Embodiments provide a helical layer structure including: a helical core member which is formed of a flexible, lengthy, flat plate-like core member and which is formed of a steel plate made of a metal material, such as iron; and a polymeric coating layer which is formed of a polymeric material such as a thermosetting elastic material or a thermoplastic elastic material, and which coats the helical core member. The manufacturing method of the helical layer structure includes: a feeding step of feeding a core member having flexibility; a supply step of supplying the polymeric material having fluidity; a coating step of coating the core member with the polymeric material; a cooling step of cooling a coated intermediate which is coated with the polymeric material; and a helix formation step of helically twisting the coated intermediate to form the helical layer structure.

An object of the invention is to provide a radiation-shielding material that has a high radiation-shielding capability and can be easily coated, molded and sheeted. Metals or the like having a radiation-shielding capability are blended with an elastomer precursor in a high concentration thereby providing a radiation-shielding material that has a higher radiation-shielding capability than ever before and can be easily coated, molded and sheeted in any desired configuration.

An object of the invention is to provide a radiation-shielding material that has a high radiation-shielding capability and can be easily coated, molded and sheeted. Metals or the like having a radiation-shielding capability are blended with an elastomer precursor in a high concentration thereby providing a radiation-shielding material that has a higher radiation-shielding capability than ever before and can be easily coated, molded and sheeted in any desired configuration.

Described are sealing primer compositions that can be used to reduce paint defects such as pops or vapor boil on painted plastic substrates, as well as related methods for sealing plastic substrates, and sealed plastic substrates. Sealing primer compositions of the invention include a functionalized polydiene polymer such as a hydroxylated or other functional-group-containing polybutadiene polymer.

Described are sealing primer compositions that can be used to reduce paint defects such as pops or vapor boil on painted plastic substrates, as well as related methods for sealing plastic substrates, and scaled plastic substrates. Sealing primer compositions of the invention include a functionalized polydiene polymer such as a hydroxylated or other functional-group-containing polybutadiene polymer.

Described are sealing primer compositions that can be used to reduce paint defects such as pops or vapor boil on painted plastic substrates, as well as related methods for sealing plastic substrates, and sealed plastic substrates. Sealing primer compositions of the invention include a functionalized polydiene polymer such as a hydroxylated or other functional-group-containing polybutadiene polymer.

A pavement repair system is provided utilizing solid phase auto regenerative cohesion and homogenization by liquid asphalt oligopolymerization technologies. The system is suitable for use in repairing asphalt pavement, including pavement exhibiting a high degree of deterioration (as manifested in the presence of potholes, cracks, ruts, or the like) as well as pavement that has been subject to previous repair and may comprise a substantial amount of dirt and other debris (e.g., chipped road paint or other damaged or disturbed surfacing materials). A system utilizing homogenization by liquid asphalt oligopolymerization is suitable for rejuvenating or repairing aged asphalt, thereby improving properties of the paving material.

A pigment and method for making a pigment comprising a milled elastomer, wherein the milled elastomer has a D50 particle size of between about 5 and about 50 microns. A coating of the pigment has a smoothness of about 3 or less. The pigment is prepared by providing an elastomer; and milling the elastomer in the presence of milling media and solvent at a temperature from about 30 C. to about 70 C. The elastomer is insoluble in the solvent. The method for preparing the pigment from an elastomer comprises the steps of: providing an elastomer; and milling the elastomer in a media mill in the presence of milling media and solvent at a temperature from about 30 C. to about 70 C. The diameter of the milling media is from about 0.5 mm to about 10 mm, and the elastomer is insoluble in the solvent.

Described are sealing primer compositions that can be used to reduce paint defects such as pops or vapor boil on painted plastic substrates, as well as related methods for sealing plastic substrates, and scaled plastic substrates. Sealing primer compositions of the invention include a functionalized polydiene polymer such as a hydroxylated or other functional-group-containing polybutadiene polymer.

A method to transmit produced fluids in a system configured to recover hydrocarbons from a subterranean formation includes directing produced fluids through a pipe having a coating on its internal surface. The coating includes: a first polymeric layer on the internal surface, the first polymeric layer including a first viscoelastic material and having a hardness between 30 Shore A and 90 Shore D; a second polymeric layer between the internal surface and the first polymeric layer, the second polymeric layer including a second viscoelastic material stiffer than the first viscoelastic material; and a protective layer on the first polymeric layer and having a different composition than the first and second polymeric layers. The protective layer includes a plurality of particles having a Mohs hardness equal to or greater than 7. The method includes dissipating, via the first polymeric layer, forces from erodent materials in the produced fluids impacting the coating.