Process for the preparation of mofs-porous polymeric membrane composites
US-2015367294-A1 · Dec 24, 2015 · US
Porous silicone body and method for producing porous silicone body
US2017298204A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017298204-A1 |
| Application number | US-201515513020-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 25, 2015 |
| Priority date | Sep 29, 2014 |
| Publication date | Oct 19, 2017 |
| Grant date | — |
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Abstract
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The present invention relates to a porous silicone body having communicating pores and a three-dimensional network silicone skeleton that forms the pores, wherein the silicone skeleton is formed by polymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, and the proportion of unreacted parts in the silicone skeleton is 10 mol % or less. The porous silicone body of the present invention has high flexibility and high heat resistance, and further has excellent recoverability of heat-resistant cushioning properties.
First claim
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1 . A porous silicone body having communicating pores and a three-dimensional network silicone skeleton that forms the pores, wherein the silicone skeleton is formed by polymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, and the proportion of unreacted parts in the silicone skeleton is 10 mol % or less. 2 . The porous silicon body according to claim 1 , having 50% compression set at a test temperature of 150° C. of 5% or less. 3 . The porous silicon body according to claim 1 , having 50% compression set at a test temperature of 250° C. of 10% or less. 4 . A method for producing the porous silicone body according to claim 1 , comprising a step of copolymerizing a bifunctional alkoxysilane and a trifunctional alkoxysilane by a sol-gel reaction involving phase separation to form a porous silicone body having communicating pores and a three-dimensional network silicone skeleton that forms the pores, and a step of heat-treating the porous silicone body at a temperature lower than the thermal decomposition initiation temperature thereof. 5 . The method according to claim 4 , wherein the heat treatment is conducted at 100 to 320° C. 6 . The method according to claim 5 , wherein the heat treatment is conducted at 150 to 300° C. 7 . The method according to claim 4 , wherein the heat treatment is conducted for 8 to 120 hours.
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Classifications
Xerogel, i.e. an air dried gel · CPC title
Polysiloxanes · CPC title
- C08J9/36Primary
After-treatment (C08J9/22 takes precedence) · CPC title
the non-solvent being organic · CPC title
- C08J9/28Primary
by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum · CPC title
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- What does patent US2017298204A1 cover?
- The present invention relates to a porous silicone body having communicating pores and a three-dimensional network silicone skeleton that forms the pores, wherein the silicone skeleton is formed by polymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, and the proportion of unreacted parts in the silicone skeleton is 10 mol % or less. The porous silicone body of the pre…
- Who is the assignee on this patent?
- Nitto Denko Corp
- What technology area does this patent fall under?
- Primary CPC classification C08J9/36. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Oct 19 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).