Adhesion Promoter
Blocking Agent
Catalyst Donor
Coupling Agent
Crosslinking Agent
Crosslinker
Curing Agent
Defoamer
Dispersing Agent
Drying Agent
Foam Stabilizer
Hydrophobing Agents
Leveling Agent
Protective Agent
Reducing Agent
Reinforcing Agent
Silylating Agent
Surface Modifier
Water Scavenger



Silane Donors for Polypropylene Catalysts
Various SiSiB alkylalkoxy silane have been used as components in Ziegler-Natta Polymerization Catalyst Systems.

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.

The following list shows all commercially available silane donors of PCC.

  Benefits
  Increase yield of polymer per unit weight of catalyst.
  Increase isotactic content of polypropylene-based polymers.
  Improve molecular weight dispersity of the polymer.

SiSiB CODE CHEMICAL NAME CAS NO.
SiSiB® PC5931 PROPYLTRIMETHOXYSILANE 1067-25-0
   
SiSiB® PC8132 PHENYLTRIETHOXYSILANE (DONOR-A) 780-69-8
   
SiSiB® PC8221 DIPHENYLDIMETHOXYSILANE (DONOR-B) 6843-66-9
   
SiSiB® PC9500 CYCLOHEXYLMETHYLDIMETHOXYSILANE (DONOR-C) 17865-32-6
   
SiSiB® PC9510 DIISOBUTYLDIMETHOXYSILANE 17980-32-4
   
SiSiB® PC9520 DIISOPROPYLDIMETHOXYSILANE (DONOR-P) 18230-61-0
   
SiSiB® PC9530 DICYCLOPENTYLDIMETHOXYSILANE (DONOR-D) 126990-35-0
   
SiSiB® PC9540 ISOBUTYLISOPROPYLDIMETHOXYSILANE 111439-76-0
   
SiSiB® SILANES 2016 SiSiB® SILICONES 2016
SiSiB® FUMED SILICA SiSiB® SILICONE RUBBER 2016
SiSiB® Silicones for Textile SiSiB® SILANE DONORS
SiSiB® Silicones Water Repellents SiSiB® Silicones for Personal Care
SiSiB® Silicone PU Additives SiSiB® Silicone Coating Additives
SiSiB® Silicone Masterbatch for Plastic SiSiB® STP (Silane Terminated Polymer)
SiSiB® Silane Crosslinkers SiSiB® Silane Coupling Agents