| King Abdulaziz City for Science and Technology (KACST) Patent applications |
| Patent application number | Title | Published |
|---|
| 20110278039 | ECO FRIENDLY CROSSLINKED FLAME RETARDANT COMPOSITION FOR WIRE AND CABLE - An eco friendly radiation cross-linked composition is described that demonstrates excellent resistance to fire and high temperature along with good mechanical properties. The composition which is based on a blend of EVA with a LLDPE, is free of monomer such as vinyl co-agent for radiation cross-linking. The halogen free flame retardant composition is a mixture of 20 to 90% by weight of magnesium hydroxide (powder A) and 90% to 20% of powder B. Preferably the powder B is a double salt of magnesium carbonate and calcium carbonate and the magnesium hydroxide has a specific surface treatment. In addition, 0.5 to 5 parts of flame retardancy auxiliary agents are selected from talc, zinc borate or molybdate derivative. The chemicals used here reduce toxicity in the environment and do not release toxic chemicals to air and soil during fire. The flame retardant cross-linked polyolefin composition is particularly useful for insulating wires and cables. | 11-17-2011 |
| 20110237837 | LOW PRESSURE ONE-STEP GAS-PHASE PROCESS FOR PRODUCTION OF METHYL ISOBUTYL KETONE - A low-pressure one-step gas-phase process for the production and recovery of methyl isobutyl ketone (MIBK) is disclosed. One-step gas-phase synthesis of MIBK from acetone and hydrogen over nano-Pd/nano-ZnCr | 09-29-2011 |
| 20110233815 | NOVEL COMPOSITION AND FILM USED FOR IRRADIATION MEASUREMENT - A tetrazolium bromide dye, e.g., 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), to be used as a high dose solution dosimeter is disclosed. The dose response of MTT solution dosimeter increases strongly with increase of absorbed dose up to 1 kGy. In order to increase the dose range and for ease of handling the present dosimeter as routine dosimeter, MTT-polyvinyl alcohol (PVA) film dosimeter is used. The dose response of MTT-PVA film dosimeters increases strongly with increase of absorbed dose up to 25 kGy. Polyvinyl butyral (PVB) as a polymer for making a film provides more stability at higher temperatures and humidity levels and less calibration is required. The dose response of MTT-PVB film dosimeters is effective with absorbed dose of up to 100 kGy. The effects of irradiation temperature, relative humidity, dose rate and the stability of the response of the films after irradiation were investigated and found that these films could be used as a routine dosimeter in industrial irradiation processing measurements. | 09-29-2011 |
| 20110197653 | SYNTHESIZING AND UTILIZING NOVEL RUTHENIUM NANOPARTICLE-ACTIVATED CHARCOAL-NANO-ZINC OXIDE COMPOSITE CATALYST - Ruthenium/activated charcoal (Ru/AC) treated with synthesized nano-ZnO (n-ZnO) is used for the first time as a novel composite catalyst in one-step self-condensation of acetone (DMK) to methyl isobutyl ketone in the gas phase. The DMK self-condensation was performed under atmospheric pressure, in a tubular glass fixed-bed microreactor, under DMK and H | 08-18-2011 |
