Process for the separation of plastics

Details Process for the separation of plastics Process for the separation of plastics

1990-08-15

1991-10-29

Lieberman, Allan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Process of treating scrap or waste product containing solid...

521 405, 521 46, 521 455, 521 47, 209 11, C08J 1100

Patent

active

050617354

ABSTRACT:
Thermoplastic materials are separated and recovered, according to the present invention, utilizing a process wherein a mixture of the thermoplastic material to be recovered and one or more contaminants are simultaneously heated and agitated. The mixture is heated to the temperature at which the thermoplastic will adhere to itself, but at which the contaminant has not become tacky. Impacting thermoplastic particles agglomerate, while the contaminant particles do not adhere to other contaminant particles or to the thermoplastic particles. The resulting mixture is passed through a series of screens of increasing mesh size to separate the larger thermoplastic particles from the smaller contaminant particles.

REFERENCES:
patent: 3976563 (1976-08-01), Scalco
patent: 4067826 (1978-01-01), Emery
patent: 4105593 (1978-08-01), Stavrinov
patent: 4148702 (1979-04-01), Lane

Affiliated with

Also associated with

Rating

Process for the separation of plastics does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the separation of plastics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the separation of plastics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1400956