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Curable And Cured Adhesive Compositions

A composition, adhesive technology, applied in the direction of film/sheet adhesive, adhesive type, adhesive, etc.

Inactive Publication Date: 2012-05-30
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liquid cleaning compositions can be effective, but these often need to be collected and reused or discarded

Method used

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  • Curable And Cured Adhesive Compositions
  • Curable And Cured Adhesive Compositions
  • Curable And Cured Adhesive Compositions

Examples

Experimental program
Comparison scheme
Effect test

example

[0146] Objects and advantages of this invention are further illustrated by the following examples, but the particular materials and amounts thereof recited in these examples, as well as other conditions and details, should not be construed to unduly limit this invention. These examples are illustrative only, and are not intended to limit the scope of the appended claims.

[0147] Solvents and other reagents used were purchased from Aldrich Chemical Company (Milwaukee, WI) unless otherwise noted.

[0148] Table 2: Glossary of terms used for materials

[0149]

[0150]

[0151]

[0152] Test Methods

[0153] Oil the metal plate

[0154] Using density data from the appropriate oil MSDS, apply the specified volume of OEST B804 / 3COW-1 oil to the area to be coated (metal used as received) to give a coating of 3 grams per square meter, whereby Prepare oil-coated steel panels. Using the clean fingertips of a nitrile glove, carefully spread the oil evenly over the su...

example 1-4

[0175] Examples 1-4: Cured Adhesive Compositions

[0176] Examples 1-4 are cured adhesive compositions prepared as indicated in Table 6 by mixing the indicated epoxy side (selected from Preliminary Examples 6-9) with the curing agent side (selected from Preparatory Example 5) . In a small tin cup, 43.8 grams of epoxy resin and reactive liquid modifier side and 10.0 grams of hardener side were thoroughly mixed together with 1 wt % glass beads (250 microns in diameter). Bonds were prepared as described above on steel as received (unoiled) and cured at room temperature for 24 hours and then at 180°C for 30 minutes.

[0177] The adhesive bonds were tested at room temperature as described above. The term "TCF" means thin profile cohesive failure, and the term "Coh" means cohesive failure.

[0178] Table 6: Cured Adhesive Compositions

[0179]

[0180] Preliminary Examples 10-12: First Part of Curable Adhesive Composition (Epoxy Resin and Reverse Responsive liquid mod...

example 5-6

[0185] Examples 5-6 are cured adhesive compositions prepared as indicated in Table 8 by mixing the indicated first part (selected from Preliminary Examples 10-11) with the second part (selected from Preparatory Example 5). In a small tin cup, 43.8 grams of the first part and 10.0 grams of the second part were thoroughly mixed together with 1% by weight glass beads (250 microns in diameter). Coated with 3g / m2 as above 2 Adhesions were prepared on steel in Oest B804 / 3COW-1 oil and cured at room temperature for 24 hours and then at 180°C for 30 minutes.

[0186] The adhesive bonds were tested at room temperature as described above. The term "TCF" means thin profile cohesive failure, and the term "Coh" means cohesive failure.

[0187] Table 8: Cured Adhesive Compositions

[0188]

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PUM

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Abstract

Curable adhesive compositions, cured adhesive compositions, and articles that include the cured adhesive compositions are described. The curable adhesive composition contains a) an epoxy resin, b) a curing agent, c) a reactive liquid modifier, and d) a toughening agent. The cured adhesive compositions can be used as structural adhesives.

Description

technical field [0001] Curable adhesive compositions, cured adhesive compositions, and articles comprising cured adhesive compositions are described. Background technique [0002] Structural adhesives are generally thermosetting compositions that can be used to replace or augment conventional joining techniques such as screws, bolts, nails, staples, rivets and metal fusion processes such as welding, brazing and soldering. Structural adhesives are used in a variety of applications such as within the automotive and aerospace industries. To be useful as a structural adhesive, good mechanical strength and impact resistance are required. [0003] The physical properties of a structural adhesive bond depend on the interaction between the structural adhesive and the surface of the substrate to which it is applied. Under ideal conditions, structural adhesives are applied to clean surfaces; however, the surfaces of some substrates are contaminated with hydrocarbon-containing substa...

Claims

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Application Information

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IPC IPC(8): C09J163/00
CPCC09J163/00Y10T428/31515C08G59/4014C08L63/00C09J7/00C09J11/00
Inventor 克利斯托弗·J·坎贝尔
Owner 3M INNOVATIVE PROPERTIES CO
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