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Curable and cured compositions

A technology of composition and curing agent, applied in the direction of adhesive type, adhesive, epoxy glue, etc.

Inactive Publication Date: 2013-07-03
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 compositions
  • Curable and cured compositions
  • Curable and cured compositions

Examples

Experimental program
Comparison scheme
Effect test

example

[0210] The specific materials and amounts thereof, as well as other conditions and details, recited in these examples should not be construed to be unduly limiting. These examples are illustrative only, and are not intended to limit the scope of the appended claims.

[0211] Solvents and other reagents used were obtained from Aldrich Chemical Company (Milwaukee, WI) unless otherwise indicated.

[0212] Table 2: Glossary of Material Terms

[0213]

[0214]

[0215]

[0216]

[0217] Test Methods

[0218] Steel plate oiled

[0219] Oil-coated steel panels (galvanized steel samples used as received) were prepared by applying the specified volume of Zeller-Gmelin KTL N16 oil to the area to be coated using the density data obtained from the material safety data sheet provided by the oil supplier To obtain a coating of 3 g / m2. Using the clean fingertips of a nitrile glove, spread the oil evenly over the surface. After the surface was covered, the oiled panels ...

example 1-15 and comparative example 1-5

[0251] For each sample, the amounts specified in Table 4 of the epoxy resin composition (ER1-ER17) and the appropriate curing agent mixture (CA1-CA4) were mixed with 1% by weight of glass beads (250 micron in diameter) in a paper cup Mix together well.

[0252] Table 4: Curable Compositions

[0253]

[0254] The bonds of Examples 1 to 15 and Comparative Examples 1 to 5 were prepared according to the instructions on cleaned or oiled steel samples. Examples 1 to 13 and Comparative Examples 1 to 5 were cured at room temperature for 24 hours and then at 180° C. for 30 minutes. Examples 14 and 15 were cured at room temperature for 24 hours. Lap shear, T-peel and ISO 11343 average impact peel tests were performed at ambient temperature. Table 5 provides the test results and failure modes exhibited by each instance. In this table, AF refers to adhesive failure, CF refers to cohesive failure, and TCF refers to thin cohesive failure.

[0255] Table 5: Adhesive properties

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Abstract

Curable compositions, cured compositions, and articles that include the cured compositions are described. The curable composition contains a) an epoxy resin, b) a curing agent, c) a reactive liquid modifier, and d) a toughening agent. The reactive liquid modifier is an acetoacetate ester of a polyol that is a vegetable oil, that is prepared from a vegetable oil, or that is a mixture thereof. The cured compositions can be used as adhesives such as structural adhesives or as polymeric coatings.

Description

[0001] Cross references to related patent applications [0002] This application claims priority to US Provisional Patent Application No. 61 / 413038, filed November 12, 2010, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] Curable compositions, cured compositions, and articles comprising the cured compositions are described. Background technique [0004] Various compositions are applied to substrates that may be contaminated with hydrocarbon-containing substances such as various oils and lubricants. Oil contamination is not uncommon on substrates that are part of a vehicle, such as an automobile. The presence of this oil contamination can inhibit good adhesion of the coating or adhesive to the substrate. [0005] It can be difficult to remove hydrocarbon-containing species from the surface of the substrate. Mechanical treatments such as dry wiping and / or using compressed air tend to leave a thin layer of hydrocarbon-co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/40C08G59/56C08L63/00
CPCC08G59/4007C08G59/50C08G59/56C08L63/00C09J163/00
Inventor C·J·坎贝尔K·M·勒万多维斯基K·奥伍萨-亚多姆
Owner 3M INNOVATIVE PROPERTIES CO