The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2011
Filed:
Mar. 28, 2008
Hazimah Abu Hassan, Selangor, MY;
Tuan Noor Maznee Tuan Ismail, Selangor, MY;
Mohd Norhisham Sattar, Selangor, MY;
Seng Soi Hoong, Kuala Lumpur, MY;
Tian Lye Ooi, Selangor, MY;
Salmiah Ahmad, Selangor, MY;
Kosheela Devi A/p Poo Palam, Selangor, MY;
Mei Yee Cheong, Selangor, MY;
Hazimah Abu Hassan, Selangor, MY;
Tuan Noor Maznee Tuan Ismail, Selangor, MY;
Mohd Norhisham Sattar, Selangor, MY;
Seng Soi Hoong, Kuala Lumpur, MY;
Tian Lye Ooi, Selangor, MY;
Salmiah Ahmad, Selangor, MY;
Kosheela Devi a/p Poo Palam, Selangor, MY;
Mei Yee Cheong, Selangor, MY;
Malaysian Palm Oil Board, Selangor, MY;
Abstract
A process for producing oleochemical polyols comprises the steps of epoxidizing unsaturated oil using an organic acid together with oxygenated water or a per-acid to obtain epoxidized oil; washing the epoxidized oil with salt water to remove unused organic acid together with oxygenated water or a per-acid; neutralizing acidic condition of the washed epoxidized oil with a base; washing the neutralized epoxidized oil with a salt solution until the pH of the neutralized epoxidized oil reaching 6.5 to 7.5 to removed the base residue; drying the washed neutralized epoxidized oil under vacuum; and reacting the washed neutralized dried epoxidized oil with polyhydric alcohol in the presence of boron trifluoride-diethylether complex to produce the oleochemical polyols. The oleochemical polyols are then subjected to the same washing, neutralizing, washing and drying process as in preparing the washed neutralized dried epoxidized oil.