Title:
【発明の名称】機械読み取り可能マーキング用保護コーティング物
Document Type and Number:
Japanese Patent JP3248722
Kind Code:
B2
Abstract:
A method of protecting machine-readable markings on the surfaces of articles consisting in applying to the machine-readable markings a thin layer of an amorphous fluoropolymer, which may be, i.a., a copolymer of perfluoro(1,3-dioxole) or of perfluoro(2,2-dimethyl-1,3-dioxole) with a fluoromonomer selected from a specifically recited group, especially, with tetrafluroethylene; or a cyclic aliphatic homopolymer in which the repeating unit contains an aliphatic ring of 5-9 members, at least two of the ring members being carbon atoms independently substituted either by fluorine atoms or by perfluoromethyl groups, at most two of the ring atoms being oxygen atoms, the remaining portions of the repeating units, when present, being pefluoromethylene groups.
Inventors:
Frogatto, Ames Logicer
Application Number:
JP51248493A
Publication Date:
January 21, 2002
Filing Date:
December 30, 1992
Export Citation:
Assignee:
E. I. Dupont Do Nemour & Company
International Classes:
B41M7/00; C09D127/12; C09D129/00; C09D129/10; C09D157/08; (IPC1-7): B41M7/00; C09D127/12; C09D129/10
Domestic Patent References:
| JP295883A | ||||
| JP341143A | ||||
| JP2129254A | ||||
| JP6507201A | ||||
| JP3502585A |
Attorney, Agent or Firm:
Heiyoshi Odashima (1 person outside)