Cationic epoxide-amine reaction products

Details Cationic epoxide-amine reaction products Cationic epoxide-amine reaction products

C - Chemistry, Metallurgy

08

G

402/268, 400/540

C08G 59/50 (2006.01) C08G 18/50 (2006.01) C08G 59/56 (2006.01) C08G 59/64 (2006.01) C09D 5/44 (2006.01) C09D 163/00 (2006.01)

Patent

CA 1184700

ABSTRACT A method for the identification of rolls, in particular big paper rolls, by means of a code attached to or marked on the end surface of the roll. The code comprises several characters located side by side and is read by a combined optical beam transmitter-receiver, preferably a laser device, scanning a restricted angle in a plane (8). The scanning is adjusted to extend slightly over the end limits of the code at its both ends and the scanning plane is turned until at least one scanning over the entire code (4) is obtained.

399665

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