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Adhesive resin, adhesive composition, layered bonded composite using the adhesive composition, and outer packaging for lithium batteries

An adhesive layer, composition technology, applied in the direction of synthetic resin layered products, adhesive types, battery boxes/jackets, etc.

Inactive Publication Date: 2020-12-18
温州富乐沐新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some reports, the relevant heat resistance, the change of bonding strength over time, the retention rate of bonding strength, and the processing characteristics of composite materials have not touched

Method used

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  • Adhesive resin, adhesive composition, layered bonded composite using the adhesive composition, and outer packaging for lithium batteries
  • Adhesive resin, adhesive composition, layered bonded composite using the adhesive composition, and outer packaging for lithium batteries
  • Adhesive resin, adhesive composition, layered bonded composite using the adhesive composition, and outer packaging for lithium batteries

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0047] Synthesis Example 1: This synthesis example includes adding 166. grams (1.0 mol) of isophthalic acid (IPA) in sequence to a four-necked reaction flask equipped with a stirrer, a thermometer, a condenser, and a nitrogen conduit, and 1,6-hexane Diol (HDO) 177.3 grams (1.5mol), 2-methyl-1,3-propanediol (MPG) 90.1 grams (1mol) and catalyst tetrabutyl titanate 0.1 grams (about 0.3mmol), under nitrogen, 180 Carry out dehydration esterification reaction at -220°C. After removing about 36 grams of quantitatively generated water, add 560.9 grams (1mol) of hydrogenated dimer acid (HDA), start high vacuum at 220°C, and drop to about 200Pa within 40 minutes, further The polyester polyol a with a number-average molecular weight of about 2000 is obtained through esterification, and the composition ratio of molecular weight to main body is IPA:HAD:HDO:MPG 50:50:60:40. (As shown in Table 1).

Synthetic example 2

[0048] Synthesis example 2: use 3-methyl-1,5-pentanediol (MPD) 118.2. grams (1.0mol) to replace 2-methyl-1,3-propanediol (MPG) in synthesis example 1, other and synthetic Same as Example 1, polyester polyol b with a number average molecular weight of about 2000 was obtained, and the molecular weight main composition ratio IPA:HAD:HDO:MPD was 50:50:60:40.

Synthetic example 3

[0049] Synthesis Example 3: In a four-necked reaction flask equipped with a stirrer, a thermometer, a condenser, and a nitrogen conduit, 83.1 grams (0.5 mol) of isophthalic acid (IPA), 1,6-hexanediol (HDO) 177.3 gram (1.5 mol), 90.1 gram (1.0 mol) of 2-methyl-1,3-propanediol (MPG) and 0.1 gram (about 0.3 mmol) of tetrabutyl titanate as a catalyst, and dehydrate at 180-220°C under nitrogen Esterification reaction. After removing about 18 grams of quantitatively generated water, add 841.4 grams (1.5 mol) of hydrogenated dimer acid (HDA), start a high vacuum at 220 ° C, drop to about 200 Pa within 40 minutes, and further esterify to obtain a number average molecular weight of about 2000 The polyester polyol c. The molecular weight main body composition ratio IPA:HAD:HDO:MPG is 25:75:60:40, and other parts in this synthesis example are the same as synthesis example 1.

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PUM

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Abstract

The present invention provides a resin for tree binders, which is prepared into an adhesive composition, and the adhesive resin composition exhibits good adhesion to various substrates such as polymer films and metal foils, and is used as an adhesive layer, through the roll-to-roll process to manufacture layered laminated composite materials, which are used as outer packaging materials for flexible packaging lithium batteries. The composite material shows good properties such as good electrolyte corrosion resistance, high temperature and high humidity hydrolysis resistance, chemical resistance, heat resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of film structures, and in particular relates to a resin for an adhesive, an adhesive composition, a laminated composite using the adhesive composition, and an outer package for a lithium battery. Background technique [0002] Polyurethane resin, because of its unique molecular structure, has high cohesive energy, adjustable softness, and strong intermolecular interaction with polar surfaces such as metal, wood, fiber, rubber, plastic, etc. It is widely used as an adhesive in the fields of packaging, clothing, motors, automobiles and construction. [0003] Urethane-based adhesives for packaging are used in the production and use of bag-like packaging materials for storage and storage of food and medicine. Such bag-like packaging materials usually use metal foil such as aluminum foil and plastic polymer film, and form a laminated composite material through an adhesive. The composite material has the charact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/06C09J163/00B32B7/12B32B27/06B32B15/08B32B33/00H01M2/02H01M50/116H01M50/124
CPCC09J163/00C09J175/06B32B7/12B32B15/08B32B33/00B32B2307/306B32B2307/714H01M50/116H01M50/124Y02E60/10
Inventor 李燚汪冬靳健
Owner 温州富乐沐新材料有限公司
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