US 10,647,859 B2 · Two-component putty, method for coating a substrate with such putty, substrates coated with such putty

Abstract

The present invention relates to a two-component putty comprising (1) a base component and (2) a curing component, wherein the base component comprises: —castor oil as resin component; and —a further resin component having a hydroxyl number in the range of from 00 to 800 mg KOH/g, wherein the curing component comprises a polyisocyanate, and wherein the two-component putty further comprises hollow microspheres and an organically modified inorganic filler. The present invention also relates to a method for coating a substrate by applying such putty and allowing the applied putty to cure. The invention further relates to a coated substrate obtainable by such method.

Claims18

Dependent claims

A two-component putty comprising (1) a base component and (2) a curing component,

wherein the base component comprises:
castor oil as resin component;
and
a further resin component having a hydroxyl number in the range of from 500 to 800 mg KOH/g,
wherein the curing component comprises a polyisocyanate,
and wherein the two-component putty further comprises hollow microspheres and an organically modified inorganic filler,
wherein the putty comprises
15 to 50 wt % castor oil as resin component;
2 to 25 wt % of the further resin component;
20 to 60 wt % polyisocyanate;
0.5 to 5.0 wt % hollow microspheres;
and
5 to 30 wt % organically modified inorganic filler,
based on the total weight of the putty.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/302,214Filed 30 May 2017

Priority

EP 1617209031 May 2016

Published

US 2019/0292384 A126 Sep 2019

Granted

12 May 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

C09D 5/34
Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced ; Filling pastes: filling…
C08G 18/36
Low-molecular-weight compounds: hydroxylated esters of higher fatty acids
C08G 18/4891
Polyethers: modified with higher fatty oils or their acids or by resin acids
C08G 18/6696
Compounds of group C08G18/48 or C08G18/52: with compounds of group C08G18/36 or hydroxylated esters of higher fatty acids of C08G18/38

Two-component putty, method for coating a substrate with such putty, substrates coated with such putty

Life of this patent

Two-component putty, method for coating a substrate with such putty, substrates coated with such putty

Life of this patent

Abstract

Claims18