# US 10,440,956 B2 · Pipe fitting adhesive compound with vegetation deterring properties

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- Number: US 10,440,956 B2
- Document ID: US10440956B2
- Status: Granted
- Kind: B2
- Application number: 14/938,522
- Filed: 2015-11-11
- Published: 2016-05-12
- Granted: 2019-10-15
- Earliest claimed: 2014-11-12
- Assignees: T. Christy Enterprises, Inc.
- Applicants: T. Christy Enterprises, Inc.
- Inventors: Laura L. Poston
- Web page: https://patentgrep.com/patent/US10440956B2

## CPC

- A01N 59/16: Heavy metals; Compounds thereof
- A01N 59/20: Copper
- C09J 9/00: Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks (C09J7/00 takes precedence)
- C09J 11/04: inorganic
- C09J 121/00: Adhesives based on unspecified rubbers
- F16L 1/11: for the detection or protection of pipes in the ground
- F16L 57/00: Protection of pipes or objects of similar shape against external or internal damage or wear ({protection under water F16L1/123;} supporting of pipes inside other pipes or sleeves F16L7/00; used in connection with end fittings of hoses F16L35/00; protection of pipes or pipe fittings against corrosion or incrustation F16L58/00; protection thereof during transport B65D59/00)
- F16L 58/1054: {the coating being placed outside the pipe}
- C08K 3/015: Biocides (macromolecular substances as carriers for biocide material A01N25/10)
- C08K 3/08: Metals
- C08K 3/22: of metals
- C08K 3/30: Sulfur-, selenium- or tellurium-containing compounds
- C08K 2003/0862: {Nickel}
- C08K 2003/0893: {Zinc}
- C08K 2003/2248: {of copper}
- C08K 2003/3045: {Sulfates}
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)

## Abstract

An adhesive used in underground applications where vegetation is present wherein the adhesive has been doped with a material or materials that deter the growth properties of adjacent vegetation. The materials can include Zinc, Copper Sulfate, Copper Oxide, as well as sulfates of Zinc, Manganese, and Nickel, in quantities that will repel or deter the advancement of roots and invasive vegetation into fittings and joints in an underground system. The adhesive is used to bond a conduit and a fitting in an air-tight and water tight seal, and the inclusion of the root deterrent material resists invasion of nearby roots into the piping. The root deterring supplements to the adhesive to not degrade the performance of the adhesive and actually repel roots in the vicinity of the materials.

## Claims

### Claim 1

An adhesive compound comprising:
a base adhesive comprising unvulcanized rubber in a solvent selected from hexane and heptane, and a secondary constituent selected from isopropanol and ethanol; and
an additive including nickel and zinc incorporated into the base adhesive to form a compound, the additive selected for its vegetation deterring properties;
wherein the additive to base adhesive is in the range of 0.0025:1 to 0.06:1.

### Claim 2 (depends on 1)

The adhesive of claim 1, wherein the additive includes manganese.

### Claim 3 (depends on 1)

The adhesive of claim 1, wherein the additive includes copper sulfate.

### Claim 4 (depends on 1)

The adhesive of claim 1, wherein the additive includes copper oxide.