Basf Corporation

Fomo Products, Inc.

Icp Adhesives and Sealants, Inc.

Thomas L Fishback

Curtis J Reichel

Thomas B Lee

Stefan Gantenbein

John McQuaid

Sara Jonas

Douglas Caffoe

Duane A Heyman

Anthony James Taylor

Michael J Maczuzak

Gladys M Aviles

Paul Gregory Hurray

Kerry W Armes

Timothy Shoemaker

Christopher Miedza

Roeland Tuinman

Scott E Mizer

Adam J Jaglowski

James S Dailey

Donald L Christman

Brian T Milliff

Brain Milliff

Richard L Dansizen

Brian Milliff

John Mcquaid

John K Mcquaid

A foam spray gun is illustrated in which a third hose is attached to the gun for the application of either a liquid or a gas.

Foam dispensing gun

The invention described herein generally pertains to in-situ applications of liquid chemicals mixed and dispensed as a spray or a foam and more specifically, to in-situ application of polyurethane foam or froth and the measurement of the temperature of the chemicals used therewith employing temperature-indicating one-component or two-component foam gun nozzles and/or at least one temperature-indicating hose which employs at least one thermochromic material disposed within the foam gun nozzle and/or hoses.

Temperature indicating foam gun nozzles and hoses

The invention described herein generally pertains to temperature-indicating foam gun nozzles and/or at least one temperature-indicating hose which employs at least one thermochromic material disposed within said foam gun nozzle and/or hoses.

A process for cost-effectively and rapidly insulating a desired surface with spray foam insulation is described which includes the application of a polyurethane foam dispensed through heated conduits into a dispensing gun having a nozzle with essentially planar divergent lips having a triangular prism opening, the lips of the nozzle diverging at an angle of between about 5 and 35&#xb0; inclusive, more preferably between 8 to 15&#xb0; inclusive, most preferably 10 to 12&#xb0; inclusive, thereby achieving application rates which are in excess of 70 Ft/min, and optimally in excess of 100 Ft/min.

Method for rapid insulation of expanses

A disposable nozzle for an airless, polyurethane spray gun has an inlet chamber section sealingly latched to the gun nose for receiving polyurethane foam components, a mixing chamber section adjacent the inlet chamber containing a static mixer for mixing the polyurethane components and a dispensing tip section adjacent the mixing chamber for discharging the polyurethane as a spray. The dispensing tip has a longitudinally extending passage terminating at a rectangular opening in the tip defined by long side edges and short side edges. The length of the long side edges are generally maintained throughout the tip passage and approximate the diameter of the mixing chamber exit to produce a consistent rectangular fan spray pattern from the nozzle. Spray guide tabs extend from the long side edges of the rectangular tip opening to alleviate nozzle drip during dispensing.

Two-component dispensing gun nozzle

The present invention discloses a method for the formation of a flexible slabstock polyurethane foam having substantially improved indentation force deflection and resilience characteristics while maintaining the other physical properties. The method comprises the steps of reacting a triol polyoxyalkylene polyether polyol having a plurality of internal blocks formed from oxyalkylene monomers with a plurality of terminal caps comprising ethylene oxide attached to said plurality of internal blocks, the internal blocks containing at least 80% by weight propylene oxide based on the total weight of all of the oxyalkylenes in said internal blocks and the amount of ethylene oxide in the terminal caps comprising from 5 to 25% by weight based on the total weight of the polyol, said polyol having a degree of unsaturation of less than or equal to 0.015 meq/g KOH with a polyisocyanate component in the presence of a catalyst and water as a blowing agent at a level of between 3 to 7% by weight.

Use of low unsaturated polyether polyols in slabstock foam applications

Compositions of polytetramethylene ether glycols and polyoxy alkylene polyether polyols having a low degree of unsaturation

The present invention discloses a method for the formation of and a flexible slabstock polyurethane foam having substantially improved indentation force deflection and resilience characteristics while maintaining the other physical properties. The method comprises the steps of: forming a polyol blend having a nominal functionality of at least 2.3 by combining at least one polyether polyol having a plurality of terminal ethylene oxide caps of from 5 to 25% by weight based on the total weight of the polyether polyol, a molecular weight of greater than or equal to 4000 Daltons, and an unsaturation of greater than 0.04 meq/g KOH; at least one graft polyether polyol having an equivalent weight of greater than 1000 Daltons, a solids content of at least 28%, and a plurality of terminal ethylene oxide caps of from 5 to 25% by weight based on the total weight of the graft polyether polyol; and at least one very low unsaturated polyether polyol having an unsaturation of less than or equal to 0.018 meq/g KOH and a plurality of terminal ethylene oxide caps of from 5 to 25% by weight based on the total weight of the polyether polyol; providing at least one polyisocyanate component; providing a catalyst; providing water as a blowing agent at a level of between 3 to 7% by weight; and combining the polyol blend with the polyisocyanate component, the catalyst and the water to form a slabstock polyurethane foam.

Use of low unsaturated polyether polyols in high resilience slabstock foam applications

There is provided an sealant made with an isocyanate or hydroxyl terminated prepolymer made by reacting a stoichiometric excess of an organic polyisocyanate with polyols made of at least a polyoxyalkylene polyether triol or a mixture thereof with a polyoxyalkylene polyether diol. The triol or diol has within its structure the nucleus of an initiator compound, an internal blocks of oxypropylene groups, and external blocks of oxyalkylene groups, wherein the internal blocks of oxypropylene are between said nucleus and said external blocks, said external blocks are made of oxyalkylene groups derived from a C.sub.4 or higher alkylene oxide. The amount of the internal blocks of oxypropylene groups is from 25 weight percent to 80 weight percent based on the weight of all oxyalkylene groups and initiator in the prepolymer The triol or diol has a compatibility index of 25.degree. C. or less, and may be part of a two component or a one component moisture cured sealant.

Sealants made using low unsaturation polyoxyalkylene polyether polyols

There is now provided a sealant and elastomer made with a polyol having an unsaturation level of 0.04 to 0.07, manufactured with a basic salt of an alkaline earth metal or a basic salt of cesium, such as cesium hydroxide. The elastomers and sealants made therefrom exhibit an increasing modulus of elasticity when strained from 100 percent elongation to 300 percent elongation. The reduced unsaturation polyols are simple and inexpensive to make while imparting good physical properties to the sealants and elastomers.

Physical properties of sealants using polyols with reduced unsaturation

Thus, there is provided according to the present invention polyol compositions comprising

Composition of polytetramethylene ether glycols and polyoxy alkylene

Compositions of polytetramethylene ether glycols and polyoxy alkylene

There is now provided a method for making a polyisocyanate based rigid closed cell foam by reacting an organic isocyanate and a polyol composition containing a polyol having polyester linkages and a number average molecular weight of 400 or more, and at least about 8 php of a silicone-containing surfactant polymer, in the presence of an aliphatic or cycloaliphatic C.sub.4 -C.sub.7 hydrocarbon blowing agent. Either mixed into the polyol composition at the time of foaming, mixed into an isocyanate, or both, is an aliphatic or cycloaliphatic C.sub.4 -C.sub.7 hydrocarbon.

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Gibraltar, MI, United States of America

Thomas L Fishback