The invention provides highly functional epoxy resins that may be used themselves in coating formulations and applications but which may be further functionalized via ring-opening reactions of the epoxy groups yielding derivative resins with other useful functionalities. The highly functional epoxy resins are synthesized from the epoxidation of vegetable or seed oil esters of polyols having 4 or more hydroxyl groups/molecule. In one embodiment, the polyol is sucrose and the vegetable or seed oil is selected from corn oil, castor oil, soybean oil, safflower oil, sunflower oil, linseed oil, tall oil fatty acid, tung oil, vernonia oil, and mixtures thereof. Methods of making of the epoxy resin and each of its derivative resins are disclosed as are coating compositions and coated objects using each of the resins.

The invention provides highly functional epoxy resins that may be used themselves in coating formulations and applications but which may be further functionalized via ring-opening reactions of the epoxy groups yielding derivative resins with other useful functionalities. The highly functional epoxy resins are synthesized from the epoxidation of vegetable or seed oil esters of polyols having 4 or more hydroxyl groups/molecule. In one embodiment, the polyol is sucrose and the vegetable or seed oil is selected from corn oil, castor oil, soybean oil, safflower oil, sunflower oil, linseed oil, tall oil fatty acid, tung oil, vernonia oil, and mixtures thereof. Methods of making of the epoxy resin and each of its derivative resins are disclosed as are coating compositions and coated objects using each of the resins.

Liquid crystalline network compositions comprising azo-containing aromatic epoxy units cross-linked with alkylene diacid units having alkylene segments containing at least one methylene unit, wherein the azo-containing aromatic epoxy units and alkylene diacid units are connected by ester linkages resulting from ring-opening esterification between the epoxy units and alkylene diacids, and wherein the azo-containing aromatic epoxy units and alkylene diacid units are in a molar ratio that results in the liquid crystalline network composition exhibiting a glass transition temperature (T.sub.g) of at least 25 C. Methods for producing these compositions and their use in light- or thermal-activated physical deformation, shape memory applications, and self-healing, as well as their ability to be recycled and used in additive manufacturing processes are also described.

Plant-based supple and durable topcoats are achieved by reacting naturally derived epoxides with naturally derived polyfunctional carboxylic acids. The topcoats are coated to various types of substrates including weaved or knitted or nonwoven fabrics, and can show significant advantages of replacing both animal hide leathers and petroleum-based PU leathers by reducing the carbon footprints, and improving environmental sustainability.

The present invention provides a resist underlayer film that has a wide focus position range within which a good resist shape can be obtained. A resist underlayer film-forming composition for lithography comprising a linear polymer that is obtained by a reaction of a diepoxy group-containing compound (A) with a dicarboxyl group-containing compound (B). The linear polymer has structures of the following formulae (1), (2), and (3) derived from the diepoxy group-containing compound (A) or the dicarboxyl group-containing compound (B): ##STR00001##
The linear polymer preferably contains a polymer obtained by a reaction of two diepoxy group-containing compounds (A) each having structures of Formulae (1) and (2) with a dicarboxyl group-containing compound (B) having a structure of Formula (3), or a polymer obtained by a reaction of a diepoxy group-containing compound (A) having a structure of Formula (1) with two dicarboxyl group-containing compounds (B) each having structures of Formulae (2) and (3).

The invention relates to novel curable bio-based thermosetting compositions of a) at least one highly-functional bio-based epoxy resin; and b) at least one carboxylic acid crosslinker selected from the group consisting of a water-soluble multifunctional carboxylic acid, a dicarboxylic acid oligomer from a melt reaction between a diol and a dicarboxylic acid or its anhydride, and mixtures thereof and which are curable with water, an alcohol or a water and alcohol mixture. The bio-based thermosets of the invention may be free of VOCs and/or organic solvents. The bio-based thermosets of the invention can be used to form coatings, composites, adhesives, and films. Methods of making the bio-based thermosets of the invention are disclosed as are coating compositions and coated objects, such as coatings, composites, adhesives, and films, using the bio-based thermosets of the invention.

Provided herein are a solder paste and a mount structure having excellent repairability while maintaining high adhesion at the operating temperature of a semiconductor component. The solder paste is configured from a solder powder and a flux. The flux contains an epoxy resin, a curing agent, a rubber modified epoxy resin, and an organic acid. The rubber modified epoxy resin is contained in a proportion of 3 weight % to 35 weight % with respect to the total weight of the flux.

An epoxide based composition that can be cured at a temperature of less than about 70 C is disclosed. The composition is a liquid at ambient conditions and, therefore, can be used to rehabilitate the interior surfaces of pipelines. The epoxide-based composition comprises at least one epoxide component (component A) and at least one curing agent component (component B) wherein (A) the epoxide component comprises a phenyl glycidyl ether polyepoxide; and (B) the curing agent component comprises a mixture of two salt compounds formed, respectively, from an N-alkanol piperidine and a carboxylic acid bearing 7-12 carbon atoms, and N-cyclohexyl-N,N-dialkyl amine and a carboxylic acid bearing 7-12 carbon atoms.

Water reducible coatings having a low volatile organic content and that are resistant to aerospace solvents are disclosed. The coatings include an epoxy resin component and an amine component. The epoxy resin component comprises a difunctional polyepoxy resin, a multifunctional aliphatic polyepoxy resin, and a polyacetoacetate resin. The amine component comprises a polyepoxy-polyamine adduct and a methylene bridged poly(cyclohexyl-aromatic) amine.

A curable oligomer is the reaction product of: x equivalents of at least one diepoxy a); y1 equivalents of at least one unsaturated carboxylic acid b); and y2 equivalents of at least one polycarboxylic acid c) comprising at least three carboxylic acid groups. x is defined as the number of moles of epoxy groups in component a), y1 is defined as the number of moles of carboxylic acid groups in component b), and y2 is defined as the number of moles of carboxylic acid groups in component c).