US Patent 7767192 - Molecular sieve nanocrystals

http://ip.com/patent/US7767192

Purification of petroleum products often require sieves which filter gases on a molecular level. This patent from ExxonMobile teaches a nanocrystalline sieve for improved molecular separation. Claim 1 reads:

1. A molecular sieve comprising single crystals or agglomerates, the crystals or agglomerates having an average largest dimension of 100 nm or less which molecular sieve has a crystal or agglomerate size distribution such that the variance in the longest dimension is less than 15% of the average longest dimension, and is capable of forming a stable colloidal suspension.

US Patent 7514491 - Polymer/Inorganic clay nanocomposite fabrication

http://www.freepatentsonline.com/7514491.html

This patent from ExxonMobile teaches the manufacture of a clay nanocomposite for enhancing the air barrier in tires. Claim 1 reads:

1. A process to produce a nanocomposite comprising the steps of:

(a) mixing an aqueous slurry of clay with a solution of polymer in an organic solvent to form an emulsion comprising a polymer-clay nanocomposite;

(b) recovering the nanocomposite from the emulsion.