Patent · US Expired

Positive and negative working imaging systems from photoactive plastisols

US4251618A · kind A · utility

11Cited by

5References

9Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Peter J. McCartin · Princeton Junction, US
William J. Nebe · Wilmington, US

Key dates

Filing date	Oct 11, 1978
Grant date	Feb 17, 1981
Priority date	—
Expiry date	Oct 11, 1998

Classification

Technology area (CPC G)Physics
CPC primaryG03F7/38
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Photoactive, thermally coalescible resin plastisol dispersions comprising a polyvinyl chloride polymer having attached to the polymer backbone photopolymerizable or photocrosslinkable groups dispersed in a liquid plasticizer medium, and a photoinitiator which is either a separate component or a photoactive substituent present on the polymer backbone. The photoactive plastisols, in the element form, can be used in an image formation process that is positive working washout or negative toned imaging system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.