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Polyolefin adhesive composition

A composition and adhesive technology, applied in the direction of adhesive types, adhesives, non-polymer adhesive additives, etc., can solve problems such as difficult to consider adhesive adhesion, achieve good pot life, good Adhesive effect

Active Publication Date: 2021-11-02
TOYOBO MC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to think that these adhesives can have sufficient adhesion

Method used

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  • Polyolefin adhesive composition
  • Polyolefin adhesive composition
  • Polyolefin adhesive composition

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0090] Into a 1 L autoclave, 100 parts by mass of a propylene-butene copolymer ("TAFMER (registered trademark) XM7080" manufactured by Mitsui Chemicals Co., Ltd.), 150 parts by mass of toluene, 25 parts by mass of maleic anhydride, di-tert-butyl peroxide 6 mass parts, after heating up to 140 degreeC, it stirred further for 3 hours. Then, after cooling the obtained reaction liquid, it was poured into the container containing a large amount of methyl ethyl ketone, and resin was precipitated. Then, the acid-modified propylene-butene copolymer graft-polymerized with maleic anhydride, (poly) maleic anhydride and low molecular weight substances are separated and purified by centrifuging the liquid containing the resin. Then, by drying at 70° C. for 5 hours under reduced pressure, a maleic anhydride-modified propylene-butene copolymer (PO-1, acid value 48 mgKOH / g resin, weight average molecular weight 50,000, Tm 75° C., ΔH25J / g).

manufacture example 2

[0092] Except that the charging amount of maleic anhydride is changed into 20 mass parts, carry out in the same way as manufacture example 1, thus obtain maleic anhydride modified propylene-butene copolymer (PO-2, acid value 25mgKOH / g resin, weight average Molecular weight 80,000, Tm75°C, ΔH30J / g).

manufacture example 3

[0094] Except that the charging capacity of maleic anhydride is changed into 3 mass parts, di-tert-butyl peroxide is changed into 0.5 mass parts, carry out similarly with manufacture example 1, thus obtain maleic anhydride modified propylene-butene copolymer ( PO-3, acid value 5mgKOH / g resin, weight average molecular weight 180,000, Tm80°C, ΔH25J / g).

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Abstract

Provided is an adhesive composition containing modified polyolefin and epoxy resin, which has good pot life and good adhesion between a metal substrate and a polyolefin resin substrate. The adhesive composition contains a crystalline acid-modified polyolefin (A) with an acid value of 5 to 50 mgKOH / g resin, a glycidylamine type epoxy resin (B1), a glycidyl ether type epoxy resin (B2) and an organic The solvent (E) further contains any one of the acid anhydride monomer (C) and the heterocyclic compound (D) having two or more nitrogens.

Description

technical field [0001] The present invention relates to an adhesive composition for bonding a polyolefin resin substrate to a metal substrate. More specifically, it relates to an adhesive combination containing a crystalline acid-modified polyolefin, an epoxy resin, and an organic solvent, and further containing any one of an acid anhydride monomer and a heterocyclic compound having two or more nitrogens thing. Background technique [0002] Conventionally, for metal substrates such as exterior panels for home appliances, raw materials for furniture, and building interior parts, the surface has been coated with vinyl chloride resin (hereinafter, also simply referred to as "PVC"), and then laminated. Laminated body; Nowadays, environmental issues are attracting attention, and it has been proposed to use polyolefin resin instead of PVC. Polyolefin resin is widely used in various fields because it is non-toxic, exhibits strong durability against acids, alkalis, organic solvent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J123/26B32B15/085C09J11/06C09J163/00
CPCB32B15/085C09J11/06C09J123/26C09J163/00Y02E60/10B32B7/12B32B2457/18C09J123/30H01M10/0525H01M50/124
Inventor 坂田秀行柏原健二
Owner TOYOBO MC CORP