Granted Patent B2

US 12,539,649 · App. 18/238,608 · Granted Feb 3, 2026

Inventor: Matthew Kent Springer (Elbert, CO)

Assignee: MSI Coatings, Inc.

B29C35/0805B29C37/0067B29C70/06B29C73/02B32B3/12B32B7/12B32B15/10B32B15/20B32B21/042B32B21/06B32B21/14C08J3/24C08J3/28C08J5/04C09D5/18C09D133/08B05D3/067B05D5/00B29C2035/0827B29C37/02B29K2105/06B29K2309/08B29L2031/3097B32B2250/02B32B2255/08B32B2255/26B32B2262/101B32B2262/106B32B2307/3065B32B2603/00B32B2605/08B32B2605/12B32B2605/18

Abstract

Claims (49)

1 . A method of repairing at least a portion of a damaged pipe, comprising:

preparing at least a portion of the damaged pipe for repair;

arranging a composite material that is substantially saturated with a VOC free low radiant flux UV curable composition on at least a portion of the damaged pipe;

applying an energy source having a wavelength in a range from 360 nm to 420 nm and a radiant flux at a surface of the substantially saturated composite material of 100 mW/cm 2 or less to cure at least a portion of the substantially saturated composite material,

wherein the VOC free low radiant flux UV curable composition comprises:

an acrylate monomers/oligomers;

a thiol monomers/oligomers;

a photo initiator; and

a radical inhibitor.

2 . The method of claim 1 , wherein the wavelength is 390 nm.

3 . The method of claim 1 , wherein the radiant flux at the surface of the substantially saturated composite material is 50 mW/cm 2 or less.

4 . The method of claim 1 , wherein the radiant flux at the surface of the substantially saturated composite material is 25 mW/cm 2 or less.

5 . The method of claim 1 , wherein the radiant flux at the surface of the substantially saturated composite material is 10 mW/cm 2 or less.

6 . The method of claim 1 , wherein the radiant flux at the surface of the substantially saturated composite material is 5 mW/cm 2 or less.

7 . The method of claim 1 , wherein the radiant flux at the surface of the substantially saturated composite material is provided in a roll.

8 . The method of claim 1 , wherein the substantially saturated composite material is provided as a patch having one or more layers.

9 . The method of claim 1 , wherein the substantially saturated composite material is provided as a pre-impregnated composite material.

10 . The method of claim 9 , wherein the pre-impregnated composite material comprises one or more layers of a composite material.

11 . The method of claim 10 , wherein the composite material comprises one or more of a fiberglass material, cellulose fiber material, carbon fiber material, polymer fiber material, metallic fiber material, silicon carbide fiber material, and mineral fiber material.

12 . The method of claim 10 , wherein the composite material comprises a fiberglass material.

13 . The method of claim 10 , wherein the arranging of the composite material that is substantially saturated with a VOC free low radiant flux UV curable composition on at

least a portion of the damaged pipe is arranged on an interior or exterior surface of the damaged pipe.

14 . The method of claim 1 , wherein the VOC free low radiant flux UV curable composition comprises at least ninety-five (95%) percent solids.

15 . The method of claim 1 , wherein the VOC free low radiant flux UV curable composition comprises at least ninety-six (96%) percent solids.

16 . The method of claim 1 , wherein the VOC free low radiant flux UV curable composition comprises at least ninety-seven (97%) percent solids.

17 . The method of claim 1 , wherein the VOC free low radiant flux UV curable composition comprises at least ninety-eight (98%) percent solids.

18 . A method of repairing at least a portion of a damaged pipe, comprising:

preparing a portion of the pipe for repair;

applying a VOC free low radiant flux UV curable composition to a composite material to substantially saturate the composite material, wherein the composite material has internal surface, an external surface, a first end, a second end separated from the first end, and a lumen that extends from the first end to the second end;

arranging an inflatable member in the lumen of the saturated composite material;

inflating a portion of the inflatable member to expand the statured composite material to be at least substantially adjacent to an interior surface of the pipe;

applying an energy source having a wavelength in a range from 360 nm to 420 nm and a radiant flux at a surface of the saturated composite material of 100 mW/cm 2 or less to at least partially cure the saturated composite material;

wherein the VOC free low radiant flux UV curable composition comprises:

an acrylate monomers/oligomers;

a thiol monomers/oligomers;

a photo initiator; and

a radical inhibitor.

19 . The method of claim 18 , wherein the composite material comprises one or more of a fiberglass material, cellulose fiber material, carbon fiber material, polymer fiber material, metallic fiber material, silicon carbide fiber material, and mineral fiber material.

20 . A method of repairing at least a portion of a damaged pipe, comprising:

preparing a portion of the pipe for repair;

applying a VOC free low radiant flux UV curable composition to a composite material to substantially saturate the composite material, wherein the composite material has internal surface, an external surface, a first end, a second end separated from the first end, and a lumen that extends from the first end to the second end;

arranging a portion of the statured composite material to be at least substantially adjacent to an interior surface of the pipe;

applying an energy source having a wavelength in a range from 360 nm to about 420 nm and a radiant flux at a surface of the saturated composite material of 100 mW/cm 2 or less to at least partially cure the saturated composite material,

wherein the VOC free low radiant flux UV curable composition comprises:

an acrylate monomers/oligomers;

a thiol monomers/oligomers;

a photo initiator; and

a radical inhibitor.

21 . The method of claim 20 , wherein the composite material comprises one or more of a fiberglass material, cellulose fiber material, carbon fiber material, polymer fiber material, metallic fiber material, silicon carbide fiber material, and mineral fiber material.

Continuity (8)

References Cited (192)