Pressure-sensitive adhesive having broad useful temperature...

Details Pressure-sensitive adhesive having broad useful temperature... Pressure-sensitive adhesive having broad useful temperature...

C - Chemistry, Metallurgy

08

F

400/2057, 400/90

C08F 220/00 (2006.01) C09J 4/06 (2006.01) C09J 7/02 (2006.01)

Patent

CA 1263777

ABSTRACT This invention relates to pressure-sensitive adhesives and sheet material, including tapes and the like, coated therewith. There is a need for pressure-sensitive adhesives which have balanced adhesive properties over a wide temperature range, good adhesion to plastic films which for the most part have low energy surfaces, and which adhesives can be prepared easily and economically on conventional equipment. The adhesive composition of this invention consists essentially of a first component consisting essentially of a tackified, emulsifiable adhesive and a second component consisting essentially of at least one terminally unsaturated vinyl monomer, at least one vinyl-unsaturated, homopolymerizable, emulsifier monomer, and, optionally a small amount of an external emulsifier. The adhesive provides high tack and excellent adhesion at both low temperatures and high temperatures, thus rendering it suitable for outdoor use in areas that encounter extremes of weather.

518354

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