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Hot-melt adhesive agent

A hot-melt adhesive and thermoplastic technology, applied in the direction of adhesives, polymer adhesive additives, film/sheet adhesives, etc., can solve problems such as unpleasant smell, and achieve the effect of improving performance and usability

Inactive Publication Date: 2019-06-14
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since α-methylstyrene resins include volatile components, the odor of the components may be unpleasant

Method used

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Examples

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Embodiment

[0118] For the purpose of describing the present invention in a more detailed and specific manner, the present invention is described below by way of examples. These examples are for illustration only, and are not intended to limit the invention in any way.

[0119] The various components used to prepare the hot melt adhesive are shown below.

[0120] A) A thermoplastic block copolymer, which is a copolymer of a vinyl-based aromatic hydrocarbon and a conjugated diene-based compound.

[0121] (A1-1) Unhydrogenated triblock type styrene isoprene block copolymer (Kraton D1162PT (trade name), manufactured by Kraton Performance Polymers, Inc.).

[0122] (A1-2) Unhydrogenated triblock type styrene isoprene block copolymer (Vector 4211N (trade name), manufactured by Dexco Polymers).

[0123] (A1-3) Unhydrogenated triblock type styrene isoprene block copolymer (Vector 4114N (trade name, produced by Dexco Polymers)

[0124] (A2) Unhydrogenated styrene-butadiene diblock copolymer (As...

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Abstract

The invention provides a hot-melt adhesive agent which has excellent retention strength and anti-fragrance property, and shows little residual adhesive and unpleasant odor. A hot-melt adhesive agent having a thermoplastic block copolymer (A), the (A) being a copolymer of vinyl class aromatic hydrocarbons and conjugated diene compounds, wherein the thermoplastic block copolymer (A) comprises an unhydrogenized triblock type styrene isoprene block copolymer (A1) and an unhydrogenized styrene butadiene block copolymer (A2), and the hot-melt adhesive agent does not comprise an alpha-methylstyrene class resin (B) in an amount of not less than 5 parts by weight based on 100 parts by weight of the total weight of (A) and (B).

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Article 4 of the Paris Convention based on Japanese Patent Application No. 2016-209655 filed in Japan on October 26, 2016, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to a hot melt adhesive, and more particularly to a hot melt adhesive suitable for fastening absorbent articles such as sanitary napkins to garments such as underpants. Background technique [0004] An absorbent article is an article which is used to be fastened to clothing such as underwear and shirts, for example, to absorb bodily fluids expelled from the body, for example, such as menstrual blood, vaginal discharge, urine and sweat, and is used to prevent An uncomfortable feeling and unhygienic condition caused by body fluids adhering to clothing. As absorbent articles, sanitary napkins, urine-absorbing pads, maternity panties, breastfeeding pad...

Claims

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Application Information

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IPC IPC(8): C09J153/02C09J7/30
CPCC09J153/02C08L2205/02C09J7/30C09J7/21C08L101/00C08L53/02C08L25/16C08L91/00C09J11/08C09J2301/304C09J7/35A61F13/5605C09J153/025
Inventor 藤田智穗
Owner HENKEL KGAA
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