GB190801922A - Impregnation of Wood and other Fibrous or Cellular Materials. - Google Patents

Impregnation of Wood and other Fibrous or Cellular Materials.

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Publication number
GB190801922A
GB190801922A GB190801922DA GB190801922A GB 190801922 A GB190801922 A GB 190801922A GB 190801922D A GB190801922D A GB 190801922DA GB 190801922 A GB190801922 A GB 190801922A
Authority
GB
United Kingdom
Prior art keywords
impregnation
wood
mixture
condensation
fibrous
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
Application number
Inventor
Leo Hendrik Baekeland
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB190801922A publication Critical patent/GB190801922A/en
Expired legal-status Critical Current

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  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

1922. Baekeland, L. H. Jan. 28. Wood substitutes; wood, treating for preserving &c.-Wood, sawdust, wood pulp, cork, cotton, asbestos, glass wool, and other organic and inorganic fibrous or cellular materials are impregnated with the condensation products of phenols and formaldehyde by impregnating with a liquid containing phenol or one of its homologues or a mixture, and aqueous formaldehyde, and heating the impregnated material to a temperature of 120-150‹ C. to bring about the condensation. Inorganic or organic acids or salts, for example zinc chloride or basic compounds may be added before or after the impregnation to act as condensing-agents. Some of the water may be removed. from the mixture before impregnation by shaking up with sodium or calcium chloride or other salt and separating the lower aqueous layer. The mixture may be heated to bring about a partial condensation before the impregnation, and the water which is formed may be separated. The partially condensed mixture may be thinned with solvents. Colouring or aromatic substances may be added. The condensation may be carried out under pressure, and in moulds, or the fibrous or cellular substances may be moulded before the impregnation.
GB190801922D 1908-01-28 1908-01-28 Impregnation of Wood and other Fibrous or Cellular Materials. Expired GB190801922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190801922T 1908-01-28

Publications (1)

Publication Number Publication Date
GB190801922A true GB190801922A (en) 1908-08-13

Family

ID=32207203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190801922D Expired GB190801922A (en) 1908-01-28 1908-01-28 Impregnation of Wood and other Fibrous or Cellular Materials.

Country Status (1)

Country Link
GB (1) GB190801922A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2504744A (en) * 1944-06-03 1950-04-18 Gen Electric Glass fiber sheet material
DE764498C (en) * 1935-07-03 1954-05-31 Siemens Schuckertwerke A G Molding compound for the production of homogeneous insulating parts in electrical engineering or the like.
DE966167C (en) * 1940-11-27 1957-07-11 Algemeene Kunstverzel Mij N V Process for the production of a coating composition which dries at room temperature
EP0191196A1 (en) * 1985-02-13 1986-08-20 Rütgerswerke Aktiengesellschaft Process for improving wood and use of the improved wood

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764498C (en) * 1935-07-03 1954-05-31 Siemens Schuckertwerke A G Molding compound for the production of homogeneous insulating parts in electrical engineering or the like.
DE966167C (en) * 1940-11-27 1957-07-11 Algemeene Kunstverzel Mij N V Process for the production of a coating composition which dries at room temperature
US2504744A (en) * 1944-06-03 1950-04-18 Gen Electric Glass fiber sheet material
EP0191196A1 (en) * 1985-02-13 1986-08-20 Rütgerswerke Aktiengesellschaft Process for improving wood and use of the improved wood

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