Malaysian Palm Oil Board

Tuan Noor Maznee Tuan Ismail

Hazimah Abu Hassan

Salmiah Ahmad

Seng Soi Hoong

Tian Lye Ooi

Shoot Kian Yeong

Mohd Norhisham Sattar

Kosheela Devi A/p Poo Palam

Kosheela Devi Poo Palam

Rozana Abu Bakar

Mei Yee Cheong

Khalid Haron

A controlled-release fertilizer comprising fertilizer particles encapsulated in a biodegradable polyurethane obtained from a reaction between a polyisocyanate and an isocyanate-reactive component, which is formed by a polyol and a methyl ester derivative of a natural oil, in the presence of an amine catalyst.

Controlled-release fertilizer

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.

Process to produce polyols

Growing community of inventors

Selangor, Malaysia

Tuan Noor Maznee Tuan Ismail