Other

Dupont Safety & Construction, Inc.

Mark William Andersen

Reiyao H Zhu

Christopher William Newton

Mark Theodore Aronson

B Lynne Wiseman

Thomas Wayne Steinruck

Gerard Hecquet

Michel Simon

Roland Kotwica

Mireille Stojanovic

Charlotte Pham

Rashmikant M Contractor

Daniel Campos

Jean-Pierre Schirmann

Lawrence P Evensen

John Vito Biondo

Richard Spindel

Jean B Myers

Rashmikant Maganlal Contracter

Processes for forming a yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition; the regions being distinct and present in the bicomponent filaments in a sheath-core structure or a side-by-side structure; wherein the first polymer composition comprises aramid polymer comprising 5 to 10 weight percent homogeneously dispersed discrete carbon particles and the second polymer composition comprises aramid polymer being free of discrete carbon particles and having at least one homogeneously dispersed masking pigment, the yarn having a total content of 0.5 to 5 weight percent discrete carbon particles.

Processes for forming carbon-containing aramid bicomponent filament yarns

A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition, each of the first and second regions being distinct in the bicomponent filaments; each bicomponent filament comprising 5 to 60 weight percent of the first polymer composition and 95 to 40 weight percent of the second polymer composition; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent discrete homogeneously dispersed carbon particles and the second polymer composition comprises modacrylic polymer being free of discrete carbon particles; the yarn having a total content of 0.1 to 5 weight percent discrete carbon particles.

Process for forming a yarn comprising bicomponent filaments

A yarn comprising a plurality of bicomponent filaments having a first region comprising a first polymer composition and a second region comprising a second polymer composition; the regions being distinct and present in the bicomponent filaments in a sheath-core structure or a side-by-side structure; wherein the first polymer composition comprises aramid polymer containing 0.5 to 20 weight percent homogeneously dispersed discrete carbon particles and the second polymer composition comprises aramid polymer being free of discrete carbon particles and having at least one homogeneously dispersed masking pigment, the yarn having a total content of 0.5 to 5 weight percent discrete carbon particles.

Carbon-containing aramid bicomponent filament yarns

Carbon-containing modacrylic and aramid bicomponent filament yarns

In some embodiments, an electric guitar interface system, includes a first touchpad of an electric guitar configured to detect a user input, and a control unit coupled to the first touchpad. The control unit may be configured to set a first parameter of the electric guitar's output as a function of a position of the user input along the first axis. The first parameter includes a first pickup gain. The first pickup gain may be for at least one of a bridge pickup, a middle pickup, and a neck pickup. The first parameter includes a second pickup gain.

Electrical guitar interface method and system

A deck post (or brace) having a non-circular cross-section is secured to a roof deck. A lead pipe jack (sleeve) is slid over the post. A waterproofing assembly having a collar and a skirt is provided; the collar has an opening with generally the same non-circular cross-section as that of the post. The collar opening is positioned on the deck post, and the unit is slid down the post until the collar is at the top of the sleeve, the skirt extending down over the sleeve. A clamp is then positioned and tightened around the collar to provide a watertight seal on the deck post. When the post is already installed on a roof deck and the sleeve and the waterproofing assembly cannot be slid into place on the post, a modified retrofit waterproofing assembly and sleeve are used to provide the waterproofing. The modified sleeve is a split lead flashing jack with an open seam on one side. The sleeve is opened up, wrapped around the post and soldered closed. The modified waterproofing assembly has a split joint through the skirt and collar. To position this assembly on the post at the top of the split lead flashing jack, the joint is opened up, the assembly wrapped around the post and the slip joint closed with a watertight flap. A locking closure can be provided having a locking clasp and a locking slot. Another alternative waterproofing assembly forms the collar as a plug separate from the skirt; the skirt is opened and the plug inserted therein. This arrangement allows a plug having the desired opening configuration to be selected from an inventory of different plugs and used with a single skirt design. Another alternative of the waterproofing assembly provides a series of flanged tabs on the top edge of the collar for connecting to the collar plug. The flanged tabs may each have a projection on them which increases the pull-out resistance between a connected skirt and collar. The collar plug may also have a series of cavities which line up with the flanged tabs of the skirt. The collar plug may have a recess for the clamp. As an alternative assembly, multiple skirts can be connected together using their locking clasps and locking slots and the resulting larger skirt can then be connected to a collar.

Waterproof roof deck post construction and method

An improved method for the selective vapor phase oxidation of propylene to acrolein in a recirculating solids reactor system using a bismuth molybdate multimetal oxide involving specific reactant concentrations (preferably 5 mol % to 30 mol % propylene, 0 to 20 mol % oxygen, and the remainder inert gas), particle size (1 to 300 micrometers), temperature (250 to 450&deg; C.) and gas (1 to 15 seconds) and solids (2 to 60 seconds) residence times. Such a process leads to improved selectivity and propylene conversion.

Vapor phase oxidation of propylene to acrolein

An improved method for the selective vapor phase oxidation of acrolein to acrylic acid in a recirculating solids reactor system using a particulate molybdenum vanadate multimetal oxide as oxidant involving specific reactant concentrations (preferably 5 mol % to 30 mol % propylene, 0 to 20 mol % oxygen, 0 to 70 mol % water, and the remainder inert gas), solids particle size (20 to 300 micrometers), temperature (250 to 450&deg; C.) and gas (1 to 15 seconds) and solids (2 to 60 seconds) residence times. Such a process leads to improved selectivity, conversion and solids conversion ratio.

Vapor phase oxidation of acrolein to acrylic acid

An improved method for manufacturing acrylic acid by vapor phase oxidation of propylene in a single step or reaction stage using as solid phase oxidant a mixture of two particulate solids comprising a bismuth molybdate multimetal oxide (e.g., Mo,Co,Bi,Fe,W,Si,K,O,) and a molybdenum vanadate multimetal oxide (e.g., Mo,V,Sr,W,Cu,O,). Such a process is advantageously carried out in a recirculating solids reactor system wherein the particulate mixture of solids in an oxidized state reacts with a feed gas containing propylene in a vertical riser reactor and after separation from the acrylic acid gaseous product the particulate mixture of solids in a reduced state is regenerated by contact with an oxygen containing gas in a separate regeneration reactor before recirculation to the riser for further reaction.

Growing community of inventors

Charlottesville, VA, United States of America

Mark William Andersen