The Dow Chemical Company

Dow Global Technolgoies LLC

Jimmy D Earls

Robert E Hefner, Jr

Paul M Puckett

Jerry E White

Loren L Swearingen

Randy J LaTulip

Zenon Lysenko

James L Bertram

Louis L Walker

Leonardo C Lopez

Marvin L Dettloff

Mark D Newsham

V Rao Durvasula

Joseph A Schomaker

David J Brennan

David A Waldman

Peter E Pierini

James A Rabon, Jr

John W Robinson

Bruce L Burton

William A Clay

Brenda Thies Colegrove

Lalitha Reddy

Robert E Jones, Jr

Mary L Dettloff

The present invention provides compounds that have an amide linkage and at least two epoxy groups. The compounds are preferably aliphatic.

Polyepoxy compounds having an amide linkage

The present invention provides thermoplastic hydroxy-functional polyesters. The polyesters have at least 10 sequential units, wherein the sequential units consist of units selected from units represented by the following formula (1) and units represented by the following formula (2); Wherein each of Rindependently represents hydrogen or a substituted or unsubstituted homoalkyl or heteroalkyl group; each of Rindependently represents hydrogen or a substituted or unsubstituted homoalkyl or heteroalkyl group; each of Rindependently represents hydrogen or a substituted or unsubstituted homoalkyl or heteroalkyl group; Each of Rindependently represents a substituted or unsubstituted homoalkyl or heteroalkyl group; and said moiety having no fewer than 1 unit represented by formula (1) and no fewer than 1 unit represented by formula (2). The present invention further provides processes for making hydroxyfunctional polyesters, such as polymerizing epoxidized fatty acids in the presence of an onium salt, and compositions and articles that include or are derived from the hydroxyfuntional polyesters 

Hydroxy-functional polyesters

The present invention provides network polymers obtained by curing compositions that comprise an ester with at least two terminal epoxy groups. Preferred esters include those represented by the formula (1), wherein each Rindependently represents a substituted or unsubstituted homoaliphatic or heteroaliphatic group; A represents a substituted or unsubstituted homoalkylene, hetemalkylene, arylene, or heteroarylene segment; and n represents an integer equal to or greater than 2.

Network polymers comprising epoxy-terminated esters

A compound of the formula: ##STR1## wherein Ar.sup.1 is the backbone of any aromatic diamine moiety other than 3,4'-oxydianiline and W independently in each occurrence is a bond or a radical selected from the group consisting of: ##STR2##

Resins containing phenylethynl-terminated compounds

Epoxy resins containing rodlike mesogenic moieties are prepared from phenolic hydroxyl containing compounds which contain such moieties.

Glycidyl ether compounds containing mesogenic moieties

Epoxy resins containing discotic mesogenic moieties

The present invention discloses novolacs and thermosets thereof containing mesogenic moieties. Certain of said novolacs and thermosets thereof exhibit nonlinear optical properties upon orientation.

Mesogenic novolacs and resins

Novel polycyanate compositions containing one or more mesogenic moieties as lateral substituents are disclosed which provide improved processability relative to polycyanates containing one or more mesogenic moieties in the main chain of the molecule. Molecular level ordering of the resulting thermosets is maintained much similar to that found thermosets of polycyanates which have one or more mesogenic moieties in the main chain.

Polyphenols containing mesogenic moieties as lateral substituents

Adducts containing mesogenic or rodlike moieties are prepared by reacting (1) at least one compound containing an average of more than one vicinal epoxide group per molecule with (2) at least one compound containing an average of more than one reactive hydrogen atom per molecule; with the proviso that at least one member of components (1) and (2) contains a mesogenic or rodlike moiety. These compounds are useful as curing agents for epoxy resins.

Adducts of epoxy resins and active hydrogen containing compounds

Anhydride compounds which contain at least one rodlike mesogenic moiety and at least two anhydride groups per molecule, wherein each of said aromatic anhydride groups is linked to the mesogen via an ester linkage are prepared. These anhydride compounds are useful in curing epoxy resins to provide the cured products with one or more improved properties.

Mesogen-containing aromatic anhydride compounds

Curable compositions containing (A) one or more epoxy resins, one (B) or more curing agents and (C) one or more cure controlling catalysts wherein at least one of components (A) or (B) or both components (A) and (B) contain a mesogenic moiety are prepared. These curable compositions permit processing at higher temperatures and improved properties. They are useful in the preparation of coatings, castings, electrical or laminates or composites and the like.

Cure controlled catalyzed mixtures of epoxy resins and curing agents

Novel cyclic imino ether compositions containing one or more mesogenic moieties, when polymerized, result in products having improved properties.

Mesogenic cyclic imino ether-containing compositions and polymerization

Products resulting from polymerizing or curing polycyanates containing

Adducts containing terminating nitro (nitroso) groups and one or more mesogenic moleties are prepared by reacting (A) at least one compound containing an average of more than one vicinal epoxide group per molecule with (B) at least one compound containing one or more nitro (nitroso) groups and an average of one reactive hydrogen atom per molecule; with the proviso that at least one member of components (A) and (B) contains a mesogenic moiety. Reaction of part or all of the aliphatic hydroxyl backbone groups by etherification, conversion to a halide, urethanation, oxidation to a ketone, or reduction of said ketone to an alkane, decreases the amount of hydroxyl group functionality. Reduction of these adducts provides amines which are useful as curing agents for epoxy resins.

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Lake Jackson, TX, United States of America

Jimmy D Earls