Jerome M. Harris - Penllyn PA 19422 James W. Neely - Dresher PA 19025
International Classification:
C08J 300
US Classification:
524589, 524507, 524590, 524591, 524839, 524840
Abstract:
A method for reducing or eliminating syneresis in an aqueous latex composition caused by the flocculation of the latex particles as a result of interaction with hydrophobically modified ethylene oxide based urethane rheology modifiers. The method of the invention involves adding to the aqueous latex composition a molecule containing a single hydrophobic moiety which has a poly-ethylene oxide backbone chain-length of greater than about 5000 Mn. The method of the present invention also increases the viscosity efficiency of the aqueous latex composition by combining a multiphobe with a monophobe.
Ronald Scott Beckley - Gilbertsville PA, US Robert Mitchell Blankenship - Harleysville PA, US Albert Benner Brown - Doylestown PA, US James Tinney Brown - Bechtelsville PA, US Anton Georges El A'mma - Perkiomenville PA, US Susan Jane Fitzwater - Ambler PA, US Robert Howard Gore - Southampton PA, US Eric Jon Langenmayr - Bryn Mawr PA, US Dennis Paul Lorah - Lansdale PA, US Warren Harvey Machleder - Blue Bell PA, US James Watson Neely - Dresher PA, US George Harvey Redlich - Norristown PA, US Curtis Schwartz - Ambler PA, US Frederick James Schindler - Ft. Washington PA, US Robert Victor Slone - Quakertown PA, US David William Whitman - Harleysville PA, US Mark Robert Winkle - Lansdale PA, US
Provided are improved coatings, polymeric dispersions, and polymeric composites, which include crosslinked polymeric nanoparticles (hereafter “PNPs”). Also provided are methods for forming improved coatings, polymeric dispersions, and polymeric composites, which include PNPs. The PNPs have polymerized units of at least one multi-ethylenically-unsaturated monomer have a mean diameter of from 1 to 50 nanometers. PNPs having polymerized units of at least one multi-ethylenically-unsaturated monomer and at least one surface-active monomer are also provided.
An aqueous, curable coating composition comprising a mixture of: (a) at least one water-soluble alkali metal silicate and (b) an effective amount of a water-soluble crosslinking agent comprising an alkali metal aluminophosphate, or an alkali metal aluminoborophosphate, or an ammonia aluminophosphate, or an ammonia aluminoborophosphate, or an alkali metal ammonia aluminophosphate, an alkali metal ammonia aluminoborophosphate, or a mixture of two or more of the foregoing phosphates. The coating composition will often not contain any visually discernible precipitate. The coating composition may be applied to a substrate, such as a glass, a ceramic, concrete or a metal and thereafter cured by air drying or by heating to a temperature of up to about 240 C. (or higher, if desired).
Method For Making Aluminum Trimetaphosphates From Powder Reactants
James E. Neely - Butler PA Chia-Cheng Lin - Gibsonia PA Charlene A. Falleroni - Lower Burrell PA Annette Moff - Latrobe PA
Assignee:
PPG Industries, Inc. - Pittsburgh PA
International Classification:
C01B 2536
US Classification:
423314
Abstract:
A method for preparing aluminum trimetaphosphate comprising various chain form polyphosphate species by heating a mixture of aluminum hydroxide and ammonium phosphate is disclosed.
Method Of Making Low Temperature Curable Silicate Compositions
A method is disclosed for making low temperature curable silicate compositions by combining a mixture of sodium and potassium silicates with the B-form of aluminum trimetaphosphate.
Chemically Bonded Inorganic Polymer Coatings And Cross-Linking Hardeners Therefor
Aqueous coating compositions for glass or ceramic substrates contain at least one water soluble alkali silicate and a cross-linking agent produced by reacting at least one alkali hydroxide with an aluminum phosphate. The coating compositions are applied to a glass or ceramic substrate and heat cured.
Separation Of More Planar Molecules From Less Planar Molecules
Planar organic molecules, such as divinylbenzene or para-dioxin molecules, are adsorbed from mixtures of planar and non-planar molecules, such as commercial divinylbenzenes containing non-planar ethylvinylbenzene, or commercial 2,4,5-T herbicide containing non-planar 2,4,5-trichlorophenoxyacetic acid, by partially pyrolyzed, macroporous, resinous polymer particles.
Mixed Alkali Silicate Compositions For Coatings And Cements