Cellulosic superabsorbent polymer from post-consumer textile waste
US-2022081539-A1 · Mar 17, 2022 · US
Method for producing modified cellulose nanofibers
US2016137751A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016137751-A1 |
| Application number | US-201414899765-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 13, 2014 |
| Priority date | Sep 18, 2013 |
| Publication date | May 19, 2016 |
| Grant date | — |
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.
Provided are modified cellulose nanofibers that can be easily formed into a composite with a resin containing a solvent and a resin composition that contains the modified cellulose nanofibers. A method for producing modified cellulose nanofibers is characterized in that a step of obtaining modified cellulose by causing cellulose having hydroxyl groups to react with a resin having an intramolecular polybasic anhydride structure and a step of miniaturizing the modified cellulose are performed in the same step. In this method, the polybasic anhydride structure is a cyclic polybasic anhydride structure obtained by ring formation through dehydration condensation of carboxyl groups in the molecule.
First claim
Opening claim text (preview).
1 . A method for producing modified cellulose nanofibers, characterized in that a step of obtaining modified cellulose by causing cellulose having hydroxyl groups to react with a resin having an intramolecular polybasic anhydride structure and a step of miniaturizing the modified cellulose are performed in the same step, wherein the polybasic anhydride structure is a cyclic polybasic anhydride structure obtained by ring formation through dehydration condensation of carboxyl groups in the molecule. 2 . The method for producing modified cellulose nanofibers according to claim 1 , wherein the resin having an intramolecular polybasic anhydride structure is a vinyl resin. 3 . The method for producing modified cellulose nanofibers according to claim 1 , wherein the resin having an intramolecular polybasic anhydride structure has a weight-average molecular weight of 1000 or more and 6000 or less. 4 . The method for producing modified cellulose nanofibers according to claim 2 , wherein the resin having an intramolecular polybasic anhydride structure has a weight-average molecular weight of 1000 or more and 6000 or less.
Assignees
Inventors
Classifications
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 US2016137751A1 cover?
- Provided are modified cellulose nanofibers that can be easily formed into a composite with a resin containing a solvent and a resin composition that contains the modified cellulose nanofibers. A method for producing modified cellulose nanofibers is characterized in that a step of obtaining modified cellulose by causing cellulose having hydroxyl groups to react with a resin having an intramolecu…
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C08B3/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).