Patent ID: 7727942

Claim:
A metal sheet or metal sheet section comprising a lubricant coating, wherein the metal sheet or the metal sheet section comprises a first layer and a second layer, the first layer being formed by the application onto the metallic surface of the metal sheet or metal sheet section of a solution containing an organic phosphoric acid ester, wherein the organic phosphoric acid ester is a compound of the general formula X 3-n PO 4 R n where X stands for hydrogen, Na, K, —NH 2 , —NHR, —NR 2 , —NH(R′—OH) 2 or NR(R′—OH), R stands for a straight-chain or branched alkyl group with 1 to 8 carbon atoms, R′ stands for a straight-chain or branched alkylene group with 1 to 14 carbon atoms, R and R′ can in each case be equal or different, and n is a number from 0 to 3, with the proviso that n is not 0 if X stands exclusively for hydrogen, the solution containing phosphoric acid ester having a pH from 6.5 to 11, and the second layer including a lubricant and being arranged on the first layer.