Polyethylene wax

Details Polyethylene wax Polyethylene wax

1987-05-27

1989-04-11

Lilling, Herbert J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

524275, 568458, 568459, 568460, 585 3, 585 9, 585510, 585520, 585732, C07C 4720

Patent

active

048208760

ABSTRACT:
Synthetic polyethylene wax having low molecular weight of 250 to 3000 and a density of 0.930 to 0.950 is prepared in a high pressure process at pressures of at least 800 bar using a carbonyl compound such as acetaldehyde as chain transfer agent. The resulting wax with incorporated CO has good compatibility in hot melt systems, and may be stripped to remove light ends, increase density and crystallinity and improve thermal stability.

REFERENCES:
patent: 3997624 (1976-12-01), Hudgin
patent: 4012547 (1977-03-01), Smedberg
patent: 4039560 (1977-08-01), Tomoshige
patent: 4127619 (1978-11-01), Godfrey
patent: 4146521 (1979-03-01), Godfrey
patent: 4246150 (1981-01-01), Bower
patent: 4304698 (1981-12-01), Tachi et al.
patent: 4471086 (1984-09-01), Foster
patent: 4567223 (1986-01-01), Ames

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