Sheet manufacturing apparatus, sheet manufacturing method, resin powder, and sheet
US-10843373-B2 · Nov 24, 2020 · US
Binder, and apparatus and method for forming fiber-based item
US2022010081A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022010081-A1 |
| Application number | US-202117367692-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 6, 2021 |
| Priority date | Jul 7, 2020 |
| Publication date | Jan 13, 2022 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A binder that is used for forming fiber-based items and that binds fibers contains a polyester and an aggregation inhibitor. The polyester contains a structural unit derived from polyethylene terephthalate, a structural unit derived from at least one polyvalent carboxylic acid, and a structural unit derived from at least one polyhydric alcohol including trimethylolpropane. The binder exhibits a viscosity coefficient higher than 3500 P at 150° C. in dynamic viscoelasticity measurement.
First claim
Opening claim text (preview).
What is claimed is: 1 . A binder that is used for forming fiber-based items and that binds fibers, the binder comprising: a polyester containing a structural unit derived from polyethylene terephthalate, a structural unit derived from at least one polyvalent carboxylic acid, and a structural unit derived from at least one polyhydric alcohol including trimethylolpropane; and an aggregation inhibitor, wherein the binder exhibits a viscosity coefficient higher than 3500 poises at 150° C. in dynamic viscoelasticity measurement. 2 . The binder according to claim 1 , wherein the binder has a glass transition temperature of 65° C. or more. 3 . The binder according to claim 1 , wherein the binder has a softening point of 150° C. or less. 4 . The binder according to claim 1 , wherein the binder has a volume average particle size of 12 Km or less. 5 . An apparatus for forming a fiber-based item, the apparatus comprising: the binder according to claim 1 . 6 . A method for forming a fiber-based item, comprising: mixing fibers and a binder containing a polyester and an aggregation inhibitor to prepare a mixture, the polyester containing a structural unit derived from polyethylene terephthalates, a structural unit derived from at least one polyvalent carboxylic acid, and a structural unit derived from at least one polyhydric alcohol including trimethylolpropane; and heating the mixture, wherein the binder exhibits a viscosity coefficient higher than 3500 poises at 150° C. in dynamic viscoelasticity measurement.
Assignees
Inventors
Classifications
Disintegrating fibre-containing articles to obtain fibres for re-use · CPC title
- D04H1/587Primary
characterised by the bonding agents used · CPC title
with vegetable or animal fibrous material · CPC title
- C08J5/04Primary
Reinforcing macromolecular compounds with loose or coherent fibrous material · CPC title
Lignocellulosic material, e.g. wood, straw or bagasse {(manufacture of articles made from lignocellulosic material by dry processes B27N)} · CPC title
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- What does patent US2022010081A1 cover?
- A binder that is used for forming fiber-based items and that binds fibers contains a polyester and an aggregation inhibitor. The polyester contains a structural unit derived from polyethylene terephthalate, a structural unit derived from at least one polyvalent carboxylic acid, and a structural unit derived from at least one polyhydric alcohol including trimethylolpropane. The binder exhibits a…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification D04H1/587. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Thu Jan 13 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).