Patent · US Active

Selective gas transport films that contain brominated styrene-butadiene copolymers

US9126153B2 · kind B2 · utility

0Cited by

14References

14Claims

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Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Scott T. Matteucci · Midland, US
Mark W. Beach · Midland, US
Michal E. Matteucci · Midland, US
Shari L. Kram · Sanford, US
William G. Stobby · Midland, US
Ted A. Morgan · Midland, US
Inken Beulich · Laufenburg (Baden), DE

Key dates

Filing date	Jun 27, 2012
Grant date	Sep 8, 2015
Priority date	—
Expiry date	Jun 27, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/249953
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Brominated styrene-butadiene copolymers are useful gas transport films. The gas transport films are made by brominating a starting styrene-butadiene copolymer, and then forming the brominated styrene-butadiene copolymer into a film. The film may contain a blend of the brominated styrene-butadiene copolymer with one or more other polymers. The films have excellent selectivities between certain pairs of gasses, and exhibit high gas transport rates for various gasses such as carbon dioxide and water vapor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.