GB496125A - Improvements in the manufacture and production of adhesives - Google Patents
Improvements in the manufacture and production of adhesivesInfo
- Publication number
- GB496125A GB496125A GB14075/37A GB1407537A GB496125A GB 496125 A GB496125 A GB 496125A GB 14075/37 A GB14075/37 A GB 14075/37A GB 1407537 A GB1407537 A GB 1407537A GB 496125 A GB496125 A GB 496125A
- Authority
- GB
- United Kingdom
- Prior art keywords
- product
- urea
- impregnated
- water
- products
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09J161/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C09J161/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/26—Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
An adhesive, capable of hardening under the action of heat, is produced by adding to the solution of a water-soluble urea-formaldehyde condensation product wood meal or water-insoluble degradation products thereof impregnated with from about 5 to 20 per cent of a substance capable of reacting with the urea-formaldehyde condensation product, if necessary under the action of condensing agents. Such substance is one insoluble in water or becoming so by mixing with the solution of the urea-formaldehyde condensation product and containing -NH- or-NH2 groups or phenolic radicles, e.g. polymerization products of unsaturated acid amides or imides, condensation products of urea or thiourea with aldehydes or alcohols, albumen, or degradation products thereof, albuminous substances, reaction products of polyamines with mono- or polybasic acids, and phenol-aldehyde condensation products. In a modification, the treated wood meal is mixed with a dry, water-soluble ureaformaldehyde condensation product and subsequently stirred with water before use. In examples, an aqueous solution of a ureaformaldehyde product is mixed with (1) wood meal, or (2) beech wood meal and rye flour impregnated with a urea-formaldehyde product, (3) a cellulose degradation product impregnated with polyacrylic acid amide, (4) lignin impregnated with a reaction product of stearic acid with diethylene triamine, and (5) wood meal impregnated with a phenol-formaldehyde condensation product. Ammonium chloride is added in examples 1-3. Specification 370,972, [Group VIII], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB14075/37A GB496125A (en) | 1937-05-20 | 1937-05-20 | Improvements in the manufacture and production of adhesives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB14075/37A GB496125A (en) | 1937-05-20 | 1937-05-20 | Improvements in the manufacture and production of adhesives |
Publications (1)
Publication Number | Publication Date |
---|---|
GB496125A true GB496125A (en) | 1938-11-21 |
Family
ID=10034518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14075/37A Expired GB496125A (en) | 1937-05-20 | 1937-05-20 | Improvements in the manufacture and production of adhesives |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB496125A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2446304A (en) * | 1944-02-23 | 1948-08-03 | Roman Charles | Composite wood product |
EP4393973A1 (en) | 2022-12-28 | 2024-07-03 | Prefere Resins Holding GmbH | Low emission phenolic resins |
-
1937
- 1937-05-20 GB GB14075/37A patent/GB496125A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2446304A (en) * | 1944-02-23 | 1948-08-03 | Roman Charles | Composite wood product |
EP4393973A1 (en) | 2022-12-28 | 2024-07-03 | Prefere Resins Holding GmbH | Low emission phenolic resins |
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