Gas separation membrane with ladder-structured polysilsesquioxane and method for fabricating the same
US-9855532-B2 · Jan 2, 2018 · US
Gas-permeable membrane
US10751672B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10751672-B2 |
| Application number | US-201715646282-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2017 |
| Priority date | Jul 25, 2016 |
| Publication date | Aug 25, 2020 |
| Grant date | Aug 25, 2020 |
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- Title
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Abstract
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The present invention provides a gas-permeable membrane comprising a partial structure represented by formula (I) or formula (II), (wherein R 1 and R 2 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkenyloxy group having 2 to 6 carbon atoms, an aryl group or an aryloxy group, M 1 , M 2 and M 3 each independently represents a metal atom, m1 represents an integer, n1, n2 and n3 each independently represents an integer of 1 to 3, * represents a bonding hand), a composition for forming the gas-permeable membrane and a production process of the gas-permeable membrane.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of selectively separating carbon dioxide gas and/or hydrogen gas from a gas mixture, the method comprising: allowing a gas mixture comprising a plurality of gases including carbon dioxide gas and/or hydrogen gas to come into contact with a gas-permeable membrane comprising a partial structure represented by formula (I), and separating carbon dioxide gas which passed thorough the gas-permeable membrane: wherein in formula (I), R 1 and R 2 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkenyloxy group having 2 to 6 carbon atoms, an aryl group or an aryloxy group, M 1 and M 2 each independently represents zirconium, hafnium, aluminum, niobium or boron, m1 represents a positive integer, n1 and n2 each independently represents an integer of 1 to 3, * represents a bonding hand, and the bonding hands of M 1 and M 2 are bonded to oxygen atoms which are present in other partial structures represented by formula (I) and bonded to the silicon atoms, bonded to a hydroxyl group, or bonded to a metal atom not constituting the partial structure represented by general formula (I) through an oxygen atom. 2. The method according to claim 1 , wherein R 1 and R 2 each independently represents an alkyl group having 1 to 6 carbon atoms.
Assignees
Inventors
Classifications
- B01D53/228Primary
characterised by specific membranes · CPC title
- B01D71/44Primary
Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42 · CPC title
Polydimethylsiloxane · CPC title
Cross-linking · CPC title
Thermal after-treatment · CPC title
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- What does patent US10751672B2 cover?
- The present invention provides a gas-permeable membrane comprising a partial structure represented by formula (I) or formula (II), (wherein R 1 and R 2 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an alkenyloxy group having 2 to 6 carbon atoms, an aryl group or…
- Who is the assignee on this patent?
- Nanomembrane Technologies Inc, Tokyo Ohka Kogyo Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01D53/228. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 25 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).