Complexes of magnesium carbonate microparticles and fibers as well as processes for preparing them
US-2019047872-A1 · Feb 14, 2019 · US
Complexes of cellulose fibers and inorganic particles
US11339529B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11339529-B2 |
| Application number | US-201615764136-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 21, 2016 |
| Priority date | Sep 30, 2015 |
| Publication date | May 24, 2022 |
| Grant date | May 24, 2022 |
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.
The present invention aims to provide cellulose fibers covered by inorganic particles on the fiber surface. According to the present invention, complexes of a cellulose fiber and inorganic particles wherein 15% or more of the surface of the cellulose fiber is covered by the inorganic particles can be obtained.
First claim
Opening claim text (preview).
The invention claimed is: 1. A complex of a cellulose fiber and inorganic particles, wherein 40% or more of the surface of the cellulose fiber is covered by the inorganic particles, wherein the complex does not include a binder, wherein the inorganic particles are at least partially a metal salt of silicic acid, barium or aluminum or metal particles containing titanium, copper or zinc, and wherein the inorganic particles of the complex are synthesized in a solution in the presence of the fiber. 2. The complex of claim 1 , wherein the inorganic particles have an average primary particle size of 1 μm or less. 3. The complex of claim 1 , wherein the inorganic particles have an average primary particle size of 200 nm or less. 4. The complex of claim 1 , wherein the inorganic particles have an average primary particle size of 100 nm or less. 5. The complex of claim 1 , wherein the weight ratio between the cellulose fiber and the inorganic particles is 20/80 to 80/20. 6. The complex of claim 1 , wherein the cellulose fiber is a wood-derived cellulose fiber. 7. The complex of claim 1 , wherein the cellulose fiber is a wood-derived pulp fiber. 8. The complex of claim 1 , wherein the cellulose fiber is a chemical pulp. 9. The complex of claim 1 , wherein the cellulose fiber is a pulverized cellulose. 10. The complex of claim 1 , wherein the inorganic particles are barium sulfate. 11. A radiation shielding material comprising the complex of claim 10 . 12. A process for preparing the complex of claim 1 , comprising synthesizing inorganic particles in a solution in the presence of a fiber. 13. The complex of claim 1 , wherein the complex consists essentially of the cellulose fiber and the inorganic particles. 14. The complex of claim 1 , wherein the complex consists of the cellulose fiber and the inorganic particles.
Assignees
Inventors
Classifications
- C08K3/30Primary
Sulfur-, selenium- or tellurium-containing compounds · CPC title
Use of inorganic substances as compounding ingredients · CPC title
Cellulose; Modified cellulose · CPC title
Salts of phosphoric acids · CPC title
of calcium, strontium or barium · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11339529B2 cover?
- The present invention aims to provide cellulose fibers covered by inorganic particles on the fiber surface. According to the present invention, complexes of a cellulose fiber and inorganic particles wherein 15% or more of the surface of the cellulose fiber is covered by the inorganic particles can be obtained.
- Who is the assignee on this patent?
- Jujo Paper Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08K3/30. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 24 2022 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).