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Heat curable solventless liquid prepolymer and novel monomer derived from hexylcarbitol for use therewith
Heat curable solventless liquid prepolymer and novel monomer derived from hexylcarbitol for use therewith
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机译:可热固化的无溶剂液体预聚物和衍生自己基卡必醇的新型单体
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摘要
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 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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