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US 2020/0270478 A1Published application
Polycarbodiimide-containing compositions, methods, and articles
Assignee3M Innovative Properties Company
InventorsChen Lin, Chetan P. Jariwala, Jitendra S. Rathore
Life of this patent
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Abstract
Polycarbodiimide-containing compositions, methods of using such compositions (e.g., to treat fibrous substrates), and articles treated with such compositions, wherein the compositions include a polycarbodiimide and a silicon-containing compound selected from cyclic siloxanes, silsesquioxane (SSQ) polymers, or mixtures thereof.
Claims20
A treating composition comprising:
- a polycarbodiimide;
- and
- a silicon-containing compound selected from a cyclic siloxane compound, a silsesquioxane polymer, and a mixture thereof;
- wherein the cyclic siloxane compound is of Formula (I):
- wherein:
- each R1 and R2 is independently a (C1-C4)alkyl;
- each L1 and L2 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof;
- each R3 is independently a linear (C14-C100)alkyl;
- each R4 is independently a (C1-C30)alkyl, a (C2-C30)heteroalkyl having at least one oxygen, sulfur, or —NH— group, or a (C1-C30)alkyl substituted with a fluoro, thiol, isocyanato, cyanato, hydroxyl, glycidoxy, or epoxy group;
- with the proviso that L1, L2, and R4 are selected such that each Si atom is directly bonded to an alkylene or an alkyl (other than R1 and R2);
- m is an integer of at least 2;
- n is an integer of 0 or above;
- m+n is an integer of at least 3;
- and
- the cyclic siloxane compound is a solid at 25° C.;
- and
- wherein the silsesquioxane polymer comprises a three-dimensional network of Formula
- wherein:
- each R1 and R2 is independently a (C1-C4)alkyl;
- each L1 and L2 is independently a single bond, an alkylene, or an alkylene bonded to a group selected from oxy, thio, carbonyl, —NH—, and combinations thereof;
- each R3 is independently a linear (C14-C100)alkyl;
- each R4 is independently a (C1-C30)alkyl, a (C2-C30)heteroalkyl having at least one oxygen, sulfur, or —NH— group, or a (C1-C30)alkyl substituted with a fluoro, thiol, isocyanato, cyanato, hydroxyl, glycidoxy, or epoxy group;
- with the proviso that L1, L2, and R4 are selected such that each Si atom is directly bonded to an alkylene or an alkyl;
- m is an integer of at least 2;
- n is an integer of 0 or above;
- m+n is an integer of at least 3;
- each oxygen atom at an asterisk (*) is bonded to another Si atom within the three-dimensional network;
- and
- the silsesquioxane polymer is a solid at 25° C.
26 more elements
Dependencies are inferred from the claim text.