US 10,414,867 B2 · Fluoroether unit-based thermostable, low-Tg and thermosetting cross-linked materials

Abstract

The present invention relates to a cross-linkable composition comprising: i) a fluorinated α,ω-bis(propargyl) oligomer of formula (I): in which m is 1 to 100, e.g. 1 to 93, n is 2 to 150, e.g. 1 to 128, p is 0 to 2, preferably 0 or 1.75, and n, m and p are selected such that the fluorinated α,ω-bis(propargyl) oligomer of formula (I) has a number average molar mass Mn of 400 to 25000; ii) a cross-linking agent comprising at least three azide-N3 groups; and iii) optionally, a fluorinated oligomer comprising two terminal azide-N3 or fluorinated α,ω-bis(azide) oligomer groups. The invention also relates to a material comprising the click chemistry reaction product of the cross-linkable composition of the invention, to a method for preparing said material and to the uses thereof.

Claims14

Dependent claims

A cross-linkable composition, comprising:

i) a fluorinated α,ω-bis(propargyl) oligomer of formula (I):
wherein
m is 1 to 100,
n is 2 to 150, and
p is 0 to 2,
n, m and p being selected such that the fluorinated α,ω-bis(propargyl) oligomer of formula (I) has a number-average molar mass (Mn) of 400 to 25000 as measured by 19F NMR spectroscopy;
ii) a cross-linking agent of formula (III):
wherein
R3 is a hydrogen atom, a C1-C6 aliphatic group, or an aromatic group,
Y is a group selected from H, OH, an aromatic group, a C1-C6 aliphatic group, or an O(CH2)sP(O)(OR4)2 group,
s an integer from 2 to 20,
R4 being H or a C1-C6 aliphatic group;
and
iii) optionally, a fluorinated oligomer comprising two terminal azide (—N3) groups.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/741,048Filed 1 Jul 2016

Priority

FR 15 562081 Jul 2015

Published

US 2018/0186934 A15 Jul 2018

Granted

17 Sep 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

C08G 73/08
Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule: polyhydrazides; Polytriazoles;…
C07C 41/30
By reactions not forming ether-oxygen bonds: by increasing the number of carbon atoms, e.g. by oligomerisation
C07C 247/04
With azido groups bound to acyclic carbon atoms of a carbon skeleton: being saturated
C08G 65/007
Containing halogens: containing fluorine

Fluoroether unit-based thermostable, low-Tg and thermosetting cross-linked materials

Life of this patent

Fluoroether unit-based thermostable, low-Tg and thermosetting cross-linked materials

Life of this patent

Abstract

Claims14