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1. (WO2018029437) WET SURFACE INDICATION

Pub. No.:    WO/2018/029437    International Application No.:    PCT/GB2017/052123
Publication Date: Fri Feb 16 00:59:59 CET 2018 International Filing Date: Thu Jul 20 01:59:59 CEST 2017
IPC: G09F 19/22
B32B 5/00
E04F 13/08
E04B 5/46
G01N 21/81
Applicants: OXFORD UNIVERSITY INNOVATION LIMITED
Inventors: DOBSON, Peter James
PINCHER, Leonard
Title: WET SURFACE INDICATION
Abstract:
A product (20) for use on a surface or as part of a surface, the product comprising: a first layer (22) which carries an indication; and a second layer (26) which overlies at least a portion of the first layer (22), the second layer (26) comprising a porous polymer; wherein the second layer (26) is opaque when dry such that the indication is masked and transparent when wet such that the indication is revealed.