Thermoplastic resin composition and molded article
US-12098241-B2 · Sep 24, 2024 · US
Polymeric particles
US8993112B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993112-B2 |
| Application number | US-62933005-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 2, 2005 |
| Priority date | Jun 15, 2004 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed throughout the matrix, in which the secondary particles comprise a hydrophobic polymer that has been formed from an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C. and optionally other monomers, which hydrophobic polymer is different from the polymeric matrix. Also claimed is a process for preparing particles. The particles have improved shatter resistance. Preferably the polymeric particles comprise an active ingredient, especially a colorant. Such particles combine improved shatter resistance with the ability to retain the active ingredient. The particles of the invention can be used in a variety of industrial applications, for instance in the manufacture of inks, paper and cosmetics.
First claim
Opening claim text (preview).
The invention claimed is: 1. Polymeric particles comprising a polymeric matrix, an active ingredient and secondary particles, which active ingredient and secondary particles are distributed throughout the matrix, which matrix polymer is a copolymer consisting of (meth)acrylic acid or salt units thereof and styrene units, wherein the secondary particles consist of a hydrophobic polymer consisting of methyl methacrylate units and 70 wt. % styrene units and, the secondary particl…
Assignees
Inventors
Classifications
Chemistry & Metallurgy · mapped topic
Human Necessities · mapped topic
- C08L25/14Primary
Chemistry & Metallurgy · mapped topic
Human Necessities · mapped topic
Chemistry & Metallurgy · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8993112B2 cover?
- Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed thro…
- Who is the assignee on this patent?
- Elder Stewart Todd, Andrianov Christina Ligia, Mistry Kishor Kumar, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C08L25/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 31 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).