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Reactive adhesive agent, laminate, and package body

An adhesive and reactive technology, applied in the field of laminates, packaging, and reactive adhesives, can solve problems such as poor orange peel appearance, and achieve excellent storage stability, heat resistance and content resistance. Effect

Active Publication Date: 2021-07-23
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under such high-speed coating (also called high-speed processing) conditions, it goes without saying that solvent-free reactive adhesives that do not use organic solvents, even dry lamination types that can use organic solvents to adjust viscosity In the case of reactive adhesives, depending on the base material, there is also a problem that orange peel-like appearance defects are likely to occur

Method used

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  • Reactive adhesive agent, laminate, and package body
  • Reactive adhesive agent, laminate, and package body
  • Reactive adhesive agent, laminate, and package body

Examples

Experimental program
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Embodiment

[0179] The contents and effects of the present invention will be described in more detail below through examples, but the present invention is not limited to the following examples.

Synthetic example 1～16

[0180] Synthesis Examples 1-16: Manufacturing method of polyol composition (A)

Synthetic example 1

[0182] The synthetic method of polyester polyol (a1-1)

[0183] 35.2 g of ethylene glycol, 83.3 g of neopentyl glycol, and 105.3 g of 1,6-hexane were placed in a glass 2-liter four-neck flask equipped with a stirring blade, a temperature sensor, a nitrogen gas introduction pipe, and a rectification tower. Diol, 124.0g of adipic acid, 126.4g of isophthalic acid, 63.2g of terephthalic acid, 96.5g of dimer acid, 73.1g of 1×10 -6 The average particle size of more than 1% by mass and less than 1% by mass is 1×10 -3 The fine-grained PET particles A in the range of mm to 0.5 mm, and 0.2 g of dibutyltin oxide as a polymerization catalyst. The temperature was raised to 250°C while gradually raising the temperature under a nitrogen flow at normal pressure to carry out the dehydration reaction. After reacting at 250°C for 2 hours, it was confirmed that the contents became transparent and the top temperature of the distillation column was 80°C. Next, the rectification tower was dismantl...

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Abstract

A reactive adhesive agent containing a polyol composition (A) and a polyisocyanate composition (B), wherein: the polyol composition (A) contains a polyester polyol (A1) that is a reaction product by collective charging of polyethylene terephthalate, a polyhydric alcohol, and a polybasic acid, and / or a polyester polyurethane (A2) that is a reaction product of the polyester polyol (A1) and an isocyanate compound, the polyol composition (A) also containing microparticles (C) that have an average particle diameter of at least 1*10<-3> mm and less than 0.5 mm; and the microparticles (C) are contained in the polyol composition (A) in an amount of at least 1*10<-6> mass% and less than 0.1 mass% with respect to the total resin solids content of the polyol composition (A).

Description

technical field [0001] The present invention relates to a reactive adhesive, a laminate and a package using the same. Background technique [0002] Conventionally, lamination of various plastic films and laminates (lamination) of plastic films, metal vapor-deposited films, and metal foils have been used in various applications, such as food, pharmaceuticals, and daily necessities. Packaging materials, barrier materials, roofing materials, solar cell panel materials, battery packaging materials, window materials, outdoor floor materials, lighting protection materials, automotive parts, signboards, labels and other outdoor industrial applications, injection molding simultaneous decoration methods, etc. decorative purposes, etc. [0003] For these laminates, various plastic films, metal vapor-deposited films, or metal foils can be appropriately combined according to the required properties in various applications, and an adhesive corresponding to the required properties can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/20B32B27/26B32B27/40B65D65/40C09J175/06C08G18/42C08G18/46B32B7/12C08G63/127
CPCB32B7/12B32B27/20B32B27/26B32B27/40B65D65/40C08G18/42C08G18/46C08G63/127C09J175/06
Inventor 细野月子广田安信江波户博
Owner DIC CORP
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