Multifunctional sulfur-containing polymers, compositions thereof and methods of use
AssigneePRC-DeSoto International, Inc.
InventorsSteven J. Hobbs, Gregory J. McCollum, Juexiao Cai, Marfi Ito, Lawrence G. Anderson, Renhe Lin
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Abstract
Disclosed are multifunctional sulfur-containing polymers that are the reaction products of a sulfur-containing diol, a polyol containing at least three hydroxyl groups per polyol molecule, and an aldehyde, a ketone, or a combination thereof. Sealant compositions comprising the multifunctional sulfur-containing polymers are also disclosed.
Claims20
A sulfur-containing polymer of Formula (I):
- wherein:
- each n is an integer selected from 1 to 50;
- m is an integer selected from 3 to 6;
- each p is 1;
- each R1 is ethane-1,2-diyl;
- each R3 is hydrogen;
- and
- Z represents the core of an m-valent parent polyol Z(OH)m.
A terminal-modified sulfur-containing polymer comprising the reaction products of reactants comprising:
- (a) a sulfur-containing polymer of Formula (I);
- wherein:
- each n is an integer selected from 2 to 40;
- m is an integer selected from 3 to 6;
- each p is 1;
- each R1 is ethane-1,2-diyl;
- each R3 is hydrogen;
- and
- Z represents the core of an m-valent parent polyol Z(OH)m;
- and
- (b) a compound selected from:
- a compound comprising a vinyl group and a group that is reactive with the hydroxyl groups of the polymer of Formula (I);
- a compound comprising a silyl group and a group that is reactive with the hydroxyl groups of the polymer of Formula (I);
- a compound comprising an epoxy group and a group that is reactive with the hydroxyl groups of the polymer of Formula (I);
- a compound comprising an isocyanate group and a group that is reactive with the hydroxyl groups of the polymer of Formula (I);
- a compound comprising an amine group and a group selected from a group that is reactive with an isocyanate group, a group that is reactive with an ethylenically unsaturated group, and a group that is reactive with a tosylate;
- and
- a compound selected from a mercaptoalkanol, a metal hydrosulfide, and a dithiol.
A terminal-modified sulfur-containing polymer of Formula (II):
- wherein:
- each n is an integer selected from 1 to 50;
- m is an integer selected from 3 to 6;
- each p is 1;
- each R1 is ethane-1,2-diyl;
- each R3 is hydrogen;
- each R5 is independently selected from a vinyl-terminated group, a silyl-terminated group, an amine-terminated group, an epoxy-terminated group, a thiol-terminated group, and an isocyanate-terminated group;
- and
- Z represents the core of an m-valent parent polyol Z(OH)m.
Dependencies are inferred from the claim text.