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| Plant growing media |
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| Method for storing hazardous or toxic waste material |
| What is claimed is: 1. The method of storing hazardous waste material comprising the steps of: ... |
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| Process for manufacturing fast cooking rice |
| OF THE INVENTION This invention has been accomplished on the basis of a study continued with a ... |
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| OF THE INVENTION This invention relates to a biocompatible immunoisolatory vehicle suitable for ... |
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| Device for rapid defreezing of frozen or deep-frozen products |
| We claim: 1. A device for defreezing frozen or deep-frozen products comprising: a furnace; a ... |
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| Method for the heat curing of raw meat products |
| We claim: 1. A method for heat curing a raw meat medium, the method comprising: conveying the meat ... |
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| Process for preparing a dough for alimentary pasta |
| I claim: 1. Process for preparing an extrudable dough for pasta from cereal meal said process ... |
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Strippable anti-fouling covering for marine structures
| Details |
Inventors: Ruppert, Jr., Emile;
Assignee:
Primary Examiner: Herbert, Jr.; Thomas J.
Assistant Examiner:
Attorney, Agent or Firm: Silverman and Jackson
A strippable covering for protecting marine structures from fouling in contact with water which comprises a sheet-like water-insoluble base prepared from a synthetic, thermoplastic polymeric material selected from the group consisting of polyvinyl acetate, polyvinyl chloride and polyethylene, said base ranging in thickness from 4 to 8 mils and coated on one side thereof with a water insoluble, acrylic adhesive material comprising homopolymers and copolymers of acrylic acid and acid esters, said adhesive material ranging in thickness from about 0.5 to 2 mils, said base coated on the opposite side thereof with an anti-foulant film-forming composition comprising a film-forming ingredient consisting of polyvinyl chloride and wood rosin present in the amount of 11-17% by weight, a pigment component comprising an anti-foulant including cuprous oxide, iron oxide, tin fluoride, and possibly other organo-metallic anti-foulant materials, said pigment further comprising as an anti-foulant ingredient an aromatic bituminous material of a resinous nature such as coal tar or the like, said pigment component present in an amount of about 52% by weight, a diluent or solvent selected from the group consisting of aromatic hydrocarbons, ketones and mixtures thereof, said solvent present in an amount of about 32% by weight and a plasticizer present in an amount of about 2% by weight, said plasticizer selected from the group consisting of tricresyl-phosphate, alkylphthalates, triphenyl phosphate and mixtures thereof. The covering of the present invention provides effective protection against corrosion and attack by marine organisms yet is easily removable at the end of a season before replacement with a like covering material without the need for costly and time-consuming scraping procedures. |
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DETAILED DESCRIPTION OF THE INVENTION In accordance with the present invention, the foregoing objects and advantages are readily attained.
The present invention comprises an anti-foulant covering for the protection of marine structures which comprises a sheet-like, water-insuluble base prepared from a synthetic, thermoplastic, polymeric material selected from the group consisting of polyvinyl acetate, polyvinyl chloride and polyethylene.
Said base ranges in thickness from 4 to 8 mils and is coated on one side with a water-insoluble, pressure-sensitive, acrylic adhesive material ranging in thickness from about 0.
5 to 2 mils.
Said base is coated on the opposite side thereof with an anti-foulant film-forming composition of a thickness of about 2 mils, said composition comprising a film-forming component present in an amount ranging from about 11 to about 17% by weight, said component consisting of wood rosin and polyvinyl chloride, a pigment component present in an amount of about 52% by weight, said pigment component comprising cuprous oxide, iron oxide, tin fluoride and an aromatic bituminous resin, an extender or diluent component present in an amount of about 32% by weight, said extender component comprising aromatic hydrocarbons and ketones and mixtures thereof, and a plasticizer component present in an amount of about 2% by weight, said plasticizer selected from the group consisting of tricresyl-phosphate, dialkylphthalates such as dibutylphthalate and dioctylaphthalate, and triphenylphosphate.
The covering of the present invention is simply applied by placement against the surface to be protected followed by the application of mild pressure thereto.
Removal of the covering is usually accomplished by simply grasping an available end thereof and pulling said covering away from said surface.
The covering of the present invention comprises a sheet-like, water-insoluble base.
The base is generally prepared from a synthetic thermoplastic, polymeric material such as polyvinyl acetate, polyvinyl chloride and polyethylene
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