Light-sensitive composition comprising a diazonium salt condensate and a modified polyvinyl acetal polymer.

Patent 4741985 Issued on May 3, 1988. Estimated Expiration Date:

June 6, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3396019

Photosensitive composition
Patent #: 4123276
Issued on: 10/31/1978
Inventor: Kita , et al.

Process of developing posi-type lithographic printing plate with inorganic alkali solution
Patent #: 4467027
Issued on: 08/21/1984
Inventor: Yamamoto , et al.

Photosensitive composition admixture of a diazonium salt polycondensation product and polymeric binder with carboxyl side chain groups Patent #: 4631245
Issued on: 12/23/1986
Inventor: Pawlowski

Inventors

Application

No. 06/871343 filed on 06/06/1986

US Classes:

430/175, Polymeric diazonium compound430/176Polymeric mixture

Examiners

Primary: Michl, Paul R.
Assistant: Stevenson, Terri

Attorney, Agent or Firm

Sughrue, Mion, Zinn, Macpeak, and Seas

International Classes

G03F 7/021 (20060101)
G03F 7/016 (20060101)
C08F 8/00 (20060101)

Foreign Application Priority Data

1985-06-07 JP

Abstract

A light-sensitive composition comprising a diazonium compound and a polymer having the recurring units represented by the following general formula (I): ##STR1## wherein R1 represents a hydrogen atom or a substituted or unsubstituted alkyl group; R2 represents an unsubstituted alkyl group; R3 represents an aliphatic or aromatic hydrocarbon group having a carboxyl group; R4 represents an aliphatic or aromatic hydrocarbon group which has at least one hydroxyl or nitrile group and which may be further substituted; n1, n2, n3, n4 and n5 represent the molar percents of the respective recurring units, provided that n1 is from about 5 to about 85 mol %, n2 is from 0 to about 60 mol %, n3 is from 0 to about 20 mol %, n4 is from about 3 to about 60 mol % and n5 is from greater than 0 to about 60 mol %.