Patent US2184952A successfully refreshed from Google Patents.
Patent US4082903A successfully refreshed from Google Patents.
US4082903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tree foliage extenders and fillers for wood adhesives
Assignee: HER MAJESTY IN RIGHT OF CANADA FORESTRY, Minister of
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Filing: 1977-02-25
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Granted: 1978-04-04
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Expires: 1997-02-25
Abstract
Abstract An extender (and filler) for wood adhesives is provided from tree foliage powder or mulch. Suitable tree foliage includes that of conifers and other evergreens, and of deciduous trees. Test results have shown equivalent or better performance for the foliage powder compared to the normally used wheat flour, in bonding plywood or particleboard.
Inventors
- 👤 Suezone Chow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:45
CPC Classifications
C; C09; C09J; C09J197/00; C09J197/02; B; B32; B32B; B32B21/00; C08; C08L; C08L97/00; C08L97/02; C09J161/00; C09J161/04; C09J161/06; C09J161/20; C09J161/22; C09J161/24; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/26; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
22 words
An adhesive composition for bonding wood comprising (a) a wood adhesive, and (b) finely divided tree foliage as extender or as extender-plus-filler.
Claim 2
Dependent Claim
22 words
An adhesive composition for bonding wood comprising (a) a wood adhesive, and (b) finely divided tree foliage as extender or as extender-plus-filler.
Claim 3
Dependent Claim
16 words
The adhesive composition of claim 1 wherein the foliage is derived from conifers or other evergreens.
Claim 4
Dependent Claim
14 words
The adhesive composition of claim 1 wherein the foliage is derived from deciduous trees.
Claim 5
Dependent Claim
27 words
The adhesive composition of claim 1 wherein the amount of foliage ranges from about 1 to 65% by weight of the composition solids, suitable for plywood bonding.
Claim 6
Dependent Claim
26 words
The adhesive composition of claim 1 wherein the amount of foliage ranges up to about 95% by weight of the composition solids, suitable as particleboard-type adhesive.
Claim 7
Dependent Claim
15 words
The adhesive composition of claim 1 wherein the adhesive resin is a phenol-aldehyde condensation product.
Claim 8
Dependent Claim
14 words
The adhesive composition of claim 1 wherein the adhesive resin is a phenol-formaldehyde novolac.
Claim 9
Dependent Claim
15 words
The adhesive composition of claim 1 wherein the adhesive resin is a urea-aldehyde condensation product.
Claim 10
Dependent Claim
13 words
The adhesive composition of claim 1 wherein the adhesive resin is polyvinyl acetate.
Claim 11
Dependent Claim
29 words
The adhesive composition of claim 1 wherein the foliage is a mixture derived from different tree species, the mixture being selected to give a desired viscosity to the composition.
Claim 12
Dependent Claim
11 words
The adhesive composition of claim 1 in uniformly blended powder form.
Claim 13
Dependent Claim
15 words
The adhesive composition of claim 1 containing water to give a suitable viscosity for spreading.
Claim 14
Dependent Claim
10 words
The adhesive composition of claim 1 in final cured form.
Claim 15
Dependent Claim
12 words
An artificial wood board product bonded with the adhesive of claim 13.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |