Adhesive tape for jacketing elongate material such as especially cable looms and jacketing method

Abstract

An adhesive tape, especially for wrapping cables, consisting of a preferably textile carrier and of a pressure-sensitive adhesive which is applied on at least one side of the carrier and is in the form of a dried polymer dispersion, the polymer being synthesized from: a) 40% to 90% by weight of n-butyl acrylate and/or 2-ethylhexyl acrylate b) 0% to 10% by weight of an ethylenically unsaturated monomer having an acid or acid-anhydride function c) 60% to 10% by weight of one or more ethylenically unsaturated monofunctional monomers different from (a) and (b) d) 0% to 1% by weight of a difunctional or polyfunctional monomer and the pressure-sensitive adhesive comprising between 15 and 100 parts by weight of a tackifier (based on the mass of the dried polymer dispersion).

1 . Adhesive tape consisting of a textile carrier and of a pressure-sensitive adhesive which is applied on at least one side of the carrier and is in the form of a dried polymer dispersion, the polymer being synthesized from:
 a) 40% to 90% by weight of n-butyl acrylate and/or 2-ethylhexyl acrylate,   b) 0% to 10% by weight of an ethylenically unsaturated monomer having an acid or acid-anhydride function,   c) 60% to 10% by weight of one or more ethylenically unsaturated monofunctional monomers different from (a) and (b), and   d) 0% to 1% by weight of a difunctional or polyfunctional monomer,
 and the pressure-sensitive adhesive comprising between 15 and 100 parts by weight of a tackifier (based on the mass of the dried polymer dispersion). 
   
     
     
         2 . Adhesive tape according to  claim 1 ,
 wherein   ethyl acrylate forms the monomer (c) or at least part of the monomers (c).   
     
     
         3 . Adhesive tape according to  claim 1 ,
 wherein   2-ethylhexyl acrylate forms monomer (a).   
     
     
         4 . Adhesive tape according to  claim 1 , wherein
 the monomer (a) consists of 2-ethylhexyl acrylate and at the same time the monomer (c) or at least part of the monomers (c) consists of ethyl acrylate.   
     
     
         5 . Adhesive tape according to  claim 1 , wherein
 the polymer is synthesized from   (a) 40% to 60% by weight of 2-ethylhexyl acrylate,   (b) 0% to 5% by weight of an ethylenically unsaturated monomer having an acid or acid anhydride function,   (c) 60% to 40% by weight of ethyl acrylate, and   (d) 0% to 0.5% by weight of a difunctional or polyfunctional monomer.   
     
     
         6 . Adhesive tape according to  claim 1 , wherein
 the monomer (b) is acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid and/or maleic anhydride.   
     
     
         7 . Adhesive tape according to  claim 1 , wherein
 monomer (d) is divinylbenzene, an alkyl diacrylate, a triacrylate or a tetraacrylate.   
     
     
         8 . Adhesive tape according to  claim 1 , wherein
 20 to 80 parts by weight of tackifiers have been added.   
     
     
         9 . Adhesive tape according to  claim 1 , wherein
 tackifiers used are tackifier resins having a softening point of more than 80° C. in accordance with ASTM E28-99 (2009).   
     
     
         10 . Adhesive tape according to  claim 1 , wherein
 the glass transition temperature of the pressure-sensitive adhesive is less than +15° C. (determined by DSC (Differential Scanning Calorimetry) in accordance with DIN 53 765 with a heating rate of 10 K/min).   
     
     
         11 . Adhesive tape according to  claim 1 , wherein
 the pressure-sensitive adhesive according to ASTM D3330 has a bond strength to steel of at least 2.5 N/cm (for an adhesive coatweight of 100 g/m 2  on a woven polyester fabric carrier).   
     
     
         12 . Adhesive tape according to  claim 1 , wherein
 the carrier is a textile carrier.   
     
     
         13 . Method of using an adhesive tape according to Claim  1  for jacketing elongate material, comprising passing the adhesive tape in a helical line around the elongate material. 
     
     
         14 . Method of using an adhesive tape according to  claim 1  for jacketing elongate material, comprising wrapping the elongate material in axial direction by the tape. 
     
     
         15 . Elongate material jacketed with an adhesive tape according to  claim 1 . 
     
     
         16 . Elongate material according to  claim 15 , which is a cable loom.