Heat curable solventless liquid prepolymer and novel monomer der

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

1983-01-21

1985-12-31

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

524548, 524555, 526259, 526262, 526304, C08F 800, C08F22236, C07C12100

Patent

active

045620083

ABSTRACT:
A solventless prepolymer which is liquid at room temperature and cures at about 350.degree. F. The novel prepolymer is formed from a rubber monomer; acrylonitrile or methacrylonitrile; 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 excellent compression set, tensile strength, and fuel resistivity. The method of formulating these polymers is also disclosed.

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