Core-shell microspheres

US9155707B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9155707-B2
Application numberUS-201214123935-A
CountryUS
Kind codeB2
Filing dateJun 8, 2012
Priority dateJun 9, 2011
Publication dateOct 13, 2015
Grant dateOct 13, 2015

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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.

The specification describes a substance comprising a plurality of microparticles. The microparticles comprise a core comprising a first polymer and a shell surrounding said core and comprising the first polymer and a second polymer, wherein the second polymer is less rapidly degradable than the first polymer. A process for making the microparticles and uses of the microparticles are also described.

First claim

Opening claim text (preview).

The invention claimed is: 1. A substance comprising a plurality of microparticles, said microparticles comprising: a core comprising a first polymer; and a shell surrounding said core and comprising the first polymer and a second polymer, said second polymer being less rapidly degradable than the first polymer, wherein the first polymer forms a plurality of continuous pathways through the shell. 2. The substance of claim 1 wherein the second polymer is l…

Assignees

Inventors

Classifications

  • C08J3/02Primary

    Chemistry & Metallurgy · mapped topic

  • Human Necessities · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • A61K9/48Primary

    Human Necessities · mapped topic

  • Chemistry & Metallurgy · mapped topic

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Frequently asked questions

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What does patent US9155707B2 cover?
The specification describes a substance comprising a plurality of microparticles. The microparticles comprise a core comprising a first polymer and a shell surrounding said core and comprising the first polymer and a second polymer, wherein the second polymer is less rapidly degradable than the first polymer. A process for making the microparticles and uses of the microparticles are also descri…
Who is the assignee on this patent?
Ying Jackie Y, Pek Shona, Pitukmanorom Pemakorn, and 2 more
What technology area does this patent fall under?
Primary CPC classification C08J3/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Oct 13 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).