Arthur Pelham Webb

US Patent:

20160040034, Feb 11, 2016

Filed:

Oct 20, 2015

Appl. No.:

14/887407

Inventors:

- Washington DC, US
Arthur A. Webb - Bethesda MD, US

International Classification:

C09D 175/04
C07F 7/18

Abstract:

A polyol having the formula Si(O—R—OH)(O—R)R. Each Ris a divalent radical derived from diethylene glycol, triethylene glycol, dipropylene glycol, or tripropylene glycol, each Ris an aliphatic group, and Ris 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)R, and reacting the reactant with a diol having the formula HO—R—OH. An antifouling coating comprising a thermoset formed by reacting a polyisocyanate with the above polyol. The coating is not a foam.

US Patent:

20140272437, Sep 18, 2014

Filed:

Feb 26, 2014

Appl. No.:

14/190448

Inventors:

Arthur A. Webb - Bethesda MD, US
Jozef Verborgt - Dunedin FL, US

Assignee:

The Government of the United States of America, as represented by the Secretary of the Navy - Arlington VA

International Classification:

C09D 175/02

US Classification:

428447, 524588, 427341

Abstract:

The compound below.Ris an alkyl group or —(SiR—O)—R. Ris an alkoxy group. The value m is a nonnegative integer. Ris an alkyl group orRand Rare organic groups. Ris an aliphatic group or a residue of a homopolymer of an aliphatic polyisocyanate. Rhas an electron withdrawing group that is bound to a carbon atom that is bound to the CHRgroup. The value n is an integer greater than or equal to 2.A method of: reacting a 3-trialkoxysilylpropyl amine with an organic compound having a carbon-carbon double bond activated by an electron withdrawing group to form a secondary amino propylalkoxysilane, and reacting the secondary amino propylalkoxysilane with an aliphatic polyisocyanate or a polymer thereof.

US Patent:

20140275407, Sep 18, 2014

Filed:

Mar 15, 2013

Appl. No.:

13/832126

Inventors:

Arthur A Webb - Bethesda MD, US
Jozef Verborgt - Dunedin FL, US
Keith E Lucas - Upper Marlboro MD, US

Assignee:

The Government of the United States of America, as represented by the Secretary of the Navy - Washington DC

International Classification:

C08G 18/38
C09D 175/02

US Classification:

524590, 528 84, 560169

Abstract:

A composition having a polyurea made by reacting a polyisocyanate with one of the below compounds. The value x is 2 or 3. A method of: providing a polyisocyanate and one of the below compounds, spraying the polyisocyanate and the compound with a plural component pump onto a surface to form a mixture, and allowing the mixture to cure to a polyurea.

US Patent:

20140249273, Sep 4, 2014

Filed:

Feb 26, 2014

Appl. No.:

14/190446

Inventors:

Arthur A. Webb - Bethesda MD, US
Jozef Verborgt - Dunedin FL, US

Assignee:

The Government of the United States of America, as represented by the Secretary of the Navy - Arlington VA

International Classification:

C09D 183/00

US Classification:

524868, 556421, 544222, 524858, 548951, 556417, 427387

Abstract:

The below compound, which may be made by reacting a 3-trialkoxysilylpropyl amine with an acrylic acid ester, a methacrylic acid ester, a diester of maleic acid, a diester of fumaric acid, or acrylonitrile to form a secondary amino propylalkoxysilane, and reacting the secondary amino propylalkoxysilane with an isocyanate. Ris an alkyl group, X is —CHR—CHR—CO—O—Ror —CH—CH—CN, Ris an organic group, Ris —H or —CO—O—R, Ris —H or —CH, but Ris —H if Ris —CO—O—R, Ris an aliphatic group or a residue of hexamethylene diisocyanate cyclic trimer or hexamethylene diisocyanate cyclic dimer, and n is 2 or 3.The below compound, which may be made by reacting a 3-trialkoxysilylpropyl amine with acrylonitrile. Ris an alkyl group.