Pharmaceutical container, method for manufacturing pharmaceutical container, and coating agent

US12478554B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12478554-B2
Application numberUS-202117908993-A
CountryUS
Kind codeB2
Filing dateMar 8, 2021
Priority dateMar 9, 2020
Publication dateNov 25, 2025
Grant dateNov 25, 2025

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A pharmaceutical container of the present invention is a pharmaceutical container including at least a container and a coating layer, and is characterized that the coating layer is coated on at least an inner surface of the container and the coating layer contains a silicone-based resin.

First claim

Opening claim text (preview).

The invention claimed is: 1 . A pharmaceutical container comprising at least a container and a coating layer, wherein the coating layer is formed on at least an inner surface of the container, and the coating layer contains a silicone-based resin, wherein the silicone-based resin contains dimethylpolysiloxane, phenylpolysiloxane, and methylpolysiloxane, and dimethylpolysiloxane:phenylpolysiloxane:methylpolysiloxane=A:B:C are in a molar ratio, A is 0.1 to 4.0, B is 0.1 to 4.0, and C is 0.1 to 4.0. 2 . The pharmaceutical container according to claim 1 , wherein the coating layer is substantially free of a halogen component. 3 . The pharmaceutical container according to claim 1 , wherein the coating layer has a thickness of 10 to 2500 nm. 4 . The pharmaceutical container according to claim 1 , wherein the container is made of silicate glass, and the silicate glass contains, by mass, 65 to 85% of SiO 2 , 0 to 15% of Al 2 O 3 , 0 to 13% of B 2 O 3 , 0 to 5% of Li 2 O, 3 to 15% of Na 2 O, 0 to 5% of K 2 O, 0 to 5% of MgO, 0 to 15% of CaO, and 0 to 5% of BaO as a glass composition.

Assignees

Inventors

Classifications

  • Polysiloxanes · CPC title

  • Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes · CPC title

  • Siloxanes having aromatic substituents, e.g. phenyl side groups · CPC title

  • Polysiloxanes · CPC title

  • After-treatment · CPC title

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Frequently asked questions

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What does patent US12478554B2 cover?
A pharmaceutical container of the present invention is a pharmaceutical container including at least a container and a coating layer, and is characterized that the coating layer is coated on at least an inner surface of the container and the coating layer contains a silicone-based resin.
Who is the assignee on this patent?
Nippon Electric Glass Co
What technology area does this patent fall under?
Primary CPC classification C03C3/118. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Nov 25 2025 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).