Process for producing sticky polymers

US4994534A · kind A · utility

Assignee

• Union Carbide Chemicals & Plastics · US

Inventors

• Seung J. Rhee · Montgomery, US
• Edgar C. Baker · Bound Brook, US
• David N. Edwards · Arcadia, US
• Kiu H. Lee · South Charleston, US
• John H. Moorhouse · Kendall Park, US
• Leonard S. Scarola · Berkeley Heights, US
• Frederick J. Karol · Montgomery, US

Key dates

• Filing date: Sep 28, 1989
• Grant date: Feb 19, 1991
• Expiry date: Sep 28, 2009

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/901
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for producing sticky polymers at polymerization reaction temperatures in excess of the softening temperature of the sticky polymers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting the polymerization reaction above the softening temperatures of the sticky polymers in the presence of about 0.3 to about 60 weight percent, based on the weight of the final product of an inlet particulate material having a mean particle size of from about 0.01 to about 10 micron meters whereby polymer agglomeration of the sticky polymers is maintained at a size suitable for continuously producing the sticky polymers.