The Dow Chemical Company

Dow Global Technolgoies LLC

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Ddp Specialty Electronic Materials Us, LLC

Steven P Crain

Mark F Sonnenschein

Kshitish A Patankar

Pen-Chung Wang

Michael J Mullins

Edmund P Woo

Daniel J Murray

Xin Jin

Christina A Rhoton

H Craig Silvis

William Gerald Stobby

Chun S Wang

Stephen E Bales

Bassam S Nader

Ted A Morgan

Matthew James Kalinowski

Dwight D Latham

Ronald L Yates

Lars Massueger

Deborah A Schutter

Dakai D Ren

Tyler G Congleton

Van I Stuart

Gregory T Stewart

Ernest J Herst

Pen C Wang

Daniel T Youmans

Daniel W Cheney

Jeffrey K Olson

Carolin Boehm

Kshitish K Patankar

A fire retardant article has a wood-based material with a polyisocyanurate foam article attached thereto, where the polyisocyanurate foam article covers 90% or more of the exposed portion of the wood-based material, has a thickness greater than 1.8 centimeters, a foam core having a density of 28-128 kg/m, a trimer concentration characterized by at least one of (i) a trimer level in a range of 12-25 weight-percent and (ii) a molar ratio of trimer to sum of urethane and urea in a range of 1-8, a phosphorous concentration of at least 0.3 wt %, a combined concentration of phosphorous and bromine of at least 0.5 wt %, and a vapor permeable and non-combustible facer on at least one primary surface of the foam core.

Wood-based material insulated for combustion resistance

A formulation system contains: (a) a pre-polymer reaction product of a polymeric isocyanate and a polyether polyol, where: (i) the polymeric isocyanate contains five weight-percent or more methylene diphenyl diisocyanate; (ii) the polymeric isocyanate has a functionality of 3.0 or less; (iii) the polyether polyol is present in the pre-polymer at a concentration of one to 25 weight-percent; (iv) the polyol has an equivalent weight of 50 to 500 grams per equivalent; (v) the &#x2212;NCO concentration of the pre-polymer is 15 to 31 weight-percent; (vi) the pre-polymer is free of isocyanate trimers; (b) a polyester polyol component containing 10 to 25 weight-percent of free glycol; and (c) a blowing agent that contains less than five weight-percent water; where the ratio of pre-polymer and polyester result in foam having a trimer content of 12 to 22 weight-percent, and an &#x2212;NCO index of more than 300 and less than 700.

Polyurethane foam from high functionality polyisocyanate

A formulation system contains: (a) a pre-polymer reaction product of a polymeric isocyanate and a polyether polyol, where: (i) the polymeric isocyanate contains five weight-percent or more methylene diphenyl diisocyanate; (ii) the polymeric isocyanate has a functionality of 3.0 or less; (iii) the polyether polyol is present in the pre-polymer at a concentration of one to 25 weight-percent; (iv) the polyol has an equivalent weight of 50 to 500 grams per equivalent; (v) the &#x2014;NCO concentration of the pre-polymer is 15 to 31 weight-percent; (vi) the pre-polymer is free of isocyanate trimers; (b) a polyester polyol component containing 10 to 25 weight-percent of free glycol; and (c) a blowing agent that contains less than five weight-percent water; where the ratio of pre-polymer and polyester result in foam having a trimer content of 12 to 22 weight-percent, and an &#x2014;NCO index of more than 300 and less than 700.

A one component spray polyurethane foam formulation containing a polymeric isocyanate with nominal functionality of 2.5 to 3.5, a polyol component that is at least 85 percent aliphatic and having a mole ratio of polyol with three or more functionality to total polyol of 0.2 to 0.75, 15-30 wt % of a plasticizer, 1.5-3.5 wt % phosphorous, 5.5 to 11.5 halogen and 1.5 to 5 millimoles of blowing agent per gram of formulation and that is free of expandable graphite achieves a B2 rating in DIN 4102 testing.

B2 rated one component spray polyurethane foam formulation for fenestration openings

Embodiments of the present disclosure are directed towards using a carbon-Michael compound. As an example, a method of using a carbon-Michael compound to reduce heat transfer can include locating the carbon-Michael compound between a heat provider and a heat receptor, where the carbon-Michael compound is a reaction product of a multifunctional acrylate compound with a multifunctional Michael donor, and the heat provider has a temperature from 100 C to 290 C.

Method of using a carbon-michael compound

Prepare a thermoset polyurethane foam containing a brominated polymer with aliphatic bromine as a flame retardant.

Thermoset polyurethane foam containing brominated polymeric flame retardant

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

A method for preparing novel poly(aryl ether)-(poly aryl carbonate) block copolymers by the decarboxylation of copolycarbonates prepared by the condensation of two different aromatic dihydroxy compounds and a carbonate precursor such as phosgene. At least one of the aromatic diols must have at least one electron-withdrawing group located in a position ortho or para to at least one of its hydroxy groups and at least one of the diols must not have any electron-withdrawing groups in a position ortho or para to either of its hydroxy groups. The method is particularly effective in making crystalline block copolymers.

Poly(aryl ether)-poly(aryl carbonate) block copolymers and their

Cyanobisphenols of the formula: ##STR1## and their diglycidyl ethers may form linear thermoplastic polymers with low oxygen permeability and which contain cyano moieties that may subsequently be reacted to form useful active sites on the polymer.

Linear bisphenol epoxy polymers containing cyano groups

Prepare N-(amidoalkyl)imides by contacting an imide with a 2-oxazoline under reaction conditions, optionally in the presence of a solvent.

N-(amidoalkyl)hydantoins

Selective preparation of N-(amidoalkyl)imides and related compounds

Novel aminoalkyl hydantoins and glycidyl derivatives thereof are prepared from previously unknown 3-(amidoalkyl) hydantoins.

Aminoalkyl hydantoins and glycidyl derivatives thereof

A composition comprising a polyepoxy aromatic hydantoin having epoxy functionality on the aromatic and the hydantoin rings.

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Midland, MI, United States of America

Steven P Crain