Adhesive composition (case a)
AssigneeGulf Research & Development Company
InventorPallavoor R. Lakshmanan
Life of this patent
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Abstract
An adhesive composition consisting essentially of a styrene-butadiene block copolymer, a tackifier, a zinc salt of rosin and a hydrocarbon solvent. In a preferred embodiment the composition also contains a small amount of water.
Claims6
An adhesive composition consisting essentially of a styrene-butadiene block copolymer, a coumarone-indene tackifier, a solvent selected from the group consisting of aromatic hydrocarbons having from six to eight carbon atoms, aliphatic hydrocarbons having from six to eight carbon atoms, ketones having from two to four carbon atoms and esters having from two to four carbon atoms, said solvents having a boiling point between about 50.degree. and 145.degree. C., a zinc salt of rosin and, optionally, water wherein the components thereof are present in the following ranges:
- Component Weight Percent ______________________________________ Styrene-Butadiene Block Copolymer 100 Tackifier 10-400 Solvent 100-5,000 Zinc Salt of Rosin 0.1-40 Water 0-10. ______________________________________
Dependencies are inferred from the claim text.