(19)
(11) EP 0 251 606 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.10.1990 Bulletin 1990/42

(43) Date of publication A2:
07.01.1988 Bulletin 1988/01

(21) Application number: 87305495.1

(22) Date of filing: 22.06.1987
(51) International Patent Classification (IPC)4: C06B 45/10, C06B 21/00, C06B 47/14
(84) Designated Contracting States:
AT BE CH DE ES FR GR IT LI LU NL SE

(30) Priority: 21.06.1986 GB 8615212

(71) Applicant: Freeman Chemicals Limited Polymers Division
Ellesmere Port South Wirral L65 0HB (GB)

(72) Inventors:
  • Parr, Alan James
    Corwen Clwyd (GB)
  • Wosley, Martin
    Saltney Chester (GB)

(74) Representative: Lyons, Andrew John et al
ROYSTONS Tower Building Water Street
Liverpool L3 1BA
Liverpool L3 1BA (GB)


(56) References cited: : 
   
       


    (54) Protection of dangerous substances


    (57) Explosive substances are encapsulated in a gel formed by reacting a hydrophilic polymer, such as a polyisocyanate prepolymer, and an aqueous reactant, such as water.





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