Wax-free, hot melt adhesive compositions

Details Wax-free, hot melt adhesive compositions Wax-free, hot melt adhesive compositions

1980-09-15

1981-08-11

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

156327, 156334, 260 336R, 260 457PH, 260 4595H, C08L 9304, C08K 513, C08K 552

Patent

active

042833175

ABSTRACT:
Wax-free hot melt adhesive compositions based on a copolymer of an .alpha.-olefin, especially ethylene, with an unsaturated carboxylic acid, especially an .alpha.,.beta.-unsaturated carboxylic acid, or with maleic anhydride and optionally also with another unsaturated carboxylic acid or ester; a tall oil rosin; and a hydrocarbon oil provide good quality bonds. When the level of oil is less than 15%, particularly up to about 13%, there is no oil exudation. The hot melt adhesive compositions of this invention have a good melt viscosity stability when an antioxidant, especially a hindered phenol or organic phosphite, is added. These compositions are useful for heat sealing cartons and for similar applications. Formulations containing tall oil rosins and processing oils approved by the Food and Drug Administration can be readily prepared.

REFERENCES:
patent: 3201374 (1965-08-01), Simms
patent: 3264272 (1966-08-01), Rees
patent: 3635861 (1972-01-01), Russell
patent: 3775146 (1973-11-01), Reckziegel et al.
patent: 3838079 (1974-09-01), Kosaka et al.
patent: 3860543 (1975-01-01), Masuda et al.
patent: 3862068 (1975-01-01), Russell
patent: 3884882 (1975-05-01), Caywood
patent: 3932341 (1976-01-01), Kutch et al.
patent: 4140733 (1979-02-01), Meyer et al.
patent: 4207220 (1980-06-01), Godfrey

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