1
Lonnie G Hazlitt, Daniel G Moldovan: High temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymers. The Dow Chemical Company, Timothy S Stevens, Nis H Juhl, January 17, 1989: US04798081 (212 worldwide citation)

A method and apparatus for analyzing a solution of a crystalline or a semi-crystalline polymer sample to determine a crystallinity versus weight percent profile concurrently with viscosity average molecular weight. The polymer sample is first precipitated from solution over a cooling temperature gra ...


2
Hazlitt Lonnie Gene, Maldovan Daniel Gene: High temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymers. Dow Chemical, June 24, 1987: GB2184368-A (4 worldwide citation)

A method and apparatus analyzes a polymer sample to determine the instantaneous intrinsic viscosity and the instantaneous viscosity average molecular weight of the various fractions of the continuous stream of fractionated polymer sample solution. The polymer sample is first precipitated over a cool ...