GB703235A - Improvements in or relating to the gluing of wood and similar materials without using high temperatures - Google Patents
Improvements in or relating to the gluing of wood and similar materials without using high temperaturesInfo
- Publication number
- GB703235A GB703235A GB5328/49A GB532849A GB703235A GB 703235 A GB703235 A GB 703235A GB 5328/49 A GB5328/49 A GB 5328/49A GB 532849 A GB532849 A GB 532849A GB 703235 A GB703235 A GB 703235A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- formaldehyde
- acids
- wood
- acid
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
- C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
- C08G8/24—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups C08G8/10 - C08G8/20
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Wood or similar material is glued together by aqueous solutions of the alkaline condensation products of phenols, phenol sulphonic acids and formaldehyde; the gluing being performed in the presence of acids. Specified phenols are phenol, cresols, xylenols and other phenol homologues. Specified acids are sulphuric, hydrochloric, formic, sulphonic acids of aromatic hydrocarbons, the acid obtained by acidifying the condensation product of phenol sulphonic acid and formaldehyde in the presence of alkali, and the product obtained by sulphonating novolaks. In examples, (1) The sodium salt of phenol-para-sulphonic acid and formaldehyde are heated in presence of caustic soda, phenol is added and the mixture agitated. Sulphuric acid is added to the resultant solution which is used to glue wood. (2) The solution of example (1) is spray dried, dissolved in water and mixed with p-toluene-sulphonic acid. (3) The sodium salt of a sulphonation product of technical cresol, phenol and formaldehyde are condensed in presence of caustic soda. The product is spray dried and its aqueous solution is mixed with p-toluene-sulphonic acid. Specifications 703,233 and 703,234 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE703235X | 1948-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB703235A true GB703235A (en) | 1954-02-03 |
Family
ID=6614031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5328/49A Expired GB703235A (en) | 1948-10-01 | 1949-02-28 | Improvements in or relating to the gluing of wood and similar materials without using high temperatures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB703235A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2235461A (en) * | 1989-08-23 | 1991-03-06 | Boer Es Cipoeipari Kutato Fejl | Process for making synthetic tanning agent and for tanning leather |
-
1949
- 1949-02-28 GB GB5328/49A patent/GB703235A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2235461A (en) * | 1989-08-23 | 1991-03-06 | Boer Es Cipoeipari Kutato Fejl | Process for making synthetic tanning agent and for tanning leather |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB515517A (en) | Manufacture of mixed resins for cation exchange | |
GB703235A (en) | Improvements in or relating to the gluing of wood and similar materials without using high temperatures | |
GB726782A (en) | Cation exchange resins | |
GB613139A (en) | Improvements relating to cation-exchange materials | |
GB703234A (en) | Improvements in or relating to the manufacture of water soluble condensation products | |
GB1220018A (en) | New formaldehyde condensation products and their use | |
GB465803A (en) | The manufacture of tanning materials | |
GB490296A (en) | Manufacture of tanning agents | |
GB723628A (en) | Improvements relating to condensation products, being more especially tanning agents, and their use | |
GB703233A (en) | Improvements in or relating to the manufacture of a glue soluble in cold water | |
GB710757A (en) | Cation-exchanging synthetic resins | |
GB745626A (en) | Improved process for the production of light-fast tanning substances | |
GB649516A (en) | Process of manufacturing synthetic tannin from aromatic sulphonic acids | |
GB713941A (en) | Manufacture of tanning agents | |
GB384619A (en) | Manufacture of aromatic oxy-carboxylic acids | |
GB291474A (en) | Improved cotton or linen fabrics and the production thereof | |
GB608516A (en) | Improvements relating to cation-exchange resins | |
GB496898A (en) | Process for the manufacture of tanning agents | |
GB810338A (en) | Blood glue and process of making the same | |
GB490665A (en) | Manufacture of tanning materials | |
GB750143A (en) | Manufacture of tanning agents | |
GB701103A (en) | Improvements in the production of watersoluble condensation products | |
GB494871A (en) | Improvements in the manufacture and production of substances having tanning action | |
GB443967A (en) | The manufacture of tanning materials | |
GB731610A (en) | Improvements in or relating to the production of resinous condensation products |