US4134771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impregnating liquid for wood and wood products
Assignee: Gorivaerk As
•
Filing: 1977-07-01
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Granted: 1979-01-16
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Expires: 1997-07-01
Abstract
Abstract Impregnating liquid for wood and wood products containing a reaction product between tributyl tin oxide and one or more naphthenic acids and a non-oxidative drying binder comprising a polydiene resin. Said impregnating liquid can further comprise 2,4,5,6-tetrachlorisophthalonitrile.
Inventors
- 👤 Aksel T. Bentsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:39
CPC Classifications
A; A01; A01N; A01N55/00; A01N55/02; A01N55/04; B; B27; B27K; B27K3/00; B27K3/02; B27K3/08; B27K3/34; B27K3/343; B27K3/38; B27K3/42; B27K3/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
Impregnating liquid for wood and wood products based on an organic solvent containing a fugicidally active organo-tin compound and a binder, especially for use in vacuum impregnation, wherein the impregnating liquid contains a reaction product between tributyl tin oxide and one or more naphthenic acids and a non-oxidative drying binder comprising a polydiene resin which is a polymerization product of an unsaturated C 5 fraction from steam cracking or naphtha having an average molecular weight of about 1500.
Claim 2
Dependent Claim
78 words
Impregnating liquid for wood and wood products based on an organic solvent containing a fugicidally active organo-tin compound and a binder, especially for use in vacuum impregnation, wherein the impregnating liquid contains a reaction product between tributyl tin oxide and one or more naphthenic acids and a non-oxidative drying binder comprising a polydiene resin which is a polymerization product of an unsaturated C 5 fraction from steam cracking or naphtha having an average molecular weight of about 1500.
Claim 3
Dependent Claim
43 words
The impregnating liquid in accordance with claim 1 and further comprising from 1/2 to 5 percent by weight of said reaction product between tributyl tin oxide and said naphthenic acids and from 2 to 20 percent by weight of said non-oxidative drying binder.
Claim 4
Dependent Claim
27 words
The impregnating liquid in accordance with claim 1 and comprising 2 percent by weight of tributyl tin naphthenate and 5 percent by weight of said polydiene resin.
Claim 5
Dependent Claim
12 words
The impregnating liquid in accordance with claim 1 and further comprising 2,4,5,6-tetrachlorisophthalonitrile.
Claim 6
Dependent Claim
17 words
The impregnating liquid in accordance with claim 4 and comprising 0.2 percent by weight of said 2,4,5,6-tetrachlorisophthalonitrile.
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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |