Dextrin-based protective coating compositions and methods of use thereof
AssigneeCal-West Equipment Company, Inc.
InventorsEdward W. Woodhall, Ronald Swidler
Life of this patent
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Abstract
A vehicle masking material and method of use. The masking material in one embodiment includes a dextrin, a plasticizer, and water. The masking material may additionally include a surfactant. The masking material is applied to a surface which is to be protected from paint overspray or other coating processes, allowed to dry, and the surface is coated (e.g. with paint). After drying of the paint, or other coating, the masking material is removed by water washing.
Claims62
A method of temporarily protecting a surface, said method comprising:
- a) applying a masking material to said surface, said applying resulting in a substantially continuous dry film of said masking material, and said masking material, before drying, comprising an aqueous solution of:
- i) a dextrin present in an amount ranging from about 2 to about 50 weight percent of said masking material;
- and
- ii) a plasticizer present in an amount sufficient to prevent cracking of said film when said masking material is dried;
- b) coating all or a portion of said surface with a coating compound, said masking material preventing said coating compound from contacting said surface;
- and
- c) removing said masking material from said surface;
- said removing step being performed after said coating step.
A composition for temporarily protecting comprising an aqueous solution of:
- a dextrin present in an amount ranging from about 2 to about 50 weight percent of said composition;
- and
- a plasticizer present in an amount sufficient to prevent cracking of a film formed when said composition is dried on a surface.
A method of neutralizing an isocyanate in an overcoating material for disposal, said method comprising:
- contacting said overcoating material with a protective coating composition an aqueous solution of:
- i) a dextrin present in an amount ranging from about 2 to about 50 weight percent of said composition;
- and
- ii) a plasticizer present in an amount sufficient to prevent cracking of a film formed when said coating composition is dried on a surface.
Dependencies are inferred from the claim text.