Patent ID: 6777502
Filing Date: 2004-08-17
Classification: C08G,C08K,C08L,Y10T

Abstract:
A process of preparing a coupled polymer comprising heating an admixture containing (1) at least one polyolefin comprising ethylene and at least one comonomer which is selected from alpha olefins having at least 3 carbon atoms, dienes and combinations thereof, wherein said polyolefin has a molecular weight distribution of less than or equal to about 3 and (2) a coupling amount of from about 0.01 to about 5 weight precent of polymers in the admixture of at least one poly(sulfonyl azide) and heating to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least about 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer, wherein coupling is indicated by a viscosity change at a shear frequency of 0.1 rad/sec of greater than 5 percent.