Dow Global Technolgoies LLC

Flexible Products Company

Rohm and Haas Company

Ddp Specialty Electronic Materials Us, LLC

Insta-foam Products, Inc.

Dow Global Technology Inc.

The Dow Chemical Company

Deborah A Schutter

Robert G Braun

Jess Maruri Garcia

Diana Dobrez-Florez

Mark F Sonnenschein

Michael Damian Bowe

Stéphane Costeux

Xin Jin

Steven P Crain

Janah Cecelia Szewczyk

Kshitish A Patankar

Megan Marie Thomas

Srdjan Kisin

Beverly J Selle

Gina Pietrzyk

Dawn Kissack

Beverly Selle

Kshitish K Patankar

Megan Thomas

A one-component foam formulation contains a pre-polymer and a blowing agent, the pre-polymer being the reaction product of a polymeric polyol component having an average hydroxyl functionality in a range of 2.3 to 2.85 hydroxyl functionalities per molecule as determined using ASTM D4274-11 (method D); and where the polymeric polyol component has an effective average molecular weight in a range of 4500 and 10000 grams per mole, one or more than one type of chain extender molecule having 3 to 6 carbon atoms and 2 to 4 reactive functionalities selected from a group consisting of hydroxyl and amine functionalities per molecule, a polyisocyanate having a functionality in a range of 2.1 to 3.0 &#x2014;NCO functionalities per molecule as determined by ASTM D7252-06(2011)e1; and a catalyst.

One-component fenestration foam formulation demonstrating low initial shrinkage

The present invention provides a self-collapsing, moisture curable one component polyurethane foam (1K PU) composition from moisture curable polyurethane prepolymers and to methods of making weather resistant barriers and formed in place gaskets therefrom. The foam compositions are packed under pressure with a blowing agent. In the methods, the foams are applied to gaps in the exterior (sheathing) of a building under construction and collapse on cure to enable application an aqueous weather barrier coating thereover within an hour. The foams also cure when applied on or adjacent a structure to form a foam gasket that enables installation of additional structural elements over or adjacent the foam gasket without bowing or damage to the structure treated.

Weather-resistive barriers from self collapsing polyurethane foams

Polymer foam is made from a two-component foam system. The foam system includes an A-side component which contains a multifunctional Michael acceptor and a blowing agent that has a boiling temperature in the range &#x2212;40&#xb0; C. to +100&#xb0; C. The system also includes a B-side component that contains a multifunctional carbon-Michael donor, a surfactant and a blowing agent that has a boiling temperature in the range &#x2212;40&#xb0; C. to +100&#xb0; C. The viscosities of each of the components are 2,500 cPs or lower. Foam is made by separately pressurizing the components, then separately depressurizing them so they each at least partially expand. The partially expanded materials are then combined in the presence of a carbon-Michael reaction catalyst to form a reaction mixture which is cured to form the polymer foam.

Non-isocyanate rigid polymer foams by carbon-Michael addition and foaming process

Single component compositions for making a moisture-cured polyurethane foam are disclosed. Foam produced from the compositions of the present invention produce very low foaming pressure due to their 60-95 percent open-cell content. After these compositions are applied and cure, they form a permanent seal around the perimeter of installed fenestration products.

Polyurethane foam composition

A kit of parts useful for sealing a crack in a concrete surface by injecting a sealing material into the crack including a plurality of injection port members and deformable metal crimping sleeves. Each injection port member has a flat base which is attached to the concrete surface by a settable adhesive compound. A disposable, aerosol-charged, supply container having a one-component polyurethane prepolymer without any granular material entrained therein.

Kit of parts for filling cracks with foamable polyurethane prepolymer

A method for filling cracks in concrete surfaces using a one-component, hydrophilic polyurethane prepolymer without the addition of any granular impregnating agents The prepolymer is provided in a hand-held aerosol container and is injected into the cracks through hollow injection ports that are adhered in place on the surfaces over the cracks and subsequently closed off when filled. The crack is filled from the bottom up to prevent the formation of air pockets in the crack.

Method for filling cracks in a concrete structure with foamable polyurethane prepolymer

The present invention discloses a foam frothing alternative for blowing or frothing single component foams using gases which are incapable of being liquified within the limits of DOT aerosol cans, referred to herein as non-liquefiable gases. In this invention, it is demonstrated that non-liquefiable gases such as CO.sub.2 and N.sub.2 O can be used to provide foams using conventional single component foam chemical raw materials. The present invention provides an adhesive/sealant, expanded by a non-liquefiable gas propelled from a container initially and expanded by a blowing agent consisting primarily or exclusively of a non-liquefiable gas and formulated from a moisture curable polyurethane prepolymer using a low molecular weight isocyanate of two or more functionality. In one or more variations, the compositions of the present invention contain solubility enhancers for non-liquefiable gases such as CO.sub.2 or supplemental propellants/liquefiable blowing agents, as well as other additives such as, for example, catalysts, fire retardants, and surfactants which include, but are not limited to cell openers.

Expansible sealant compositions and blowing agents

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Minooka, IL, United States of America

Deborah A Schutter