Protective coatings for security documents
Номер патента: PH12015500656B1
Опубликовано: 11-05-2015
Автор(ы): Jean Garnier, Patrick Veya
Принадлежит: SICPA HOLDING SA
Опубликовано: 11-05-2015
Автор(ы): Jean Garnier, Patrick Veya
Принадлежит: SICPA HOLDING SA
Реферат: The present invention relates to the field of the protection of security documents, in particular banknotes, against premature detrimental influence of soil and/or moisture upon use and time. In particular, it relates radiation curable protective varnishes comprising one or more cationically curable compounds and one or more di-hydroxyl-terminated perfluoropolyether compounds of the general formula HO-(CH2CH2O)c-CH2-CF2O-(CF2-CF2-O)a-(CF2O)b-CF2-CH2-(OCH2CH2)d- OH, wherein a and b independently are integers in a range between 0 and 50, wherein a + b ]= 1, and wherein c and d may be the same or different and are in the range of 1-20, and their uses for providing a protective coating or layer on a security document.
Protective coatings for security documents
Номер патента: PH12015500656A1. Автор: Veya Patrick,Garnier Jean. Владелец: SICPA HOLDING SA. Дата публикации: 2015-05-11.