Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1974-02-13
1976-02-03
Herbert, Jr., Thomas J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
8 46, 8DIG7, 427 8, 427256, 427258, 427288, 428262, B41M 314
Patent
active
039365565
ABSTRACT:
A process for identifying manufactured articles in which a marking agent such as a homo- or copolymer of polymerizable ethylenically unsatured monomers is applied to the articles. Said homo- or copolymer contains at least one group which can be split off to form a low molecular weight compound such as an amine or phenol, which can be converted into dyes, said dyes being used to identify the manufactured articles.
REFERENCES:
patent: 3177214 (1965-04-01), Sulzer et al.
Striegler Hellmut
Suling Carlhans
Theidel Hans
VON Langenthal Wolfram
Bayer Aktiengesellschaft
Herbert, Jr. Thomas J.
Hess Bruce H.
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