Method for treating waste high-polymer mixture

Details Method for treating waste high-polymer mixture Method for treating waste high-polymer mixture

1976-08-23

1977-06-21

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

23267R, 23271P, B29H 1900, C08J 1104

Patent

active

040310396

ABSTRACT:
A method for treating a waste high-polymer mixture by fractionating the mixture consisting essentially of five groups of high polymers, i.e., polyolefinic, polystyrenic, polyvinyl-chloride, thermosetting, and natural high polymers, taking advantage of their dissimilar solubilities in different organic solvents, characterized in that the mixture is brought into contact with o-xylene, p-xylene, or m-xylene, the solvents being used either singly or in a combination of two or more, at temperatures within a certain range or ranges to dissolve and fractionate the polystyrenic and polyolefinic high polymers, and the polyvinyl chlorides in the remainder are dissolved and fractionated by using at least one solvent selected from the group consisting of tetrahydrofuran, cyclohexanone, dioxane, and methylethylketone and at a temperature within a certain range, whereby the waste mixture is fractionated into the groups of polyolefinic, polystyrenic, polyvinyl-chloride, thermosetting, and natural high polymers.

REFERENCES:
patent: 2473920 (1949-06-01), Taylor
patent: 2522069 (1950-09-01), Staten et al.
patent: 2692820 (1954-10-01), Alway et al.
patent: 3296240 (1967-01-01), MacDonald et al.
patent: 3392158 (1968-07-01), Blair
patent: 3427370 (1969-02-01), Schnell et al.
patent: 3644227 (1972-02-01), Factor
patent: 3666691 (1972-05-01), Spiller
patent: 3696058 (1972-10-01), Teti
patent: 3836486 (1974-09-01), Hafner
patent: 3912664 (1975-10-01), Wainer

Affiliated with

Also associated with

Rating

Method for treating waste high-polymer mixture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for treating waste high-polymer mixture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for treating waste high-polymer mixture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-735038