Process for making rubberized carbon black from waste rubber and

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

4234496, 4234497, 423460, 428403, 427249, C08J 1104, C07C 408, C09C 156, C23C 1600

Patent

active

055062741

ABSTRACT:
Waste rubber containing carbon black is broken down in size into small pieces, purged of air and then fed into a retort, likewise purged of air and continuously rotated or oscillated about its longitudinal axis. The retort is maintained at a temperature ranging between 275.degree. F. and 1000.degree. F., and preferably ranging between 500.degree. F. and 850.degree. F., to produce rubberized carbon black consisting of particles of carbon, each particle encapsulated in a sphere of rubber of 1-60 microns in diameter.
Rubberized carbon black can be compounded with virgin rubber or polymer such as scrap high density polyethylene or both virgin rubber and polymer, and can then be formed into various shapes having useful and valuable physical, mechanical and thermal properties.

REFERENCES:
patent: 2457962 (1949-11-01), Whaley
patent: 2457963 (1949-07-01), Thodos
patent: 2511901 (1950-03-01), Bunn
patent: 2526120 (1950-04-01), Crouch
patent: 2684290 (1954-09-01), Alexander et al.
patent: 2758039 (1956-02-01), Barbour
patent: 2900737 (1959-11-01), Heller
patent: 2908586 (1959-06-01), Braendle
patent: 3644131 (1972-02-01), Gotschall
patent: 3822218 (1974-02-01), Whittaker
patent: 3823221 (1974-10-01), Wakefield et al.
patent: 3823223 (1974-07-01), Liska et al.
patent: 3966487 (1976-06-01), Crane et al.
patent: 3978199 (1976-08-01), Maruhnic et al.
patent: 4235676 (1980-09-01), Chambers
patent: 4337294 (1982-03-01), Gunnell
patent: 4440807 (1984-01-01), Gunnell
patent: 4530305 (1985-02-01), Gunnell
patent: 5037628 (1991-08-01), Fader
patent: 5085738 (1992-02-01), Harris et al.
patent: 5168012 (1992-04-01), Watson et al.
patent: 5224432 (1993-07-01), Milsap, III
patent: 5389691 (1995-02-01), Cha et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for making rubberized carbon black from waste rubber and 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 making rubberized carbon black from waste rubber and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making rubberized carbon black from waste rubber and will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-139672

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.