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Adhesive promoters and methods for use on polar textile to bond non-polar substrates

A technology of composition and solvent composition, applied in the direction of adhesive types, chemical instruments and methods, grafted polymer adhesives, etc., can solve the problems of no adhesion, achieve easy flexibility, and improve processability , Balance the effect of adhesion

Active Publication Date: 2018-03-16
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they generally do not exhibit sufficient adhesion to polyethylene- or polypropylene-containing polyolefins when compared to functionalized polyolefins

Method used

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  • Adhesive promoters and methods for use on polar textile to bond non-polar substrates
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  • Adhesive promoters and methods for use on polar textile to bond non-polar substrates

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example

[0224] Examples of the present disclosure are provided by way of illustration and not limitation. A summary of materials used in the following examples is provided in Table 1.

[0225] Table 1: Materials

[0226]

[0227]

[0228] *Solution viscosity - 25 wt% polymer in toluene at 25°C (Pa·s)

[0229] ** Melt index can be calculated according to the following formula (see USP6,335,410): I 2 (190°C / 2.16kg) = 3.6126[10 (log(η)-6.6928) / -1.1363 ] - 9.31851, where η = melt viscosity in cP at 350°F (177°C). Melt viscosity = 13,000 cP at 177°C.

[0230] 1. Preparation of Primer Composition

[0231] A. Preparation of Precoat Primer Compositions

[0232] The precoat primer compositions were prepared using three separate methods.

[0233] Cold blending (solution blending at room temperature (22°C)): Weigh a given amount of solvent into two 2 L three-neck round bottom glass flasks in a fume hood. After attaching a reflux condenser and an overhead mechanical stirrer, the f...

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Abstract

The present disclosure provides a primer composition. In an embodiment, the primer composition includes a functionalized polyolefin, a functionalized styrenic block copolymer containing greater than or equal to 20 wt% polymerized styrene, a solvent composition and an isocyanate component. The primer composition is suitable for use as an adhesive layer between a substrate and a polyolefin layer.

Description

[0001] References to related applications [0002] This application claims priority to US Patent Application Serial No. 62 / 186,682, filed June 30, 2015, which is hereby incorporated by reference in its entirety. Background technique [0003] Polyethylene, polypropylene and polyolefin polymers have numerous applications in food packaging, pipes, stretch goods, bottles and bags. However, the low surface energy and low polarity of polyolefins greatly limit their applications when properties such as printing, spraying or adhesion are required. [0004] Conventional methods to improve the adhesion and printability of polyolefins include bulk modification by blending with polar polymers and surface modification by means of physical and chemical treatments. Such treatments range from simple methods such as solvent cleaning (or wiping), surface roughening by sandpaper, acid and alkali treatments, to more complex treatments such as plasma, corona and flame treatments. Some of these ...

Claims

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Application Information

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IPC IPC(8): C08G18/77C08G18/76C08G18/69C08G18/10C08G18/32C09D151/00C09J151/00B32B5/02B32B7/12B32B27/12B32B27/32
CPCB32B5/02B32B7/12B32B27/12B32B27/32C08G18/10C08G18/3206C08G18/692C08G18/7671C08G18/776C09D151/006C09J151/006C08L2205/025B32B2262/0261B32B2262/0276B32B2255/26B32B2255/02C08L51/006C08L2205/02C08L2666/36C08L2666/42C08J3/24C09D153/025C09D151/06C09J153/025C09J151/06C08K5/29C08L23/0815C09D5/002C09D153/005C08L51/06
Inventor Q·万S·K·安德森P·A·皮尔特K·D·安德森Y·李C·里皮善
Owner DOW GLOBAL TECH LLC
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