US 11,104,754 B2 · Asymmetrically substituted bis-alkenyl diphenyl ethers, their preparation and use

Abstract

The present invention relates to compounds according to formula (I) and to heat-curable resin compositions based on polymaleimide resin systems comprising such compounds as co-monomers: wherein R1 signifies an 1-alkenyl- or 2-alkenyl group with 3 to 6 carbon atoms, wherein R2 signifies hydrogen or an alkoxy group with up to 2 carbon atoms, wherein R3 signifies hydrogen or an alkyl group with up to 4 carbon atoms, and wherein R4 signifies hydrogen or an alkyl group with up to 4 carbon atoms. The present invention also relates to crosslinked resins obtainable by curing such compositions. Compounds of the present invention can be used amongst others in fields like structural adhesives, matrix resins for fiber prepregs, moulding compounds, as well as structural and/or electrical composites.

Claims19

Dependent claims

An asymmetrically substituted bis-alkenyl diphenyl ether of formula (I):

wherein R1 is an 1-alkenyl- or 2-alkenyl group with 3 to 6 carbon atoms,
R2 is hydrogen or an alkoxy group with up to 2 carbon atoms,
R3 is hydrogen or an alkyl group with up to 4 carbon atoms, and
R4 is hydrogen or an alkyl group with up to 4 carbon atoms,
with the proviso that (I) is not a naturally occurring ottomentosa (1-methoxy-4-(1E)-1-propen-1-yl-2-[4-(1E)-1-propen-1-ylphenoxy]-benzene).

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/349,399Filed 27 Oct 2017

Priority

EP 1619884915 Nov 2016

Published

US 2019/0367652 A15 Dec 2019

Granted

31 Aug 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

C07C 43/285
Having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings: having unsaturation outside the six-membered…
C07C 43/263
Having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings: the aromatic rings being non-condensed
C07C 43/275
Having an ether-oxygen atom bound to carbon atoms both belonging to six-membered aromatic rings: having all ether-oxygen atoms bound to carbon…
C08F 222/40
Amides or imides: imides, e.g. cyclic imides

Asymmetrically substituted bis-alkenyl diphenyl ethers, their preparation and use

Life of this patent

Asymmetrically substituted bis-alkenyl diphenyl ethers, their preparation and use

Life of this patent

Abstract

Claims19