Patent · US Active

Curable benzoxazine-based compositions, their preparation and cured products thereof

US8759443B2 · kind B2 · utility

0Cited by

7References

9Claims

0Family size

Assignees

Henkel AG & Co. KGaA · DE
HENKEL IP & HOLDING GMBH · DE

Inventors

Andreas Taden · Goldkronach, DE
Stefan Kreilling · Goldkronach, DE
Rainer Schoenfeld · Goldkronach, DE
Stanley L. Lehmann · Martinez, US

Key dates

Filing date	Apr 23, 2010
Grant date	Jun 24, 2014
Priority date	—
Expiry date	Apr 23, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L79/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a curable composition comprising: at least one benzoxazine and at least one toughening additive which can be bound to the at least one benzoxazine in the curing process, characterized in that the toughening additive is distributed in the cured composition in form of discrete domains, and that at least 50% of the discrete domains related to the total amount of discrete domains have a maximum length in any direction of space in the range of 10 nm to 500 nm as determined by transmission electron microscopy (TEM).

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