Composite material and adhesive bonding material having the composite material

US10759975B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Jörg Schuhmacher · Kornwestheim, DE
• Philipp Treis · Mainz, DE
• Jochen Drewke · Mainz, DE
• Hans-Joachim Schmitt · Ockenheim, DE
• Martun Hovhannisyan · Mainz, DE
• Friedrich Siebers · Nierstein, DE
• Yvonne Menke-Berg · Wiesbaden, DE

Key dates

• Filing date: Dec 4, 2018
• Grant date: Sep 1, 2020
• Expiry date: Dec 4, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2201/003
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A composite material is provided that includes at least one first material and particles. The particles have a negative coefficient of thermal expansion and the particles have a sphericity Ψ of at least 0.7. The composite material includes at least 30 vol % of the particles at a particle size of d50≤1.0 μm or at least 40 vol % of the composite material at a particle size d50>1.0 μm.