WO200006693-A  DATABASE WPI Section Ch, Week 9148 Derwent Publications Ltd., London, GB; Class C03, AN 91-351089 XP002120994 & JP 03 236724 A (SUMITOMO SEIKA CHEM CO LTD), 22 October 1991 (1991-10-22);  DATABASE WPI Section Ch, Week 9804 Derwent Publications Ltd., London, GB; Class D15, AN 98-036002 XP002120995 & JP 09 289836 A (TSURUSHI T), 11 November 1997 (1997-11-11);  PATENT ABSTRACTS OF JAPAN vol. 008, no. 140 (M-305), 29 June 1984 (1984-06-29) & JP 59 038554 A (SEKISUI KOUJI KK), 2 March 1984 (1984-03-02)EP1100867-A  See references of WO 0006693A1WO200006693-A1  PATENT ABSTRACTS OF JAPAN vol. 008, no. 140 (M-305), 29 June 1984 (1984-06-29) &amp; JP 59 038554 A (SEKISUI KOUJI KK), 2 March 1984 (1984-03-02);  DATABASE WPI Section Ch, Week 9148 Derwent Publications Ltd., London, GB; Class C03, AN 91-351089 XP002120994 &amp; JP 03 236724 A (SUMITOMO SEIKA CHEM CO LTD), 22 October 1991 (1991-10-22);  DATABASE WPI Section Ch, Week 9804 Derwent Publications Ltd., London, GB; Class D15, AN 98-036002 XP002120995 &amp; JP 09 289836 A (TSURUSHI T), 11 November 1997 (1997-11-11);  DATABASE WPI Section Ch, Week 9148 Derwent Publications Ltd., London, GB; Class C03, AN 91-351089 XP002120994 & JP 03 236724 A (SUMITOMO SEIKA CHEM CO LTD), 22 October 1991 (1991-10-22);  DATABASE WPI Section Ch, Week 9804 Derwent Publications Ltd., London, GB; Class D15, AN 98-036002 XP002120995 & JP 09 289836 A (TSURUSHI T), 11 November 1997 (1997-11-11);  PATENT ABSTRACTS OF JAPAN vol. 008, no. 140 (M-305), 29 June 1984 (1984-06-29) & JP 59 038554 A (SEKISUI KOUJI KK), 2 March 1984 (1984-03-02)EP1100867-B1  DATABASE WPI Section Ch, Week 9148 Derwent Publications Ltd., London, GB; Class C03, AN 91-351089 XP002120994 & JP 03 236724 A (SUMITOMO SEIKA CHEM CO LTD), 22 October 1991 (1991-10-22);  DATABASE WPI Section Ch, Week 9804 Derwent Publications Ltd., London, GB; Class D15, AN 98-036002 XP002120995 & JP 09 289836 A (TSURUSHI T), 11 November 1997 (1997-11-11);  PATENT ABSTRACTS OF JAPAN vol. 008, no. 140 (M-305), 29 June 1984 (1984-06-29) & JP 59 038554 A (SEKISUI KOUJI KK), 2 March 1984 (1984-03-02)