King Fahd University of Petroleum and Minerals

Halim Hamid Redhwi

Mohammad Nahid Siddiqui

Dimitris S Achilias

Syed Hussain

Shakeel Ahmed

Mohammad Ashraf Ali

Tomoyuki Inui

Takuma Kimura

Mohammad Abdullah Al-Saleh

Muhammad Younas

A method of making an antimicrobial poly(methyl methacrylate) (PMMA)/silver nanocomposite comprising PMMA and silver nanoparticles. The method includes reacting at least one silver salt with a methyl methacrylate (MMA) monomer in at least one organic solvent free of water and in the presence of at least one organic free radical initiator to polymerize the MMA monomer to form the PMMA by free radical polymerization while reducing in-situ the silver salt to form the silver nanoparticles, wherein the silver nanoparticles have an average particle size of 35-60 nm, and wherein the PMMA forms a matrix that encloses the silver nanoparticles.

Method for inhibiting growth of bacteria with a polymer/silver nanocomposite

A high density polyethylene-asphaltene composite that includes 85 to 98 wt. % of a high density polyethylene (HDPE) polymer and 10 wt. % or less of a filler, wherein the filler is an asphaltene, the asphaltene is the only filler present, and the asphaltene is uniformly dispersed within a matrix of the HDPE polymer. The thermal stability of the high density polyethylene-asphaltene composite is improved compared to the high density polyethylene polymer.

Thermally stable high density polyethylene-asphaltene composite

Method of making and using a methyl methacrylate/silver dispersion

In situ silver salt reduction and methacrylate polymerization

Methods of making antimicrobial poly(methyl methacrylate) /silver nanocomposites and inhibiting bacterial growth with poly(methyl methacrylate) /silver nanocomposites

A low-density polyethylene nanocomposite comprising 5 weight percent or more of at least one nanoscale filler selected from the group consisting of montmorillonite clay, silica and zinc oxide. Changes in weatherability of the three low-density polyethylene nanocomposites based on the nanoscale fillers are determined. A surface area of the nanoscale filler in the nanocomposites is from 10 m/g to 50 m/g.

Smectite clay low-density polyethylene nanocomposite

Weatherability and durability of low-density polyethylene nanocomposites with clay, silica and zinc oxide

The catalyst exhibiting hydrogen spillover effect relates to the composition of a catalyst exhibiting hydrogen spillover effect and to a process for preparing the catalyst. The catalyst has a reduced transition base metal of Group VIB or Group VIIIB, such as cobalt, nickel, molybdenum or tungsten, supported on a high porous carrier, such as saponite, the base metal being ion-exchanged with at least one precious metal of Group VIIIB. The process includes the steps of loading the base metal onto the support, reducing the base metal, preferably with Hat 600&#xb0; C., and thereafter ion-exchanging the precious metal with the base metal. Preferred examples of the catalyst include a saponite support loaded with about 10-20 wt % cobalt and about 0.1-1 wt % precious metal. The catalyst is optimized for reactions that occur in commercial processes at about 360-400&#xb0; C., such as in hydrocracking.

Catalyst exhibiting hydrogen spillover effect

Growing community of inventors

Dhahran, Saudi Arabia

Halim Hamid Redhwi