Method for making free-flowing coated rubber pellets

Details Method for making free-flowing coated rubber pellets Method for making free-flowing coated rubber pellets

1988-12-22

1990-11-13

Ziegler, Jacob

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

428516, 428517, B32B 516, B32B 2708

Patent

active

049701185

ABSTRACT:
Free flowing coated pellets are prepared by blending a first polymer with a second polymer wherein the second polymer is a polymer which has a crystalline or semicrystalline melting point which is at least 10.degree. C. above the melting or softening point of the polymer, the two polymers being insoluble in one another in the melt state; (2) intimately blending the two polymers; and (3) extruding the blend through a die having an outlet die face which is maintained at a substantially lower temperature than the extruder melt temperature.
In its preferred embodiment the first polymer is an elastomer and the second polymer comprises at least one crystalline or semicrystalline plastic polymer. A typical composition comprises an EPM or EPDM rubber and a mixture of polyethylene and a crystalline copolymer of ethylene and propylene.

REFERENCES:
patent: 3930107 (1975-12-01), Yaeda et al.

Affiliated with

Also associated with

Rating

Method for making free-flowing coated rubber pellets 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 making free-flowing coated rubber pellets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making free-flowing coated rubber pellets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-776271