Patent US5789326A successfully refreshed from Google Patents.
US5789326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particle binders
Assignee: Weyerhaeuser NR Co
•
Filing: 1996-11-19
•
Granted: 1998-08-04
•
Expires: 2016-11-19
Abstract
Abstract A binder is applied to fibers to bind particles to the fibers. The fibers have hydrogen bonding functional groups. The particles have functional groups capable of forming a hydrogen bond or a coordinate covalent bond. The binder comprises binder molecules, the binder molecules having at least one functional group that is capable of forming a hydrogen bond or a coordinate covalent bond with the particles, and at least one functional group that is capable of forming a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.
Inventors
- 👤 Michael R. Hansen
- 👤 Richard H. Young, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:34
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/16; D; D21; D21H; D21H11/00; D21H11/16; A; A61; A61F; A61F13/00; A61F13/02; A61F13/0203; A61F13/0206; A61F13/0209; A61F13/15; A61F13/53; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/60; B27; B27N; B27N3/00; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/587; D04H1/64; D06; D06M; D06M13/00; D06M13/10; D06M13/184; D06M13/244; D06M13/248; D06M13/256; D06M13/282; D06M13/285; D06M13/288; D06M13/292; D06M13/322; D06M13/325; D06M13/342; D06M23/00; D06M23/08; A61F13/51; A61F13/511; A61F13/531; A61F13/532; A61F13/533; A61F2013/00089; A61F2013/00246; A61F2013/00251; A61F2013/00361; A61F2013/00365; A61F2013/00463; A61F2013/00472; A61F2013/00727; A61F2013/00731; A61F2013/00748; A61F2013/00855; A61F2013/00859; A61F2013/00902; A61F2013/0091; A61F2013/00927; A61F13/15203; A61F2013/15284; A61F2013/15422; A61F13/15577; A61F2013/15821; A61F2013/15934; A61F2013/15951; A61F2013/51002; A61F2013/51038; A61F2013/5104; A61F2013/51078; A61F2013/530007; A61F2013/530131; A61F2013/530182; A61F2013/530189; A61F2013/530437; A61F2013/530445; A61F2013/530481; A61F2013/530489; A61F2013/530496; A61F2013/53051; A61F2013/530525; A61F2013/530547; A61F2013/530554; A61F2013/530569; A61F2013/530583; A61F2013/530613; D06M2200/00; D06M2400/00; D06M2400/01; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2964; Y10T428/2965; Y10T428/2982; Y10T428/2991; Y10T428/2998; Y10T428/31504; Y10T428/31536; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2049; Y10T442/209; Y10T442/60; Y10T442/699
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
139 words
A fibrous product comprising: a wet-laid web of fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the web, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional group selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 2
Dependent Claim
139 words
A fibrous product comprising: a wet-laid web of fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the web, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional group selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 3
Dependent Claim
41 words
The fibrous product of claim 1, wherein the binder functional groups are selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, an amide, an amino, and combinations thereof.
Claim 4
Dependent Claim
24 words
The fibrous product of claim 1, wherein the non-polymeric binder is selected from the group consisting of glycerin, sorbitol, propylene glycol, and carboxylic acids.
Claim 5
Dependent Claim
23 words
The fibrous product of claim 1, wherein the non-polymeric binder is selected from the group consisting of sorbitol, propylene glycol, and carboxylic acids.
Claim 6
Dependent Claim
35 words
The fibrous product of claim 1, wherein the binder functional groups are selected from the group consisting of a sulfonic acid, a sulfonate, a phosphoric acid, a phosphate, an amide, an amino, and combinations thereof.
Claim 7
Dependent Claim
30 words
The fibrous product of claim 1, wherein the non-polymeric binder is present in an amount from about 1 to about 40% based on the weight of the fiber and binder.
Claim 8
Dependent Claim
12 words
The fibrous product of claim 1, wherein the fibers comprise wood pulp.
Claim 9
Dependent Claim
13 words
The fibrous product of claim 1, wherein the fibers comprise high bulk fibers.
Claim 10
Dependent Claim
144 words
A fibrous product comprising: an air laid mass of high bulk fibers, the fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the mass, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional groups selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 11
Dependent Claim
144 words
A fibrous product comprising: an air laid mass of high bulk fibers, the fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the mass, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional groups selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 12
Dependent Claim
41 words
The fibrous product of claim 9, wherein the binder functional groups are selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, an amide, an amino, and combinations thereof.
Claim 13
Dependent Claim
24 words
The fibrous product of claim 9, wherein the non-polymeric binder is selected from the group consisting of glycerin, sorbitol, propylene glycol, and carboxylic acids.
Claim 14
Dependent Claim
23 words
The fibrous product of claim 9, wherein the non-polymeric binder is selected from the group consisting of sorbitol, propylene glycol, and carboxylic acids.
Claim 15
Dependent Claim
35 words
The fibrous product of claim 9, wherein the binder functional groups are selected from the group consisting of a sulfonic acid, a sulfonate, a phosphoric acid, a phosphate, an amide, an amine, and combinations thereof.
Claim 16
Dependent Claim
30 words
The fibrous product of claim 9, wherein the non-polymeric binder is present in an amount from about 1 to about 40% based on the weight of the fiber and binder.
Claim 17
Dependent Claim
12 words
The fibrous product of claim 9, wherein the fibers comprise wood pulp.
Claim 18
Dependent Claim
143 words
A fibrous product comprising: a wet-laid web of high bulk fibers, the fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the web, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional groups selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 19
Dependent Claim
143 words
A fibrous product comprising: a wet-laid web of high bulk fibers, the fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the web, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional groups selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 20
Dependent Claim
41 words
The fibrous product of claim 16, wherein the binder functional groups are selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, an amide, an amino, and combinations thereof.
Claim 21
Dependent Claim
24 words
The fibrous product of claim 16, wherein the non-polymeric binder is selected from the group consisting of glycerin, sorbitol, propylene glycol, and carboxylic acids.
Claim 22
Dependent Claim
23 words
The fibrous product of claim 16, wherein the non-polymeric binder is selected from the group consisting of sorbitol, propylene glycol, and carboxylic acids.
Claim 23
Dependent Claim
35 words
The fibrous product of claim 16, wherein the binder functional groups are selected from the group consisting of a sulfonic acid, a sulfonate, a phosphoric acid, a phosphate, an amide, an amino, and combinations thereof.
Claim 24
Dependent Claim
30 words
The fibrous product of claim 16, wherein the non-polymeric binder is present in an amount from about 1 to about 40% based on the weight of the fiber and binder.
Claim 25
Dependent Claim
140 words
A fibrous product comprising: an air laid mass of fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the mass, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional group selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 26
Dependent Claim
140 words
A fibrous product comprising: an air laid mass of fibers having hydrogen bonding functionality; and a non-polymeric binder comprising binder molecules within the mass, the binder molecules having at least one functional group capable of forming a hydrogen bond or a coordinate covalent bond with particles having a hydrogen bonding or a coordinate covalent bond forming functionality, and at least one functional group capable of forming a hydrogen bond with the fibers, the binder functional group selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, a hydroxyl, an amide, an amino, and combinations thereof, the fibers and binder being in a form shippable for processing to form hydrogen or coordinate covalent bonds between the binder and a particle having hydrogen bond or coordinate covalent bond forming functionality.
Claim 27
Dependent Claim
41 words
The fibrous product of claim 22, wherein the binder functional groups are selected from the group consisting of a carboxyl, a carboxylate, a carbonyl, a sulfonic acid, a sulfonate, a phosphate, a phosphoric acid, an amide, an amino, and combinations thereof.
Claim 28
Dependent Claim
24 words
The fibrous product of claim 22, wherein the non-polymeric binder is selected from the group consisting of glycerin, sorbitol, propylene glycol, and carboxylic acids.
Claim 29
Dependent Claim
23 words
The fibrous product of claim 22, wherein the non-polymeric binder is selected from the group consisting of sorbitol, propylene glycol, and carboxylic acids.
Claim 30
Dependent Claim
35 words
The fibrous product of claim 22, wherein the binder functional groups are selected from the group consisting of a sulfonic acid, a sulfonate, a phosphoric acid, a phosphate, an amide, an amino, and combinations thereof.
Claim 31
Dependent Claim
30 words
The fibrous product of claim 22, wherein the non-polymeric binder is present in an amount from about 1 to about 40% based on the weight of the fiber and binder.
Claim 32
Dependent Claim
12 words
The fibrous product of claim 22, wherein the fibers comprise wood pulp.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-03 | 2002-02-02 | 2002-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-03 | 2006-02-02 | 2006-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-03 | 2010-02-02 | 2010-08-04 | $7700.00 | Window Closed / Lapsed |