GB717093A - Improvements in laminating wood and method of making same - Google Patents
Improvements in laminating wood and method of making sameInfo
- Publication number
- GB717093A GB717093A GB20880/52A GB2088052A GB717093A GB 717093 A GB717093 A GB 717093A GB 20880/52 A GB20880/52 A GB 20880/52A GB 2088052 A GB2088052 A GB 2088052A GB 717093 A GB717093 A GB 717093A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resin
- phenol
- functional
- tri
- phenols
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
Abstract
A composition comprising a phenol-formaldehyde resin capable of being converted to insoluble-infusible form under the action of heat and a methylene-yielding hardening agent, a methylene-yielding hardening agent for the resin, e.g. hexamethylene tetramine or para-formaldehyde, a rubbery butadiene-acrylonitrile copolymer preferably containing 15-45 per cent. by weight of combined acrylonitrile and which is compatible with the resin and has never been dissolved in a solvent, and a filler, e.g. wood flour, silica such as sand or diatomaceous earth, carbon black, clay, asbestos fibres, or cellulose fibres, is mixed and sheeted and then used for bonding layers of wood (see Group VIII). The resin may be a straight phenol-formaldehyde resin based on tri-functional phenols, e.g. ordinary phenol or modified by using tri-functional phenol with another phenol which can be tri-functional, di-functional or mono-functional, e.g. a resin based upon ordinary phenol but modified or co-condensed with a lesser proportion of any of the following phenols, which may be either pure or mixed: the cresols, the xylenols, the tri-methylphenols, mono-chlorophenols, dichlorophenols, diamylphenols, diisopropylphenols, p-tertiary-butylphenol, p-phenyl-phenol, resorcinol, and hydroquinone. It is preferred to employ a resin based upon ordinary phenol and the phenol cardanol obtained from cashew nut shell oil by heating, in an amount of 3-12 mol percentage of the latter based on the 2 phenols. Preferably the resin and the rubbery butadiene-acrylonitrile copolymer are used in proportions ranging from 30 to 70 per cent. by weight of the resin and correspondingly from 70 to 30 per cent. by weight of the copolymer based on the resin and the copolymer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US717093XA | 1951-11-30 | 1951-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB717093A true GB717093A (en) | 1954-10-20 |
Family
ID=22103062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20880/52A Expired GB717093A (en) | 1951-11-30 | 1952-08-20 | Improvements in laminating wood and method of making same |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB717093A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3247042A (en) * | 1962-08-27 | 1966-04-19 | Weyerhaeuser Co | Apparatus and method for manufacturing laminar materials joined together with wet adhesive webs |
US5405705A (en) * | 1991-12-13 | 1995-04-11 | Oshika Shinko Co., Ltd. | Method for preparing resin-reinforced decorative board |
-
1952
- 1952-08-20 GB GB20880/52A patent/GB717093A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3247042A (en) * | 1962-08-27 | 1966-04-19 | Weyerhaeuser Co | Apparatus and method for manufacturing laminar materials joined together with wet adhesive webs |
US5405705A (en) * | 1991-12-13 | 1995-04-11 | Oshika Shinko Co., Ltd. | Method for preparing resin-reinforced decorative board |
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