Patent · US Active

Isocyanate-epoxy-foam system

US10907021B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignee

BASF SE

Inventors

Frank Prissok · Bohmte, DE
Andre Kamm · Bohmte, DE
Michael Harms · Bohmte, DE

Key dates

Filing date	Jul 25, 2014
Grant date	Feb 2, 2021
Priority date	—
Expiry date	Jan 30, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2463/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a method for producing a rigid foam, which comprises reacting at least one polyisocyanate with a mixture comprising at least one polyepoxide, water, and at least one other hydrogen-acidic compound, the reaction taking place in the presence of a metal-free Lewis base having at least one nitrogen atom, to rigid foams obtainable by such a method, and to the use of a rigid foam of the invention for producing insulating materials, vacuum insulation panels, refrigeration equipment, construction elements, wind rotor blades, or elements for boatbuilding and vehicle construction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.