公开(公告)号：WO1985001227A1

公开(公告)日：1985-03-28

申请号：PCT/US1984001499

申请日：1984-09-19

Applicant: BURROUGHS CORPORATION

Inventor： BURROUGHS CORPORATION ,  HO, Wu-Jing

IPC: B05D03/06

CPC classification number: G11B7/2542 ,  G11B7/252 ,  G11B7/2595

Abstract: Protective overcoatings for an information storage record which includes an information-layer adapted for optical data recording. The protective overcoatings are transparent to recording radiation and especially adapted to enhance service life and recording characteristics. A typical coating comprises the polymerization product of a formulation including at least one radiation-cured "bulk resin" (e.g., an acrylamide or an acrylate monomer or pre-polymer), plus an associated non-yellowing photo-initiator, a non-yellowing adhesion-promoter and related coating-constituents. Once applied, this coating is cured by exposure to UV radiation such as to cure it without heating it significantly so that said radiation functions as the sole or principal polymerizing agent, acting quickly, and with little or no supplemental heat, and without extended "tackiness". This formulation will readily "level" to render the desired coating to serve as a mechanical/chemical barrier.

公开(公告)号：WO1985001228A1

公开(公告)日：1985-03-28

申请号：PCT/US1984001500

申请日：1984-09-19

Applicant: BURROUGHS CORPORATION

Inventor： BURROUGHS CORPORATION ,  LEE, Neville ,  HO, Wu-Jing ,  TEOLIS, Joseph, B.

IPC: B05D03/06

CPC classification number: G11B7/2542 ,  B05D1/002 ,  G11B7/24056 ,  G11B7/252 ,  G11B7/256 ,  G11B2007/24316

Abstract: This disclosure concerns methods of applying protective overcoatings to an information storage record which includes an information-layer adapted for optical data recording. The protective overcoatings are transparent to recording radiation and especially adapted to enhance service life and recording characteristics. A typical coating comprises the polymerization product of a formulation including at least one radiation-cured bulk resin (e.g., an acrylamide or an acrylate monomer or pre-polymer), plus an associated non-yellowing photo-initiator, a non-yellowing adhesion-promoter and related coating-constituents. Once applied, this coating is cured by exposure to UV radiation such as to cure it without heating it significantly. Leveling is accelerated and enhanced by dispersing the coating as beads with a nozzle (n) placed close enough to the substrate to top the beads in the fashion of a doctor blade.