Invention Grant
- Patent Title: Tackified polyolefin adhesive compositions
- Patent Title (中): 增粘聚烯烃粘合剂组合物
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Application No.: US14510152Application Date: 2014-10-09
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Publication No.: US09238763B2Publication Date: 2016-01-19
- Inventor: Ranjan Tripathy , Jennifer J. Austin , James N. Coffey , Yann Devorest , Jurgen J. Schroeyers , Joseph M. Delucia
- Applicant: ExxonMobil Chemical Patents Inc.
- Applicant Address: US TX Baytown
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Baytown
- Agent Priya G. Prasad
- Main IPC: B60C1/00
- IPC: B60C1/00 ; C08J3/22 ; C09J123/16 ; C09J123/12 ; C09J123/14

Abstract:
The present invention is related to adhesive compositions comprising a polymer blend of at least two different propylene-based polymers and one or more tackifiers. The polymer blend has a melt viscosity of about 900 cP to about 19,000 cP. When subjected to Temperature Rising Elution Fractionation, the 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 or less soluble than the first fraction at −15° C. in xylene, the second fraction having an isotactic (mm) triad tacticity of about 85 mol % to about 98 mol %. The tackifier has a softening point, as determined by ASTM E-28, of about 85 to about 135° C. and an aromaticity of about 2 to about 12 mol % aromatic protons.
Public/Granted literature
- US20150112014A1 Tackified Polyolefin Adhesive Compositions Public/Granted day:2015-04-23
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