(19)
(11) EP 0 464 107 A1

(12)

(43) Date of publication:
08.01.1992 Bulletin 1992/02

(21) Application number: 90905330.0

(22) Date of filing: 21.03.1990
(51) International Patent Classification (IPC): 
A01K 63/ 04( . )
B01J 7/ 02( . )
C01B 31/ 20( . )
A62B 21/ 00( . )
C01B 13/ 02( . )
(86) International application number:
PCT/US1990/001523
(87) International publication number:
WO 1990/011248 (04.10.1990 Gazette 1990/23)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB IT LI LU NL SE

(30) Priority: 21.03.1989 US 19890326791

(71) Applicant: LIM TECHNOLOGY LABORATORIES, INC.
Richmond, VA 23219 (US)

(72) Inventors:
  • LIM, Franklin
    Richmond, VA 23226 (US)
  • MOSS, Richard, D.
    Chester, VA 23831 (US)

(74) Representative: Gutmann, Ernest, et al 
Ernest Gutmann - Yves Plasseraud S.A. 3, rue Chauveau-Lagarde
F-75008 Paris
F-75008 Paris (FR)

   


(54) CONTROLLED RELEASE OF DESIRED PRODUCT THROUGH THE CONTROLLED REACTION OF PRECURSOR