Photopolymerization process for reproducing images

Claim 1

A PROCESS FOR FORMING IMAGES FROM A STRATUM WHICH IS SOLID BELOW 40*C. AND CONTAINS (1) UNDEREXPOSED, TACKY IMAGE ARES WHICH ARE THERMALLY TRANSFERABLE BY HAVING A STICK OR TRANSFER TEMPERATURE ABOVE 40*C. AND BELOW 220*C., COMPRISING (A) A THERMOPLASTIC COMPOUND SOLID AT 50* C. AND (B) AN ETHYLENICALLY UNSATURATED COMPOUND CONTAINING AT LEAST ONE TERMINAL ETHYLENIC GROUP HAVING A BOILING POINT ABOVE 100*C. AT NORMAL ATMOSPHERIC PRESSURE AND BEING CAPABLE OF FORMING A HIGH POLYMER BY PHOTOINITITATED ADDITION POLYMERIZATION, AND (2) EXPOSED, COMPLEMENTARY, ADJOINING NON-TACKY IMAGE AREAS SOLID AT 50*C., NOT THERMALLY TRANSFERABLE, AND COMPRISING AN ADDITION POLYMER OFWHICH THE UNDEREXPOSED AREAS ARE THERMALLY TRANSFERABLE, AND COMPRISING AN ADDITION POLYMER OF AN AFORESAID ETHYLENICALLY UNSATURATED COMPOUND AND SAID THERMOPLASTIC COMPOUND; SAID PROCESS COMPRISING (A) APPLYING TO THE SURFACE OF SAID STRATUM FINELY DIDIVED PARTICLES OF MATERIAL AT A TACK TEMPERATURE AT WHICH SAID PARTICLES ARE SOLID AND ADHERENT TO SAID TACKY IMAGE AREAS, (B) REMOVING SAID PARTICLES FROM SAID NON-TACKY IMAGE AREAS, (C) PLACING THE OUTER SURFACE OF SAID STRATUM HAVING ADHERENT, SOLID PARTICLES IN CONTACT WITH THE IMAGERECEPTIVE SURFACE OF A SEPARATE ELEMENT AND HEATING SAID ELEMENTS WHILE IN CONTACT TO A TRANSFER TEMPERATURE OF AT LEAST 40*C. TO SELECTIVELY SOFTEN THE UNDEREXPOSED IMAGE AREAS BEARING THE PARTICLES, AND (D) SEPARATING THE TWO ELEMENTS WHEREBY THE UNDEREXPOSED IMAGE AREAS AND ADHERENT PARTICLES ARE TRANSFERRED TO THE IMAGE-RECEPTIVE ELEMENT.