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Title: Method of desensitizing a pressure sensitive recording sheet and the product thereof

Abstract: The pressure sensitive recording sheet is partially desensitized by applying an improved desensitizer to a predetermined area thereof. The improved desensitizer comprises a reaction product produced by the reaction of ammonia, amines, diamines or polyamines with glycidyl esters or glycidyl ethers. The improved desensitizer is hydrophobic and soluble in an oil vehicle.


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Inventors: Tada, Tomonori (Osaka, JA)
Shiono, Akira (Osaka, JA)

Application Number: 413437
Filing Date: 1973-11-07
Publication_date: 1976-01-06
Assignee: Kanzaki Paper Mfg. Co. Ltd. (Tokyo, JA)
Primary Class(es): 503/201 427/146, 427/150, 427/151, 503/205, 503/206
Other Classes:
US Patent Ref:
2654673Oct, 1953Steinhardt106/22.
2730456Jan, 1956Green et al.117/36.
2730457Jan, 1956Green et al.117/36.
3809668May, 1974Yarian260/33.

Other Refs:
Primary Examiner: Herbert, Jr., Thomas J.
Assistant Examiner: Hess, Bruce H.
Attorney: Cushman, Darby & Cushman