Dow Global Technolgoies LLC

Ricco B Borella

Paul A Cookson

Francois M Casati

Jean-Paul Masy

Carlos M Villa

David A Babb

Irena Amici-Kroutilova

Hamideh Ahmadloo

Flor A Castillo

Daniel Hoehener

Hanno R Van Der Wal

Daniel Clay Floyd

Sven Claessens

Jouko Vyorykka

Lucie Porcelli

Anja Arlt

Daniel Hoenhener

Myriam Linke

Stijn De Loos

Esther E Quintanilla

Sven Clausssens

Paul Cookson

Daniel Hoehnener

The present invention provides cooling, substantially formaldehyde and alkylphenylethoxylate (APEO) free aqueous coating compositions of a soft acrylic or vinyl copolymer binder comprising from 1.8 to 5 wt. %, based on the total weight of monomers used to make the copolymer, of an ethylenically unsaturated acid functional group containing monomer, in copolymerized form, and, in copolymerized form, an adhesion promoting ethylenically unsaturated monomer; an aqueous encapsulated PCM (phase change material) having a crosslinked acrylic shell; a nonionic associative thickener, such as a polyurethane associative thickener; and a softener. The aqueous coating compositions have a pH ranging from 7 to 8 and a solids content as high as 70 wt. % and provide soft coatings for viscoelastic polyurethane foams.

Storage stable PCM containing aqueous cool coatings for flexible foams

A polyol composition is made by polymerizing a mixture of ethylene oxide and propylene oxide onto a mixture of at least one diol initiator and at least one triol initiator, followed by polymerizing 100% propylene oxide or a mixture of at least 90 weight percent propylene oxide and at most 10 weight percent ethylene oxide. The resulting polyol composition has a hydroxyl equivalent weight of 200 to 400 and an average nominal functionality of 2.05 to 2.95 hydroxyl groups/molecule. 5 to 30 percent of the hydroxyl groups of the coinitiated polyether polyol are primary hydroxyl groups and polymerized ethylene oxide constitutes 40 to 63 percent of the total weight of the coinitiated polyether polyol.

Polyol blends useful for producing viscoelastic foam

PIPA polyols are made by reacting a low equivalent weight polyol with a polyisocyanate in the presence of a stabilizer. Low amounts, if any, of water are present. Useful stabilizers include functionalized linear or branched polyethers having at least one polyether segment having a molecular weight of 200 to 8000, wherein the functionalized polyether is terminated at one end with one or more isocyanate groups or with one or more isocyanate-reactive groups linked to the polyether through one or more urea and/or urethane groups, and further wherein all or a portion of such functionalized polyether contains one or more biuret, isocyanurate, urea or allophonate groups.

Polyisocyanate polyaddition polyol manufacturing process using stabilizers

Polymer polyols are made by polymerizing an ethylenically unsaturated monomer in a continuous polyol phase. The polymerization is stabilized with a macromer or a pre-formed polymer made by polymerizing or copolymerizing the macromer. The macromer is a random polymer of propylene oxide and ethylene oxide in defined ratios, which also contains polymerization carbon-carbon double or triple bond. Polymer polyols made in the process exhibit little viscosity rise when blended with water. Flexible polyurethane foam made from the polymer polyol exhibits excellent hardness, have good surface characteristics and, when pigmented, exhibit good, uniform coloration.

Macromer and process for making polymer polyols

PIPA polyols are made in a two-step process. In the first step, a base polyether polyol and a polyisocyanate are reacted to form a mixture that contains unreacted base polyol, unreacted polyisocyanate and adducts of the base polyol and polyisocyanate. A low equivalent weight polyol is then added and reacted in a second step to form the dispersion. The process unexpectedly produces a stable dispersion of the fine PIPA particles in the base polyol, even when the base polyol contains mostly secondary hydroxyl groups. The process also permits the tuning of product viscosity by increasing or decreasing the extent of reaction in the first step.

Polyisocyanate polyaddition polyol manufacturing process and product

Ethylene carbonate is polymerized by itself or together with another cyclic monomer such as 1,2-propylene oxide in the presence of a double metal cyanide catalyst. Most of the ethylene carbonate adds to the chain to form a terminal carbonate group, which decarboxylates to produce a hydroxyethyl group at the end of the polymer chain. The polymerization of more ethylene carbonate onto the chain end results in the formation of poly(ethyleneoxy) units. Therefore, the process provides a method for making poly(ethyleneoxy) polymers without the need to polymerize ethylene oxide. The process is useful for making polyethers that are useful as water-absorbable polymers, surfactants and as raw materials for polyurethanes. The process is also useful for increasing the primary hydroxyl content of a polyether.

Process for making polyether alcohols having oxyethylene units by polymerization of ethylene carbonate in the presence of double metal cyanide catalysts

Copolymers of propylene oxide and ethylene oxide have an inner block that contains from 65-90 weight percent oxyethylene units and from 10 to 35 weight percent oxypropylene units. This block has a molecular weight of from 150 to 350. The copolymer has an outer block which contains at least 95 weight % oxypropylene units and from 0 to 5% oxyethylene units. The equivalent weight of the copolymer is from 800 to 2000. The copolymers are useful in making polyurethane foams that have unexpectedly high tensile and/or tear strengths.

Ethylene oxide/propylene oxide polyether polyols and polyurethanes made therefrom

Embodiments include polymer polyol dispersions which include a polyol liquid phase and solid particle phase. Embodiments include methods of making the polymer polyol dispersions. The polymer polyol dispersions are essentially free of tin, have a solid content of between about 20 and 50 wt % based on the total weight of the polymer polyol dispersion, and have a viscosity at 20 C. of less than 9000 mPas. The solid particle phase has more than 90% by weight of particles in the solid particle phase having a particle diameter of less than 5 &#x3bc;m.

Tin free polymer polyols

Growing community of inventors

Schindellegi, Switzerland

Ricco B Borella