WO1993012185A1 - Paint composition - Google Patents
Paint composition Download PDFInfo
- Publication number
- WO1993012185A1 WO1993012185A1 PCT/GB1992/002280 GB9202280W WO9312185A1 WO 1993012185 A1 WO1993012185 A1 WO 1993012185A1 GB 9202280 W GB9202280 W GB 9202280W WO 9312185 A1 WO9312185 A1 WO 9312185A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- paint
- composition
- propellant
- resin
- solvent
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/30—Materials not provided for elsewhere for aerosols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
Definitions
- This invention relates to a paint composition which is particularly intended for use in pressurised containers, that is to say aerosol containers.
- paint compositions in aerosol containers.
- paints can conveniently be applied to surfaces, such as parts of vehicle bodies and the like, by spraying and without requiring the use of a brush or other application means.
- the conventional paint compositions for aerosol containers generally comprise the paint itself consisting at least of pigment, a resin binder and a solvent therefor and a propellant.
- the propellant most commonly used at present is butane, propane or a mixture of both. Sometimes carbon dioxide is used as a propellant.
- a typical formulation comprises 35% butane propellant, 55% solvent and 10% solids which is less than half the solids content of a standard paint that is to be applied with a brush.
- the covering power of paint contents of an aerosol container is limited because of the necessity of including a propellant.
- the second problem is that butane is a volatile organic hydro carbon (VOC) which is environmentally objectionable.
- VOC volatile organic hydro carbon
- the present invention has been made in order to deal with these problems.
- the resin employed is a acrylic resin, a modified acrylic resin, nitro cellulose or cellulose derivative or blend of such resins which are insoluble or sparingly soluble in the propellants conventionally used for aerosol paint compositions, that is to say propane and butane, useful blends include cellulose/acrylic resin blends and cellulose/al yd resins blends.
- Acrylic resins are only soluble in a limited number of solvents such as alkyl substituted low boiling aromatic solvents for example toluene and xylene, trimethyl benzene and derivatives thereof, aliphatic esters for example butyl acetate, methoxy propyl acetate aliphatic ketones for example acetone, methyl ethyl ketone, methyl isobutyl ketone, and are insoluble in other solvents such as aliphatic glycol ethers for example l-methoxy-2-propanol, 2-butoxy ethanol and substituted alcohols such as diacetone alcohol and butyl glycol.
- solvents such as alkyl substituted low boiling aromatic solvents for example toluene and xylene, trimethyl benzene and derivatives thereof, aliphatic esters for example butyl acetate, methoxy propyl acetate aliphatic ketones for example acetone, methyl ethyl ketone,
- the cellulose resins are also only soluble in a limited number of solvents such as alkyl substituted low boiling aromatic solvents for example toluene, xylene, aliphatic esters for example ethyl acetate, butyl acetate and aliphatic alcohols such as ethyl alcohol, butyl alcohol, and are insoluble in solvents such as methoxy propanol, aliphatic hydocarbons, and trimethyl benzene derivatives.
- a propellant such as dimethyl ether which is a solvent for the resin ensures that the resin remains in solution. This can be demonstrated by comparing the viscosity of the resin solution before and after addition of the dimethyl ether or other combined solvent and propellant. The addition of the dimethyl ether lowers the viscosity of the resin solution. If a propellant is used which is not a solvent for the resin there may be an increase in viscosity and the resin is precipitated from solution.
- the amount of propellant is chosen having regard to the nature of the paint.
- the amount of propellant is of the order of from 35% to 50% by weight.
- the amount of propellant may be of the order of 15% to 30% by weight.
- the range of propellant content for compositions of the invention may be from 15% to 60% by weight.
- the propellant comprises from 35 to 60% by weight dimethyl ether more preferably from 40 to 55% and the paint solids are present in the range 15 to 30% by weight.
- the level of propellant can be rather lower, for example of the order of from 15% by weight, but the paint solids being present at a very high level, for example above 40%.
- the dimethyl ether tends to vaporise when vented from the container and as a result if there is no other solvent present when the composition is released from the pressurised container there may be insufficient carrier for the paint solids to form a proper film or coating on the surface being provided.
- references to Resin Blend 2 means the following:
- References to Resin Blend 3 means the following:-
- a base for the paint was formulated as follows:
- the above base was then mixed with dimethyl ether in the proportions by weight 54:46 base:dimethyl ether.
- the paint solids content of the resultant primer was 29.0%.
- composition was packaged in a pressurised container.
- a base for a high pigment top coat paint was formulated as follows:-
- the resultant paint had a paint solids content of 18.4% by weight - about twice the solids content of conventional aerosol paints.
- a base for a low pigment paint was made up as follows:-
- a base for a clear lacquer was formulated as follows:-
- the resultant solids content was 17.0%.
- a base for a road marker paint was formulated as follows:-
- a base for a paint was formulated as follows:-
- the base was used to formulate a paint as follows:-
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92924805A EP0616627A1 (en) | 1991-12-12 | 1992-12-09 | Paint composition |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919126398A GB9126398D0 (en) | 1991-12-12 | 1991-12-12 | Paint composition |
GB9126398.8 | 1991-12-12 | ||
GB9213425.3 | 1992-01-24 | ||
GB929213425A GB9213425D0 (en) | 1991-12-12 | 1992-06-26 | Paint composition |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993012185A1 true WO1993012185A1 (en) | 1993-06-24 |
Family
ID=26299996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1992/002280 WO1993012185A1 (en) | 1991-12-12 | 1992-12-09 | Paint composition |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0616627A1 (en) |
AU (1) | AU3091092A (en) |
WO (1) | WO1993012185A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995002644A1 (en) * | 1993-07-15 | 1995-01-26 | Willy's Wood Finishes | Delivery system for wood toner |
BE1020083A3 (en) * | 2011-02-08 | 2013-04-02 | Fiets O Fit B V | COMPOSITION OF AN ACRYLIC PAINT, AND A SPRAYER FILLED WITH SUCH A COMPOSITION. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4923097A (en) * | 1989-01-31 | 1990-05-08 | E. I. Dupont De Nemours And Company | Aerosol paint compositions |
-
1992
- 1992-12-09 AU AU30910/92A patent/AU3091092A/en not_active Abandoned
- 1992-12-09 WO PCT/GB1992/002280 patent/WO1993012185A1/en not_active Application Discontinuation
- 1992-12-09 EP EP92924805A patent/EP0616627A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4923097A (en) * | 1989-01-31 | 1990-05-08 | E. I. Dupont De Nemours And Company | Aerosol paint compositions |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995002644A1 (en) * | 1993-07-15 | 1995-01-26 | Willy's Wood Finishes | Delivery system for wood toner |
BE1020083A3 (en) * | 2011-02-08 | 2013-04-02 | Fiets O Fit B V | COMPOSITION OF AN ACRYLIC PAINT, AND A SPRAYER FILLED WITH SUCH A COMPOSITION. |
Also Published As
Publication number | Publication date |
---|---|
AU3091092A (en) | 1993-07-19 |
EP0616627A1 (en) | 1994-09-28 |
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