# US 10,767,077 B2 · Load-bearing member surface treatment

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,767,077 B2
- Document ID: US10767077B2
- Status: Granted
- Kind: B2
- Application number: 15/419,537
- Filed: 2017-01-30
- Published: 2018-08-02
- Granted: 2020-09-08
- Earliest claimed: 2017-01-30
- Assignees: Otis Elevator Company
- Applicants: Otis Elevator Company
- Inventors: Chen Qian Zhao
- Web page: https://patentgrep.com/patent/US10767077B2

## CPC

- B66B 7/1284: {specially adapted for ropes or cables}
- B05D 3/12: by mechanical means
- B05D 7/50: {Multilayers}
- B08B 3/08: the liquid having chemical or dissolving effect
- C09D 7/45: Anti-settling agents
- C09D 7/61: inorganic
- C09D 9/04: with surface-active agents
- C09D 175/04: Polyurethanes
- C11D 3/2041: {Dihydric alcohols}
- C11D 3/2065: {Polyhydric alcohols}
- C11D 3/2068: {Ethers}
- C11D 3/37: Polymers {(polymeric surface-active agents C11D1/008; polysaccharides C11D3/222)}
- B29B 15/122: {with a matrix in liquid form, e.g. as melt, solution or latex}
- C11D 2111/18: Glass; Plastics
- C11D 2111/20: Industrial or commercial equipment, e.g. reactors, tubes or engines
- D07B 1/22: Flat or flat-sided ropes; Sets of ropes consisting of a series of parallel ropes
- D07B 5/006: {by the properties of an outer surface polymeric coating}
- D07B 2201/2087: being of the coated type
- D07B 2501/2007: Elevators
- B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00)
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- D07B: ROPES OR CABLES IN GENERAL (joining ropes or cables to one another or to other objects B65H69/00, F16G11/00; {mountaineering ropes A63B29/02}; mechanical finishing or dressing of ropes D02J; {braiding D04C}; decorative ropes or cords D04D; suspension cables for bridges E01D19/16; specially adapted for driving, or for being driven by, pulleys or other gearing elements F16G9/00; electric cables or joints insofar as electrical aspects are essential H01B, H01R)

## Abstract

A method of surface treating a load-bearing member comprising a tension member and a polymer jacket around the tension member is disclosed. According to the method, a liquid composition including water, a water-soluble organic polyol or a water-soluble organic polymer, and a surfactant is applied to a surface of the polymer jacket.

## Claims

### Claim 1

A method of surface treating a load-bearing member, comprising:
providing a load-bearing member comprising a tension member and a polymer jacket around the tension member;
applying a liquid composition to a surface of the polymer jacket, said liquid composition consisting of 5-95 wt. % of a water-soluble organic polyol or water-soluble polymer, 2-50 wt. % of a surfactant, optionally an ionic strength booster selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide and combinations of the foregoing, and the balance of the liquid composition being water to a total of 100 wt. %, each of the weight percentages based on the total weight of the liquid composition, said weight percentages subject to the limitation that the water-soluble organic polyol or a water-soluble-organic polymer is present in an amount within a solubility limit of the water-soluble organic polyol or water-soluble organic polymer in water, wherein said water-soluble organic polyol or a water-soluble-organic polymer comprises propylene glycol, ethylene glycol, polyethylene glycol, glycerin, pentaerythritol, sucrose, sucralose, polyacrylic acid, polyvinyl alcohol, ethylene vinyl alcohol, polyacrylamide, dextran, glucose, or polysaccharide.

### Claim 2 (depends on 1)

The method of claim 1, wherein the load-bearing member is disposed in a load-bearing system comprising a first load attached to a first end of the load-bearing member, a second load attached to a second end of the load-bearing member, and a sheave with which the polymer jacket is in movable contact between the first and second ends of the tension member.

### Claim 3 (depends on 2)

The method of claim 2, wherein the load-bearing system comprises an elevator system including an elevator car as the first load and an elevator counterweight as the second load.

### Claim 4 (depends on 1)

The method of claim 1, wherein the liquid composition is free of flammable organic solvent.

### Claim 5 (depends on 1)

The method of claim 1, wherein the polymer jacket comprises a polymer and an additive selected from a mold release agents, lubricants, plasticizers, antioxidants, UV stabilizers, friction modifiers, flame retardant, antistatic agent, antimicrobial agents, impact modifiers, or combinations comprising any of the foregoing.

### Claim 6 (depends on 1)

The method of claim 1, wherein the polymer jacket comprises polyurethane, polyester, ethylene propylene diene elastomer, chloroprene, chlorosulfonyl polyethylene, ethylene vinyl acetate, polyamide, polypropylene, butyl rubber, acrylonitrile butadiene rubber, styrene butadiene rubber, acrylic elastomer, fluoroelastomer, silicone elastomer, polyolefin elastomer, styrene block and diene elastomer, natural rubber, or a combination comprising any of the foregoing.

### Claim 7 (depends on 1)

The method of claim 1, wherein the polymer jacket comprises thermoplastic polyurethane.

### Claim 8 (depends on 1)

The method of claim 1, wherein the water-soluble organic polyol is present in an amount of at least 10 wt. %, subject to the limitation that the water-soluble organic polyol is present in an amount within a solubility limit of the water-soluble organic polyol or water-soluble organic polymer in water.

### Claim 9 (depends on 1)

The method of claim 1, wherein the water-soluble organic polymer is present in an amount of at least 10 wt. %, subject to the limitation that the water-soluble organic polymer is present in an amount within a solubility limit of the water-soluble organic polyol or water-soluble organic polymer in water.

### Claim 10 (depends on 1)

The method of claim 1, wherein the ionic strength booster is present.

### Claim 11 (depends on 1)

The method of claim 1, further comprising agitation of the liquid composition on the surface of the polymer jacket.

### Claim 12 (depends on 1)

The method of claim 1, wherein the water-soluble organic polyol or water-soluble organic polymer is present in an amount of at least 50 wt. %, subject to the limitation that the water-soluble organic polyol or a water-soluble-organic polymer is present in an amount within a solubility limit of the water-soluble organic polyol or water-soluble organic polymer in water.

### Claim 13 (depends on 1)

The method of claim 1, further comprising rinsing and wiping the surface of the polymer jacket to remove the liquid composition.

### Claim 14 (depends on 1)

The method of claim 1, wherein the liquid composition consists of:
(a) 5-95 wt. % of the water-soluble organic polyol or a water-soluble organic polymer;
(b) 2-50 wt. % of the surfactant;
(c) 0.1-20 wt. % of the ionic strength booster; and
(d) the balance of the liquid composition being water to a total of 100 wt. %;
said weight percentages based on the total weight of the liquid composition, and subject to the limitation that the water-soluble organic polyol or a water-soluble-organic polymer is present in an amount within a solubility limit of the water-soluble organic polyol or water-soluble organic polymer in water.

### Claim 15

A method of making a load-bearing member, comprising applying a fluid polymer composition to a tension member and solidifying the fluid polymer composition to form a polymer jacket around the tension member, and applying a liquid composition to a surface of the polymer jacket, said liquid composition consisting of 5-95 wt. % of a water-soluble organic polyol or water-soluble polymer, 2-50 wt. % of a surfactant, optionally an ionic strength booster selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide and combinations of the foregoing, and the balance of the liquid composition being water to a total of 100 wt. %, each of the weight percentages based on the total weight of the liquid composition, said weight percentages subject to the limitation that the water-soluble organic polyol or a water-soluble-organic polymer is present in an amount within a solubility limit of the water-soluble organic polyol or water-soluble organic polymer in water, wherein said water-soluble organic polyol or a water-soluble-organic polymer comprises propylene glycol, ethylene glycol, polyethylene glycol, glycerin, pentaerythritol, sucrose, sucralose, polyacrylic acid, polyvinyl alcohol, ethylene vinyl alcohol, polyacrylamide, dextran, glucose, or polysaccharide.

### Claim 16

A method of removing wax from a surface of a substrate, comprising applying a liquid composition to the surface of the substrate, said liquid composition consisting of 5-95 wt. % of a water-soluble organic polyol or water-soluble polymer, 2-50 wt. % of a surfactant, optionally an ionic strength booster selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide and combinations of the foregoing, and the balance of the liquid composition being water to a total of 100 wt. %, each of the weight percentages based on the total weight of the liquid composition, said weight percentages subject to the limitation that the water-soluble organic polyol or a water-soluble-organic polymer is present in an amount within a solubility limit of the water-soluble organic polyol or water-soluble organic polymer in water, wherein said water-soluble organic polyol or a water-soluble-organic polymer comprises propylene glycol, ethylene glycol, polyethylene glycol, glycerin, pentaerythritol, sucrose, sucralose, polyacrylic acid, polyvinyl alcohol, ethylene vinyl alcohol, polyacrylamide, dextran, glucose, or polysaccharide.

### Claim 17 (depends on 16)

The method of claim 16, wherein the wax comprises C24-C60 organic compounds.