| abstract |
A composition that can be used as a catalyst is disclosed. The composition comprises a titanium compound, a glycol, a phosphorus compound, and optionally water, or is produced in combination thereof. Also disclosed are methods that can be used to produce polyester. The method comprises contacting a carbonyl compound with an alcohol in the presence of a catalyst composition at conditions suitable for esterification, transesterification, or polymerization. The catalyst composition comprises or consists of a titanium compound, a glycol, a phosphorus compound and optionally water. |