用于金属表面处理的水性组合物及其应用

By using an aqueous composition containing acrylic resin, film-forming aids, lubricants, and water-soluble chromium compounds, the problems of film inhomogeneity and increased roller roughness in metal surface treatment on rollers are solved, resulting in long roller life and excellent performance.

CN117355575BActive Publication Date: 2026-07-17CHEMETALL GMBH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHEMETALL GMBH
Filing Date
2022-05-04
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing metal surface treatment compositions tend to cause film inhomogeneity and increased roller surface roughness when used on rollers, and do not have good recoatability, high temperature resistance, anti-darkening properties, corrosion resistance, alkali resistance, boiling water resistance, and solvent resistance.

Method used

Using an aqueous composition containing acrylic resin, film-forming aid, lubricant and water-soluble chromium compound, a uniform film is formed on the metal surface by methods such as roller coating, suitable for applications on stainless steel and polyurethane rollers.

Benefits of technology

It significantly extends the service life of the roller, forms a uniform film, and has excellent recoatability, high temperature resistance, anti-darkening properties, corrosion resistance, alkali resistance, boiling water resistance, and solvent resistance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure BDA0004540605560000091
    Figure BDA0004540605560000091
  • Figure BDA0004540605560000101
    Figure BDA0004540605560000101
  • Figure BDA0004540605560000111
    Figure BDA0004540605560000111
Patent Text Reader

Abstract

本发明涉及一种水性组合物,包含组分(A)10‑35重量%的无羟基的丙烯酸树脂,其中根据ISO13321:2004通过动态光散射测量,所述丙烯酸树脂具有50‑200μm范围内的平均粒径,组分(B)0.1‑4重量%的成膜助剂,其在1atm下的沸点不超过300℃,组分(C)1‑8重量%的润滑剂,根据ISO13321:2004通过动态光散射测量,该润滑剂具有100‑600nm范围内的平均粒径,以及组分(D)0.1‑1重量%的水溶性铬化合物,其中其重量由铬元素计算,且所有组分的重量百分比基于该水性组合物的总重量。
Need to check novelty before this filing date? Find Prior Art