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:
Dec. 10, 2013
Filed:
Mar. 07, 2013
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Mamdouh Ahmad Al-Harthi, Dhahran, SA;
Omer Yahya Bakather, Dhahran, SA;
Sadhan Kumar De, Dhahran, SA;
Reyad Awwad Khalaf Shawabkeh, Dhahran, SA;
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Abstract
The ethylene/propylene copolymer nanocomposite is a copolymer prepared by inclusion of a filler of nanoparticles of titania doped with iron that permits control over, and variation of, the overall polymeric properties. Through the addition of the TiO/Fe nanofiller, the concentration of polypropylene in the copolymer is increased and the overall crystallinity is decreased. In order to make the copolymer, a TiO/Fe titania-iron nanofiller is first mixed with a polymerization catalyst (a vanadium (III) complex bearing bidentate salicylaldiminato ligands) in a reactor. The reactor is then charged with solvent (e.g., toluene) and heated to a temperature suitable for polymerization, e.g., about 30° C. Following heating, a mixture of ethylene and propylene gases (in selected molar ratios) is fed into the reactor at a fixed pressure, and methyl aluminum dichloride co-catalyst (MADC) is added to initiate polymerization. Polymerization is quenched to yield the ethylene/propylene copolymer nanocomposite, which is then washed and dried.