Aqueous dispersion, and laminate

A water-based dispersion and acid modification technology, which is applied in the direction of layered products, chemical instruments and methods, synthetic resin layered products, etc., can solve the problems of durability decline, hydrolysis, etc., and achieve excellent content resistance and liquid stability Excellent, good chemical resistance effect

Inactive Publication Date: 2017-02-22
UNITIKA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the optical polyethylene terephthalate film has problems such as a decrease in durability and hydrolysis due to bleeding of the oligomer component

Method used

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  • Aqueous dispersion, and laminate
  • Aqueous dispersion, and laminate
  • Aqueous dispersion, and laminate

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0229] Production Example 1: Acid-modified polypropylene resin P-1

[0230] After 280 g of propylene-butene copolymer (mass ratio: propylene / 1-butene=80 / 20) was heated and dissolved in 470 g of xylene in a four-necked flask under a nitrogen environment, the temperature in the system was kept at 140° C. While stirring, 40.0 g of maleic anhydride as an unsaturated carboxylic acid and 28.0 g of dicumyl peroxide as a radical initiator were added over 2 hours, respectively, and then reacted for 6 hours. After completion of the reaction, the obtained reactant was poured into a large amount of acetone to precipitate a resin.

[0231] The precipitated resin was washed once with an acetone solution of triethylamine (mass ratio: triethylamine / acetone=1 / 4), and after that, after washing with acetone to reduce unreacted maleic anhydride, Drying was performed in a reduced-pressure dryer to obtain acid-modified polypropylene resin P-1.

manufacture example 2

[0232] Production Example 2: Acid-modified polypropylene resin P-2

[0233] In manufacture example 1, except having changed the acetone solution of triethylamine into acetone, and having changed the subsequent acetone washing into methanol washing, the same operation was performed, and the acid-modified polypropylene resin P-2 was obtained.

manufacture example 3

[0234] Production Example 3: Acid-modified polypropylene resin P-3

[0235] In Production Example 1, the addition amount of maleic anhydride was set at 60.0 g instead of 40.0 g, and the cleaning step of the acetone solution of triethylamine and the cleaning step of acetone were omitted, except that, the same operation was carried out to obtain acid-modified Polypropylene resin P-3.

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Abstract

An aqueous dispersion containing an acid-modified polyethylene resin (A), an acid-modified polypropylene resin (B), and an aqueous vehicle, wherein the aqueous dispersion is characterized in that: resin (A) contains an olefin component containing ethylene, and an unsaturated carboxylic acid component, as copolymer components; the unsaturated carboxylic acid component content is 0.1-15 mass%; resin (B) contains an olefin component comprising propylene and butene, and an unsaturated carboxylic acid component, as copolymer components; and the mass ratio (A / B) of resin (A) and resin (B) is 95 / 5-50 / 50.

Description

technical field [0001] The present invention relates to an aqueous dispersion excellent in adhesion to various substrates, especially in laminates in which a polyolefin substrate and other substrates are bonded. Background technique [0002] Polyolefin resins such as polypropylene resins are excellent in electrical properties, mechanical properties, chemical properties, formability, sanitation, and recyclability, and are mainly used in automobiles, electrical appliances, packaging, and daily miscellaneous goods. However, polyolefin resins generally do not have polar groups in their molecular chains, so there is a problem that adhesion with an adhesive is difficult. [0003] Therefore, it has been proposed to use a chlorinated polyolefin resin as an adhesive component when adhering to a polyolefin resin such as a polypropylene resin. However, chlorinated polyolefin resins generate harmful substances such as acidic gases when they are disposed of by incineration. Therefore, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06B32B27/32C08L23/14
CPCB32B27/32C08L23/06C08L23/14C08L23/0869
Inventor 吉野刚正奥村畅康大藤晴树志波贤人
Owner UNITIKA LTD
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