Coating compositions comprising conductive fillers

Patent metadata

Field	Value
Publication number	US-2016130448-A1
Application number	US-201414897357-A
Country	US
Kind code	A1
Filing date	May 28, 2014
Priority date	Jun 10, 2013
Publication date	May 12, 2016
Grant date	—

Abstract

A method for making a coating or sealing composition comprising incorporating organic filler(s) comprising at least 20 wt % of at least one organic polymer and at least one ionic liquid into a coating or sealing composition

First claim

1 . A method for making a coating or sealing composition comprising:
incorporating organic filler(s) comprising at least 20 wt % of at least one organic polymer and at least one ionic liquid into a coating or sealing composition.

2 . The method according to claim 1 , wherein the organic polymer comprises polyamide or polyurethane.

3 . The method according to claim 1 , wherein the cation of the ionic liquid comprises a quaternary ammonium cation or a cation having a heterocyclic ring system with delocalized positive charge or with a localized positive charge on one of the ring atoms.

4 . The method according to claim 1 , wherein the ionic liquid is an imidazolium salt of formula I:

in which
R1 is an organic radical having 1 to 20 C atoms,
R2, R4, R3, and R5 are each an H atom or an organic radical having 1 to 20 C atoms,
X is an anion, and
n is 1, 2, or 3.

5 . The method according to claim 1 , wherein the anion of the ionic liquid is thiocyanate or dicyandiamide.

6 . The method according to claim 1 , wherein the fillers comprise 1 to 20 wt % of ionic liquid, based on the total weight of the fillers.

7 . The method according to claim 1 , wherein the fillers comprise powders.

8 . The method according to claim 1 , wherein the fillers comprise a powder having a particle size distribution with a d 50 of 5 to 500 μm.

9 . The method according to claim 1 , wherein the filler is obtained by milling the polymer to a powder and subsequently treating the powder with ionic liquid.

10 . A coating or sealing composition comprising organic fillers according to claim 1 .

11 . A coating or sealing composition comprising at least 0.1 wt % of the organic fillers according to claim 1 , based on the total weight of all constituents of the coating composition except for water and organic solvents.

12 . The coating composition according to claim 10 , being an adhesive, paint, varnish, paper-coating composition, or floor-coating composition.

13 . An article coated with a coating composition according to claim 10 .

14 . A floor-coating composition comprising 5 to 40 wt % of the organic fillers according to claim 1 , based on the total weight of all constituents of the floor = coating composition except for water and organic solvents.

15 . A floor coating obtainable with a floor = coating composition according to claim 14 .

16 . The floor coating according to claim 15 , with coat thicknesses from 1 mm to 30 mm.

Assignees

• Basf Se

Inventors

• Eichfelder Andreas
• Brand Fabien Jean
• Krausche Christian
• Szarvas Laszlo

Classifications

• C09D5/34

  Filling pastes (materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12) · CPC title

• C09D5/24 Primary

  Electrically-conducting paints {(conductive materials H01B1/00)} · CPC title

• D21H21/14

  characterised by function or properties in or on the paper (D21H19/66, D21H27/02 take precedence) · CPC title

• C09D5/00

  Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes · CPC title

• C09D7/63

  organic · CPC title