Dow Global Technolgoies LLC

Jay D Romick

David L Malotky

Richard Allen Lundgard

Jodi M Mecca

Qing Zhang

Liang Chen

Christian Piechocki

Fabio Aguirre Vargas

Robert R Bills

Joshua M Katzenstein

Matthew J Crimmins

Patricia A Peart

Jamie L Sullivan

Matthew Crimmins

Richard A Lundguard

The present invention provides aqueous compositions for making damage tolerant coatings comprising a blend of (i) from 2 to 30 wt. %, based on the total weight of solids in the composition, of an acid or anhydride functionalized polyolefin dispersion having an average particle size of from 0.2 to 5 microns, and (ii) a film forming dispersion of one or more epoxy resins chosen from epoxy resins having an epoxy equivalent weight (EEW) of from 150 to 4,000 having an average particle size of from 0.2 to 1.0 microns, wherein the polyolefin dispersion is stabilized with from 2 to 8 wt. %, based on the total weight of solids in the composition, one or more anionic surfactants, such as a sulfate containing surfactant, and, further wherein, the compositions have a pH of from 3 to 8.

Polyolefin dispersion and epoxy dispersion blends for improved damage tolerance

An epoxy functionalized surfactant composition including a reaction product of: (a) a hydrophilic material and (b) an epoxy resin hydrophobe material having an average molecular weight of greater than about 370 Daltons; the above epoxy functionalized surfactant composition being used to prepare a waterborne epoxy dispersion composition including (A) the above epoxy functionalized surfactant composition, (B) an epoxy resin, and (C) water; and processes for preparing the epoxy functionalized surfactant composition and the above waterborne epoxy dispersion composition.

Surfactant composition

The present invention relates to an article and a method for its preparation; the article comprises a cured polymeric film superposing paper or paperboard. The polymeric film comprises: The article of the present invention is useful as a barrier to a wide range of hydrophobic and hydrophilic materials.

Paper coated with a functional polyolefin film

The present disclosure includes a waterborne polyolefin based coating layer that has improved features as compared to epoxy coatings. The coating composition of the present disclosure include 40 to 80 weight percent (wt. %) of a base polymer; 10 to 30 wt. % of a polymeric stabilizing agent; 5 to 15 wt. % of a polymeric coupling agent; 0 to 35 wt. % of a polymeric performance improving agent; a neutralizing agent that partially or fully neutralize the polymeric stabilizing agent; and a fluid medium, where the wt. % values are based on the total weight of the base polymer, the polymeric coupling agent, the polymeric stabilizing agent and, when present, the polymeric performance improving agent (as used herein, this total weight of the base polymer, the polymeric coupling agent, the polymeric stabilizing agent and, when present, the polymeric performance improving agent may be referred to as the 'solid content' of the coating composition).

Coating composition and articles made therefrom

The present invention provides compositions for water vapor permeable hydrophobic coating comprising a blend of (i) a primary polyolefin dispersion of one or more large particle size polyolefins having a melting point of at least 95&#xb0; C., and an average particle size of from 1 to 5 microns, and containing a volatile base and a 14 to 40 carbon long chain linear carboxylic acid dispersing agent, and (ii) a film forming second dispersion of one or more polymers having an average particle size of from 0.1 to 1.0 microns chosen from one or more polyolefins having a melting point from 50 to 90 &#xb0; C. further containing an at least partially neutralized olefin containing dispersing agent, one or more alkyl celluloses which further contain a plasticizer having a boiling point of 250&#xb0; C. or greater and containing an at least partially neutralized olefin containing dispersing agent, and one or more acrylic emulsion polymers having a Tg of from 0 to 60&#xb0; C. wherein the particle size ratio of the primary polyolefin dispersion to the second dispersion ranges from 3:1 to 29:1.

Polyolefin dispersion compositions for making high vapor transport hydrophobic coatings

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Midland, MI, United States of America

Jay D Romick