Heat curable solventless liquid prepolymer and novel monomer...

Details Heat curable solventless liquid prepolymer and novel monomer... Heat curable solventless liquid prepolymer and novel monomer...

C - Chemistry, Metallurgy

08

F

154/139, 402/300

C08F 220/48 (2006.01) C07D 209/48 (2006.01) C08F 222/38 (2006.01) C08F 236/12 (2006.01)

Patent

CA 1222592

HEAT CURABLE SOLVENTLESS LIQUID PREPOLYMER AND NOVEL MONOMER DERIVED FROM HEXYLCARBITOL FOR USE THEREWITH Abstract of the Disclosure A solventless prepolymer which is liquid at room temperature and cures at about 350°F. The novel prepolymer is formed from a rubber monomer; acrylonitrile or methacryloni- trile; and an ether derivative of methylol acrylamide. The ether is formed from methylol acrylamide and an alcohol which boils above the cure temperature of the prepolymer and which preferably is hexyl carbitol. The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight of the prepolymer less than about 25,000. The prepolymer is heat curable to form a solid polymer with ex- cellent compression set, tensile strength, and fuel resis- tivity. The method of formulating these polymers is also disclosed.

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