Enthone Incorporated

Other

The United States of America As Represented by the United States

128 Technology, Inc.

Thomas E Sullivan

Thomas W Bleeks

Oscar L Wright

Robert F Penfield

Abilash Menon

Anna Yungelson

Scott A McCulley

Juan B Haydu

John A Pardini

Frank A Brindisi, Jr

Francisco Jose Mendez Cirera

Mark A Kulak

Embodiments of the present invention provide for continuity of 'stateful' routing sessions in the presence of source network address translation (NAT). Specifically, a stateful routing session may be moved from one routing path to another routing path, e.g., due to a routing change in the communication network, where the routing paths have different source NAT status. For example, the stateful routing session may be moved from a path having no source NAT to a path having source NAT, from a path having source NAT to a path having no source NAT, or from paths having different source network address translations. When a stateful routing session is moved from an existing routing path to a new routing path, the routers detect the routing change based on the change in source NAT status using a special link monitoring protocol. Upon detecting the change in source NAT status, session metadata is included in at least the first packet forwarded following detection of the change in source NAT status so that the stateful routing session can continue without interruption.

Session continuity in the presence of network address translation

The permanganate process for treating plastics, e.g., printed circuit boards, to enhance the adhesion of metal plating to the plastic is improved by employing electrolysis to either maintain a certain permanganate level in the operating bath or to regenerate a spent or used bath.

Process for treating plastics with alkaline permanganate solutions

Acidic stripping solutions comprising hydrogen peroxide as oxidant, either at least one phosphorous-oxy acid, or the addition of nitric acid, together with accelerators and surface active agents, are effective for the rapid and selective removal of protective hard surface coatings and nickel-base brazes from a variety of metal surfaces.

Peroxide selective stripping compositions and method

A method for the regeneration of a spent aqueous ammonium bifluoride-hydrogen peroxide solder stripping solution containing contaminant tin ions comprising adding potassium ions to the solution to precipitate a filterable tin-potassium compound.

Process for regenerating solder stripping solutions

Improved solutions are provided for selectively stripping alloys containing nickel with gold, phosphorous or chromium from substrates formed from alloys containing iron with chromium and in some instances nickel, or nickle rich, chromium bearing alloys, some of which also contain iron. These solutions comprise concentrated nitric acid, at least one chloride salt, an organic corrosion inhibitor and, optionally, an organic surface active agent. An improved method utilizing the solutions of the invention is also provided and facilitates stripping of these alloys in substantially reduced time, without degradation of the underlying substrate.

Solution and method for selectively stripping alloys containing nickel

High molecular weight polymeric materials, which have incorporated within their structure modified protein(s), carbohydrate(s), nucleic acid(s), and/or lipid(s), capable of either transferring to blood, other biological fluid(s) or tissue(s), a desired substance(s), such as, for example, oxygen, selected antibody(ies), trace element(s), radioactively tagged structure(s), nutrient(s), enzyme(s), and/or other organic or inorganic chemical(s), drug(s) and pharmaceutical(s) of therapeutic value, or of extracting from blood, other biological fluid(s) or tissue(s), an undesired substance(s), such as, for example, carbon dioxide, toxic metabolic product(s), drug(s), and/or other organic or inorganic chemical(s), element(s), or deleterious substance(s). These polymeric materials are compatible with blood, other biological fluid(s) and tissue(s). They may be modified or combined so that the transfer of desired substance(s) to the blood, biological fluid(s) or tissue(s) can be carried out either simultaneous with, prior to, or subsequent to the extraction of undesirable substance(s) from blood, biological fluid(s) or tissue(s).

Bloodcompatible functional polymers

The present invention pertains to a method for removing urea and creatinine from aqueous solutions by contacting such solutions with a polymer selected from the group consisting of: p-mercapto polystyrene; p-mercaptoacetic polystyrene; dinitro-p-mercaptoacetic polystyrene; p-nitropolystyrene; and p-amino polystyrene.

Method of removing urea and/or creatinine

A safety test facility for testing sodium-cooled nuclear reactor components includes a reactor vessel and a heat exchanger submerged in sodium in the tank. The reactor vessel and heat exchanger are connected by an expansion/deflection pipe coupling comprising a pair of coaxially and slidably engaged tubular elements having radially enlarged opposed end portions of which at least a part is of spherical contour adapted to engage conical sockets in the ends of pipes leading out of the reactor vessel and in to the heat exchanger. A spring surrounding the pipe coupling urges the end portions apart and into engagement with the spherical sockets. Since the pipe coupling is submerged in liquid a limited amount of leakage of sodium from the pipe can be tolerated.

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Hamden, CT, United States of America

Thomas E Sullivan