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Hot melt adhesive composition

A technology of hot-melt adhesives and compositions, applied in the direction of wax adhesives, adhesives, polymer adhesive additives, etc., can solve the problem of increasing the adhesion of polymers, increasing the setting time of HMA compositions, and reducing Adhesive and other issues

Active Publication Date: 2017-09-08
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, reducing the amount of tackifier and increasing the amount of polymer has the effect of degrading adhesion and increasing the setting time of the HMA composition when using traditional polymers like ethylene vinyl acetate (EVA) and polyethylene copolymers. shortcoming

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  • Hot melt adhesive composition
  • Hot melt adhesive composition
  • Hot melt adhesive composition

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[0240] 1. Preparation of PBPE

[0241] Hafnium metal complexes using polyvalent aryloxyether catalysts produced seven PBPEs. Catalyst A is a hafnium metal complex of a polyvalent aryloxyether catalyst, which is [[2',2"'-[(1R,2R)-1,2-cyclohexanediylbis(methylene oxide -κO)]bis[3-(9H-carbazol-9-yl)-5-methyl[1,1'-biphenyl]-2-hydroxyl-κO]](2-)]dimethyl hafnium.

[0242] Catalyst B is a hafnium metal complex of a polyvalent aryloxyether catalyst, which is [[2',2"'-[1,3-propanediylbis(oxyl-κO)]bis-{3-[ 9H-3,6-bis-(1,1-dimethylethyl)-carbazol-9-yl]}-5'-fluoro-5-(1,1,3,3-tetramethylbutyl )-[1,1'-biphenyl]-2-hydroxyl-κO]](2-)]dimethyl hafnium.

[0243] Table 1 below provides the names and structures of Catalyst A and Catalyst B.

[0244] Table 1. Hafnium metal complexes of polyvalent aryloxyether catalysts

[0245]

[0246] Each PBPE was prepared according to the following procedure. Catalyst A and co-catalyst component solutions were metered using pumps and mass flow meters,...

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Abstract

The present disclosure provides a composition. In an embodiment an adhesive composition is provided and includes A) a propylene based plastomer or elastomer (PBPE) comprising up to 10 wt % units derived from ethylene and having (i) a Koenig B-value less than 1.0; (ii) a total unsaturation per mole of propylene from 0.01% to 0.03 %; (iii) a density from 0.870 g / cc to 0.890 g / cc; (iv) a melt viscosity at 177 DEG C from 800 mPa.s to 11,000 mPa.s; and (v) a weight average molecular weight from 20,000 to 50,000 g / mol; B) a tackifier; and C) a wax.

Description

[0001] References to related applications [0002] This application claims priority to US Provisional Application Serial No. 62 / 040,123, filed August 21, 2014, the entire contents of which are hereby incorporated by reference to the extent that language is not inconsistent with this application. technical field [0003] The present invention relates to compositions suitable for adhesive applications and in particular hot melt adhesive applications. Background technique [0004] A general rule of thumb for compositions used in traditional hot melt adhesive (HMA) formulations is 1 / 3 polymer, 1 / 3 tackifier, and 1 / 3 wax. Due to the shortage and increasing cost of tackifiers, there is a growing market demand for HMA formulations with higher polymer content and less tackifier. However, reducing the amount of tackifier and increasing the amount of polymer has the effect of degrading adhesion and increasing the setting time of the HMA composition when using traditional polymers li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/16C09J191/06
CPCC09J123/16C08L2314/06C08L91/06C08K5/0083C09J7/20C09J11/00C09J2301/312C08F2500/17C08F2800/20C08F2500/08C08F10/06C09J123/12C08F210/06C08L23/16C08K5/103C09J11/06C09J11/08
Inventor 金怡K·沃尔顿G·马尔尚S·雅尔瓦A·W·麦克林纳格罕K·布朗C·艾佛森C·里基
Owner DOW GLOBAL TECH LLC