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US 2011/0034617 A1Published application
Aliphatic Unsaturated Polyester Resins Providing Excellent Weathering Resistance
AssigneeNew-Coat A/S
InventorPeter Kjaer
Life of this patent
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Abstract
Aliphatic unsaturated polyester resins providing excellent weathering resistance. Use of a gelcoat providing excellent weathering resistance, UV resistance, reduction of yellowing and retention of gloss that is especially suitable as gelcoat for exterior glass fibre surfaces such as sailboats, motorboats, yachts and mobile homes. The gel comprises an aliphatic unsaturated polyester resin characterised in having a viscosity of 100-1000 mPa s (25° C.), a monomer content of 40±15% and an acid number of max 15 mg KOH/g.
Claims5
Use of a gelcoat comprising an aliphatic unsaturated polyester resin characterised in
- a viscosity of 500-600 mPa s (25° C.)
- a styrene monomer content of 40±2% and
- an acid number of max 15 mg KOH/g
- for application on glass fibre, plastics and other synthetic materials such as materials used for sailboats, yachts, motorboats and mobile homes.
1 more element
Gelcoat comprising
- Aliphatic unsatured polyester resin
- 50-80%
- Cobolt-octoate accelerator
- 0-0.5%
- Amine accelerator
- 0-0.5%
- Inhibitor
- 0-0.5%
- Air release agent
- 0-0.5%
- Levelling agent
- 0-0.5%
- Filler
- 5-15%
- Silica
- 1-3%
- Glycol
- 0.2-0.5%
- Pigment
- 2-15%
- UV-stabiliser A
- 0-2%
- UV-stabiliser B
- 0-2%
- Styrene
- 5-15%
- wherein the aliphatic unsaturated polyester resin is characterised in
- a viscosity of 500-600 mPa s (25° C.)
- a styrene monomer content of 40±2% and
- an acid number of max 15 mg KOH/g
27 more elements
Dependencies are inferred from the claim text.