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Aqueous resin composition, laminated body and article employing same

A technology of water-based resin and composition, applied in the direction of synthetic resin layered products, layered products, flexible coverings, etc., can solve the problems of poor adhesion of magnetic coatings, etc., and achieve the effect of good ink adhesion

Inactive Publication Date: 2020-08-07
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the molecular chains of the resin constituting the film are highly oriented by biaxial stretching, resulting in poor adhesion between the surface of the biaxially stretched film and printing ink, magnetic paint, vapor-deposited metal, adhesives, etc. question

Method used

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  • Aqueous resin composition, laminated body and article employing same

Examples

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Embodiment

[0095] Hereinafter, the present invention will be described more specifically with reference to examples.

Synthetic example 1

[0096] (Synthesis Example 1: Synthesis of Polyester Polyol (1))

[0097] Into a reaction vessel equipped with a thermometer, a nitrogen introduction tube, and a stirrer, while introducing nitrogen, 35.4 parts of isophthalic acid, 17.8 parts of sebacic acid, 7.8 parts of adipic acid, 6.2 parts of ethylene glycol, neopentyl glycol 22.9 parts, 11.7 parts of 1,6-hexanediol, and 0.03 parts of dibutyltin oxide were subjected to polycondensation reaction at 230°C for 24 hours until the acid value became 1 or less at 180-230°C to obtain polyester polyol (1) [number average molecular weight 2100, acid value 0.6mgKOH / g, hydroxyl value 42.5mgKOH / g, aromatic ring concentration 2.51mol / kg].

manufacture example 1

[0098] (Manufacturing example 1: Synthesis of carboxyl group-containing polyurethane resin (I) composition)

[0099] 69.0 parts by mass of polyester polyol (1) of Synthesis Example 1 was dehydrated at 100° C. under reduced pressure in a reaction vessel, and after cooling to 80° C., 93.30 parts by mass of methyl ethyl ketone was added thereto, and stirred and uniformly mixed. Next, add 3.0 parts by mass of 1,4-butanediol, 6.1 parts by mass of 2,2'-dimethylolpropionic acid, and then add 19.4 parts by mass of toluene diisocyanate, react at 80°C for 12 hours, and implement carbamic acid Esterification process. After confirming that the isocyanate value has become 0.1% or less, 0.3 parts by mass of n-butanol was added, and after further reaction for 2 hours, it was cooled to 50° C. to obtain a carboxyl group-containing polyurethane resin (I )combination.

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Abstract

The present invention addresses the problem of providing an aqueous resin composition that is capable of forming a coating layer having good substrate adhesion and ink adhesion with respect to two types of substrates, namely, a polyester resin and a polyolefin resin. The present invention employs an aqueous resin composition containing: a urethane resin (A) having a carboxy group; a basic compound(B); a cross-linking agent (C); and an aqueous medium (D), and is characterized in that the urethane resin (A) is a reaction product of raw materials containing a polyol (a1) and a polyisocyanate (a2), the polyol (a1) contains at least one type of substance selected from a group consisting of a polyol (a1-1) having a carboxy group, a polyester polyol (a1-2), and a polyether polyol (a1-3), and thecross-linking agent (C) contains a carbodiimide compound.

Description

technical field [0001] The present invention relates to an aqueous resin composition, a laminate and an article using the composition. Background technique [0002] Biaxially stretched thermoplastic films (biaxially stretched films) are used for insulating materials, graphics, photographic films, and magnetic tapes due to their excellent electrical / physical properties such as electrical insulation, transparency, dimensional stability, and toughness. , metal vapor deposition film, various packaging materials and other extensive fields. However, the molecular chains of the resin constituting the film are highly oriented by biaxial stretching, resulting in poor adhesion between the surface of the biaxially stretched film and printing ink, magnetic paint, vapor-deposited metal, adhesives, etc. question. [0003] In order to cope with such a problem, a method has been proposed in which a water-based resin composition called a primer or an anchor coating agent (Japanese original...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04B32B27/40B65D65/40C09D175/04
CPCB32B27/40B65D65/40C08L75/04C09D175/04C08G18/4018C08G18/6603C08J7/04C08J2323/00C08J2367/00C08K5/29
Inventor 小柳达史岩尾武志
Owner DIC CORP
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