Surface modifier

A fluorine-free surface modifier with a specific chemical structure imparts water and oil repellency to textile and paper products, addressing the need for effective liquid repellency in these materials.

JP2026109372APending Publication Date: 2026-07-01DAIKIN INDUSTRIES LTD +1
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
DAIKIN INDUSTRIES LTD
Filing Date
2024-12-19
Publication Date
2026-07-01

AI Technical Summary

Technical Problem

Existing technologies lack effective fluorine-free surface modifiers that can impart liquid repellency, particularly water repellency, to textile and paper products.

Method used

A novel surface modifier comprising a liquid-repellent compound with a specific formula (-XR^n) containing an aliphatic hydrocarbon group and alkylsilyl groups, which can be applied to substrates to impart water and oil repellency without using fluorine compounds.

Benefits of technology

The surface modifier effectively imparts good liquid repellency, including water and oil repellency, to textile and paper products, achieving contact angles suitable for effective coating properties.

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Patent Text Reader

Abstract

To provide a novel surface modifier capable of imparting liquid repellency to fiber products and / or paper products. 【Solution means】The following formula: The following formula: -X-R n [In the formula, X is a direct bond or a (1 + n)-valent group, R is, independently at each occurrence, an aliphatic hydrocarbon group having at least one alkylsilyl group and optionally having a substituent, with 4 to 40 carbon atoms, n is 1 or more and 3 or less. ] a Z group represented by, and the alkylsilyl group has the following formula: -Si(R 1 )3 [In the formula, R 1 are each independently a hydrogen atom or an aliphatic hydrocarbon group having 1 to 10 carbon atoms and optionally having a substituent, and at least one of R 1 is an aliphatic hydrocarbon group having 1 to 10 carbon atoms and optionally having a substituent. ] A surface modifier containing a liquid repellent compound having a group represented by.
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