Solvent-free, self-polishing polyurethane matrix for use in solvent-free antifoulings

Patent metadata

Field	Value
Publication number	US-9404018-B2
Application number	US-201514887407-A
Country	US
Kind code	B2
Filing date	Oct 20, 2015
Priority date	Jul 14, 2005
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A polyol having the formula Si(O—R 1 —OH) m (O—R 2 ) n R 3 . Each R 1 is a divalent radical derived from diethylene glycol, triethylene glycol, dipropylene glycol, or tripropylene glycol, each R 2 is an aliphatic group, and R 3 is an alkyl group or aromatic group. The value m is 2 or 3 and n is 0 or 1. A process of making the above polyol by: providing a reactant having the formula Si(O—R 2 ) 3 R 3 , and reacting the reactant with a diol having the formula HO—R 1 —OH. An antifouling coating comprising a thermoset formed by reacting a polyisocyanate with the above polyol. The coating is not a foam.

First claim

What is claimed is:

1. An antifouling coating comprising:
a thermoset formed by reacting a polyisocyanate with a polyol, wherein the polyol has the formula Si(O—R 1 —OH) m (O—R 2 ) n R 3 , wherein each R 1 is a divalent radical independently selected from the group consisting of diethylene glycol, triethylene glycol, dipropylene glycol, and tripropylene glycol,
wherein m is 2 or 3,
each R 2 is an aliphatic group,
n is 0 or 1, and
each R 3 is an alkyl group or aromatic group, and
wherein the antifouling coating is not a foam.

2. The antifouling coating of claim 1 , wherein n is 1, m is 2, and wherein R 2 is ethyl.

3. The antifouling coating of claim 1 , wherein R 3 is phenyl.

4. The antifouling coating of claim 1 , wherein the polyisocyanate is selected from the group consisting of aliphatic polyisocyanates, aromatic polyisocyanates, adducts of aliphatic polyisocyanates, adducts of aromatic polyisocyanates, prepolymers of aliphatic polyisocyanates, prepolymers of aromatic polyisocyanates, and combinations thereof.

5. The antifouling coating of claim 1 , further comprising: a compound selected from the group consisting of biocide, algaecide, barniclecide, biologically active compound, biological repellant, and combinations thereof.

6. A polyol having the formula reactant having the formula Si Si(O—R 1 —OH) m (O—R 2 ) n R 3 , each R 1 is a divalent radical independently selected from the group consisting of diethylene glycol, triethylene glycol, dipropylene glycol, and tripropylene glycol, wherein m is 2 or 3, R 2 is an aliphatic group, n is 0 or 1, and R 3 is an alkyl group or aromatic group.

7. The polyol of claim 6 , wherein n is 1, m is 2, and R 2 is ethyl.

8. The polyol of claim 6 , wherein R 3 is phenyl.

9. A process of making a polyol comprising:
providing a reactant having the formula Si(O—R 2 ) 3 R 3 , wherein each R 2 is an aliphatic group and R 3 is an alkyl group or aromatic group; and
reacting the reactant with a diol having the formula HO—R 1 —OH to form a polyol having the formula Si(O—R 1 —OH) m (O—R 2 ) n R 3 , wherein m is 2 or 3,
n is 0 or 1,
and each R 1 is a divalent radical independently selected from the group consisting of diethylene glycol, triethylene glycol, dipropylene glycol, and tripropylene glycol.

10. The process of claim 9 , wherein n is 1, m is 2, and R 2 is ethyl.

11. The process of claim 9 , wherein R 3 is phenyl.

Assignees

• Us Navy

Inventors

• Verborgt Jozef
• Webb Arthur A

Classifications

• C09D5/1675 Primary

  Polyorganosiloxane-containing compositions · CPC title

• C07F7/1836

  Chemistry & Metallurgy · mapped topic

• C09D175/04 Primary

  Polyurethanes · CPC title

• C08K5/0058

  Biocides; (macromolecular substances as carriers for biocide material A01N25/10) · CPC title

• C08K3/005

  Chemistry & Metallurgy · mapped topic