EP0017394A2
Expired / Lapsed
EP
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Container for containment of bituminous products
Assignee: RUSSELL MATTHEWS INDUSTRIES Ltd
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Filing: 1980-03-20
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Granted: —
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Expires: 2000-03-20
Abstract
Abstract A container for containment of bituminous products formed by inner (10) and outer (11) flexible casings in intimate contact. The inner casing (10) is of a material which has a softening temperature which is above that of the bituminous product (B) when loaded into the container but below that of the bituminous product (B) when it is applied in use, usually by spraying. This inner casing (10) is of a material which has a viscosity at the application temperature which enables the material when melted with the bituminous product to be applied therewith. The outer casing (11) is made from a material which has strength characteristics which enable it to contain the inner casing (10) and bituminous product (B) during the filling of the container as well as during transportation and storage thereof. The outer casing (11) is impervious to movement therethrough of the contained bituminous product, components or additives thereof and preferably has a softening temperature such that melting does not occur at the application temperature.
Inventors
- 👤 John Brodie Matthews
- 👤 Roger Hubert Keller
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 23:19
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/18; B; B65; B65B; B65B63/00; B65B63/08; B65D; B65D81/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
139 words
A container for containment of bituminous products comprising a first or inner flexible casing (10)located in intimate contact with a second or outer flexible casing (11), said inner casing (11) being of a material which has a softening temperature greater than'the temperature of the bituminous product (B) when it is loaded into said container but lower than the temperature at which the bituminous products (B) are applied in use, said material of the inner casing (10) having a viscosity at said application temperature which enables said inner casing (10) when melted with said bituminous product (B) to be applied therewith, said outer casing (11) being of a material which has strength characteristics which enable it to contain the inner casing (10) and bituminous product (B) during such filling of the package as well as during transportation and storage thereof.
Claim 2
Dependent Claim
139 words
A container for containment of bituminous products comprising a first or inner flexible casing (10)located in intimate contact with a second or outer flexible casing (11), said inner casing (11) being of a material which has a softening temperature greater than'the temperature of the bituminous product (B) when it is loaded into said container but lower than the temperature at which the bituminous products (B) are applied in use, said material of the inner casing (10) having a viscosity at said application temperature which enables said inner casing (10) when melted with said bituminous product (B) to be applied therewith, said outer casing (11) being of a material which has strength characteristics which enable it to contain the inner casing (10) and bituminous product (B) during such filling of the package as well as during transportation and storage thereof.
Claim 3
Dependent Claim
48 words
A container as claimed in Claim 1, wherein the inner and outer casings (10 and 11) are each formed from plastics material with that of the inner casing (10) being different to that of the outer casing (11), said inner and outer casings not adhering to one another.
Claim 4
Dependent Claim
67 words
A container as claimed in Claim 1 or 2, wherein the inner casing (10) material has a density substantially that of the bituminous product (B) to be contained therein at the temperature at which it is applied in use, and is not biodegradable and is as thermally stable as the bitumen when held at the temperature at which the bituminous product is stored or applied in use.
Claim 5
Dependent Claim
30 words
A container as claimed in Claim 1,2 or 3, wherein the inner and outer casings (10 and 11) are of seamless tubular construction and are of substantially the same diameters.
Claim 6
Dependent Claim
47 words
A container as claimed in Claim 4, wherein the inner casing (10) is formed of a low density polyethylene film and the outer casing (11) is formed of a high melting polyamide film, said inner casing having a softening temperature in the range of 60 to 120°C.
Claim 7
Dependent Claim
39 words
A container as claimed in Claim 5, wherein the polyethylene film is of a thickness in the range of 0.02 to 0.07 mm and the polyamide film is of a thickness in the range of 0.02 to 0.1 mm.
Claim 8
Dependent Claim
29 words
A container as claimed in Claim 4, 5 or 6, wherein a release agent or slip material is incorporated (at 14) between or in the inner and/or outer casings.
Claim 9
Dependent Claim
21 words
A container as claimed in Claim 7, wherein the slip material is a low density polyethylene masterbatch containing a slip additive.
Claim 10
Dependent Claim
48 words
A container as claimed in Claim 7, wherein the low density polyethylene masterbatch containing a slip additive is incorporated with either or both of the inner or outer casings (10 and 11) so as to provide a slip surface at the interface of said inner and outer casings.
Claim 11
Dependent Claim
58 words
A container as claimed in any one of the preceding claims, wherein the outer casing (11) is impervious to movement therethrough of a contained bituminous product (B), components thereof or other petroleum additives that may be contained in the bituminous product, and has a softening temperature which is such that melting does not occur at the application temperature.
Claim 12
Independent Claim
187 words
A method for packaging a bituminous product wherein the bituminous product (B) to be packaged is heated to a temperature at which it is flowable, said product being flowed into the inner flexible casing (10) of a package for containment of the product, said inner casing (10) being located in intimate contact with a second or outer flexible casing and said inner casing (10) being of a material which has a softening temperature greater than the said temperature of the bituminous product (B) but less than the temperature at which the bituminous product (B) is applied in use, said inner casing (10) having a viscosity at said application temperature which enables said inner casing (10) when melted with said bituminous product (B) to be applied therewith, the said outer casing (11) being of a material which has strength characteristics which enable it to contain the inner casing (10) and the bituminous product (B) during the product being flowed into the inner casing (10), the inner and outer casings (10 and 11) being sealed (12,13) once the bituminous product (B) has been loaded into said inner casing (10).
Claim 13
Independent Claim
187 words
A method for packaging a bituminous product wherein the bituminous product (B) to be packaged is heated to a temperature at which it is flowable, said product being flowed into the inner flexible casing (10) of a package for containment of the product, said inner casing (10) being located in intimate contact with a second or outer flexible casing and said inner casing (10) being of a material which has a softening temperature greater than the said temperature of the bituminous product (B) but less than the temperature at which the bituminous product (B) is applied in use, said inner casing (10) having a viscosity at said application temperature which enables said inner casing (10) when melted with said bituminous product (B) to be applied therewith, the said outer casing (11) being of a material which has strength characteristics which enable it to contain the inner casing (10) and the bituminous product (B) during the product being flowed into the inner casing (10), the inner and outer casings (10 and 11) being sealed (12,13) once the bituminous product (B) has been loaded into said inner casing (10).
Claim 14
Dependent Claim
53 words
A method as claimed in Claim 11, wherein the inner and outer casings (10 and 11) are of seamless tubes formed from a plastics material and are of substantially the same diameters, the inner casing being formed of a low density polyethylene film and the outer casing being formed of a nylon film.
Claim 15
Dependent Claim
21 words
A method as claimed in Claim 11 or 12, wherein the bitumen product (B) is a roading or paving grade bitumen.
References Cited (Backward Citations)
No citation records indexed.
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