Method of making plastic article
US-2017218132-A1 · Aug 3, 2017 · US
Polymer composite material for 1H dynamic nuclear polarization experiments and method for producing the same, and polymer composite material for 1H dynamic nuclear polarization contrast variation neutron scattering experiments
US10712413B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10712413-B2 |
| Application number | US-201715729255-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 10, 2017 |
| Priority date | Oct 24, 2016 |
| Publication date | Jul 14, 2020 |
| Grant date | Jul 14, 2020 |
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Abstract
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Provided is a polymer composite material which has a high proton spin polarization even though it is a polymer composite material containing carbon black. The present invention relates to a polymer composite material for 1 H dynamic nuclear polarization experiments, containing carbon black, having a thickness of 0.8 mm or less, and being doped with a paramagnetic radical compound.
First claim
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The invention claimed is: 1. A polymer composite material for 1 H dynamic nuclear polarization experiments, comprising carbon black, wherein the polymer composite material has a thickness of 0.5 mm or less, and is doped with a paramagnetic radical compound. 2. The polymer composite material for 1 H dynamic nuclear polarization experiments according to claim 1 , wherein a local concentration of the paramagnetic radical compound is substantially not position-dependent. 3. The polymer composite material for 1 H dynamic nuclear polarization experiments according to claim 1 , comprising substantially no molecular oxygen. 4. The polymer composite material for 1 H dynamic nuclear polarization experiments according to claim 1 , wherein a local concentration of the paramagnetic radical compound, which is defined by the following expression, is 15 to 35 mM: (Local concentration of paramagnetic radical compound)=(Concentration of paramagnetic radical compound)/(1−(Volume fraction of filler)). 5. The polymer composite material for 1 H dynamic nuclear polarization experiments according to claim 1 , having a proton spin polarization, which is defined by the following expression, of 25% or more: (Proton spin polarization)=(Number of up-spins Number of down-spins)/(Number of up-spins+Number of down-spins). 6. The polymer composite material for 1 H dynamic nuclear polarization experiments according to claim 1 , wherein the polymer composite material is prepared by a production method comprising the step of diffusing a paramagnetic radical compound into a polymer composite material in the presence of an inert gas, a polymer composite material under vacuum, or a polymer composite material immersed in a solvent. 7. A method for producing the polymer composite material for 1 H dynamic nuclear polarization experiments according to claim 1 , the method comprising the step of diffusing a paramagnetic radical compound into a polymer composite material in the presence of an inert gas, a polymer composite material under vacuum, or a polymer composite material immersed in a solvent.
Assignees
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Classifications
- C08J7/02Primary
with solvents, e.g. swelling agents · CPC title
by using electron paramagnetic resonance (G01N24/12 takes precedence) · CPC title
Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons · CPC title
Copolymers with styrene · CPC title
Piperidines · CPC title
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- What does patent US10712413B2 cover?
- Provided is a polymer composite material which has a high proton spin polarization even though it is a polymer composite material containing carbon black. The present invention relates to a polymer composite material for 1 H dynamic nuclear polarization experiments, containing carbon black, having a thickness of 0.8 mm or less, and being doped with a paramagnetic radical compound.
- Who is the assignee on this patent?
- Sumitomo Rubber Ind
- What technology area does this patent fall under?
- Primary CPC classification C08J7/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 14 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).