Patent ID: 12221564

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure will be further described below with the accompanying embodiments.

Embodiment 1

(1) Thermoplastic Polyurethane (TPU) with a melting point of 70° C. (product No. 1070AP, which is purchased from Zhejiang Huafon Thermoplastic Polyurethane Co., Ltd.) and a tackifier of acrylate polymer (a molecular weight is 63000) are added into a mixing tank according to the following ratio, stirred at a constant speed, and dispersed at a stirring speed of 500 revolutions/minute for 20 minutes to be uniformly mixed for later use. The TPU is a polymer of polyester polyol, polyether polyol, and methylenediphenyl diisocyanate (MDI).

(2) The material obtained in the step (1) is poured into a feed tank of a twin-screw extruder.

(3) Flame retardant (e.g., a compounded phosphorus-nitrogen flame retardant), nano lanthanum oxide, an antibacterial agent (e.g., a compounded antibacterial agent), etc. are added into the mixing tank according to a ratio, uniformly mixed, and then poured into the feed tank of the twin-screw extruder. The compounded phosphorus-nitrogen flame retardant is compounded using aluminum diethylhypophosphite and melamine polyphosphate.

(4) An extrusion temperature and a discharge rate are set, the materials obtained in the steps (2) and (3) are uniformly mixed using the twin-screw extruder, cooled by water for cooling, granulated, and then put into a constant-temperature oven a while later, and dried to control a moisture content to be less than 0.03% to obtain material particles, wherein a drying temperature is set to 80° C.

(5) The material particles obtained in the step (4) are introduced into a feed port of a cast machine, cast onto a surface with release paper of a cast roll to form a film, a pressure is applied to the film to enable the film to be flatly attached to the release paper, so that the film moves with the cast roll to pass through a cooling device, and then the film is shaped to obtain cast film coils.

(6) The cast film coils obtained in the step (5) are cut into tape for fixing requirements and stored in vacuum-sealed plastic bags.

The following tables illustrate a ratio of main components of the tape in this embodiment.

TABLE 1Ratio of the main components in Embodiment 1No.Material namewt %1Thermoplastic polyurethane (TPU)852Flame retardant63Nano ultraviolet-aging (UV-aging)2resistance agent (Lanthanum oxide)4Zinc pyrithione (ZPT), CIT (a1weight ratio is 1:1)5tackifier (acrylate polymer)6

TABLE 2Performance of a bonding tent of Embodiment 1SetvalueImplementNo.Itemsfor teststandard1Bonding strength, N280ISO 13935-2-20142Flame retardant gradeV-0UL 903UV-aging resistance (no ungluedPassOutdoor testphenomenon, no chalking), 12 months4A size of a bacterial inhibition zone22 mm—(an inhibition rate ofE. coli)

Embodiment 2

(1) Thermoplastic Polyurethane (TPU) with a melting point of about 90° C. (product No. 1180A, which is purchased from BASF) and a tackifier of epoxy acrylate polymer (a molecular weight is 52000) are added into a mixing tank according to the following ratio, stirred at a constant speed, and dispersed at a stirring speed of 300 revolutions/minute for 30 minutes to be uniformly mixed for later use. The TPU is a polymer of polyester polyol, polyether polyol, and methylenediphenyl diisocyanate (MDI).

(2) The material obtained in the step (1) is poured into a feed tank of a twin-screw extruder.

(3) Flame retardant (e.g., a compounded phosphorus-nitrogen flame retardant), nano cerium oxide, an antibacterial agent (e.g., a compounded antibacterial agent), etc. are added into the mixing tank according to a ratio, uniformly mixed, and then poured into the feed tank of the twin-screw extruder. The compounded phosphorus-nitrogen flame retardant is compounded using aluminum diethylhypophosphite and melamine polyphosphate.

(4) An extrusion temperature and a discharge rate are set, the materials obtained in the steps (2) and (3) are uniformly mixed using the twin-screw extruder, cooled by water for cooling, granulated, and then put into a constant-temperature oven a while later, and dried to control a moisture content to be less than 0.03% to obtain material particles, wherein a drying temperature is set to 70° C.

(5) The material particles obtained in the step (4) are introduced into a feed port of a cast machine, cast onto a surface with release paper of a cast roll to form a film, a pressure is applied to the film to enable the film to be flatly attached to the release paper, so that the film moves with the cast roll to pass through a cooling device, and then the film is shaped to obtain cast film coils.

(6) The cast film coils obtained in the step (5) are cut into tape for fixing requirements and stored in vacuum-sealed plastic bags.

The following tables illustrate a ratio of main components of the tape in this embodiment.

TABLE 3Ratio of the main components in Embodiment 2No.Material namewt %1Thermoplastic polyurethane (TPU)782Flame retardant83Nano UV-aging resistance agent3(cerium oxide)4CPT, ZPT (a weight ratio is 1:1)25tackifier (epoxy acrylate polymer)9

TABLE 4Performance of a bonding tent of Embodiment 2SetvalueImplementNo.Itemsfor teststandard1Bonding strength, N350ISO 13935-2-20142Flame retardant gradeV-0UL 903UV-aging resistance (no ungluedPassOutdoor testphenomenon, no chalking), 12 months4A size of a bacterial inhibition zone28 mm—(an inhibition rate ofE. coli)

Embodiment 3

(1) Thermoplastic Polyurethane (TPU) with a melting point of 110° C. (product No. 1195A, which is purchased from BASF) and a mixture tackifier of acrylate polymer (a molecular weight is 63000) and epoxy acrylate polymer (a molecular weight is 52000) (a weight ratio of the acrylate polymer and the epoxy acrylate polymer is 1:1) are added into a mixing tank according to the following ratio, stirred at a constant speed, and dispersed at a stirring speed of 400 revolutions/minute for 25 minutes to be uniformly mixed for later use. The TPU is a polymer of polyester polyol, polyether polyol, and methylenediphenyl diisocyanate (MDI).

(2) The material obtained in the step (1) is poured into a feed tank of a twin-screw extruder.

(3) Flame retardant (e.g., a compounded phosphorus-nitrogen flame retardant), nano cerium oxide, an antibacterial agent (e.g., a compounded antibacterial agent), etc. are added into the mixing tank according to a ratio, uniformly mixed, and then poured into the feed tank of the twin-screw extruder. The compounded phosphorus-nitrogen flame retardant is compounded using aluminum diethylhypophosphite and melamine polyphosphate.

(4) An extrusion temperature and a discharge rate are set, the materials obtained in the steps (2) and (3) are uniformly mixed using the twin-screw extruder, cooled by water for cooling, granulated, and then put into a constant-temperature oven a while later, and dried to control a moisture content to be less than 0.03% to obtain material particles, wherein a drying temperature is set to 90° C.

(5) The material particles obtained in the step (4) are introduced into a feed port of a cast machine, cast onto a surface with release paper of a cast roll to form a film, a pressure is applied to the film to enable the film to be flatly attached to the release paper, so that the film moves with the cast roll to pass through a cooling device, and then the film is shaped to obtain cast film coils.

(6) The cast film coils obtained in the step (5) are cut into tape for fixing requirements and stored in vacuum-sealed plastic bags.

The following tables illustrate a ratio of main components of the tape in this embodiment.

TABLE 5Ratio of the main components in Embodiment 3No.Material namewt %1Thermoplastic polyurethane (TPU)702Flame retardant103Nano UV-aging resistance agent5(cerium oxide)4MIT, ZPT (a weight ratio is 1:1)35Mixture tackifier12

TABLE 6Performance of a bonding tent of Embodiment 3SetvalueImplementNo.Itemsfor teststandard1Bonding strength, N220ISO 13935-2-20142Flame retardant gradeV-0UL 903UV-aging resistance (no ungluedPassOutdoor testphenomenon, no chalking), 12 months4A size of a bacterial inhibition zone22 mm—(an inhibition rate ofE. coli)

Comparative Embodiment 4

(1) Thermoplastic Polyurethane (TPU) with a melting point of 90° C. (product No. 1180A, which is purchased from BASF) and a tackifier of epoxy acrylate polymer (a molecular weight is 52000) are added into a mixing tank according to the following ratio, stirred at a constant speed, and dispersed at a stirring speed of 300 revolutions/minute for 30 minutes to be uniformly mixed for later use. The TPU is a polymer of polyester polyol, polyether polyol, and methylenediphenyl diisocyanate (MDI).

(2) The material obtained in the step (1) is poured into a feed tank of a twin-screw extruder.

(3) Flame retardant (e.g., a compounded phosphorus-nitrogen flame retardant), nano cerium oxide, an antibacterial agent (e.g., a compounded antibacterial agent), etc. are added into the mixing tank according to a ratio, uniformly mixed, and then poured into the feed tank of the twin-screw extruder. The compounded phosphorus-nitrogen flame retardant is compounded using aluminum diethylhypophosphite and melamine polyphosphate.

(4) An extrusion temperature and a discharge rate are set, the materials obtained in the steps (2) and (3) are uniformly mixed using the twin-screw extruder, cooled by water for cooling, granulated, and then put into a constant-temperature oven a while later, and dried to control a moisture content to be less than 0.03% to obtain material particles, wherein a drying temperature is 70° C.

(5) The material particles obtained in the step (4) are introduced into a feed port of a cast machine, cast onto a surface with release paper of a cast roll to form a film, a pressure is applied to the film to enable the film to be flatly attached to the release paper, so that the film moves with the cast roll to pass through a cooling device, and then the film is shaped to obtain cast film coils.

(6) The cast film coils obtained in the step (5) are cut into tape for fixing requirements and stored in vacuum-sealed plastic bags.

The following tables illustrate a ratio of main components of the tapes in this comparative embodiment.

TABLE 7Ratio of the main components in Comparative Embodiment 4No.Material namewt %1Thermoplastic polyurethane (TPU)872Flame retardant83Nano UV-aging resistance agent3(cerium oxide)4CPT, ZPT (a weight ratio is 1:1)25tackifier (epoxy acrylate polymer)0

TABLE 8Performance of a bonding tent of Comparative Embodiment 4SetvalueImplementNo.Itemsfor teststandard1Bonding strength, N120ISO 13935-2-20142Flame retardant gradeV-0UL 903UV-aging resistance (no ungluedPassOutdoor testphenomenon, no chalking), 10 months4A size of a bacterial inhibition zone22 mm—(an inhibition rate ofE. coli)

Comparative Embodiment 5

(1) Thermoplastic Polyurethane (TPU) with a melting point of 90° C. (product No. 1180A, which is purchased from BASF) and a tackifier of epoxy acrylate polymer (a molecular weight is 52000) are added into a mixing tank according to the following ratio, stirred at a constant speed, and dispersed at a stirring speed of 300 revolutions/minute for 30 minutes to be uniformly mixed for later use. The TPU is a polymer of polyester polyol, polyether polyol, and methylenediphenyl diisocyanate (MDI).

(2) The material obtained in the step (1) is poured into a feed tank of a twin-screw extruder.

(3) Flame retardant (e.g., a compounded phosphorus-nitrogen flame retardant), nano cerium oxide, an antibacterial agent (e.g., a compounded antibacterial agent), etc. are added into the mixing tank according to a ratio, uniformly mixed, and then poured into the feed tank of the twin-screw extruder. The compounded phosphorus-nitrogen flame retardant is compounded using aluminum diethylhypophosphite and melamine polyphosphate.

(4) An extrusion temperature and a discharge rate are set, the materials obtained in the steps (2) and (3) are uniformly mixed using the twin-screw extruder, cooled by water for cooling, granulated, and then put into a constant-temperature oven a while later, and dried to control a moisture content to be less than 0.03% to obtain material particles, wherein a drying temperature is 70° C.

(5) The material particles obtained in the step (4) are introduced into a feed port of a cast machine, cast onto a surface with release paper of a cast roll to form a film, a pressure is applied to the film to enable the film to be flatly attached to the release paper, so that the film moves with the cast roll to pass through a cooling device, and then the film is shaped to obtain cast film coils.

(6) The cast film coils obtained in the step (5) are cut into tape for fixing requirements and stored in vacuum-sealed plastic bags.

The following tables illustrate a ratio of main components of the tape in this comparative embodiment.

TABLE 9Ratio of the main components in Comparative Embodiment 5No.Material namewt %1Thermoplastic polyurethane (TPU)782Flame retardant03Nano UV-aging resistance agent3(cerium oxide)4CPT, ZPT (a weight ratio is 1:1)25tackifier (epoxy acrylate polymer)17

TABLE 10Performance of a bonding tent of Comparative Embodiment 5SetvalueImplementNo.Itemsfor teststandard1Bonding strength, N220ISO 13935-2-20142Flame retardant gradeV-2UL 903UV-aging resistance (no ungluedPassOutdoor testphenomenon, no chalking), 8 months4A size of a bacterial inhibition zone15 mm—(an inhibition rate ofE. coli)

The aforementioned embodiments are merely some embodiments of the present disclosure, and the scope of the disclosure is not limited thereto. Thus, it is intended that the present disclosure cover any modifications and variations of the presently presented embodiments provided they are made without departing from the appended claims and the specification of the present disclosure.