Hydrophobic capsule

US11064730B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11064730-B2
Application numberUS-201716307867-A
CountryUS
Kind codeB2
Filing dateJun 28, 2017
Priority dateJul 11, 2016
Publication dateJul 20, 2021
Grant dateJul 20, 2021

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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 capsule (120) for use in a smoking article includes a liquid sensory enhancing material; and a shell surrounding the liquid sensory enhancing material. The shell has an outer surface rendered hydrophobic by hydrophobic groups covalently bond to the outer surface of the shell. The shell may be rendered hydrophobic by reacting hydroxyl groups at outer surface of the shell with fatty acid halides to covalently attach fatty acid moieties to the surface of the capsule.

First claim

Opening claim text (preview).

The invention claimed is: 1. A smoking article comprising a capsule and an aerosol forming substrate downstream of the capsule, the capsule comprising: a liquid sensory enhancing material; and a shell surrounding the liquid sensory enhancing material, the shell having an outer surface rendered hydrophobic by hydrophobic groups covalently bond to the outer surface of the shell. 2. A smoking article according to claim 1 , wherein the smoking article comprises a mouthpiece and wherein the mouthpiece comprises the capsule. 3. A smoking article according to claim 2 , wherein the mouthpiece comprises filter material, and wherein the capsule is embedded in the filter material. 4. A smoking article according to claim 1 , wherein the article is configured to heat but not combust the aerosol forming substrate.

Assignees

Inventors

Classifications

  • of organic materials as additive (of ion exchange materials A24D3/12) · CPC title

  • the additive being in the form of capsules, beads or the like · CPC title

  • Devices using solid inhalable precursors · CPC title

  • Cigarettes specially adapted for simulated smoking devices · CPC title

  • with smoke filters · CPC title

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Frequently asked questions

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What does patent US11064730B2 cover?
A capsule (120) for use in a smoking article includes a liquid sensory enhancing material; and a shell surrounding the liquid sensory enhancing material. The shell has an outer surface rendered hydrophobic by hydrophobic groups covalently bond to the outer surface of the shell. The shell may be rendered hydrophobic by reacting hydroxyl groups at outer surface of the shell with fatty acid halide…
Who is the assignee on this patent?
Philip Morris Products Sa
What technology area does this patent fall under?
Primary CPC classification A24D3/061. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Jul 20 2021 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).