Patent · US Active

Process for producing polyisocvanurate plastics having functionalized surfaces

US10752724B2 · kind B2 · utility

0Cited by

35References

17Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Dirk Achten · Leverkusen, DE
Hans-Josef Laas · Odenthal, DE
Dieter Mager · Leverkusen, DE
Mathias Matner · Neuss, DE
Heiko Hocke · Shanghai, CN
Jörg Tillack · Bensberg, DE

Key dates

Filing date	Apr 21, 2016
Grant date	Aug 25, 2020
Priority date	—
Expiry date	Apr 21, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/792
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a process for producing polyisocyanurate plastics having a functionalized surface, comprising the following steps: a) providing a polyisocyanate composition A) containing monomeric and/or oligomeric polyisocyanates; b) catalytically trimerizing the polyisocyanate composition A) so as to obtain a bulk polyisocyanurate material as intermediate; c) surface functionalizing the intermediate by contacting at least one surface of the intermediate with at least one functionalizing reagent D); d) continuing the catalytic trimerization. The invention further relates to a polyisocyanurate plastic having a functionalized surface obtainable from the process of the invention.

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