GB979757A - Improvements in or relating to bonding of materials together by means of urea-formaldehyde adhesives - Google Patents
Improvements in or relating to bonding of materials together by means of urea-formaldehyde adhesivesInfo
- Publication number
- GB979757A GB979757A GB3406562A GB3406562A GB979757A GB 979757 A GB979757 A GB 979757A GB 3406562 A GB3406562 A GB 3406562A GB 3406562 A GB3406562 A GB 3406562A GB 979757 A GB979757 A GB 979757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- cured
- mol ratio
- glue
- bonding
- 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
- 239000000463 material Substances 0.000 title abstract 3
- 229920001807 Urea-formaldehyde Polymers 0.000 title 1
- 239000000853 adhesive Substances 0.000 title 1
- 230000001070 adhesive effect Effects 0.000 title 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 title 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 2
- 239000007795 chemical reaction product Substances 0.000 abstract 2
- 239000003292 glue Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000004606 Fillers/Extenders Substances 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract 1
- 235000011613 Pinus brutia Nutrition 0.000 abstract 1
- 241000018646 Pinus brutia Species 0.000 abstract 1
- 240000000359 Triticum dicoccon Species 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 239000011093 chipboard Substances 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- 235000013312 flour Nutrition 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
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
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
A bonding material is made by mixing a liquid non-resinous reaction product of urea (U) and formaldehyde (F) in a mol ratio of F/U between 4:1 and 7.3:1 which has a pH of at least 7.0 and a total solids content of 60 to 90% by weight, with sufficient U to adjust the total mol ratio of F/U to between 1.25:1 and 2:1 at a temperature below 38 DEG C. The liquid nonresinous reaction products used are described in U.S.A. Specification 2,652,377. Extenders, e.g. wheat, shell or wood flour or a -cellulose, water and a hardening catalyst, may be added. The final mixtures are spread on the materials to be bonded and cured in situ, preferably with the aid of heat and/or pressure. In Example 4, pine chips were first sprayed with a solution obtained by adding ammonium chloride to a glue solution made in the above manner, and then with an aqueous paraffin wax emulsion, and the treated chips were piled into a mat and press-cured at 149 DEG C. to yield chipboard. In other examples the glue is used for making laminates (see Division B5) and foundry sand cores. U.S.A. Specifications 2,193,630, 2,245,491, 2,320,301, 2,554,424, 2,559,578 and 2,772,197 also are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3406562A GB979757A (en) | 1962-09-05 | 1962-09-05 | Improvements in or relating to bonding of materials together by means of urea-formaldehyde adhesives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3406562A GB979757A (en) | 1962-09-05 | 1962-09-05 | Improvements in or relating to bonding of materials together by means of urea-formaldehyde adhesives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB979757A true GB979757A (en) | 1965-01-06 |
Family
ID=10360946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3406562A Expired GB979757A (en) | 1962-09-05 | 1962-09-05 | Improvements in or relating to bonding of materials together by means of urea-formaldehyde adhesives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB979757A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0052212A1 (en) * | 1980-11-13 | 1982-05-26 | BASF Aktiengesellschaft | Method of preparing aminoplast resins |
| GB2196342A (en) * | 1986-10-14 | 1988-04-27 | Borden Inc | Manufacture of fibreboard |
| EP0252867B1 (en) * | 1986-06-06 | 1994-04-20 | Enigma N.V. | Process for bonding water penetrable cellulosic particles |
-
1962
- 1962-09-05 GB GB3406562A patent/GB979757A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0052212A1 (en) * | 1980-11-13 | 1982-05-26 | BASF Aktiengesellschaft | Method of preparing aminoplast resins |
| EP0252867B1 (en) * | 1986-06-06 | 1994-04-20 | Enigma N.V. | Process for bonding water penetrable cellulosic particles |
| GB2196342A (en) * | 1986-10-14 | 1988-04-27 | Borden Inc | Manufacture of fibreboard |
| GB2196342B (en) * | 1986-10-14 | 1990-06-27 | Borden Inc | Manufacture of fibreboard |
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