Process for the production of polyolefin powder

Details Process for the production of polyolefin powder Process for the production of polyolefin powder

1975-11-19

1977-07-26

Hamrock, William F.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528488, 528489, 528491, 528493, 528495, 528496, 528497, 528498, 528499, C08F 612, C08C 206

Patent

active

040384772

ABSTRACT:
Spherical polyolefin (or modified polyolefin) powders having high bulk density, narrow particle size distribution and good powder flowability are prepared by cooling a polyolefin solution comprising a solvent and nonsolvent for the polyolefin and containing a small amount of an inorganic compound and, if desired, water. The polyolefin powders are suitable for powder coating. Suitable solvents are hydrocarbons, such as hexane, heptane, etc., and a mixture of hydrocarbon and nonsolvent for polyolefin such as methyl alcohol, ethyl alcohol, isopropyl alcohol, etc. The ratio of a hydrocarbon
onsolvent is 95/5 - 30/70, preferably 90/10 - 50/50. Suitable inorganic compounds are phosphoric acid, sulfuric acid, sulfurous acid, hydrochloric acid, sodium hydroxide, potassium hydroxide, ammonium hydroxide, inorganic salts thereof, etc. and the most preferable inorganic compound is phosphoric acid.

REFERENCES:
patent: 2484614 (1949-10-01), D'Ianni
patent: 3269997 (1966-08-01), Lyons et al.
patent: 3554994 (1971-01-01), Maloney et al.
patent: 3746681 (1973-07-01), McClain

Affiliated with

Also associated with

Rating

Process for the production of polyolefin powder 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 production of polyolefin powder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of polyolefin powder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-727437