Rapid curing resin compositions employing a phenol-aldehyde condensation polymer reacted with a bis-aryl amine

Abstract

Abstract DESCRIBED HEREIN ARE RESIN PRODUCTS HAVING PARTICULAR UTILITY AS RAPID CURING ADHESIVE FOR WOOD AND OTHER MATERIALS, AND PROCESS FOR MAKING THE RESIN COMPOSITIONS. THE PRODUCTS ARE MADE BY REACTING AN ALDEHYDE CONDENSATION POLYMER CONTAINING REACTIVE ALKYOL GROUPS, SUCH AS PHENOL-FORMALDEHYDE CONDENSATION POLYMER, WITH DI-SUBSTITUTED BIS-ARYL AMINES HAVING THE FORMULA: ((R,(H2N-)PHENYL)-X-),R'',(H2N-)BENZENE WHERE R AND R'' ARE ALKOXY, AMINO, HYDROGEN, HYDROXYL, NITRO, CARBOXYL OR C1 TO C4 ALKYL AND X IS -(C(-Y1)(-Y2))Z- WHERE Y1 AND Y2 ARE HYDROGEN OR ALKYL RADICALS HAVING FROM 1 TO 3 CARBON ATOMS AND Z IS AN INTEGER RANGING FROM 0 TO 2; 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 ADHESIVE 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 ADHESIVE OF THIS INVENTION UNDER ADVERSE WEATHERING CONDITIONS ARE EXCELLENT.

Inventors

• 👤 G Tiedeman
• 👤 G Baxter
• 👤 H Freeman

Bibliographic Details