(19)
(11) EP 0 341 051 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.02.1990 Bulletin 1990/06

(43) Date of publication A2:
08.11.1989 Bulletin 1989/45

(21) Application number: 89304474.3

(22) Date of filing: 04.05.1989
(51) International Patent Classification (IPC)4: E04B 1/66
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI LU NL SE

(30) Priority: 04.05.1988 GB 8810488
04.05.1988 GB 8810489

(71) Applicant: W.R. GRACE LIMITED
London NW10 7UH (GB)

(72) Inventors:
  • Thompson, Peter James
    Purley Surrey (GB)
  • Martin, Timothy John
    Loxwood West Sussex (GB)

(74) Representative: Senior, Alan Murray et al
J.A. KEMP & CO., 14 South Square, Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)


(56) References cited: : 
   
       


    (54) Foldable waterproofing structure


    (57) A Structure comprising a membrane of a waterproofing pressure sensitive adhesive material (20) with, contiguous thereto, a layer of relatively rigid covering material (21) so arranged and divided into segmenets that the structure can be folded at the divisions between the segments.







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