Patent ID: 8790779
Filing Date: 2014-07-29
Classification: C08L,C09J,Y10T

Abstract:
1. An adhesive material for the joining of pipes comprising a thermally curable adhesive agent in strip or film form having a thickness of 0.1 to 5 mm, said thermally curable adhesive agent in strip or film form comprising: a) at least one reactive epoxy prepolymer comprising an epoxy resin that is solid at 22° C., b) at least one latent hardener for epoxies, and c) one or more block copolymers selected from the group consisting of: styrene-butadiene-(meth)acrylate, styrene-butadiene-(meth)acrylic acid ester, ethylene-(meth)acrylic acid ester-glycidyl(meth)acrylic acid ester, ethylene-(meth)acrylic acid ester-maleic acid anhydride, and methyl methacrylate-butyl acrylate-methyl methacrylate; when said adhesive material comprises the thermally curable adhesive agent in strip form, the adhesive material comprises a free-standing extruded strip of the thermally curable adhesive agent or an extruded strip of the thermally curable adhesive agent covered on one side with a carrier foil or a release paper and optionally covered on its other side with a release paper; when said adhesive material comprises the thermally curable adhesive agent in film form, the adhesive material comprises a film of the thermally curable adhesive agent on a carrier foil or a release paper and optionally covered with a release paper; wherein curing of the thermally curable adhesive agent is initiated when heated to temperatures in a range from about 60° C. to about 200° C.; and wherein the thermally curable adhesive agent in strip or film form at 22° C. is bendable or wrappable and can be elongated at least 100% before it tears.