Binder composition and method comprising microfibrillated cellulose and recycled cellulosic materials
US-2021131039-A1 · May 6, 2021 · US
Compositions and methods for providing increased strength in ceiling, flooring, and building products
US11512020B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11512020-B2 |
| Application number | US-202016855370-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 22, 2020 |
| Priority date | Apr 4, 2016 |
| Publication date | Nov 29, 2022 |
| Grant date | Nov 29, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A composition for addition to a ceiling tile, flooring product, or other construction product may include microfibrillated cellulose and optionally an inorganic particulate material. The ceiling tile, flooring product, or other construction product may further include perlite, mineral wool, wood pulp, starch and other additives, where the wood pulp and other inorganic particulate materials are bonded to the microfibrillated cellulose. Methods of manufacturing the compound are also disclosed.
First claim
Opening claim text (preview).
What is claimed is: 1. A construction product comprising from at least about 0.1% and up to about 5% by weight microfibrillated cellulose based on the total dry weight of the construction product, wherein the microfibrillated cellulose has a d 50 of about 5 μm to about 500 μm and a fibre steepness of from 20 to 50, wherein the construction product is a fiberboard, gypsum board, plasterboard, insulation core of structural insulated panels or sound proofing; and wherein the construction product excludes wood pulp and wood particles. 2. He construction product according to claim 1 , Wherein the construction product further comprises up to 35% by weight wood particles, based on the total dry weight of the construction product is a fiberboard. 3. The construction product according to claim 2 , wherein the microfibrillated cellulose is obtained from a chemical, mechanical, chemithermomechanical, recycled pulp or a papermill broke, or a papermill waste stream, or waste from a papermill. 4. The construction product according to claim 1 , wherein the construction product further comprises gypsum. 5. The construction product according to claim 4 , wherein the microfibrillated cellulose is obtained from a chemical, mechanical, chemithermomechanical, recycled pulp or a papermill broke, or a papermill waste stream, or waste from a papermill. 6. The construction product according to claim 1 , wherein the construction product is a plasterboard. 7. The construction product according to claim 6 , wherein the microfibrillated cellulose is obtained from a chemical, mechanical, chemithermomechanical, recycled pulp or a papermill broke, or a papermill waste stream, or waste from a papermill. 8. The construction product according to claim 1 , wherein the microfibrillated cellulose is obtained from a chemical, mechanical, chemithermomechanical, recycled pulp or a papermill broke, or a papermill waste stream, or waste from a papermill.
Assignees
Inventors
Classifications
- C04B26/285Primary
Cellulose or derivatives thereof (C04B26/24 takes precedence) · CPC title
Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof (treating slag with gases or gas generating material C04B5/06 {; expanded graphite C04B35/536}) · CPC title
Polysaccharides or derivatives thereof · CPC title
Macromolecular compounds · CPC title
siliceous, e.g. clays · CPC title
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Frequently asked questions
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- What does patent US11512020B2 cover?
- A composition for addition to a ceiling tile, flooring product, or other construction product may include microfibrillated cellulose and optionally an inorganic particulate material. The ceiling tile, flooring product, or other construction product may further include perlite, mineral wool, wood pulp, starch and other additives, where the wood pulp and other inorganic particulate materials are …
- Who is the assignee on this patent?
- Fiberlean Tech Ltd
- What technology area does this patent fall under?
- Primary CPC classification C04B26/285. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 29 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).