Hot melt pressure sensitive adhesive composition
First Claim
1. A hot melt pressure sensitive adhesive composition comprisinga) an elastomeric component comprising i) a styrene-isoprene styrene block copolymer, and ii) a styrene-butadiene styrene block copolymer, and b) a tackifier component comprising i) a first hydrocarbon resin compatible with the styrene-isoprene styrene block copolymer and ii) a second hydrocarbon resin compatible with the styrene-butadiene styrene block copolymer.
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Accused Products
Abstract
A hot melt pressure sensitive adhesive for use with oriented polypropylene films is provided. The adhesive composition comprises an elastomeric component which is a blend of styrene-isoprene block copolymers and styrene-butadiene block copolymers mixed with a tackifier component. The tackifier component is a blend of at least two hydrocarbon resins, the first being compatible with the styrene-isoprene block copolymer and the second being compatible with the styrene-butadiene block copolymer.
43 Citations
25 Claims
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1. A hot melt pressure sensitive adhesive composition comprising
a) an elastomeric component comprising i) a styrene-isoprene styrene block copolymer, and ii) a styrene-butadiene styrene block copolymer, and b) a tackifier component comprising i) a first hydrocarbon resin compatible with the styrene-isoprene styrene block copolymer and ii) a second hydrocarbon resin compatible with the styrene-butadiene styrene block copolymer.
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8. A hot melt adhesive composition comprising:
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(a) 40 to 60 wt % of an elastomeric component, the elastomeric component comprising;
(i) 80 to 20 wt % of a styrene-isoprene block copolymer, and (ii) 20 to 80 wt % of a styrene-butadiene block copolymer, and (b) 60 to 40 wt % of a tackifier component, the tackifier component comprising;
(i) 80 to 20 wt % of a first hydrocarbon resin, the first hydrocarbon resin compatible with the styrene-isoprene block copolymer, and (ii) 20 to 80 wt % of a second hydrocarbon resin, the second hydrocarbon resin compatible with the styrene-butadiene sytrene block copolymer. - View Dependent Claims (9, 10, 11)
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12. An adhesive tape comprising:
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(a) an oriented polypropylene film (b) a hot melt adhesive composition comprising;
(i) an elastomeric component comprising;
(a) a styrene-isoprene block copolymer, and (b) a styrene-butadiene block copolymer; and
(ii) a tackifier component comprising;
(a) a first hydrocarbon resin compatible with the styrene-isoprene block copolymer, and (b) a second hydrocarbon resin compatible with the styrene-butadiene block copolymer wherein the hot melt adhesive composition is applied to one side of the oriented polypropylene film. - View Dependent Claims (13, 14, 15, 16)
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Specification