Global Patent Index - EP 0157019 A1

EP 0157019 A1 19851009 - Film or sheet material coated with a layer promoting the adherence thereto of a hydrophilic colloid layer.

Title (en)

Film or sheet material coated with a layer promoting the adherence thereto of a hydrophilic colloid layer.

Title (de)

Film- oder blattförmiges, mit einer die Haftung einer hydrophilen Kolloidschicht fördernden Schicht überzogenes Material.

Title (fr)

Matériau sous forme de film ou de feuille, recouvert d'une couche favorisant l'adhérence à ce matériau d'une couche colloidale hydrophile.

Publication

EP 0157019 A1 19851009 (EN)

Application

EP 84200414 A 19840322

Priority

EP 84200414 A 19840322

Abstract (en)

A plate, sheet or film material having a hydrophobic resin or glass surface coated with a subbing layer promoting the adherence thereto of a layer containing a hydrophilic colloid, characterized in that said subbing layer is essentially free from synthetic organic polymer and comprises: (1) from 35 to 75% by weight of colloidal silica, (2) from 25 to 65% by weight of an aromatic hydroxy compound that can be applied from an aqueous medium in dissolved form, and (3) from 0 to 15% by weight of a proteinaceous hydrophilic colloid.

IPC 1-7

G03C 1/80

IPC 8 full level

G03C 1/785 (2006.01); G03C 1/91 (2006.01); G03C 1/95 (2006.01)

CPC (source: EP)

G03C 1/785 (2013.01); G03C 1/91 (2013.01); G03C 1/95 (2013.01)

Citation (search report)

Designated contracting state (EPC)

BE

DOCDB simple family (publication)

EP 0157019 A1 19851009

DOCDB simple family (application)

EP 84200414 A 19840322