# US 10,246,838 B1 · High impact joint and crack fillers

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- Number: US 10,246,838 B1
- Document ID: US10246838B1
- Status: Granted
- Kind: B1
- Application number: 16/009,077
- Filed: 2018-06-14
- Granted: 2019-04-02
- Earliest claimed: 2018-06-14
- Applicants: James L Andrews; Anthony Gaffney
- Inventors: James L Andrews; Anthony Gaffney
- Web page: https://patentgrep.com/patent/US10246838B1

## CPC

- E01C 23/0966: {for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving (E01C23/096, E01C23/0993 take precedence)}
- C08G 59/063: {with epihalohydrins}
- C08G 59/50: Amines
- C08G 59/502: {Polyalkylene polyamines}
- C08G 59/621: {Phenols}
- C08K 3/04: Carbon
- C08K 3/22: of metals
- C08L 17/00: Compositions of reclaimed rubber
- C08L 19/003: {Precrosslinked rubber; Scrap rubber; Used vulcanised rubber}
- C08L 63/00: Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- E01C 11/005: {Methods or materials for repairing pavings (E01C7/35 takes precedence; for concrete coverings E01C7/147; for bituminous coverings E01C7/187; devices for repair works E01C23/06; repairing bridge floorings E01D22/00)}
- E01C 11/10: Packing of plastic or elastic materials {, e.g. wood, resin (E01C11/045 takes precedence)}
- E01C 11/103: {Joints with packings prepared only in situ; Materials therefor}
- C08G 2190/00: Compositions for sealing or packing joints
- C08K 2003/2241: {Titanium dioxide}
- C08K 2003/2272: {Ferric oxide (Fe2O3)}
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

A joint and crack filler composition may include a rubber aggregate and a binder made of a resin and a hardener. The rubber aggregate may be made from recycled tire rubber and may include a tri-blend of large shreds, small shreds, and fine pieces. The resin may be an epoxy, such as a semi-rigid liquid epoxy or a semi-rigid thixotropic epoxy.

## Claims

### Claim 1

A joint and crack filler composition comprising:
a rubber aggregate comprising a tri-blend aggregate comprising a mixture of large shreds of rubber, small shreds of rubber, and fine pieces of rubber; and
a binder comprising a resin and a hardener,
wherein:
the large shreds of rubber have a length of from about ½ to about ¾ inch and a width of about 1/16 inch;
the small shreds of rubber have a length of from about ⅛ to about ¼ inch and a width of about 1/16 inch; and
the fine pieces have a US sieve size of from about 60 to 120.

### Claim 2 (depends on 1)

The joint and crack filler composition of claim 1, wherein the rubber aggregate comprises:
about 45% large shreds;
about 35% small shreds; and
about 20% fine pieces.

### Claim 3 (depends on 1)

The joint and crack filler composition of claim 1, wherein the rubber aggregate comprises recycled tire rubber.

### Claim 4 (depends on 1)

The joint and crack filler composition of claim 1, wherein a volume ratio of resin to hardener is about 2 to 1.

### Claim 5 (depends on 1)

The joint and crack filler composition of claim 1, wherein the resin is an epoxy selected from the group consisting of a semi-rigid liquid epoxy and a semi-rigid thixotropic epoxy.

### Claim 6 (depends on 1)

The joint and crack filler composition of claim 1, wherein the hardener comprises a mixture of polyoxypropylenediamine, nonylphenol, methylpent amethylenediamine, benzyl alcohol, and epoxy polyamine.