Rapid curing resin compositions employing aminoplast condensation polymer modified with a di-substituted bis-aryl amine |
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| 申请号 | US40840973 | 申请日 | 1973-10-23 | 公开(公告)号 | US3896081A | 公开(公告)日 | 1975-07-22 |
| 申请人 | WEYERHAEUSER CO; | 发明人 | BAXTER GENE F; FREEMAN HARLAN G; TIEDEMAN GEORGE T; | ||||
| 摘要 | Described herein are resin products having particular utility as rapid curing adhesives for wood and other materials, and processes for making the resin compositions. The products are made by reacting aldehude condensation polymer containing reactive alkylol groups, such as a phenol-formaldehyde condensation polymer, with di-substitued bis-aryl amine having the formula: WHERE R and R'' are alkoxy, amino, hydrogen, hydroxyl, nitro, carboxyl or C1 to C4 alkyl AND X is to obtain an amine-modified polymer. When the resulting reaction product is blended with an appropriate curing agent, such as an aldehyde, the compositions cure very rapidly at ambient temperature. When pieces of wood or other materials are spread with the preferred adhesives employing the resin compositions of this invention and brought into contact with another wood surface the bond strength develops within minutes. The durability, strength and flexibility of the adhesives of this invention under adverse weathering conditions are excellent. |
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| 权利要求 | 1. AN AMINE-MODIFIED CONDENSATION POLYMER COMPRISING THE REACTION PRODUCT OF AN AMINOPLAST CONTAINING REACTIVE ALKYLOL GROUPS WITH A BIS-ARYL AMINE OF THE FORMULA 2. allowing the resulting blend to cure to an insoluble, infusible state at ambient temperatures. 2. The modified polymer of claim 1 wherein said amine is 4,4''-methylenedianiline. 3. the modified polymer of claim 1 wherein said amine is 4,4''-oxydianiline. 4. The modified polymer of claim 1 wherein said amine is 4,4''-diaminodiphenylamine. 5. The modified polymer of claim 1 wherein said amine is o-tolidine. 6. The modified polymer of claim 1 wherein said aminoplast comprises the condensation product of formaldehyde with urea, melamine or melamine-urea. 7. The modified polymer of claim 6 wherein the amount of said amine is from 0.05 to 2.0 parts by weight per part of said aminoplast. 8. The modified polymer of claim 6 wherein the amount of said amine is from 0.1 to 1.0 part by weight per part of said aminoplast. 9. The modified polymer of claim 6 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 10. The modified polymer of claim 9 wherein the amount of said amine is from 0.05 to 2.0 parts by weight per part of said aminoplast. 11. The modified polymer of claim 9 wherein the amount of said amine is from 0.1 to 1.0 part by weight per part of said aminoplast. 12. The modified polymer of claim 1 wherein the amount of said amine is from 0.05 to 2.0 parts by weight per part of said aminoplast. 13. The modified polymer of claim 12 wherein said aminoplast is a urea-formaldehyde resin. 14. The modified polymer of claim 13 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 15. The modified polymer of claim 1 wherein the amount of said amine is from 0.1 to 1.0 part by weight per part of said aminoplast. 16. The modified polymer of claim 15 wherein said aminoplast is a urea-formaldehyde resin. 17. The modified polymer of claim 16 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 18. The modified polymer of claim 1 wherein said aminoplast is a urea-formaldehyde resin. 19. The modified polymer of claim 18 wherein the amount of said amine is at least 0.1 part by weight per part of said aminoplast. 20. The modified polymer of claim 1 wherein said aminoplast is a melamine-urea-formaldehyde resin. 21. The modified polymer of claim 20 wherein the amount of said amine is at least 0.1 part by weight per part of said aminoplast. 22. The modified polymer of claim 1 wherein said aldehyde is formaldehyde. 23. The modified polymer of claim 1 wherein the amount of said amine is at least 0.1 part by weight per part of said aminoplast. 24. A rapid curing adhesive composition comprising a. an amine-modified condensation polymer comprisng the reaction product of an aminoplast containing reactive alkylol groups with a bis-aryl amine of the formula 25. The composition of claim 24 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 26. The composition of claim 24 wherein said curing agent comprises an alkylene donating compound, a diisocyanate, or an epoxide. 27. The composition of claim 24 wherein said curing agent comprises an alkylene donating compound. 28. The composition of claim 24 wherein said curing agent comprises formaldehyde. 29. The composition of claim 24 wherein the amount of curing agent is from 0.02 to 1.0 part by weight per part by weight of said modified condensation polymer. 30. THe composition of claim 24 wherein said aminoplast is a urea-formaldehyde resin. 31. The composition of claim 30 wherein the amount of said amine is from 0.1 to 1.0 part by weight per part of said aminoplast. 32. The composition of claim 31 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diamiodiphenylamine or o-tolidine. 33. The composition of claim 24 wherein said aminoplast is a melamine-urea-formaldehyde resin. 34. The composition of claim 33 wherein the amount of said amine is from 0.1 to 1.0 part by weight per part of said aminoplast. 35. The composition of claim 34 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 36. A process for the preparation of a rapid curing adhesive comprising 37. The process of claim 36 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 38. The process of claim 36 wherein said curing agent comprises an alkylene donating compound, a diisocyanate or an epoxide. 39. The process of claim 36 wherein said curing agent comprises an alkylene donating compound. 40. The process of claim 36 wherein said curing agent comprises formaldehyde. 41. The process of claim 36 wherein the amount of curing agent is from 0.02 to 1.0 part by weight per part by weight of said modified condensation polymer. 42. The process of claim 36 wherein said aminoplast is a urea-formaldehyde resin. 43. The process of claim 42 wherein the amount of said amine is from 0.1 to 1.0 part by weight per part of said aminoplast. 44. The process of claim 43 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 45. A process for producing a liquid amine-modified condensation polymer comprising reacting at elevated temperatures an aminoplast containing reactive alkylol groups with a bis-aryl amine of the formula 46. The process of claim 45 wherein said aminoplast is a urea-formaldehyde resin. 47. The process of claim 45 wherein said amine is 4,4''-methylenedianiline, 4,4''-oxydianiline, 4,4''-diaminodiphenylamine or o-tolidine. 48. The process of claim 47 wherein said aminoplast is a urea-formaldehyde resin. |
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