Ppg Industries Ohio, Inc.

Charles R Hickenboth

Gregory J McCollum

Steven R Zawacky

Richard F Karabin

Thomas C Moriarity

Matthew J Kryger

Britt A Minch

Cynthia Kutchko

Robert D Herold

Nina Vassileva Bojkova

Federico Menta

Hongying Zhou

Thomas R Hockswender

David R Fenn

William H Retsch, Jr

Anu Chopra

Jun Deng

James E Poole

Robin M Peffer

Venkatachalam Eswarakrishnan

Wei Wang

Donald W Boyd

Nathan J Silvernail

Christopher A Dacko

Kevin Thomas Sylvester

Elizabeth A Furar

Marvin Jerome Graham

Brian C Okerberg

Walter F Kasper

David Lewis Lusher, Ii

William H Retsch

Keith M Cross

Nadine Kraut

Gregory J Mccollum

David L Lusher

Nina Bojkova

Zhou Hongying

The present invention is directed to a method for preparing a coated optical article including providing a non-conductive substrate; forming a conductive coating layer over the substrate; electrodepositing a first electrodepositable coating composition over the conductive coating layer to form a first electrodeposited inorganic coating layer; and electrodepositing a second electrodepositable coating composition over the first electrodeposited coating layer to form a second electrodeposited inorganic coating layer thereover, thereby forming a multi-layer antireflective inorganic coating over the conductive coating layer. Each of the first electrodepositable coating composition and the second electrodepositable coating composition is different one from the other, and each includes a sol prepared from a composition of a metal oxide precursor and protic acid such that each coating composition is hydrolyzed. Coated optical articles are also provided.

Method for preparing optical articles with multi-layer antireflective coatings

Provided is a polymerizable non-aqueous dispersion, wherein the non-aqueous dispersion comprises: Also provided are optical articles prepared from the polymerizable non-aqueous dispersions.

Polymerizable compositions and optical articles prepared therefrom

The present invention provides a method for preparing a customized polymeric article including: providing two mold half-sections, each half-section having an outer surface and an inner surface; assembling the two mold half-sections to form a mold assembly such that the inner surfaces define a cavity there between; applying one or more magnetic fluids to the inner surface of a mold half-section; inserting a fluid polymeric material into the cavity; controllably applying a magnetic field to the magnetic fluids to form a customized reversible surface in accordance with a predetermined specific surface topography; subjecting the mold assembly to conditions sufficient to effect polymerization or hardening of the fluid polymeric material; and separating the two mold half-sections. Articles prepared by the method also are provided.

Methods for preparing customized polymeric articles

Provided is a polymerizable composition including (meth)acrylate monomers having at least two sulfide (&#x2014;S&#x2014;) linkages in the monomer. The polymerizable compositions include a first (meth)acrylate monomer represented by the following Formula (I), where Lis selected from a multivalent optionally substituted hydrocarbyl group optionally interrupted with at least one of &#x2014;C(O)&#x2014;, &#x2014;S&#x2014;, &#x2014;O&#x2014; and combinations thereof, and a divalent linking group represented by the following Formula (A).  In Formula (A), Y is O or S. Also in Formula (I), Lis independently for each n a divalent optionally substituted hydrocarbyl group optionally interrupted with at least one of &#x2014;O&#x2014; and &#x2014;S&#x2014;, Ris independently selected for each n from hydrogen and methyl, and n is from 2 to 6. The polymerizable compositions also may include a polymerization moderator. Also provided are polymerizates including photochromic articles and optical elements prepared from such polymerizable compositions.

Polymerizable compositions containing (meth)acrylate monomers having sulfide linkages

A mechanochromic coating composition is disclosed comprising a binder composition and a crystalline mechanophore. The mechanophore changes color upon application of a mechanical load to the coating composition.

Coating composition having mechanochromic crystals

Provided is a polymerizable composition of (a) a monomer composition including ethylenically unsaturated monomer having a &#x3b2;-epithiopropyl functional group; (b) optionally, a compound having two or more &#x3b2;-epithiopropyl functional groups but no polymerizable ethylenically unsaturated groups; (c) an isourea functional polymerization initiator; and (d) a catalyst for reaction between the &#x3b2;-epithiopropyl functional groups. Also provided is a method of reducing the yellowness index of a sulfur-containing polymerizate prepared by addition polymerization, the method including reacting in the presence of an isourea functional polymerization initiator and a catalyst for reaction between &#x3b2;-epithiopropyl functional groups, a polymerizable composition of: (a) a monomer composition including ethylenically unsaturated monomer having a &#x3b2;-epithiopropyl functional group; and, optionally, (b) a compound having two or more &#x3b2;-epithiopropyl functional groups but no polymerizable ethylenically unsaturated groups.

Polymerizable compositions containing ethylenically unsaturated monomers having episulfide functional groups and related methods

The present invention relates to a polymer composition that includes a polymer having at least one polymer segment represented by the following Formula (I), With reference to Formula (I): M independently for each w is a residue of a monomer; &#x3c6; is a residue of a mechanochromic compound having at least two reactive groups that are each independently bonded to one monomer residue M; w, independently for each z, is an integer of at least 1; and z is an integer of at least 2. The mechanochromic compound is selected from at least one of the following, and 

Polymer compositions containing mechanochromic polymers

The present invention relates to controlled radical polymerization (CRP) initiators that include at least one radically transferable group. The CRP initiators include at least one of the following, and One or more of R, R, R, R, R, and Rof the spirooxazine, and one or more of R, R, R, R, B, and B' independently include the radically transferable group. The present invention also relates to polymers, such as mechanochromic polymers, that are prepared from such CRP initiators, polymer compositions that include such polymers, and mechanochromic articles that include such polymer compositions.

Controlled radical polymerization initiators

A mechanochromic coating composition is disclosed comprising a polymeric network incorporating a plurality of ring-opening mechanophores each bound at two positions thereof within said polymeric network.

Mechanochromic coating composition

Disclosed herein are bicyclic guanidine salts, useful as cure catalysts for electrodeposited coatings. The bicyclic guanidine salts are formed as the reaction product of reactants comprising (a) a compound having the general formula CX, wherein X is N, O, or S and wherein n is 2 to 4; (b) an acid; (c) dipropylene triamine; and (d) water, and an associated method for forming a bicyclic guanidine salt from the same reaction ingredients.

Preparation of bicyclic guanidine salts in an aqueous media

The present invention is directed to a method producing bicyclic guanidine comprising heating a cyclic thiourea to a temperature ranging from &#x2267;140&#xb0; C. in a substantially non-hydrocarbon solvent to form the bicyclic guanidine.

Method for producing bicyclic guanidines by use of a cyclic thiourea

The present invention is directed to a method for producing bicyclic guanidines comprising heating a reaction mixture comprising cyclic urea and a dehydrating agent to a temperature &#x2267;90&#xb0; C.

Method for producing bicyclic guanidines by use of a cyclic urea and a dehydrating agent

The present invention is directed to a method for preparing a cyclic guanidine comprising reacting (i) a cyanamide, (ii) a polyamine, and (iii) a weak acid. The present invention is also directed to a coating composition comprising the cyclic guanidine.

Method of making a cyclic guanidine from dicyandiamide and coating compositions containing same

Methods for preparing an electrodepositable coating composition are provided comprising: (a) mixing a flatting agent with an electrodepositable resin; (b) combining the mixture of (a) with a pigment paste to form a flatting agent-pigment paste mixture; and (c) combining the flatting agent-pigment paste mixture of (b) with an electrodepositable resin. Methods of coating articles including electrodepositable coating compositions prepared by these methods, as well as processes for coating electroconductive substrates with compositions prepared by these methods are also provided.

Methods for preparing an electrodepositable coating composition

The present invention is directed to a method for preparing a cyclic guanidine comprising reacting (i) a guanidinium, (ii) a polyamine, and (iii) a weak acid. The present invention is also directed to a coating composition comprising the cyclic guanidine.

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Cranberry Township, PA, United States of America

Charles R Hickenboth