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Sulfone-containing polythioethers, compositions thereof, and methods of synthesis
US9062139B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9062139-B2 |
| Application number | US-201313833827-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2013 |
| Priority date | Mar 15, 2013 |
| Publication date | Jun 23, 2015 |
| Grant date | Jun 23, 2015 |
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Abstract
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Sulfone-containing polythioethers, compositions containing sulfone-containing polythioethers, methods of synthesizing sulfone-containing polythioethers and the use of sulfone-containing polythioethers in aerospace sealant applications are disclosed. The sulfone-containing polythioethers have sulfone groups incorporated into the backbone of the polythioether. Cured sealant compositions comprising the sulfone-containing polythioethers exhibit enhanced thermal resistance.
First claim
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What is claimed is: 1. A sulfone-containing polythioether comprising a moiety of Formula (1): -A-CH 2 —CH 2 —S(O) 2 —CH 2 —CH 2 -A- (1) wherein each A is independently a moiety of Formula (2): —S—R 1 —[—S—(CH 2 ) p —O—(R 2 —O) m —(CH 2 ) 2 —S—R 1 —] n —S— (2) wherein: each R 1 independently comprises C 2-10 alkanediyl, C 6-8 cycloalkanediyl, C 6-10 alkanecycloalkanediyl, C 5-8 heterocycloalkanediyl, or -[(—CHR 3 —) s —X—] q —(—CHR 3 —) r —, wherein: s…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C09D181/02Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9062139B2 cover?
- Sulfone-containing polythioethers, compositions containing sulfone-containing polythioethers, methods of synthesizing sulfone-containing polythioethers and the use of sulfone-containing polythioethers in aerospace sealant applications are disclosed. The sulfone-containing polythioethers have sulfone groups incorporated into the backbone of the polythioether. Cured sealant compositions comprisin…
- Who is the assignee on this patent?
- Prc Desoto Int Inc
- What technology area does this patent fall under?
- Primary CPC classification C09D181/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 23 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).