Load-bearing member surface treatment
AssigneeOtis Elevator Company
InventorChen Qian Zhao
Life of this patent
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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.
Claims17
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.
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.
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.
Dependencies are inferred from the claim text.