[EN] BISINDENYL ZIRCONIUM COMPLEXES FOR USE IN THE POLYMERISATION OF OLEFINS<br/>[FR] COMPLEXES DE ZIRCONIUM DE BISINDENYLE UTILISABLES POUR LA POLYMERISATION D'OLEFINES
申请人:BASELL POLYOLEFINE GMBH
公开号:WO2004106351A1
公开(公告)日:2004-12-09
The present invention relates to organometallic transition metal compounds of the formula (I); biscyclopentadienyl ligand systems having such a substitution pattern, catalyst systems comprising at least one of the organometallic transition metal compounds of the present invention, a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention and also the use of the biscyclopentadienyl ligand systems of the present invention for preparing organometallic transition metal compounds.
2-indanmethanol derivatives and their use in perfumery
申请人:Firmenich SA
公开号:US06323173B1
公开(公告)日:2001-11-27
The compounds of the formula
wherein the symbols R1, R2, R3 and R4 represent, independently of one another, a hydrogen atom or a linear or branched, saturated or unsaturated C1 to C3 lower alkyl radical, are advantageous as perfuming ingredients for the preparation of perfuming compositions and perfumed articles, to which they impart odoriferous notes of the lily of the valley type.
Bisindenyl zirconium complexes for use in the polymerization of olefins
申请人:Okumura Yoshikuni
公开号:US20060252637A1
公开(公告)日:2006-11-09
The present invention relates to organometallic transition metal compounds of the formula (I); biscyclopentadienyl ligand systems having such a substitution pattern, catalyst systems comprising at least one of the organometallic transition metal compounds of the present invention, a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of one of the catalyst systems of the present invention and also the use of the biscyclopentadienyl ligand systems of the present invention for preparing organometallic transition metal compounds.
Dérivés du 2-indaneméthanol et leur utilisation à titre d'ingrédients parfumants
申请人:FIRMENICH SA
公开号:EP1022265A1
公开(公告)日:2000-07-26
Les composés de formule
dans laquelle les symboles R1, R2, R3 et R4 représentent, indépendamment l'un de l'autre, un atome d'hydrogène ou un radical alkyle inférieur de C1 à C3, linéraire ou ramifié, saturé ou insaturé, sont utiles à titre d'ingrédients parfumants pour la préparation de compositions parfumantes et articles parfumés, auxquels ils impartissent des notes odorantes de type muguet.