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.

• Multifunction fastening apparatus Small diameter impact boring tool
• Tape recorder Futurebus interrupt subsystem apparatus
• Filter system for large containers Pneumatic hog ring gun
• Atmometer covering and method Golf game
• N-Methyl-N-(sulphonic acid amide-n'-sulphenyl)-carbamic acid esters Transformer bar connector cover
• Composite rivet Parking meter advertising device
• Dynamic image enhancer for fiberscopes Pump drive circuit
• Microphone suspension assembly Partial width oven rack
• Ball rolling toy Cosmetic composition
• Horn switch Passive peak deflection sensor
• Snap-in fastener Kinases and uses thereof
• Water features Light converting type detectors
• Adjustable storm garage door Triple epicyclic differential transmission
• Contact structure production method Printer/powered peripheral node system
• Platelet activating antagonists Panel mounting
• Insulated heat shrink tool holder Solar heat collector
• Method of manufacturing hollow rods Rejector fuse clip assembly
• Electrical portable air compressor Apparatus for treating work objects
• Massage system Air flow rate meter

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.