Hot melt adhesive composition
AssigneeGeorgia-Pacific Resins, Inc.
InventorsMichael C. Peck, Alan H. Deitch, Susan L. Whitfield
Life of this patent
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Abstract
An improved, stable rosin ester tackifier consisting essentially of an adduct of rosin and a polyhydric alcohol selected from the group consisting of trimethylolpropane, trimethylolethane, and mixtures thereof, and hot melt adhesive compositions consisting essentially of said tackifier and a polymer component, said compositions containing a mixture of antioxidants containing a higher alkyl diester of thiopropionic acid, a hindered phenolic compound and a phenol sulfide compound, preferably an alkyl phenol disulfide oligomer.
Claims23
A stabilized rosin ester consisting essentially of an adduct of rosin and a polyhydric alcohol selected from the group consisting of trimethylolpropane, trimethylolethane, and mixtures thereof, wherein said adduct is prepared by reacting said rosin and said polyhydric alcohol in the presence of a catalytic amount of calcium bis[monoethyl(3,5-di-t-butyl-4-hydroxy-benzyl) phosphonate as a phosphorus catalyst and a stabilizing amount of a phenol sulfide compound.
A stabilized rosin ester consisting essentially of an adduct of rosin and a polyhydric alcohol selected from the group consisting of trimethylolpropane, trimethylolethane, and mixtures thereof, and a stabilizing amount of a mixture of antioxidants containing as essential ingredients a higher alkyl diester of thiopropionic acid, a hindered phenolic compound and a phenol sulfide compound.
A hot melt adhesive composition consisting essentially of a polymer component, a rosin ester tackifier consisting essentially of an adduct of rosin and a polyhydric alcohol selected from the group consisting of trimethylolpropane, trimethylolethane, and mixtures thereof, and a stabilizing amount of a mixture of antioxidants containing as essential ingredients a higher alkyl diester of thiopropionic acid, a hindered phenolic compound and a phenol sulfide compound.
A hot melt adhesive composition consisting essentially of a polymer component, a rosin ester tackifier consisting essentially of an adduct of rosin and a polyhydric alcohol selected from the group consisting of trimethylolpropane, trimethylolethane, and mixtures thereof, a stabilizing amount of a mixture of antioxidants containing as essential ingredients a higher alkyl diester of thiopropionic acid, a hindered phenolic compound and a phenol sulfide compound and wax.
Dependencies are inferred from the claim text.