Air Products and Chemicals, Inc.

Cognis Corporation

Ning Chen

Robert K Pinschmidt, Jr

Mark L Listemann

Richard Paul Underwood

Walter L Renz

Chao-fong Tien

Richard Van Carr

Chung-Ling Mao

William Eamon Carroll

Ramesh L Narayan

Thomas M Santosusso

Arifin Marzuki

Ulrike Varlemann

Richard Van Court Carr

Richard A Bafford

Frank Vito DiStefano

Larry A Wasowski

Stephanie M Patton

An energy-curable polymer-forming composition for making a pressure sensitive adhesive includes an unsaturated oligomer resin and an adhesive promoter which increases the peel strength of the adhesive without reducing its tack. The composition also includes a tackifier and various other optional components such as photoinitiator, chain extender, reactive diluent and the like.

Energy-curable composition for making a pressure sensitive adhesive

Catalyst compositions for the production of polyurethanes

The use of 3-[3-(dimethylamino)propyl]-propionamide (Formula I) and 3,3'-{[3-(dimethylamino)propyl]imino}bis-propanamide (Formula II) as catalysts in the production of polyurethanes. ##STR1##

Amido functional amine catalysts for the production of polyurethanes

3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide is a new compound which is useful as a catalyst in the production of polyurethane foams.

3-{N-[2-(N',N'-dimethylamino ethoxy)ethyl]-N-methylamino}propionamide

A heterogeneous two component waterborne urethane/vinyl polymer composition, the method of making the composition, and the coating derived therefrom. The composition is a low or zero VOC composition containing a polyol stabilized non-functional, high Tg, aqueous vinyl polymer latex, a water dispersible polyisocyanate, and, optionally, a polyhydric alcohol. The composition is formed by emulsion polymerizing one or more vinyl monomers which will form a high Tg polymer, in the presence of an emulsifier containing one or more acid-containing polyols which have been neutralized with one or more reactive amines, and combining the resulting polyol-stabilized high Tg aqueous vinyl polymer latex with a water-dispersible polyisocyanate and, optionally, a polyhydric alcohol.

Two component waterborne urethane/vinyl polymer composite for coating

N-vinyl compositions comprising 3-(N-vinylformamido)propionamides and 2-methyl-3-(N-vinylformamido)propionamides containing terminal amino, hydroxyl or a second N-vinyl group are obtained by amidation of the corresponding propionate ester with appropriate alkylamines. The invention also describes a process for preparing these compounds. The subject materials are useful as monomers in free radical polymerization as well as precursors in the preparation of unsaturated resins.

Functional N-vinylformamides

A process is provided for the synthesis of N-vinylformamidopropionates by the reaction of NVF with acrylic and methacrylic acid esters in the presence of a metal hydride catalyst. This process allows for the improved production of mono-functional monomers and also for the synthesis of new multi-functional monomers which are useful as crosslinkers and chain extenders in photo-cure applications.

N-vinylformamidopropionates and process for their synthesis

This invention pertains to aqueous emulsions containing water insoluble, vinyl polymer particles containing polymerized Michael adduct units of N-vinylformamide and to emulsions of vinyl acetate polymers containing said Michael adducts. These latex dispersions are prepared by the emulsion polymerization of a Michael adduct of N-vinylformamide, optionally with other ethylenically unsaturated monomers, e.g., vinyl acetate. The Michael adducts of N-vinylformamide are represented by the formula: ##STR1## where R is H or CH.sub.3, X=CN, O=CR.sub.1, O=COR.sub.1 or other electron withdrawing group such as SO.sub.3 M, SO.sub.3 R.sub.1 and NO.sub.2 wherein R.sub.1 is a linear or branched alkyl, cycloalkyl, heterocyclic, arylalkyl, alkyloxy or aryl group containing between 1 and about 20 carbon atoms and substituted derivatives thereof and M is an ion. The preferred Michael adduct N-vinyl amide monomers are unsaturated monomers consisting of the alkl 3-N-vinylformamidopropionates and alkyl 2-methyl-3-N-vinylformamidopropionates and represented by the formula: ##STR2## where R is hydrogen or methyl, and R.sup.1 is a linear or branched alkyl, cycloalkyl, heterocyclic, arylalkyl, alkyloxy or aryl group containing between 1 and about 20 carbon atoms.

Aqueous polymeric emulsions incorporating polymerized units of michael

Novel unsaturated compounds comprising the 3-(N-vinylformamido)propionates and 2-methyl-3-(N-vinylformamido)propionates, or the corresponding propionamides, are obtained by the Michael addition reaction of N-vinylformamide with an acrylic or methacrylic acid ester. These compounds are useful as monomers in free radical polymerizations, particularly as components of photocurable coatings.

N-vinylformamide/alkyl acrylate Michael adducts

This invention relates to improved water-based polymeric dispersions having suitability for coatings and other applications which are based upon polymers having a plurality of acetoacetate functional groups and a crosslinkable component comprising a plurality of aromatic aldimine. The basic acetoacetate/benzaldimine containing system comprises an aqueous polymeric dispersion wherein the polymer has a plurality of acetoacetate groups and an effective amount of a curing agent having a plurality of benzaldimine functional groups. The improvement in providing for water-stable polymeric dispersions suitable for coatings and other applications comprises an aqueous dispersion comprising a polymeric component preferably derived from a plurality of polymerizable ethylenically unsaturated monomer units having pendant araldimine or heterocyclic aldimine functionality. Acetoacetate containing monomers generally are used in forming the polymer and a preferred monomer acetoacetoxyethymethacrylate. The polymer incorporating a plurality of benzaldimine functionality generally is formed by emulsion or suspension polymerization and the adimine functionality is benzaldimine.

Water borne crosslinkable compositions

Novel unsaturated compounds comprising the 3-(N-vinylformamido)propionates and 2-methyl-3-(N-vinylformamido)propionates are obtained by the Michael addition reaction of N-vinylformamide with an acrylic or methacrylic acid ester. These compounds are useful as monomers in free radical polymerizations, particularly as components of photocurable coatings.

Michael adducts of N-vinylformamide and acrylic and methacrylic esters

This invention relates to improved crosslinking systems for polymeric dispersions and solutions having suitability for coatings, adhesives and use in many other applications. These systems are based upon crosslinkable polymers having a plurality of activated keto methylene groups, e.g., a beta diketone such as an acetoacetate or a keto cyano methylene functional groups and a crosslinkable component comprising an aldimine. A sufficient amount of the aldimine curing agent is used to effect reaction with the polymer containing the activated keto methylene groups and cure thereof. The improvement in the crosslinking system resides in the utilization of a monoaldimine having only one aldimine group and no other methylene reactive group as a crosslinking agent. Another improvement variation to that previously suggested comprises a redispersible polymer(s) containing activated methylene functionality and combined with the monoaldimine and the use of heterocyclic aldimine.

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Jamison, PA, United States of America

Ning Chen