Zweikomponenten-klebesystem-komponente und Zweikomponentenklebesystem sowie Verwendung

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

This patent describes a two-component adhesive system using a bio-based component derived from lignin or tannins, materials sourced from renewable plant resources. The key innovation lies in oxidizing lignin or tannins to produce reactive quinone groups (conjugated dicarbonyls) that serve as one of the adhesive components. When mixed with a second component containing nucleophilic hardeners (like polythiols or polyamines), these react to form strong, covalent networks, making the adhesive suitable under demanding conditions such as underwater or high-salinity environments. This approach allows the creation of sustainable, high-performance adhesives suitable for a broad range of applications.

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

• Marine adhesives capable of curing and bonding underwater, such as for ship hull repairs or underwater construction.
• Eco-friendly adhesives for coral reef restoration and repair in marine biology and environmental projects.
• Bonding materials such as concrete, stone, ceramics, glass, metals, and plastics in construction and industrial applications.
• Coatings and sealants for protective or technical surfaces, including those exposed to moisture or saltwater.
• Assembly of technical polymers and composite materials.
• Adhesives for packaging, manufacturing, or maintenance involving PET, PP, PE, PU, and polyamides.
• General-purpose adhesives with high sustainability requirements for eco-conscious industries.

BenefitsContent extracted from patent full text and abstract with AI.

• Made from renewable, bio-based sources (lignin, tannins), contributing to sustainability and reduced reliance on petrochemicals.
• Can function effectively in both dry and challenging wet or saltwater environments, expanding its utility beyond typical adhesives.
• Demonstrates strong bonding on a wide range of substrates, including metals, minerals, ceramics, glass, and various plastics.
• Compatible with marine biological environments, making it suitable for eco-sensitive applications such as coral repair.
• The preparation process is straightforward and scalable, allowing for cost-effective large-scale manufacturing.
• Allows for customization and tuning of adhesive properties by adjusting the ratio or type of components.
• Exhibits good chemical resistance and mechanical performance comparable to conventional synthetic adhesives.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a two-component-adhesive-system component A and is characterised in that the two-component-adhesive-system component A comprises bio-based conjugated dicarbonyls as reactive components, wherein the bio-based conjugated dicarbonyls are an oxidation product of lignin or highly oxidised lignin and/or tannins, and the bio-based conjugated dicarbonyls are in the form of reactive quinone groups. The invention also relates to a two-component adhesive system having the two-component-adhesive-system component A and a two-component-adhesive-system component B, and to an associated use.