Shah, Pankaj;

Moisture-curing adhesives

An improved urethane reactive hot-melt adhesive is provided that improves the green strength of bonded joints is provided. Also provided are an improved method of bonding articles together with such an adhesive and improved composite articles bonded together with such an adhesive.

• Printer/powered peripheral node system Cart for transporting computer components
• Surgical handpiece chuck and blade Kinases and uses thereof
• Spring powered swing Dielectric barrier discharge lamp
• Partial width oven rack Foldable cleaning implement
• Portable external tool tray assembly Reader-printer
• Extruded gasket for cored manholes Particle analyzing apparatus
• Osmotic dispenser Compact millimeter wave source
• Energy trap Motor control apparatus
• Clock controlled pulse width modulator Deodorant method
• Brassiere sizer Transistor mounting device
• Low-pressure moulding process and apparatus Method of manufacturing brushing apparatus
• Door stop Diagnostics for resistance based transmitter
• Solar heat collector Electric lamp with metal shell
• Multifunction fastening apparatus Engine block
• Behind-the-ear hearing aid Hair curling apparatus
• Container stand 2,2-Dimethylcyclopropane-carboxylic acid derivatives
• Optical component packaging Electric safety fuse
• Insulated heat shrink tool holder Sulfated oligosaccharides having anticoagulant/antithrombotic activity
• Printing apparatus Dyeing process and auxiliary
• Feedback latch and method therefor Bearing device for capstan shaft
• Ordered packing Single-use syringe with aspirating mechanism
• Top for a convertible vehicle N-Methyl-N-(sulphonic acid amide-n'-sulphenyl)-carbamic acid esters
• Diving helmet Flow-control device
• Crosslinked polyacrylamides containing silyl groups Single-pass inkjet printing
• Electrical connector Opto-electric device
• Tape recorder Window shutter
• Imaging spectroradiometer Platelet activating antagonists
• Multi-part pressure chuck Surface acoustic wave device
• Matrix arithmetic apparatus Drive assembly for inboard speedboat
• Cosmetic composition Air flow rate meter
• Stripper composition Tennis ball pouch and holder
• Virtual channel DRAM Automatic vehicle washing apparatus
• Pump drive circuit

I claim:

1. A composition useful as an adhesive comprising

(a) 1% to 50% by weight based on the weight of said composition of cristobalite silica, and

(b) 50% to 99% by weight based on said composition of moisture curable prepolymer,

wherein said moisture curable prepolymer comprises at least one urethane prepolymer comprising the reaction product of at least one polyol and at least one polyfunctional isocyanate.

2. The composition of claim 1 wherein the amount of said cristobalite silica is 9% to 16% by weight based on said composition.

3. The composition of claim 1 wherein said cristobalite silica is a powder with mean particle size of from 1 to 3 micrometers and maximum particle size of 25 micrometers.

4. The composition of claim 1 wherein said cristobalite silica is a powder with mean particle size of from 1 to 3 micrometers and maximum particle size of 25 micrometers and wherein the amount of said cristobalite silica is 9% to 1% by weight based on the weight of said composition.