US 7,744,818 B2Granted

Stationary phase materials for micro gas analyzer

AssigneeHoneywell International Inc.

InventorsNancy E. Iwamoto, Teresa A. Ramos, Robert R. Roth, Ulrich Bonne

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Abstract

Selecting a stationary phase for a fluid analyzer using certain criteria to determine an appropriate material for use in, for instance, a micro fluid analyzer. High absorption of an analyte or sample, low water sorbency and high porosity or permeability of the material may be sought. A selected material may incorporate a toughening agent using a neutral leaving group. A selected material may have a capping agent to promote hydrophobicity. A selected material may be a hydrophobic polymer. The selection of a stationary phase may involve molecular modeling.

Claims5

Dependent claims

A method for making a stationary phase for a fluid analyzer, comprising:

selecting a material, and wherein selecting a material includes utilizing computer based molecular modeling and qualitatively comparing interactions from a molecular scale;
and
applying the material on a support member;
wherein the material comprises a hydrophobic polymer and a porous dielectric having a toughening agent that uses a neutral leaving group and has:
an adsorption energy that monotonically increases with molecular weight or boiling point;
and
a potential activity to resist water interference during adsorption;
and
wherein the polymer comprises:
polynorbornene;
polytetrafluoroethylene;
fluorinated polyolefins;
and/or novolac resins.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/276,399Filed 27 Feb 2006 · us provisional application
Priority: 28 Feb 2005
Published: US 2006/0228261 A112 Oct 2006
Granted: 29 Jun 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B01J 20/285
Porous sorbents: based on polymers
B01J 20/28
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof:…
B01J 20/28007
Sorbent size or size distribution, e.g. particle size: with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes,…
B01J 20/28095
Characterised by their surface properties or porosity: shape or type of pores, voids, channels, ducts

Family

Application60/657,557Us provisional application · filed 28 Feb 2005
US 2006/0228261 A1Pre-grant publication · published 12 Oct 2006
US 7,744,818 B2This patent

From the US filing history. Foreign family members aren’t listed.

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