摘要:
A process of bonding a metal substrate to a non-halogenated polymer, especially of bonding a polyolefin overcoat to a metallic tube or pipe, using an epoxy-based adhesive which comprises at least one salt of a metal ion M in an oxidation state of n which has a standard reduction potential E0M more positive than the standard reduction potential of the surface of the metal substrate; an object comprising a metal substrate and a non-halogenated polymer bonded together by this process; a tube or pipe made of a metal substrate onto which a layer of a non-halogenated polymer is bonded by a cured epoxy-based adhesive.
摘要:
The present invention relates to cationically curable compositions for curing on a surface comprising a cationically curable component, and an initiator component capable of initiating cure of the cationically curable component. The initiator comprises at least one metal salt, which is chosen so that it is reduced at the surface, and where the standard reduction potential of the initiator component is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the initiator component of the composition is reduced at the surface, thereby initiating cure of the cationically curable component of the composition. No catalytic component is required in the composition for efficient cure.
摘要:
The present invention relates to cationically and radically curable coating compositions for coating a surface. The coating compositions consist essentially of a radically or cationically curable monomer, and a metal salt. The metal salt is chosen so that it is reduced at the surface to be coated, and where the standard reduction potential of the metal salt is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the composition is reduced at the surface, thereby initiating cure of the curable component in the compositions. Redox mediated cure of the coating compositions results in a coating or film on the surface. The invention also provides for functionalization of surfaces. Cross-linking of the coating occurs directly on the surface.
摘要:
The present invention relates to cationically curable compositions for curing on a surface comprising a cationically curable component, an accelerator species comprising at least one vinyl ether functional group and an initiator component capable of initiating cure of the cationically curable component. The initiator comprises at least one metal salt, which is chosen so that it is reduced at the surface, and where the standard reduction potential of the initiator component is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the initiator component of the composition is reduced at the surface, thereby initiating cure of the cationically curable component of the composition. The accelerator species comprising at least one vinyl ether functional group greatly enhances the rate of cure. No catalytic component is required in the composition for efficient cure
摘要:
The present invention relates to cationically curable compositions for curing on a surface comprising a cationically curable component, an accelerator species comprising at least one vinyl ether functional group and an initiator component capable of initiating cure of the cationically curable component. The initiator comprises at least one metal salt, which is chosen so that it is reduced at the surface, and where the standard reduction potential of the initiator component is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the initiator component of the composition is reduced at the surface, thereby initiating cure of the cationically curable component of the composition. The accelerator species comprising at least one vinyl ether functional group greatly enhances the rate of cure. No catalytic component is required in the composition for efficient cure.
摘要:
The present invention relates to radically curable compositions for curing on a surface comprising a radically curable component, and an initiator component capable of initiating cure of the radically curable component. The initiator comprises at least one metal salt and a free radical generating component. The metal salt of the composition is chosen so that it is reduced at the surface, where the standard reduction potential of the metal salt is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt is reduced at the surface, and interacts with the free radical generating component, thereby initiating cure of the radically curable component of the composition. No catalytic component is required in the composition for efficient curing.
摘要:
A drum assembly for use with a coupling arrangement includes an outer member and an inner member that is mountable on the outer member. The outer member includes first and second annular portions connected together. The first annular portion has a first mating surface that defines a first opening having a first diameter, and the second annular portion defining a second opening having a second diameter that is smaller than the first diameter. The inner member includes a generally radially extending portion and a flange portion extending generally axially from the radially extending portion. The radially extending portion includes a second mating surface that is engageable with the first mating surface to interlock the inner and outer members together. When the inner member is mounted on the outer member, the radially extending portion extends into the first opening, and the flange portion extends into the second opening.
摘要:
Methods and apparatus for registration of digital images of a plurality of dental surfaces of a patient. Multiple dental surfaces are separately scanned and digitized, where each of the surfaces has at least one marked area. All marked areas are optically acquired, creating digitized images of the plurality of dental surfaces, which are then registered in a common reference frame on the basis of a specified marked areas. In some cases, a first dental surface is disposed on an upper dental arch and a second dental surface is disposed on a lower dental arch. Marked contact areas may be indicative of local occlusion pressure.
摘要:
A system for cleaning totes is disclosed in which each tote has a fill opening at its top and a dispensing valve, both of which are open to an interior chamber of the tote. The system includes a conveyor line having a receiving end and a discharge end and which is adapted to transport the totes from the receiving and to the discharge end. At a first station along the conveyor, the tote is initially drained of any remaining fluid within its interior and the tote is then moved to a second station. At the second station, a wash solution is cycled through the tote in order to clean the interior of the tote. The wash solution is recycled and appropriate fillers are used to remove the impurities from the wash solution. The tote then progressively moves through three rinse stations along the conveyor line in which each rinse station includes a lid attachable to the fill opening of the tote and which progressively rinses the interior of the tote. Thereafter, a dry station forces heated and filtered air through the interior of the tote thus completely drying the entire interior of the tote. Thereafter, a cleaned lid for the tote is replaced onto the fill opening together with the cleaned valve assembly and the now clean tote exits from the discharge end of the conveyor line.
摘要:
A drum assembly for use with a coupling arrangement includes an outer member and an inner member that is mountable on the outer member. The outer member includes first and second annular portions and an intermediate portion extending between the annular portions. The first annular portion has a first mating surface that defines a first opening having a first diameter, the second annular portion defines a second opening having a second diameter that is smaller than the first diameter, and the intermediate portion defines a shoulder. The inner member includes a generally radially extending portion having a generally axially facing surface and a second mating surface that is engageable with the first mating surface to interlock the inner and outer members together. When the inner member is mounted on the outer member, the radially extending portion extends into the first opening, and the generally axially facing surface engages the shoulder.