WO2004096878-A1 -- JP01161069-A   ;  JP03056522-A   ;  JP49100193-A   JAPAN OIL SEAL IND CO (NIOC);  NIPPON OIL SEAL IND CO LTD (NIOD);  US3676398-A   PPG INDS INC (PITT);  US6515166-B1   BAKELITE AG (BAKE)   GRUNDKE U,  LIEBETANZ K,  KALLA V;  WO2000057506-A1   ;  US2006270810-A1 -- US3676398-A   PPG INDS INC (PITT);  US3770602-A   PPG INDS INC (PITT);  US5009982-A   TAIYO INK MFG CO LTD (TIYO)   KAMAYACHI Y,  INAGAKI S;  US5024785-A   DOW CHEM CO (DOWC)   HEFNER R E,  HAYNES D I;  US5849857-A   NIPPON SHOKUBAI CO LTD (JAPC)   AWAJI T,  OHTSUKI N,  ARAKAWA M;  US20040024124-A1   ;  US20060135705-A1   ;  US6251308-B1   PREMIX (PREM-Non-standard)   BUTLER K I;  US6515166-B1   BAKELITE AG (BAKE)   GRUNDKE U,  LIEBETANZ K,  KALLA V;  CN1826361-B -- JP01161069-A   ;  JP49100193-A   JAPAN OIL SEAL IND CO (NIOC);  NIPPON OIL SEAL IND CO LTD (NIOD);  US7786225-B2 -- JP01161069-A   ;  JP07252349-A   ;  JP49100193-A   JAPAN OIL SEAL IND CO (NIOC);  NIPPON OIL SEAL IND CO LTD (NIOD);  JP2001064340-A   NIPPON KAYAKU KK (NIPK)   OSHIMI K,  KIYOYANAGI M,  NAKAYAMA K,  WATANABE E;  JP55012043-B   ;  JP2908477-B2   ;  JP2003524862-W   PREMIX (PREM-Non-standard)   BUTLER K I;  US3676398-A   PPG INDS INC (PITT);  US3770602-A   PPG INDS INC (PITT);  US5009982-A   TAIYO INK MFG CO LTD (TIYO)   KAMAYACHI Y,  INAGAKI S;  US5024785-A   DOW CHEM CO (DOWC)   HEFNER R E,  HAYNES D I;  US5849857-A   NIPPON SHOKUBAI CO LTD (JAPC)   AWAJI T,  OHTSUKI N,  ARAKAWA M;  US20040024124-A1   ;  US20060135705-A1   ;  US6251308-B1   PREMIX (PREM-Non-standard)   BUTLER K I;  US6515166-B1   BAKELITE AG (BAKE)   GRUNDKE U,  LIEBETANZ K,  KALLA V;  WO2000057506-A1   ;  JP4687004-B2 -- JP08109232-A   ;  JP08259663-A   ;  JP09087346-A   ;  JP11140144-A   NIPPON KAYAKU KK (NIPK)   YOKOSHIMA M,  OKUBO T,  SASAHARA K;  JP2000169553-A   ;  JP2001151833-A   SHOWA DENKO KK (SHOW);  SHOWA HIGH POLYMER CO LTD (SHOP)   IINO T,  IMAIZUMI M,  FUJIHIRA R,  ENDO M,  MATSUI F,  HATANO Y;  JP2002164063-A   MITSUI TAKEDA CHEM INC (MITA)   OKUMURA H,  SHIBATA T;  JP80012043-B   JAPAN OIL SEAL IND CO (NIOC);  NIPPON OIL SEAL IND CO LTD (NIOD);  EP1621562-B1 -- JP01161069-A   ;  JP03056522-A   ;  JP49100193-A   JAPAN OIL SEAL IND CO (NIOC);  NIPPON OIL SEAL IND CO LTD (NIOD);  US3676398-A   PPG INDS INC (PITT);  US6515166-B1   BAKELITE AG (BAKE)   GRUNDKE U,  LIEBETANZ K,  KALLA V;  WO2000057506-A1