;  WO200172415-A1 -- DE2715094-A   IMPERIAL CHEM IND LTD (ICIL);  EP17000-A   BASF AG (BADI)   KRABETZ R,  HERRMANN W,  ENGELBACH H;  EP547756-A1   EXXON RES & ENG CO (ESSO)   CODY I A,  HAFEZ M M,  ZINKIE D N;  EP714700-A2   BASF AG (BADI)   TENTEN A,  WEIDLICH P,  LINDEN G;  JP54157507-A   ;  US4764498-A   BAYER AG (FARB)   WISSNER A,  HAYDN J,  BIRKENSTOC U;  US6177381-B1   UOP LLC (UNVO)   JENSEN R H,  BRICKER J C,  CHEN Q,  TATSUSHIMA M,  KIKUCHI K,  TAKAYAMA M,  HARA K,  TSUNOKUMA I,  SERIZAWA H;  WO1998014274-A1   ;  US2003036476-A1 -- US4126645-A   IMPERIAL CHEM IND LTD (ICIL);  US4255253-A   STANDARD OIL CO OHIO (STAH)   HERRINGTON D R,  SCHWERKO A P,  DOLHYI S R,  SHAW W G;  US4297247-A   BASF AG (BADI)   KRABETZ R,  HERRMANN W,  ENGELBACH H;  US4764498-A   BAYER AG (FARB)   WISSNER A,  HAYDN J,  BIRKENSTOC U;  US4851584-A   BASF AG (BADI)   FRITZ G,  HUPFER L,  SCHULTHEIS H;  US5082814-A   ENGELHARD CORP (ENGH)   STOCKWELL D M,  KOERMER G S,  JAGLOWSKI W M;  US5200382-A   EXXON RES & ENG CO (ESSO)   CODY I A,  HAFEZ M M,  ZINKIE D N;  US5677261-A   BASF AG (BADI)   TENTEN A,  WEIDLICH P,  LINDEN G;  US6177381-B1   UOP LLC (UNVO)   JENSEN R H,  BRICKER J C,  CHEN Q,  TATSUSHIMA M,  KIKUCHI K,  TAKAYAMA M,  HARA K,  TSUNOKUMA I,  SERIZAWA H;  US6280608-B1   UOP LLC (UNVO)   JENSEN R H,  BRICKER J C,  CHEN Q,  TATSUSHIMA M,  KIKUCHI K,  TAKAYAMA M,  HARA K,  TSUNOKUMA I,  SERIZAWA H;  US6288273-B1   BASF AG (BADI)   HEIDEMANN T,  CIMNIAK T,  ULRICH B;  EP1278600-B1 -- DE2715094-A   IMPERIAL CHEM IND LTD (ICIL);  EP17000-A   BASF AG (BADI)   KRABETZ R,  HERRMANN W,  ENGELBACH H;  EP547756-A1   EXXON RES & ENG CO (ESSO)   CODY I A,  HAFEZ M M,  ZINKIE D N;  EP714700-A2   BASF AG (BADI)   TENTEN A,  WEIDLICH P,  LINDEN G;  JP54157507-A   ;  US4764498-A   BAYER AG (FARB)   WISSNER A,  HAYDN J,  BIRKENSTOC U;  US6177381-B1   UOP LLC (UNVO)   JENSEN R H,  BRICKER J C,  CHEN Q,  TATSUSHIMA M,  KIKUCHI K,  TAKAYAMA M,  HARA K,  TSUNOKUMA I,  SERIZAWA H;  WO1998014274-A1