Bonding film

• US 2,951,004 A
• Filed: 07/27/1959
• Issued: 08/30/1960
• Est. Priority Date: 07/27/1959
• Status: Expired due to Term

• Current Assignee: Albert F. Martin, George M. Rambosek, Warren C. Pagel
• Original Assignee: Albert F. Martin, George M. Rambosek, Warren C. Pagel
• Inventors: Martin, Albert F., Pagel, Warren C., Rambosek, George M.
• Application Number:
  US03/829,849
• Time in Patent Office: 400 Days
• US Class Current: 156/306.9
• CPC Class Codes: B32B 15/04 comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042
• CPC Class Codes: B32B 3/12 characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
• CPC Class Codes: C09J 2301/208 the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive
• CPC Class Codes: C09J 2421/00 Presence of unspecified rubber
• CPC Class Codes: C09J 2463/00 Presence of epoxy resin
• CPC Class Codes: C09J 7/10 without carriers
• CPC Class Codes: Y10T 156/109 Embedding of laminae within face of additional laminae
• CPC Class Codes: Y10T 428/24149 Honeycomb-like
• CPC Class Codes: Y10T 428/24174 including sheet or component perpendicular to plane of web or sheet
• CPC Class Codes: Y10T 428/26 Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
• CPC Class Codes: Y10T 428/2813 Heat or solvent activated or sealable
• CPC Class Codes: Y10T 428/2826 Synthetic resin or polymer
• CPC Class Codes: Y10T 428/2839 with release or antistick coating
• CPC Class Codes: Y10T 428/287 including epoxy group or epoxy polymer
• CPC Class Codes: Y10T 428/31511 Of epoxy ether
• CPC Class Codes: Y10T 428/31515 As intermediate layer
• CPC Class Codes: Y10T 442/164 Including a preformed film, foil, or sheet

Claims

1. A COMPOSITE HANDLEABLE SHIPPABLE UNITARY FLEXIBLE ADHESIVE SHEET MATERIAL HAVING DISSIMILAR NON-STICKY OUTER SURFACE LAYERS ADAPTED FOR FORMING A PERMANENT HEAT-CURED BOND OF HIGH PEEL STRENTGH AND HIGH BEAM SHEAR STRENGTH OVER A WIDE RANGE OF TEMPERATURE BETWEEN ALUMINUM SKIN PANELS AND ALUMINUM HONEYCOMB STRUCTURES, SAID SHEET MATERIAL BEING NON-BONDING TO LOW ADHESION SURFACES OF AN INTERLINER SEPARATING OVERLAPPING CONVOLUTIONS OF THE SHEET MATERIAL IN ROLL FORM, AND COMPRISING (1) A ROOMTEMPERATURE-NON-STICKY, SOLID, HEAT-CURABLE, RUBBER-BASE ADHESIVE LAYER CHARACTERIZED BY BEING CURABLE AT ELEVATED TEMPERATURES TO A NON-BRITTLE THERMOSET CONDITION, AND (2) A ROOM-TEMPERATURE-SOLID AND -NON-STICKY, HEAT-FLUIDIZABLE, HEAT-CURABLE EPOXY RESIN ADHESIVE LAYER CHARACTERIZED BY BEING (A) FLOWABLE AS A VISCOUS LIQUID OF HIGH FILLETING ACTION AS IT IS ELEVATED IN TEMPERATURE, AND (B) SURABLE FROM SAID FLOWABLE STATE TO A SOLID THERMOSET STATE AT HIGHER ELEVATED TEMPERATURES WHICH SERVE ALSO TO CURE SAID RUBBER-BASE LAYER, SAID EPOXY RESIN ADHESIVE LAYER COMPRISING A ROOM-TEMPERATURE-SOLID EPOXY RESIN INITIALLY SOFTENING AT A TEMPERATURE BETWEEN ABOUT 100 AND 200*F., AND A HEAT-ACTIVATIBLE CURING AGENT FOR SAID SOLID EPOXY RESIN.