) have a bond strength between the CBL and a non-CBL layer adjacent thereto that is less than the heat activated adhesive bond strengths of the surface layers to surfaces of metal or thermoplastic ethylene polymer and other bond strengths between other adjacent layers in the film, (ii) comprise at least about five weight percent recycled film composition in either the SBL or a Filler Layer and, (iii) when adhering a thermoplastic ethylene polymer surface to a metal surface, provide a strippable interface at the CBL. Also disclose