Armstrong World Industries, Inc.

University of Southern Mississippi

First Chemical Corporation

Other

Albemarle Corporation

Alcatel

Charles E Hoyle

Ronald S Lenox

Shan Christopher Clark

E Sonny Jonsson

Christopher W Miller

E Sonny J&ouml;nsson

Peter A Christie

Rajamani Nagarajan

Anne L Schwartz

Mahmood Sabahi

Igor V Khudyakov

Joseph Stanton Bowers, Jr

Sukhendu B Hait

Sergei Nazarenko

Huanyu Wei

E Sonny Jönsson

Liying Shao

John R I Eubanks

The present invention provides modified multifunctional thiol-ene monomers wherein one or more thiols are reacted with a Michael addition reactive double bond compound. The present invention further discloses photocurable thiol-ene formulations comprising thiol-ene monomers including the modified multifunctional thiols. The present invention further discloses photocurable thiol-ene formulations comprising thiol-ene monomers and Michael addition reactive double bond molecules and a Michael catalyst. The formulations of the present invention can be photocured to make films or coatings. In a further disclosure, the formulations, including those comprised of unmodified multifunctional thiols and multifunctional enes, are photocured to form films applied to non-flexible or flexible polymer or non-polymer substrates suitable for food packaging, electronic products, optical products and other applications and free-standing films. The present invention further discloses photocurable thiol-ene formulations comprising thiol-ene monomers and Michael addition reactive double bond molecules and a Michael catalyst. These formulations are disclosed to form free-standing films and coatings on substrates when applied to flexible substrates. Such materials are suitable for use in the packaging of food products and other products which are to be maintained in a hermetically sealed relationship to the atmosphere.

Photocuable thiol-ene low gas permeability membranes

Benzophenone/thioxanthone derivatives useful as photoinitiators are provided as well as photopolymerizable compositions comprising the benzophenone/thioxanthone derivatives.

Benzophenone/thioxanthone derivatives and their use in photopolymerizable compositions

There is provided a radiation-curable coating or packaging composition containing vinyl acrylate and one or more additional components, wherein the composition does not contain a photoinitiator, and the composition polymerizes upon irradiation. The irradiation forms a polymer that demonstrates thermal stability and abrasion resistance, and functions as a moisture barrier. The resulting polymer does not contain any photoinitiator and is therefore useful as a coating or packaging material for foods, or as a coating or packaging material for any application where the exclusion of photoinitiator, and especially residual photoinitiator, is preferred, such as an outdoor weatherable application. A feature of the invention is that the polymerization through exposure to radiation of a composition containing vinyl acrylate may also initiate the polymerization of one or more of the additional components within the composition that would not ordinarily polymerize in the absence of a photoinitiator.

UV-curable acrylate coatings for food packaging

Aliphatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.

Polymerization processes using aliphatic maleimides

Photopolymerization compositions which include maleimides and processes using the same are disclosed. Polymerization of compositions which include maleimides in combination with a benzophenone compound/hydrogen atom donor sensitizer system may be activated by irradiating the composition with radiation.

Photopolymerization compositions including maleimides and processes for using the same

Biradical initiators and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.

Biradical photoinitiators and photopolymerizable compositions

Aromatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation.

Aromatic maleimides and methods of using the same

Aliphatic maleimides and methods using the same are disclosed. Polymerization of compositions which include the compounds of the invention may be activated by irradiating the composition with radiation in the absence of a photoinitiator.

The invention is directed to a coating system which is adaptable to being crosslinked subsequent to being embossed. The system comprises a linear polyurethane that contains sites of unsaturation only in its polymeric backbone and a photoinitiator. The polyurethane is produced by the reaction of a diisocyanate and an unsaturated polyester diol.

Photocrosslinkable thermoplastic urethane coating system

The present invention discloses a method of photolytically developing a colored image on a cellulosic material. In this method, the material is contacted with a nitrogen containing polymer in solution and a mono-sulfonyl azide compound in solution. The sample is thereafter exposed to a UV-containing light source for an amount of time sufficient to develop a color thereon.

Mono-sulfonyl azide composition used to photolytically develop a colored

The invention is directed to an embossed material and a method of producing such an embossed material by utilizing a coating system which is adaptable to being crosslinked subsequent to being embossed. The system comprises a linear polyurethane that contains sites of unsaturation only in its polymeric backbone and a photoinitiator. The polyurethane is produced by the reaction of a diisocyanate and an unsaturated polyester diol. The coating system is applied to a substrate, is embossed, and is irradiated to crosslink the polyurethane coating and permanently fix the embossed pattern.

Embossed material and method for producing the same from a

Development of a colored image on a cellulosic material with

The present invention discloses a method of photolytically developing color on a polyamide textile material. The material is first contacted with an aminobenzenesulfonyl azide and then is exposed to a UV light source for an amount of time sufficient to develop a color thereon.

Growing community of inventors

Hattiesburg, MS, United States of America

Charles E Hoyle