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Multilayer Adhesive Products

A technology of multi-layer products and adhesives, applied in the direction of adhesive products, adhesive types, ester copolymer adhesives, etc.

Active Publication Date: 2021-09-17
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present disclosure addresses some of the difficulties and problems discussed above by discovering new adhesive articles with superior adhesive properties

Method used

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  • Multilayer Adhesive Products
  • Multilayer Adhesive Products
  • Multilayer Adhesive Products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0138] Example

[0139] Material

[0140]

[0141]

[0142]

[0143] The acrylic mixtures listed in Table 1 were prepared for compounding experiments. Acrylic mixtures M1 and M2 were prepared according to method A. This method represents that proposed by Hamer (US5804610). Acrylic mixture M3 was prepared according to method B.

[0144] Table 1

[0145]

[0146] Curable layers L1-L5 as listed in Table 2 were prepared using acrylic mixtures M1-M3. Curable layers L1 and L2 were prepared according to method C. Curable layers L3 and L4 were prepared according to method D. Curable layer L5 was prepared according to method E.

[0147] Using Method F, test specimens were prepared for the measurement of tensile modulus (E'), stress at maximum load (σ max load ) and elongation. Test specimens were prepared for the Parallel Torque Adhesion Test according to Method G, using the total energy listed in Table 2 to initiate cure. The adhesion properties of curable l...

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Abstract

The present invention describes an adhesive article comprising a foamed adhesive layer and a non-foamed adhesive layer. The adhesive of each adhesive layer comprises a tetrahydrofurfuryl (meth)acrylate copolymer; an epoxy resin; a polyether polyol; and optionally a hydroxyl-functional film-forming polymer. Adhesives are available in structural and semi-structural bonding applications and are designed to fail cohesively.

Description

technical field [0001] The present invention relates to structural and semistructural bonding adhesive articles, and methods for making the adhesives and articles. The present invention also relates to articles comprising one or more components bonded together with a structural bonding adhesive. Background technique [0002] Structural bonding tapes can be used to bond one or more substrates to each other. Many structural adhesive tapes fall into one of two groups: (1) structural adhesive tapes that are heat curable, and (2) structural adhesive tapes that are activatable with ultraviolet (UV) light. As the class name suggests, heat curable structural bonding tapes require heat to cure the adhesive composition of the tape. UVi Structural Bonding Tapes contain an adhesive composition that initially cures when exposed to UV light, but does not require heat to cure. Heat can be used to accelerate the cure rate of UVi structural adhesive tapes. [0003] Typically, a length of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B5/18B32B7/12C08J9/36C09J133/14C09J163/00C08L33/14C08L63/00
CPCB32B5/18C08J9/36C09J133/14C09J163/00B32B2266/0242B32B2266/0271B32B2405/00C08J2333/14C08J2363/00C09J133/066C09J133/08C09J139/04B32B2307/748B32B27/08B32B23/08B32B2266/0207B32B27/40B32B2307/54B32B2255/10B32B2255/12B32B2255/26B32B2266/025B32B27/34B32B27/32B32B27/38B32B27/36B32B27/365B32B2264/025B32B2264/101B32B15/082B32B2264/0242B32B27/20B32B15/092B32B23/20B32B23/22B32B2307/72B32B2264/0214B32B27/308B32B7/06B32B27/306B32B9/045B32B5/022B32B9/005B32B27/065B32B2266/0278B32B2307/4026B32B27/12B32B27/304B32B27/10B32B17/10C08L33/066C08L71/02C08L33/08C08L33/14C08L39/04B32B7/12C09J7/385C09J7/26C09J5/00C09J2400/243C09J2423/04C09J2423/046C09J2431/00C09J2431/006C09J2433/00C09J2433/006C09J2461/00C09J2461/006C09J2463/00C09J2463/006C09J2301/414
Inventor C·A·安德森K·S·谢弗T·Q·查斯特克J·E·贾诺斯基M·C·马丁A·F·舒尔茨C·S·托马斯P·O·雷科
Owner 3M INNOVATIVE PROPERTIES CO
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