172273-69-7Relevant articles and documents
URETHANE AND OLIGOURETHANE DERIVATIVES AND CORRESPONDING USES AND METHODS FOR PRODUCING WATER MARKS USING THE OFFSET PRINTING TECHNIQUE
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Page/Page column 18, (2009/01/20)
Urethane and oligourethane derivatives and corresponding uses and methods of producing watermarks using the offset printing technique. The invention relates to compounds having general formula (R-O-CO-NH-X-NH-CO-O-(-A-O-CO-NH-X'-NH-CO-O-)n-R' (