Abu Hassan
Hazimah Abu Hassan, Selangor MY
Patent application number | Description | Published |
---|---|---|
20080293913 | PROCESS TO PRODUCE POLYOLS - 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. | 11-27-2008 |
20100240929 | PROCESS FOR PREPARING POLYMERS OF POLYHYDRIC ALCOHOLS - The present invention relates to a process for accelerated preparation of linear polymers of polyhydric alcohols using microwave irradiation as the heat element in the presence of specified catalysts. | 09-23-2010 |
20140290319 | Controlled-Release Fertilizer - 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. | 10-02-2014 |
Hazimah Abu Hassan, Kajang MY
Patent application number | Description | Published |
---|---|---|
20110118508 | PROCESS OF PRODUCING POLYGLYCEROL FROM CRUDE GLYCEROL - The present invention relates to a process for accelerated preparation of polyglycerol from crude glycerol using microwave irradiation as the heat element in the presence of soap as the catalyst. The process includes the steps of (a) heating the crude glycerol that contain soap to an elevated temperature for a certain reaction time by using a microwave technology, (b) acidifying the crude polyglycerol with mineral acid at a specific temperature and centrifuging acidified crude product obtained from step (b) at a specific temperature for a certain duration of time. | 05-19-2011 |
20110190545 | PROCESS OF PRODUCING POLYGLYCEROL FROM CRUDE GLYCEROL - Accordingly, the present invention provides a process for preparing polyglycerol from crude glycerol, wherein the crude glycerol having a glycerol content from about 60 to about 90%, soap content from about 10 to about 15% and methanol content from about 5 to about 20%, the process includes the steps of (a) heating the crude glycerol that contains soap to an elevated temperature for a certain reaction time, (b) acidifying the crude polyglycerol with mineral acid at a specific temperature and (c) centrifuging the acidified crude product obtained from step (b) at specific temperature for a certain duration of time. | 08-04-2011 |
Hazimah Abu Hassan, Selangor Darul Ehsan MY
Patent application number | Description | Published |
---|---|---|
20140295506 | METHOD TO PRODUCE HYDRAZIDE - A method to produce hydrazide from triacylglycerol, the method includes steps of mixing vegetable oil with an organic solvent in a reactor forming a mixture, adding hydrazinemonohydrate into the mixture, stirring the mixture, adding catalyst, stirring the mixture to form hydrazide and separating the hydrazide from the mixture. Most illustrative drawing: | 10-02-2014 |