Sprayer

Patent metadata

Field	Value
Publication number	US-2020239755-A1
Application number	US-202016830360-A
Country	US
Kind code	A1
Filing date	Mar 26, 2020
Priority date	Sep 28, 2017
Publication date	Jul 30, 2020
Grant date	—

Abstract

To provide a sprayer with high safety, specifically, a sprayer from which a component to be sprayed is incombustible and which imposes less environmental burden. A sprayer comprising a container, a propellant composition containing 1-chloro-2,3,3,3-tetrafluoropropene contained in the interior of the container, and a spray unit to spray the propellant composition to the outside of the container, wherein the propellant composition to be sprayed satisfies (1) in a predetermined combustion test, the propellant composition to be sprayed is evaluated to “have no combustibility”, and (2) the global warming potential (100 years) in accordance with Intergovernmental Panel on Climate Change (IPCC), Fifth assessment report, is less than 10, throughout the entire period over which the sprayer is used.

First claim

What is claimed is:

1 . A sprayer comprising a container, a propellant composition containing 1-chloro-2,3,3,3-tetrafluoropropene contained in the interior of the container, and a spray unit to spray the propellant composition to the outside of the container,
wherein the propellant composition to be sprayed satisfies the following requirements (1) and (2) throughout the entire period over which the sprayer is used: (1) in the following combustion test, the propellant composition to be sprayed is evaluated to “have no combustibility”: in combustion test carried out with respect to a mixture of a specimen and air in a container controlled at 60° C.±3° C. under 101.3 kPa±0.7 kPa in facilities as specified in ASTM E-681-09, when the mixture has no combustibility in the entire range of a proportion of the specimen to the total volume of the mixture being higher than 0 vol % and up to 100 vol %, such a specimen is evaluated to “have no combustibility”; in the combustion test, in a gaseous phase in the vicinity of the center of the container, a fire is made by discharge ignition under 15 kV at 30 mA for 0.4 second, spread of flame is visually confirmed, and when the angle of spread of the flame upward is less than 90 degrees, such a specimen is evaluated to have no combustibility; (2) the global warming potential (100 years) in accordance with Intergovernmental Panel on Climate Change (IPCC), Fifth assessment report, is less than 10.

2 . The sprayer according to claim 1 , wherein the 1-chloro-2,3,3,3-tetrafluoropropene consists of (Z)-1-chloro-2,3,3,3-tetrafluoropropene and (E)-1-chloro-2,3,3,3-tetrafluoropropene, and the proportion of (Z)-1-chloro-2,3,3,3-tetrafluoropropene to the total amount of 1-chloro-2,3,3,3-tetrafluoropropene is at least 80 mass % and at most 100 mass %.

3 . The sprayer according to claim 1 , wherein the propellant composition further contains a hydrofluoroolefin.

4 . The sprayer according to claim 3 , wherein the hydrofluoroolefin contains at least one member selected from 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene and 1,1,1,4,4,4-hexafluoro-2-butene.

5 . The sprayer according to claim 1 , wherein the propellant composition comprises (Z)-1-chloro-2,3,3,3-tetrafluoropropene and (E)-1,3,3,3-tetrafluoropropene, and the proportion of (Z)-1-chloro-2,3,3,3-tetrafluoropropene is at least 20 mass % and less than 100 mass % to the total mass of (Z)-1-chloro-2,3,3,3-tetrafluoropropene and (E)-1,3,3,3-tetrafluoropropene in a gaseous phase portion in the container filled with the propellant composition so that the liquid phase portion is 90 vol %.

6 . The sprayer according to claim 1 , wherein the propellant composition comprises (Z)-1-chloro-2,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene, and the proportion of (Z)-1-chloro-2,3,3,3-tetrafluoropropene is at least 30 mass % and less than 100 mass % to the total mass of (Z)-1-chloro-2,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene in a gaseous phase portion in the container filled with the propellant composition so that the liquid phase portion is 90 vol %.

Assignees

• Agc Inc

Inventors

• Hayamizu Hiroki
• Fukushima Masato

Classifications

• B65D83/141 Primary

  specially adapted for specific contents or propellants · CPC title

• B65D83/20

  Actuator caps · CPC title

• C09K3/30 Primary

  for aerosols (aerosol containers B65D83/14) · CPC title

• C09K2205/126

  Unsaturated fluorinated hydrocarbons · CPC title

• C09K2205/122

  Halogenated hydrocarbons · CPC title