Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1991-12-19
1994-04-19
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
106 21A, 106 21R, 524237, 524556, 524 95, 525349, B42D 1500, C09D 1100, C09D 1110, B44F 112
Patent
active
053045874
ABSTRACT:
A security composition for use with an ink composition including diphenyl guanidine and acrylic resin. The ink composition may further include a glycol ether and a plasticizer and can be printed on paper, for example in the word "VOID". If bleach is used to attempt to alter the document, the initially colorless ink will form a colored image in the shapes or letters printed on the paper. The ink composition is resistant to leaching upon contact with, for example, water.
REFERENCES:
patent: 1839995 (1932-01-01), Remick
patent: 1911774 (1933-05-01), Smith
patent: 2767154 (1956-10-01), Weihe
patent: 3802724 (1974-04-01), Gosnell
patent: 3870841 (1975-03-01), Makowski et al.
patent: 4037007 (1977-07-01), Wood
patent: 4170578 (1979-10-01), Schelhaas
patent: 4171982 (1979-10-01), Lin
patent: 4227719 (1980-10-01), McElligott et al.
patent: 4478681 (1984-10-01), Muller et al.
patent: 4540628 (1985-09-01), Oberdeck et al.
patent: 4710617 (1987-12-01), Mouchotte
patent: 5058925 (1991-10-01), Dotson
patent: 5085925 (1992-02-01), Hiraoka et al.
Chemical Abstracts, vol. 93, No. 22, Dec. 1, 1980, Oji Paper Co., Ltd., Abekawa Paper Co., Ltd.; Abstract No. 206440, "Paper for Preventing Forgery", p. 104, col. 1.
Abstract-Derwent Publications Ltd., AN 74-33529; JP-A-49 005 047 (Ricoh Co. Ltd.) Jan. 17, 1974.
Apr. 7, 1993 Communication from European Patent Office, EP 92 310687.6, Search Report and Annex to Search Report.
Oswald Thomas R.
Raby James M.
Merriam Andrew E. C.
Michl Paul R.
Moore Business Forms Inc.
LandOfFree
Water resistant security ink composition does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Water resistant security ink composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water resistant security ink composition will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-20112