DONOR SILANES

Different silane donors with differing organoalkoxy structures are used depending on the exact nature of the catalyst and the type of polypropylene being manufactured. Organic substituents, such as cyclohexyl, cyclopentyl, methyl, isobutyl and phenyl, are some of the organic groups attached to silicon. The alkoxy groups are either methoxy or ethoxy with one, two, or three alkoxy groups on the silane molecule.

SiSiB CODE	CHEMICAL NAME	CAS NO.
SiSiB® PC5931	PROPYLTRIMETHOXYSILANE	1067-25-0
SiSiB® PC8132	PHENYLTRIETHOXYSILANE (DONOR-A)	780-69-8
	Use as a component in a Ziegler-Natta olefin polymerization catalyst system.
SiSiB® PC8221	DIPHENYLDIMETHOXYSILANE (DONOR-B)	6843-66-9
	Use as a component in a Ziegler-Natta olefin polymerization catalyst system.
SiSiB® PC9500	CYCLOHEXYLMETHYLDIMETHOXYSILANE (DONOR-C)	17865-32-6
	Use as a component in a Ziegler-Natta olefin polymerization catalyst system.
SiSiB® PC9510	DIISOBUTYLDIMETHOXYSILANE	17980-32-4
	Use as a component in a Ziegler-Natta olefin polymerization catalyst system.
SiSiB® PC9520	DIISOPROPYLDIMETHOXYSILANE (DONOR-P)	18230-61-0
	Use as a component in a Ziegler-Natta olefin polymerization catalyst system.
SiSiB® PC9530	DICYCLOPENTYLDIMETHOXYSILANE (DONOR-D)	126990-35-0
	Use as a component in a Ziegler-Natta olefin polymerization catalyst system.
SiSiB® PC9540	ISOBUTYLISOPROPYLDIMETHOXYSILANE	111439-76-0
	Use as a component in a Ziegler-Natta olefin polymerization catalyst system.