Patent ID: 9359535
Filing Date: 2016-06-07
CPC Classification: C08F,C08L,C09J

Claim Text:
1. A multi-modal polymer blend for use in an adhesive composition, wherein the blend comprises: a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C wherein the second propylene-based polymer is different than the first propylene-based polymer; wherein the multi-modal polymer blend has a Mw of about 10,000 g/mol to about 150,000 g/mol; and wherein, when subjected to Temperature Rising Elution Fractionation, the multi-modal polymer blend exhibits: a first fraction that is soluble at −15° C. in xylene, the first fraction having an isotactic (mm) triad tacticity of about 70 mol % to about 90 mol %; and a second fraction that is insoluble at −15° C. in xylene, the second fraction having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %.