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Dual-pack adhesive and structural piece containing same

An adhesive, two-component technology, applied in the direction of non-polymer adhesive additives, adhesive types, adhesive additives, etc., can solve the problem of not being able to obtain sufficient adhesive strength, and achieve the goal of maintaining adhesive strength Effect

Inactive Publication Date: 2016-10-12
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, complex and expensive treatments are often required to bond the anti-adhesion substrates, and even when such treatments are performed, sufficient adhesion strength may not be obtained

Method used

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  • Dual-pack adhesive and structural piece containing same
  • Dual-pack adhesive and structural piece containing same
  • Dual-pack adhesive and structural piece containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5 and comparative example 1-11

[0087] Synthesis of Oligomers Containing α-Methylstyrene Groups (AMSPU2400)

[0088] 120.60g TMI (3-isopropenyl-α,α-dimethylbenzyl isocyanate; Cytec Industries, Inc.) and 600.00g JEFFAMINE D2000 (diamine-terminated polypropylene glycol, nominal molecular weight: 2000 ; Huntsman Petrochemical Corp.) were mixed and reacted overnight at room temperature without temperature adjustment. The results of IR spectroscopy show that the isocyanate peak is at a frequency of 2,265cm –1 disappears in time, thus confirming the completion of the reaction. In this way, an oligomer comprising α-methylstyrene groups (AMSPU2400) was obtained.

[0089] Initiator (B)

[0090] An amount of 11.87 g of triethylboron / 1,6-hexanediamine complex having a molar ratio of 2:1 was dissolved in 22.03 g of CX-100 (trimethylolpropane tris(3-(2- Propyleneimine)) propionate; DSM NeoResins). Next, 62.30 g of AMSPU2400, 3.60 g of Cab-O-Sil TS-720 (silane-modified fumed silica; Cabot Corp.) and 0.20 g of XC-...

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PUM

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Abstract

An adhesive exhibits superior adhesive strength on adhesive-resistant materials such as olefin elastomer substrates when cured at a comparatively high temperature of 35 DEG C, and is hot water resistant. A two-pack adhesive comprises (A) a primary agent containing (1) isobornyl methacrylate and (2) at least one type of monocyclic methacrylate selected from a group including phenoxyethyl methacrylate, tetrahydrofurfuryl methacrylate, and cyclohexyl methacrylate, and (B) an initiator containing an organoborane, with the adhesive containing from 40 to 200 parts by mass of the monocyclic methacrylate per 100 parts by mass isobornyl methacrylate.

Description

technical field [0001] The present disclosure relates to two-part adhesives and structures comprising the same, and in particular, to reactive two-part adhesives for low surface energy substrates and structures comprising the same pieces. Background technique [0002] Low surface energy plastic substrates such as polyethylene (PE), polypropylene (PP), and polytetrafluoroethylene (PTFE) require adhesives to be bonded in an efficient and effective manner. These substrates are known to have anti-adhesive properties. [0003] In order to bond these anti-adhesion substrates, surface treatments such as flame treatment, ITRO treatment, corona discharge, plasma treatment, ozone or oxidizing acid induced oxidation and sputter etching etc. are usually performed. Primers containing high surface energy materials may be used to coat the surface of the adhesion resistant substrate, but one of the above surface treatments may need to be performed to deposit a sufficient amount of primer....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J133/14C08F220/18C08F220/30
CPCC09J133/08C09J133/14C08F220/301C08F220/1806C08F220/1811C08F220/343C08K5/0091C09J4/00C08K5/55C09J7/241B32B27/08B32B7/12C09J133/10C08F220/18C09J11/06B32B27/32B32B2305/72C09J2423/006
Inventor 入江慎一
Owner 3M INNOVATIVE PROPERTIES CO
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