SPRAYABLE COMPOSITION AND METHOD

Abstract

A method for preparing a sprayable composition, the method comprising, sequentially: (i) providing a composition in a container (10), wherein the composition comprises at least one core component and at least one solvent. wherein the at least one core component comprises at least one polymer or resin; (ii) sealing the container (10); (iii) providing a flammability reducer in the container (10); and (iv) pressurising the container (10) with a gas propellant.

Claims

1-24. (canceled)

25. A method for preparing a sprayable composition, the method comprising: (i) providing a composition in a container, wherein the composition comprises at least one core component and at least one solvent, wherein the at least one core component comprises at least one polymer or resin; (ii) sealing the container; (iii) providing a flammability reducer in the container; and (iv) pressurising the container with a gas propellant.

26. A method according to claim 25, wherein the composition comprises an adhesive composition, a coating composition, or a primer composition.

27. A method according to claim 25, wherein steps (i), (ii) (iii) and (iv) are carried out sequentially.

28. A method according to claim 25, wherein the method comprises mixing the at least one core component and at least one solvent before providing the composition in the container.

29. A method according to claim 25, wherein the composition comprises an adhesive composition, wherein the at least one core component comprises at least one adhesive and wherein the at least one core component comprises at least one adhesive.

30. A method according to claim 25, wherein the at least one core component comprises, consists essentially of or consists of one or more polymers selected from styrene butadiene (SBR), styrene-butadiene-styrene block copolymer (SBS) or styrene-isoprene-styrene block copolymer (SIS).

31. A method according to claim 25, wherein the at least one solvent comprises, consists essentially of or consists of one or more solvents selected from methylacetate, ethylacetate, methyl ethyl ketone (MEK), acetone, or transdichloroethylene.

32. A method according to claim 25, wherein the flammability reducer comprises, consists essentially of or consists of trans-1-chloro-3,3,3-trifluoropropene.

33. A method according to claim 25, wherein the gas propellant comprises, consists essentially of or consists of carbon dioxide.

34. A method according to claim 25, wherein the amount of core component is in the range of about 10-50 wt % relative to the amount of the composition, wherein the amount of solvent is in the range of about 50-90 wt % of the composition, and wherein the amount of flammability reducer is in the range of about 5-50 wt % relative to the amount of solvent in the composition.

35. A method according to claim 25, wherein the amount of gas propellant is in the range of about 3-30 wt % relative to the total amount of the sprayable composition.

36. A method for preparing a sprayable adhesive composition, the method comprising: (i) providing an adhesive composition comprising at least one adhesive and transdichloroethylene in a container; (ii) sealing the container; (iii) providing trans-1-chloro-3,3,3-trifluoropropene in the container; and (iv) pressurising the container with a gas propellant.

37. A method according to claim 36, wherein steps (i), (ii), (iii) and (iv) are carried out sequentially.

38. A sprayable composition comprising: a composition comprising at least one core component and at least one solvent, wherein the at least one core component comprises at least one polymer or resin and wherein the solvent comprises transdichloroethylene; a flammability reducer comprising trans-1-chloro-3,3,3-trifluoropropene; and a gas propellant comprising carbon dioxide.

39. A sprayable composition according to claim 38, wherein the composition comprises an adhesive composition, a coating composition, or a primer composition.

40. A sprayable composition according to claim 38, wherein the at least one core component comprises, consists essentially of or consists of one or more polymers selected from styrene butadiene (SBR), styrene-butadiene-styrene block copolymer (SBS) or styrene-isoprene-styrene block copolymer (SIS).

41. A kit for storing a sprayable composition, comprising: a container; and a sprayable composition provided inside the container, the sprayable composition comprising: a composition comprising at least one core component and at least one solvent, wherein the at least one core component comprises at least one polymer or resin and wherein the solvent comprises transdichloroethylene; a flammability reducer comprising trans-1-chloro-3,3,3-trifluoropropene; and a gas propellant comprising carbon dioxide.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0077] The present invention will now be further described in detail and with reference to the figures in which:

[0078] FIG. 1 shows a canister according to a first embodiment;

[0079] FIGS. 2 and 3 show an embodiment of a set-up useful to implement a method according to a second embodiment.

DETAILED DESCRIPTION OF THE DRAWINGS

[0080] FIG. 1 shows a canister 10 according to a first embodiment. The canister 10 has a canister body 12, and handle 14, and a valve 16. The canister 10 represents a typical embodiment of a canister suitable to receive a sprayable composition according to the present invention.

[0081] FIGS. 2 and 3 show an embodiment of a set-up useful to implement a method according to a second embodiment, as described in more detail in the examples below.

EXAMPLES

Materials

Adhesive

[0082] Adhesives used in the following examples were: [0083] SIS elastomer marketed as Vector® 4255 from TSRC; [0084] SIS elastomer marketed as Vector® 4411 from TSRC.

Solvent

[0085] The solvent used in the following examples was Transdichloroethylene (marketed as 1,2-Transdichloroethylene from Samuel Banner & Co Ltd)

Flammability Reducer

[0086] The flammability reducer used in the following examples was trans-1-chloro-3,3,3-trifluoropropene marketed a Solstice® PF-C by Honeywell.

Gas Propellant

[0087] The gas propellant used in the following examples was carbon dioxide. Carbon dioxide was supplied in 1491 kg tanks procured from Air Products.

Method

[0088] A 22.1 L canister 10, as shown in FIG. 1, was used in this example.

[0089] In a drum were mixed approximately 30 kg of adhesive and approximately 65 kg of transdichloroethylene solvent.

[0090] Upon dissolution of the adhesive in the solvent, 7 kg of the adhesive composition was transferred into the canister 10.

[0091] The canister 10 was sealed.

[0092] The flammability reducer was then added to the canister. To do this, as shown in FIG. 2, the canister inlet valve 16 was connected to a container 20 of trans-1-chloro-3,3,3-trifluoropropene via tube connection 24. Approximately 1 kg of trans-1-chloro-3,3,3-trifluoropropene was then pumped into the canister 10 via pump 25.

[0093] The canister 10 was then pressurised using carbon dioxide. As shown in FIG. 3, the canister inlet valve 16 was connected to a carbon dioxide cylinder 30 equipped with a measuring gauge 32, via tube connection 34. Approximately 1 kg of carbon dioxide was then injected into the canister 10 via regulator 35, leading to a pressure inside the canister 10 of approximately 250 psi (17.2 bar).

[0094] It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as described herein without departing from the scope of the present invention. The present embodiments are therefore to be considered for illustrative purposes and are not restrictive, and are not limited to the extent of that described in the embodiment.