Use of Oxygen Compounds of Aluminium as Corrosion Protection Agents and Release Agents for Soda-Lime-Silicate Glasses

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent introduces the use of aluminum oxygen compounds, such as aluminum hydroxide and sodium meta-aluminate, as corrosion protection and release agents for soda-lime-silicate glasses during storage and transport. These compounds, either as fine powders alone or mixed with polymer-based release agents, reduce glass corrosion and prevent glass sheets from sticking together, while causing minimal changes to the glass surface.

Use CasesContent extracted from patent full text and abstract with AI.

• Protecting flat glass panels during storage and shipment to prevent corrosion and adhesion.
• Manufacturing and packaging of glass products like container glass, tube glass (e.g., for fluorescent lamps), and flat glass.
• Incorporating corrosion protection into glass processing or coating lines to maintain surface quality for downstream applications.
• Using as an additive to polymer-based release powders in the glass industry as a safer alternative to traditional acidic or toxic corrosion inhibitors.

BenefitsContent extracted from patent full text and abstract with AI.

• Provides superior corrosion protection for soda-lime-silicate glass compared to traditional agents like boric or adipic acid.
• Minimizes alteration of the glass surface, ensuring optical and mechanical properties are preserved for further processing or coating.
• Allows for safer handling and compliance with modern chemical regulations (e.g., avoidance of substances classified as toxic under REACH).
• Prevents glass sheets from sticking together without leaving problematic residues or requiring manual cleaning.
• Offers flexibility as it can be used both as a standalone powder or as an additive to existing polymer-based powders.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to the use of oxygen compounds of aluminium or particulate dust which contains oxygen compounds of aluminium as corrosion protection agent and release agent for soda-lime-silicate glasses in glass storage and during glass transport. The release agents contain release powder based on plastic and oxygen compounds of aluminium as corrosion protection additive having a particle size below that of the particles of the release powder based on plastic.