Abstract: Elongated microcapsules, such as elongated hydrophobic-core and hydrophilic-core microcapsules, may be formed by pulse stirring an emulsion or shearing an emulsion between two surfaces moving at different velocities. The elongated microcapsules may be dispersed in a coating formulation, such as paint.

Abstract: A spacecraft and spacesuit having a radiation shield are disclosed. The shield comprises a hydrogen-containing material encapsulated or bound in a polymer. The hydrogen-containing material has a higher hydrogen content than polyethylene. The hydrogen-containing material may be: encapsulated in a polymer container, sandwiched between layers of polymer, mixed with a polymer as binder, or held in the pores of a polymer foam. The hydrogen may be a hydride or borohydride such as beryllium borohydride, ammonium octahydrotriborate, lithium borohydride tetramethyl ammonium borohydride and beryllium hydride. Methods of manufacturing the shield are also disclosed.

Abstract: A spacecraft and spacesuit having a radiation shield are disclosed. The shield comprises a hydrogen-containing material encapsulated or bound in a polymer. The hydrogen-containing material has a higher hydrogen content than polyethylene. The hydrogen-containing material may be: encapsulated in a polymer container, sandwiched between layers of polymer, mixed with a polymer as binder, or held in the pores of a polymer foam. The hydrogen may be a hydride or borohydride such as beryllium borohydride, ammonium octahydrotriborate, lithium borohydride tetramethyl ammonium borohydride and beryllium hydride. Methods of manufacturing the shield are also disclosed.

Abstract: Elongated microcapsules, such as elongated hydrophobic-core and hydrophilic-core microcapsules, may be formed by pulse stirring an emulsion or shearing an emulsion between two surfaces moving at different velocities. The elongated microcapsules may be dispersed in a coating formulation, such as paint.

Abstract: Ion exchange membranes or films are made from a solution of perfluorinated cycloalkanes, perfluorinated aromatic compounds and perfluorotrialkyl amines having a critical temperature greater than 150.degree. C. and certain carboxylic fluorinated polymers having an equivalent weight greater than 900. A process for repairing ion exchange membranes and films by spray coating the surface of the membrane or film with the solution is also claimed. The ion exchange membranes and films are useful in chloroalkali cells or fuel cells.

Abstract: Ion exchange membranes or films are made from a solution of perfluorinated cycloalkanes, perfluorinated aromatic compounds and perfluorotrialkyl amines having a critical temperature greater than 150.degree. C. and certain carboxylic fluorinated polymers having an equivalent weight greater than 900. A process for repairing ion exchange membranes and films by spray coating the surface of the membrane or film with the solution is also disclosed. The ion exchange membranes and films are useful in chloralkali cells or fuel cells.

Abstract: A sensor which allows dielectric measurements to be made on a high temperature product such as a molten plastic flowing in a conduit. It comprises a ceramic cylinder with an interdigitated electrode capacitor patterned into the inside wall. Uses of the sensor include continuous determination of copolymer composition and polymer viscosity (molecular weight) in a completely non-obstructive manner.

Abstract: A coated cation exchanged fabric having as its base a fluorinated cation exchange resin, oriented at least 1x, in alkali metal salt form and as its coating an unoriented or oriented melt-fabricable precursor of the same salt-form fluorinated cation exchange resin. The invention also includes various processes for making the coated fabric.

Abstract: A fluorinated cation exchange membrane made using reinforcement of oriented, hydrolyzed fabric of a cation exchange copolymer, the fabric having a coating of a melt-processible precursor or derivative of a fluorinated cation exchange resin on at least one surface or throughout.

Abstract: A sheath/core yarn having as its core a fluorinated cation exchange resin, oriented at least 1x, in alkali metal salt form and as its sheath an unoriented or oriented melt-fabricable precursor or derivative of the same salt-form fluorinated cation exchange resin. The invention also includes various processes for making the sheath/core yarn.

Abstract: A fluorinated cation exchange membrane comprising one or more layers of an ion-conductive film and where one or more layers has adhered therein a fabric reinforcement made from fully ion conductive yarn that is oriented and then at least partially hydrolyzed, the film and the yarns being made of melt-fabricable fluorinated cation exchange resin precursors having a mole ratio of non-functional to functional monomer of 2.8-11.8:1, the mole ratio in the film adjacent to the fabric being different from that of the fabric by no more than three units, where the membrane is employed in the process of electrolyzing alkali metal halides.