Process for pellet formation from amorphous polyester

Details Process for pellet formation from amorphous polyester Process for pellet formation from amorphous polyester

1995-01-20

1996-07-30

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By extrusion spraying or gravity fall through orifice

264 5, 264345, 5283082, C08G 6318, B29C 3502

Patent

active

055408680

ABSTRACT:
The present invention relates to a process for forming robust, uniform, low molecular weight crystalline polyester particles. Such particles are useful for forming higher molecular weight polyesters, for example, by solid-state polymerization. Either conventionally-formed, essentially amorphous, non-molten polyester pellets at ambient temperatures or, alternatively, essentially amorphous molten polyester droplets, can be crystallized by rapidly subjecting the droplets or pellets to a thermal shock according to the process of the present invention.

REFERENCES:
patent: 3405098 (1968-10-01), Heighton et al.
patent: 3544525 (1970-12-01), Balint et al.
patent: 4064112 (1977-12-01), Rothe et al.
patent: 4165420 (1979-08-01), Rinehart
patent: 4254253 (1981-03-01), Brent, Jr. et al.
patent: 4271287 (1981-06-01), Shah
patent: 4436782 (1984-03-01), Ho
patent: 4612363 (1986-09-01), Sasaki et al.
patent: 5340509 (1994-08-01), Chang et al.
patent: 5362844 (1994-11-01), Kerpes et al.

Affiliated with

Also associated with

Rating

Process for pellet formation from amorphous polyester 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 pellet formation from amorphous polyester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for pellet formation from amorphous polyester will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1656158