Dow Global Technolgoies LLC

Rohm and Haas Company

Rebecca J Wachowicz

Felipe A Donate

Jason L Trumble

Edward D Daugs

George J Frycek

Michael C Becker

Aleksandr T Gamble

Linda A Adamson

Thomas R Tepe

David M Fasano

David Laitar

Sudhakar Balijepalli

Xin Jiang

Cheng Shen

Jing Ji

Andrei S Merenov

David Michael Fasano

Jacob Crosthwaite

Julie L Maurer

Claribel Acevedo Velez

Ellen D Hock

Keosha L Cade

Sarah E Ittner

Kazuyuki Hasegawa

A prepolymer comprising an acid group is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a polyol containing an acid group, and (iii) a polyol without an acid group, the contacting conducted under reaction conditions and in a solvent consisting essentially of: (A) a first component consisting essentially of at least one glycol ether ketone, and (B) optionally, a second component consisting of at least one aprotic glycol ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions.

Water-based polyurethane dispersions and their preparation

The present invention relates to azeotropic blends and pseudoazeotropic blends and to coating compositions including such blends. In one aspect, an azeotropic blend or a pseudoazeotropic blend consists essentially of hexamethyldisiloxane and a second component selected from the following: isobutanol, n-propyl acetate, n-butanol, and 1-methoxy-2-propanol.

Azeotropic and pseudoazeotropic blends

The present invention relates to azeotropic blends and pseudoazeotropic blends and to coating compositions including such blends. In one aspect, an azeotropic blend or a pseudoazeotropic blend consists essentially of octamethyltrisiloxane and a second component selected from the following: amyl acetate, 2-propoxyethanol, 1-methoxy-2-propylacetate, and 1-propoxy-2-propanol.

A prepolymer comprising acid functionality is made by a process comprising the step of contacting: (i) a di-isocyanate, (ii) a polyol containing an acid group, (iii) a polyol without an acid group, and (iv) a metal salt catalyst, the contacting conducted under reaction conditions and in a solvent consisting essentially of: (A) a dialkyl amide, and (B) optionally, an aprotic glycol ether. The prepolymer is useful in the preparation of water-based polyurethane dispersions, and certain of the solvent blends consisting essentially of a dialkyl amide and an optional aprotic glycol ether are azeotropic or pseudo-azeotropic.

Embodiments of the present invention relate to compositions, aqueous coating compositions, and methods for improving the freeze/thaw stability of aqueous coating compositions. In one aspect, a method for improving the freeze/thaw stability of an aqueous coating composition comprising an aqueous polymeric dispersion, the method comprising adding the following compound to the aqueous coating composition: (Formula (I)) wherein n=4 to 8. 

Compositions, aqueous coating compositions, and methods for improving the freeze/thaw stability of aqueous coating compositions

Glycol ether benzoates, glycol benzoates and methyl benzoate facilitate the dyeing of the meta-aramid article, e.g., fibers, at or near neutral pH. The addition of an anionic surfactant, such as sodium lauryl sulfate, enhances the performance of the benzoates.

Formulations having benzoate dye carriers for meta-aramid articles

A process comprising reacting a mono- or di-carboxylic acid and/or acid anhydride with a glycol ether in the presence of phosphoric acid to produce a glycol ether ester product having low color and low VOC content.

Process for producing low VOC coalescing aids

A process comprising reacting a benzoic acid with a glycol ether in the presence of phosphoric acid to produce a glycol ether ester product having low color, low odor, and low VOC content.

This invention relates to a clean-up solvent and paint thinner for solvent-borne resins and coatings selected from compositions of Formula (I)   The invention also relates to a solvent-borne composition including a solvent-borne polymer and the low and zero VOC composition of the invention; and a method for cleaning or thinning a solvent-borne composition.

Growing community of inventors

Bay City, MI, United States of America

Rebecca J Wachowicz