Coating agent with high scratch resistance

Coating agent with high scratch resistance

  • CN 104,395,368 A
  • Filed: 06/17/2013
  • Published: 03/04/2015
  • Est. Priority Date: 06/20/2012
  • Status: Active Grant
First Claim
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1. Liniment, it comprisesA) polyisocyanates of at least one aliphatic series or cyclic aliphatic, it has at least 2, preferably the NCO-functionality of 2.8 to 6,B) optional at least one tackiness agent, the tackiness agent of preferred hydroxyl,C) adducts of at least one isocyanato--trialkoxy silane and polyvalent alcohol,are greater than in wherein said polyvalent alcohol, be preferably greater than 95, hydroxyl more preferably greater than 99% is converted by reacting with isocyanato--trialkoxy silane, and the isocyanate groups being less than 0.1 % by weight of isocyanato--trialkoxy silane described in adducts is reactiveD) at least one catalyzer, its be selected from Lewis acid, phosphoric acid or phosphorous acid and ester thereof, end-blocking or the sulfonic acid of non-end-blocking, sulfuric acid, the carboxylic acid of fusing point >

  • 60 DEG C and tetraalkyl phosphonium carboxylate'"'"'s ammonium,E) optional at least one is selected from the linking agent, additive, stablizer and the accrete auxiliary agent that do not contain isocyanic ester, andF) optional organic solvent.

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