US1877855A - Process of preserving wood - Google Patents

Process of preserving wood Download PDF

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Publication number
US1877855A
US1877855A US327473A US32747328A US1877855A US 1877855 A US1877855 A US 1877855A US 327473 A US327473 A US 327473A US 32747328 A US32747328 A US 32747328A US 1877855 A US1877855 A US 1877855A
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United States
Prior art keywords
wood
preserving wood
esters
preserving
instance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US327473A
Inventor
Hagedorn Max
Guhring Eugen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
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IG Farbenindustrie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/36—Aliphatic compounds

Description

Patented Sept. 20, 1932 UNTED STATES PATENT OFFICE MAX HAGEDORN AND EUGEN Gll'HRING, F DESSAU IN ANHALT, GERMANY, ASSIGNORS TO I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT, 0F FRANKFORT-ON-THE-MAIN, GERMANY, A CORPORATION OF GERMANY PROCESS OF PRESERVING- WOOD No Drawing. Application filed December 20, 1928, Serial No. 327,473, and in Germany December 20, 1927.
The present invention relates to a process of preserving wood by impregnating it with a high molecular carbohydrate derivative containing a radicle of a higher fatty acid,
l. for instance, of lauric acid or stearicacid.
By such impregnation the wood is rendered entirely Water-proof and decay thus becomes impossible.
As said carbohydrate derivatives containi ing a radicle of a higher fatty acid may be mentioned esters, ether-esters and mixed esters of cellulose or starch. They are'used in a li uid state preferably molten or dissolved 1n a suitable organic solvent. If de- 151 sired, antiseptic agents may be added to the substances used for the impregnation. Other additions may also be made, for instance of dyestuffs for producing special patterns or the like. i
The wood may, for instance, be impregniited as indicated in the following examp es.
Emample 1.The wood to be treated is freed from air and then impregnated, un-
der pressure, with a solution of 10 parts by weight of cellulose-trilaurate in 100 parts of an organic solvent,for instance, dichloromethane, chloroform or benzene.
molten condition, by application of pressure, into the wood to be treated.
An insoluble cellulose-trilaurate may be applied in the same manner.
What we claim is 1. The process of preserving wood by impregnating it with a carbohydrate derivative of the group consisting of lauric and stearic acid esters, mixed esters and ether-esters of Ewa'mple 2.A starch-laurate having a melting point above 100 C. is forced in a taining in their molecule the residue of lauric acid.
4. The process of preserving wood by impregnating it with a. cellulose ester of lauric acid.
In testimony whereof, we aflix our signa tures.
MAX HAGEDORN. EUGEN GI THRING.
US327473A 1927-12-20 1928-12-20 Process of preserving wood Expired - Lifetime US1877855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1877855X 1927-12-20

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US1877855A true US1877855A (en) 1932-09-20

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ID=7747225

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US327473A Expired - Lifetime US1877855A (en) 1927-12-20 1928-12-20 Process of preserving wood

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2156903A1 (en) * 1971-10-21 1973-06-01 Fosroc Ag
US5770265A (en) * 1995-09-26 1998-06-23 Triangle Laboratories, Inc. Environmentally friendly treatments to extend the functional life of wood structures and novel treated wood structures
FR2771043A1 (en) * 1997-11-19 1999-05-21 Univ La Rochelle Conservation of wood

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2156903A1 (en) * 1971-10-21 1973-06-01 Fosroc Ag
US5770265A (en) * 1995-09-26 1998-06-23 Triangle Laboratories, Inc. Environmentally friendly treatments to extend the functional life of wood structures and novel treated wood structures
FR2771043A1 (en) * 1997-11-19 1999-05-21 Univ La Rochelle Conservation of wood
WO1999025527A1 (en) * 1997-11-19 1999-05-27 Universite De La Rochelle Method for thermo-mechanical treatment of damaged or waterlogged natural timber

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