Abstract: An assembly comprises a component of a plasma process chamber, a thermal source and a polymer composite therebetween exhibiting a phase transition between a high-thermal conductivity phase and a low-thermal conductivity phase. The temperature-induced phase change polymer can be used to maintain the temperature of the component at a high or low temperature during multi-step plasma etching processes.

Abstract: An assembly comprises a component of a plasma process chamber, a thermal source and a polymer composite therebetween exhibiting a phase transition between a high-thermal conductivity phase and a low-thermal conductivity phase. The temperature-induced phase change polymer can be used to maintain the temperature of the component at a high or low temperature during multi-step plasma etching processes.

Abstract: A damper or muffler assembly for a cymbal uses a remote pedal for damping. A bicycle type caliper brake assembly is mounted to post mounting hardware for a drum set, so that the caliper can be attached to a supporting post for the cymbal. The caliper closes into a clamping position so as to absorb sound-producing vibration or completely render the cymbal immovable, according to the degree of clamping force applied. The caliper can be mounted to free-standing cymbals, high hat cymbals and other types of cymbals, and is particularly useful for use with type of cymbal used in combination with a set of drums and played by striking the cymbal with a drumstick.

Abstract: A structure of solid material for use in making an investment casting mold and a method of making it are disclosed. The structure has a plurality of levels of spaced plates arranged such that in plan view the plates define a plurality of adjoining polygonal formations. The method includes solidifying portions of a body of liquid material to provide a first set of spaced plates, solidifying further portions at different levels to provide at least a second set of plates oriented transversely of plates of the first set. Adjacent sets are interconnected along side edges in essentially point connections.

Abstract: The invention relates to a crosslinkable polymer for use in optics and non-linear optics, which comprises at least one chromophore, characterized in that it has, on at least two of its ends, at least one reactive end group of a different chemical type from the group predominantly used in polymerization and the preparation of a polymer skeleton. Said reactive end group comprises at least one CC, CN, CS, SS or NS double bond and/or triple bond, and/or an epoxy group and/or a thiol group or a derivative of said groups, and the polymerization groups are selected from at least one of the following groups: urethane, ester, amide, imide, ether, carbon-carbon, sulfide, silane and siloxane, urethane and ester groups being particularly preferred. Application in optical and opto-electronic materials and devices.

Abstract: The present invention relates to a new polyesterimide of the type containing ester repeat functional groups E=--CO--O--, imide repeat functional groups I: ##STR1## and at least one chromophore, characterized in that it contains a quantity of recurrent amide functional groups capable of ring closure to imides which is smaller than or equal to 5 mol % relative to the sum of the imide functional groups and of the amide functional groups capable of ring closure to imides, which are present, and in that the polymerization functional groups consist essentially of E functional groups.This polyesterimide is preferably free from amide functional groups capable of ring closure to imides.One of the processes for obtaining this polyesterimide constitutes another subject-matter of the invention.Such a polymer is advantageously capable of behaving like a material that is transparent and/or active in nonlinear optics.