Patent US4291101A successfully refreshed from Google Patents.
US4291101A
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Wood fibrous material and a method for improving the qualities thereof
Assignee: NOF Corp
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Filing: 1979-08-06
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Granted: 1981-09-22
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Expires: 1999-08-06
Abstract
Abstract Wood fibrous materials which are impregnated with one or more compounds selected from a group consisting of polyoxyalkylene glycol monoacrylates and polyoxyalkylene glycol, monomethacrylates, followed by curing the impregnated impregnant, are splendid in the dimensional stability and become good in other properties thereof.
Inventors
- 👤 Yoshiharu Tanizaki
- 👤 Kenichiro Minagawa
- 👤 Shinichi Akimoto
- 👤 Kuninori Horioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:01
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/18; D21H17/19; B; B27; B27K; B27K3/00; B27K3/02; B27K3/15; C; C08; C08L; C08L97/00; C08L97/02; C08L33/00; C08L33/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
42 words
Wood fiber material impregnated with a polymer made of one or more monomers having the formula ##STR10## wherein R is hydrogen or methyl, m is an integer of from 2 to 4 and n is an integer of from 2 to 20.
Claim 2
Dependent Claim
42 words
Wood fiber material impregnated with a polymer made of one or more monomers having the formula ##STR10## wherein R is hydrogen or methyl, m is an integer of from 2 to 4 and n is an integer of from 2 to 20.
Claim 3
Independent Claim
74 words
A method of improving the dimensional stability of wood fibrous material, which comprises impregnating said wood fibrous material with one or more monomers having the formula ##STR11## wherein R is hydrogen or methyl, m is an integer of from 2 to 4 and n is an integer of from 2 to 20, and then subjecting said wood fibrous material to polymerization conditions effective to polymerize said monomer in situ in said wood fibrous material.
Claim 4
Independent Claim
74 words
A method of improving the dimensional stability of wood fibrous material, which comprises impregnating said wood fibrous material with one or more monomers having the formula ##STR11## wherein R is hydrogen or methyl, m is an integer of from 2 to 4 and n is an integer of from 2 to 20, and then subjecting said wood fibrous material to polymerization conditions effective to polymerize said monomer in situ in said wood fibrous material.
Claim 5
Dependent Claim
16 words
The process of claim 2 in which the wood fibrous material is wood or processed wood.
Claim 6
Dependent Claim
16 words
The process of claim 2 in which the wood fibrous material is paper or processed paper.
Claim 7
Dependent Claim
27 words
The process of claim 2 in which said monomer is impregnated into the wood fibrous material in the form of a solution thereof in a polar solvent.
Claim 8
Dependent Claim
11 words
The process of claim 5 in which the solvent is water.
References Cited (Backward Citations)
US3704161A
Cited
US4165400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |