초록 ▼

A pressure-sensitive adhesive is disclosed which is prepared by hot melt blending paving grade asphalt, a depolymerized virgin rubber, a terpene resin, and a vulcanizable, non-depolymerized styrene-butadiene copolymer. These adhesives are especially useful in forming membranes by coating one side of

A pressure-sensitive adhesive is disclosed which is prepared by hot melt blending paving grade asphalt, a depolymerized virgin rubber, a terpene resin, and a vulcanizable, non-depolymerized styrene-butadiene copolymer. These adhesives are especially useful in forming membranes by coating one side of an asphaltic based coated reinforcement with these adhesives. They are useful for highway repair and maintenance purposes and for waterproofing and show good adhesion to cementitious, for example asphaltic concrete or Portland cement concrete, substrates.

대표청구항 ▼

In an article comprising a laminate of an asphaltic based composition coated on a reinforcement and including a pressure sensitive asphaltic based adhesive coated on one side of said laminate, the improvement wherein said adhesive is a hot melt blended composition consisting essentially of paving gr

In an article comprising a laminate of an asphaltic based composition coated on a reinforcement and including a pressure sensitive asphaltic based adhesive coated on one side of said laminate, the improvement wherein said adhesive is a hot melt blended composition consisting essentially of paving grade asphalt, effective tacky amounts of a depolymerized virgin rubber having a molecular weight of about 10,000 to about 110,000, effective viscosity depressing amounts of a terpene resin and effective cold flow resisting amounts of a non-depolymerized styrene-butadiene copolymer.