Polymeric structural support membrane
AssigneeMBT Holding AG
InventorsNancy A. Dulzer, Jeffrey T. Champa, Michael Porsch
Life of this patent
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Abstract
A polymeric structural support membrane composed of a polymer that is an initiator induced reaction product of a monomer, a co-monomer, an initiator, and optionally a crosslinking agent and a fire retardant, is applied to the surfaces of an excavation to provide structural support. The polymer is a reaction product of a monofunctional monomer and co-monomer. The membrane formed has a tensile strength and a thickness sufficient to provide support to the exposed surfaces in the excavation and can be applied by spraying, brushing, pumping or rolling.
Claims35
A polymeric excavation structural support membrane comprising a polymer that is an initiator induced reaction product of a monomer, a co-monomer, an initiator, a fire retardant, and optionally at least one of a crosslinking agent, a smoke retardant, a rheology modifier, a reaction rate modifier, a plasticizer, an emulsifier, a defoamer, a filler, and a coloring agent;
- wherein the monomer is selected from the group consisting of aryloxy alkyl acrylates, aryloxy alkyl methacrylates, and mixtures thereof;
- wherein the co-monomer is selected from the group consisting of alkyl ester acrylates, alkyl ester methacrylates, and mixtures thereof, wherein the membrane has a tensile strength and thickness sufficient to provide support to exposed surfaces in an excavation.
A polymeric excavation structural support membrane comprising a polymer that is an initiator induced reaction product of a monomer, a co-monomer, an initiator, a crosslinking agent, a fire retardant, and optionally at least one of a smoke retardant, a rheology modifier, a reaction rate modifier, a plasticizer, an emulsifier, a defoamer, a filler, and a coloring agent;
- wherein the monomer is selected from the group consisting of monofunctional aryloxy alkyl acrylates, monofunctional aryloxy alkyl methacrylates, and mixtures thereof;
- wherein the co-monomer is selected from the group consisting of monofunctional alkyl ester acrylates, monofunctional alkyl ester methacrylates, and mixtures thereof.
A method of reinforcing exposed surfaces in an excavation with a polymeric structural support membrane comprising:
- a. applying to the exposed surface a mixture comprising a monomer, a co-monomer, an initiator, a fire retardant, and optionally at least one of a crosslinking agent, a smoke retardant, a rheology modifier, a reaction rate modifier, a plasticizer, an emulsifier, a defoamer, a filler, and a coloring agent;
- wherein the monomer is selected from the group consisting of aryloxy alkyl acrylates, aryloxy alkyl methacrylates, and mixtures thereof, wherein the co-monomer is selected from the group consisting of alkyl ester acrylates, alkyl ester methacrylates, and mixtures thereof, and
- b. reacting the mixture;
- wherein the membrane has a tensile strength and thickness sufficient to provide support to the exposed surfaces in the excavation.
A polymeric structural support membrane formed from the process comprising:
- a. applying to an exposed surface in an excavation a mixture comprising a monomer, a co-monomer, an initiator, a fire retardant;
- and optionally at least one of a crosslinking agent, a smoke retardant, a rheology modifier, reaction rate modifier, a plasticizer, emulsifier, defoamer, filler, and coloring agent;
- wherein the monomer is selected from the group consisting of aryloxy alkyl acrylates, aryloxy alkyl methacrylates, and mixtures thereof, wherein the co-monomer is selected from the group consisting of alkyl ester acrylates, alkyl ester methacrylates, and mixtures thereof, and
- b. reacting the mixture;
- wherein the membrane has a tensile strength and thickness sufficient to provide support to the exposed surfaces in the excavation.
Dependencies are inferred from the claim text.