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US-2018095427-A1 · Apr 5, 2018 · US
Phosphorescent elastomer master mixture and horological component comprising such a mixture
US2023279288A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023279288-A1 |
| Application number | US-202118015460-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 17, 2021 |
| Priority date | Jul 22, 2020 |
| Publication date | Sep 7, 2023 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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The present invention relates to a master mixture comprising:from 40 to 95% by weight of a photoluminescent pigment, said pigment having a particle size limited by sifting at 30 μm;5 to 60% by weight of a polymer in the form of an elastomer or an elastomer precursor chosen from fluorinated polymers from the FKM family, the polyurethane (TPU) family, Ethylene vinyl acetate (EVA) copolymers, silicones, ethylene propylene rubbers (EPR) and the thermoplastic derivatives (TPO) thereof and acrylic elastomers.
First claim
Opening claim text (preview).
1 . A polymeric composition comprising 50 to 80% by weight of a master mixture comprising: from 40 to 95% by weight of a photoluminescent pigment, said pigment having a particle size limited by sifting at 30 μm; 5 to 60% by weight of a polymer in the form of an elastomer or an elastomer precursor chosen from fluorinated polymers from the FKM family, silicones, ethylene propylene rubbers (EPR) and acrylic elastomers. 2 . The polymeric composition according to claim 1 wherein the master mixture comprises 0.2 to 2% wax and/or oil. 3 . The polymeric composition according to claim 1 wherein the master mixture comprises 0.1 to 2% chromophores and/or fluorochromes. 4 . The polymeric composition according to claim 1 wherein the polymer is an FKM. 5 . The polymeric composition according to claim 1 comprising no crosslinking agent. 6 . The polymeric composition according to claim 1 comprising at least 60% master mixture. 7 . The polymeric composition according to claim 1 comprising a crosslinking system comprising an organic peroxide and a crosslinking co-agent. 8 . A horological or jewellery component comprising a composition according to claim 1 . 9 . A method for manufacturing a photoluminescent horological component comprising the steps of: a. producing a master mixture comprising: from 40 to 95% by weight of a photoluminescent pigment, said pigment having a particle size limited by sifting at 30 μm; and 5 to 60% by weight of a polymer in the form of an elastomer or an elastomer precursor chosen from fluorinated polymers from the FKM family, silicones, ethylene propylene rubbers (EPR) and acrylic elastomers; b. mixing the master mixture in a polymer compatible with said master mixture to obtain a mixture according to claim 6 ; and c. shaping the composition obtained in b) to obtain a photoluminescent horological component.
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Classifications
containing fluorine atoms · CPC title
Elastomers · CPC title
containing inorganic luminescent materials · CPC title
- C09K11/02Primary
Use of particular materials as binders, particle coatings or suspension media therefor · CPC title
halogenated · CPC title
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- What does patent US2023279288A1 cover?
- The present invention relates to a master mixture comprising:from 40 to 95% by weight of a photoluminescent pigment, said pigment having a particle size limited by sifting at 30 μm;5 to 60% by weight of a polymer in the form of an elastomer or an elastomer precursor chosen from fluorinated polymers from the FKM family, the polyurethane (TPU) family, Ethylene vinyl acetate (EVA) copolymers, sili…
- Who is the assignee on this patent?
- Swatch Group Res & Dev Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09K11/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Sep 07 2023 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).