Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

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

Patent image
NRL

A polyol having the formula X(O—R1—OH)m(O—R2)nHq. X is Si, C, B, Ti, P, Al, Mg, or Ca. Each R1 is derived from dipropylene glycol or tripropylene glycol, and each R2 is an aliphatic group. m is 2, 3, or 4; n is 0, 1, or 2; and q is 1 or 2 when X is C, and is 0 when X is not C. A thermoset formed by reacting a polyisocyanate with the polyol. An antifouling coating containing the thermoset and optionally a biocide. An antifouling coating that is not foam formed by reacting Si(O—R1—OH)m(O—R2)nR3 with a polyisocyanate. Each R3 is an alkyl group or aromatic group.

Inventors: 
Verborgt, Jozef; Webb, Arthur A.
Patent Number: 
Technical domain: 
Materials and Coatings
FIle Date: 
2005-07-14
Grant Date: 
2015-11-24
Grant time: 
3,785 days
Grant time percentile rank: 
68
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY