The Boeing Company

Larry K Olli

Diane C Rawlings

Kenneth A Krienke

Kay Youngdahl Blohowiak

Joseph H Osborne

Bruce K Keough

Robert James Miller

James M Kestner

Ronald R Stephenson

Alan G Burg

George Michael Granger

James Charles McGarvey

Patrice K Ackerman

Charles W Newquist

Kevin R Malone

G Micheal Granger

Harold G Pippin

David E Harden

Suzanne L B Woll

James Charles Mcgarvey

Multilayer riblet applique and methods of producing the same are described herein. One disclosed example method includes applying a first high elongation polymer material to a web tool, where the web tool is to be provided from a first roll, and heating, via a first heating process, the first high elongation polymer material. The disclosed example method also includes applying a second high elongation polymer material to the first high elongation polymer material, and heating, via a second heating process, the second high elongation polymer material. The disclosed example method also includes applying, via a laminating roller, a support layer to the second high elongation polymer material.

Multilayer riblet applique and methods of producing the same

A method of evaluating a coating applied to a surface comprises the step of applying the coating to the surface. The coating including a conversion gel to chemically bind the surface and an indicator substantially uniformly distributed throughout the coating wherein the indicator modifies an appearance of the coating. The method further comprising the step of determining whether the indicator is present on the surface at a substantially uniform concentration.

Colored coating and method

A composition for coating a surface includes a carrier and an indicator distributed throughout the carrier. The indicator is configured to modify an appearance of the coating. The indicator facilitates determining a thickness of the coating in response to the appearance of the coating.

Colored coating and formulation

Methods of forming a pressure sensitive adhesive (PSA) are provided. The methods may be suitable for aircraft exterior applications. A particular method includes mixing together an un-crosslinked acrylic adhesive, a solvent, and a polyisocyanate crosslinker to form a mixture. The method also includes driving off a portion of the solvent. The method further includes reacting the polyisocyanate crosslinker with the un-crosslinked acrylic adhesive. A resultant crosslinked adhesive exhibits a peel strength in a range between around 2 pounds per square inch and around 8 pounds per square inch at temperatures in a range between around 180 degrees Fahrenheit and around 250 degrees Fahrenheit.

Method for forming a pressure sensitive adhesive

A surface treatment, especially for titanium and aluminum alloys, forms a pigmented sol-gel film covalently bonded on the metal surface to produce desired color, gloss, reflectivity, electrical conductivity, emissivity, or a combination thereof usable over a wide temperature range. The coating retains its characteristics and impact resistance following exposures to temperatures at least in the range from &#x2212;321&#xb0; F. to 750&#xb0; F. An aqueous sol containing an organometallic alkoxide containing either Ti or Al and an organosilane with an organic acid catalyst and stabilizer is applied to etched or grit blasted substrates by dipping, spraying, or drenching, to produce bonds in a single application comparable in strength and performance to standard anodize controls. The sol-gel coating may be graded in its ceramic character by adjusting the organosilane component between TEOS and silanes that have more distinctive organic character by virtue of organic ligands attached to the silicon.

Pigmented organometallic sol

A pressure sensitive adhesive (PSA) suitable for aircraft exterior applications formed by reacting a cross-linker with an un-crosslinked adhesive can resist many aircraft fluids and can maintain a bond to a protective barrier film of an appliqu&#xe9; at low and high temperatures. An exemplary PSA includes at least a first release liner and a crosslinked adhesive releasably bonded thereto. The crosslinked adhesive suitably is formed by reacting a polyisocyanate crosslinker with an un-crosslinked acrylic adhesive. The PSA can exhibit a peel strength between around 2-8 psi at temperatures between around 180-250 degrees Fahrenheit. In an exemplary method to provide a PSA, an un-crosslinked acrylic adhesive, a solvent, and a polyisocyanate crosslinker are mixed together. The mixture is reacted on a release liner. A portion of the solvent is driven off, and the polyisocyanate crosslinker is reacted with itself and with reactive groups remaining on the un-crosslinked acrylic adhesive.

Pressure sensitive adhesive suitable for aircraft exterior applications

A surface treatment, especially for titanium and aluminum alloys, forms a pigmented sol-gel film covalently bonded on the metal surface to produce desired color, gloss, reflectivity, electrical conductivity, emissivity, or a combination thereof usable over a wide temperature range. The coating retains its characteristics and impact resistance following exposures to temperatures at least in the range from &#x2212;321&#xb0; F. to 750&#xb0; F. An aqueous sol containing an alkoxyzirconium and an organosilane with an organic acid catalyst and zirconium stabilizer is applied to etched or grit blasted substrates by dipping, spraying, or drenching, to produce bonds in a single application comparable in strength and performance to standard anodize controls. Parameters affecting performance include the sol composition, the Si/Zr ratio, the ratio of sol ingredients, the concentration of the sol, the carrier solvent, solution age, catalysts, surface pretreatment, application method, curing process, and primer used. The sol-gel coating may be graded in its ceramic character by adjusting the organosilane component between TEOS and silanes that have more distinctive organic character by virtue of organic ligands attached to the silicon.

Pigmented alkoxyzirconium sol

Methods for formulating and depositing a sol-gel coating onto a surface of a solar cell to provide improved radiation damage resistance. The sol-gel contains a solvent, alkoxyzirconium and an organosilane, with an organic acid catalyst and optionally a surfactant. The sol-gel coating can be deposited by spraying and the sol-gel coating is cured. The invention reduces manufacturing steps and overall weight of the solar cell array.

Sol-gel coatings for solar cells

A surface treatment, especially for titanium and aluminum alloys, forms a pigmented sol-gel film covalently bonded on the metal surface to produce desired color, gloss, reflectivity, electrical conductivity, emissivity, or a combination thereof usable over a wide temperature range. The coating retains its characteristics and impact resistance following exposures to temperatures at least in the range from &minus;321&deg; F. to 750&deg; F. An aqueous sol containing an alkoxyzirconium and an organosilane with an organic acid catalyst and zirconium stabilizer is applied to etched or grit blasted substrates by dipping, spraying, or drenching, to produce bonds in a single application comparable in strength and performance to standard anodize controls. Parameters affecting performance include the sol composition, the Si/Zr ratio, the ratio of sol ingredients, the concentration of the sol, the carrier solvent, solution age, catalysts, surface pretreatment, application method, curing process, and primer used. The sol-gel coating may be graded in its ceramic character by adjusting the organosilane component between TEOS and silanes that have more distinctive organic character by virtue of organic ligands attached to the silicon.

Method for making a tetraketimine

Thin film metal particulates are removed from FEP sheetstock cheaply and quickly by immersing the coated FEP first in a base and then in an acid. Occasionally, ultrasonic vibration of the FEP may also be required. The particulates are useful as paint pigments when isolated and conversion coated. The FEP is reusable. A preferred binder for carrying the pigments is a two-component system having a tetraketimine and an isocyanate.

Coating

A process of waterproofing alumina-rich or silica-rich fibrous thermal insulation material, the process including the steps of:

Efficient, environmentally acceptable method for waterproofing

Aliphatic tetraketimine of the present invention are a novel class of compounds represented by the formula: ##STR1## wherein Et is ethyl, Me is methyl, and R is a residue of an aliphatic diisocyanate. The tetraketimine is made by condensing a novel ketimine with a diisocyanate. The ketimine has a free secondary amine after a polyamine selected from the group consisting of:

Ketimine

Sononochemistry permits extremely rapid cooling to produce nanoscale particles. If magnetic, these particles are valuable for magnetic recording media, manufacture of permanent magnets, and other uses. In the present invention, we sonicate neat metal carbonyl to produce particles which we separate, generally magnetically, from the metal carbonyl, thereby making the production process as simple as possible and continuous.

Growing community of inventors

Seattle, WA, United States of America

Larry K Olli