Patent · US Active

Method for producing a polyisocyanurate composite material

US11236191B2 · kind B2 · utility

0Cited by

15References

19Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Heiko Hocke · Shanghai, CN
Mathias Matner · Neuss, DE
Dirk Achten · Leverkusen, DE
Paul Heinz · Forchheim, DE

Key dates

Filing date	May 3, 2017
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Jun 19, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K3/013
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a method for producing a polyisocyanurate composite material, comprising the following steps: a) providing a polyisocyanate composition A) which contains monomer polyisocyanates at an amount of at least 2 wt. %, and b) catalytically trimerising the polyisocyanate composition A) in the presence of at least one fibrous filler material B) and a trimerisation catalyst C), to form the polyisocyanurate composite material, said trimerisation catalyst C) comprising at least one quaternary ammonium salt and/or a metal salt. The invention also relates to polyisocyanurate composite materials that can be obtained according to the claimed method, and to the use of same to produce a component and components consisting of or containing a claimed polyisocyanurate composite material.

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