WO9913980-A1 -- EP294845-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H,  KAISER S W,  OCONNOR G L;  EP441312-A   NIPPON SHOKUBAI KAGAKU KOGYO (JAPC)   HASHIBA H,  OHNO S,  KURIMOTO I,  AOKI Y;  GB2002770-A   ;  US5049692-A   MITSUBISHI KASEI CORP (MITU)   HATANO M,  KAYO A;  US5907056-A -- EP294845-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H,  KAISER S W,  OCONNOR G L;  EP407091-A   BP CHEM LTD (BRPE)   KITSON M;  EP480594-A   BP CHEM LTD (BRPE)   HALLETT C;  EP620205-A1   SHOWA DENKO KK (SHOW)   SUZUKI T,  YOSHIKAWA H,  ABE K,  SANO K;  EP627401-A1   ;  EP518548-A2   ;  US3057915-A   ;  US3240805-A   ;  US3301905-A   ;  US4148757-A   STANDARD OIL CO OHIO (STAH)   BRAZDIL J F,  GRASSELLI R K,  SURESH D D;  US4250054-A   ;  US4250346-A   UNION CARBIDE CORP (UNIC)   YOUNG E G,  THORSTEINS E M;  US4339355-A   UNION CARBIDE CORP (UNIC);  US4524236-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H;  US4568790-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H;  US4596787-A   UNION CARBIDE CORP (UNIC)   MANYUK R M,  MANYIK R M,  MCCAIN J H;  US4899003-A   UNION CARBIDE CHEM (UNIC)   MANYIK R M,  BROCKWELL J J,  KENDALL J E;  US5049692-A   MITSUBISHI KASEI CORP (MITU)   HATANO M,  KAYO A;  US5162578-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H,  KAISER S W,  OCONNOR G L;  US5198580-A   STANDARD OIL CO OHIO (STAH)   BARTEK J P,  EBNER A M,  BRAZDIL J F;  US5300682-A   ;  US6013597-A -- EP294845-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H,  KAISER S W,  OCONNOR G L;  EP407091-A   BP CHEM LTD (BRPE)   KITSON M;  EP480594-A   BP CHEM LTD (BRPE)   HALLETT C;  EP620205-A1   SHOWA DENKO KK (SHOW)   SUZUKI T,  YOSHIKAWA H,  ABE K,  SANO K;  EP627401-A1   ;  EP518548-A2   ;  US3057915-A   ;  US3240805-A   ;  US3301905-A   ;  US4148757-A   STANDARD OIL CO OHIO (STAH)   BRAZDIL J F,  GRASSELLI R K,  SURESH D D;  US4250346-A   UNION CARBIDE CORP (UNIC)   YOUNG E G,  THORSTEINS E M;  US4339355-A   UNION CARBIDE CORP (UNIC);  US4524236-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H;  US4568790-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H;  US4596787-A   UNION CARBIDE CORP (UNIC)   MANYUK R M,  MANYIK R M,  MCCAIN J H;  US4899003-A   UNION CARBIDE CHEM (UNIC)   MANYIK R M,  BROCKWELL J J,  KENDALL J E;  US5049692-A   MITSUBISHI KASEI CORP (MITU)   HATANO M,  KAYO A;  US5162578-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H,  KAISER S W,  OCONNOR G L;  US5198580-A   STANDARD OIL CO OHIO (STAH)   BARTEK J P,  EBNER A M,  BRAZDIL J F;  US5300682-A   ;  EP938378-B1 -- EP294845-A   UNION CARBIDE CORP (UNIC)   MCCAIN J H,  KAISER S W,  OCONNOR G L;  EP441312-A   NIPPON SHOKUBAI KAGAKU KOGYO (JAPC)   HASHIBA H,  OHNO S,  KURIMOTO I,  AOKI Y;  GB2002770-A   ;  US5049692-A   MITSUBISHI KASEI CORP (MITU)   HATANO M,  KAYO A;  JP4596377-B2 -- JP01085945-A   ;  JP02000257-A   ;  JP04210937-A   ;  JP54048704-A