Patents Filed

Title of Patent  Patent Description 
A Process to Produce Adipic Acid from g-valerolactone   A method to produce adipic acid from gamma-valerolactone (GLV) via a three-step process comprised of (a) reactive distillation of GVL to a mixture of pentenoic acid isomers in the presence of an acid catalyst, (b) carbonylation of the mixture of pentenoic acid isomers to adipic acid in the presence of a palladium catalyst, and (c) precipitation of adipic acid and recycling of the filtrate containing catalyst and unreacted pentenoic acid to step (b).
     
     

The SERS-BTEM Method

(Ref No: PCT/SG2011/000065)

  The present invention disclosure addresses the use of gold-alloy surface SERS devices in conjunction with BTEM to resolve the individual spectra of the components in a mixture.
     
     

A Process for Long-term CO2 Mineral Sequestration

(Ref No: 61/392,599)

  A novel process technology is invented for long term capture and sequestration of CO2 from flue gas emitted from power plants. A bipolar membrane electrodialysis (BMED) technology is applied, and by the aid of a process approach, to permanently capture CO2 with low energy consumption and produce mainly magnesium carbonate and sand, which can be used as building materials or landfill stuff for land reclamation.
     
     

High Char Forming Polymeric Fire Retardant

(Ref No: PCT/SG2010/000232)

  This invention relates to a fire retardant additive based on a high char forming polymer.  The high char forming polymer is derived from the poly(aralkyl) ketone or its derivatives reported in US7034187
     
     

A Method for Producing Ethanol via In-Situ Xylose Isomerization and Yeast Fermentation

(Ref No: 61/363,276)

Ethanol is produced via in-situ xylose isomerization and yeast fermentation using xylose isomerase engineered E. coli cells and ethanol hyper-producing yeast.
     
     

Development of Highly Active and Selective Catalysts in the Conversion of Mixtures of bio-alcohols to C3+ olefins

(Ref No: PCT/SG2010/000235)

  This invention relates to the novel process of converting mixtures of bio-ethanol and bio-butanol to light olefins (ethylene, proplyene and butylenes) with high propylene or C3+ olefins selectivity to C2 olefins, or parafins or aromatics over metal supported H-ZSM-5 catalysts.  More specifically, we report here that the complete conversion of bio ethanol and bio butanol with high selectivity of C3+ olefins, particularly, proplyene for about 20 h.  the present invention also relates to the utilization of mesopores in H-ZSM-5 catalyst and optimization of metal content required for the high C3+ olefins yield
     
     

A two-step process for the Separation and Removal of Sulfur from a Hydrocarbon Stream (Flagship)

(Ref No: 61/333,404)

  The current invention uses a two-step process to produce ultra low sulfur diesel (USLD) by selective adsorption and removal of oxidized sulfur-containing compounds from a hydrocarbon stream. Paraffins, naphthenes and aromatics (mono and di-aromatics) are recovered during the regeneration process used to regenerate the spent adsorbent, minimizing yield loss.  The key advantage of this technology is that USLD can be produced without using hydrogen, contributing to lower processing  costs
     
     

Thermoplastic elastomers containing dispersed hard polylactic acid sterocomplex domains in a soft continuous poly(alkyl acrylate) matrix

(Ref No: 61/324,112)

  This invention discloses elastomeric graft copolymers containing dispersed PLA stereocomplex domains in a soft poly(n-butyl-acrylate) matrix with service temperature higher than that of corresponding elastomers containing dispersed PLLA or PDLA only.