(19)
(11) EP 0 027 804 A1

(12)

(43) Date of publication:
06.05.1981 Bulletin 1981/18

(21) Application number: 80900721.0

(22) Date of filing: 23.04.1980
(51) International Patent Classification (IPC): 
C08G 63/ 68( . )
C09D 11/ 02( . )
C09F 7/ 00( . )
 C08G 63/ 695( . )
C09D 11/ 10( . )
(86) International application number:
PCT/GB1980/000070
(87) International publication number:
WO 1980/002292 (30.10.1980 Gazette 1980/25)
(84) Designated Contracting States:
DE FR GB NL SE

(30) Priority: 23.04.1979 GB 19790014028

(71) Applicant: NATIONAL RESEARCH DEVELOPMENT CORPORATION
London SE1 6BU (GB)

(72) Inventors:
  • PODD, Barry David
    New Romney, Kent (GB)
  • BURSTALL, Michael Lyle
    Guildford, Surrey (GB)
  • Lee, Kok Hwee
    Guildford, Surrey (GB)

   


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