Abstract: The present invention is a cyanato group containing phenolic resin, and method to prepare the resin. The resin of the present invention is stable and has a long shelf life. This is indicated by the gel time of greater than 1 minute, preferably greater than 2 minutes, more preferably greater than 10 minutes. The resin has substantially no smoke generation during gel time measurement at 155.degree. C.

Abstract: A coating resin composition comprising, as a coating-forming resin binder, an epoxy resin derivative containing a functional group represented by the following formula ##STR1## wherein R.sub.1 represents a hydrogen atom or methyl group; each of R.sub.2 and R.sub.3 represents a C.sub.1 -C.sub.5 alkyl group independently of the other;R.sub.4 represents a C.sub.2 -C.sub.6 alkylene group in which an ether group (--O--) may be present in the carbon chain; andn represents an integer from 1 to 6.This coating resin composition is useful for cathodic electrodeposition coating.

Abstract: An electrodepositable cathodic resin is disclosed. The resin is the reaction product of a polyepoxide amine adduct and a crosslinking agent which is polyol modified tetramethylxylylene diisocyanate blocked with alcohol or caprolactam. The resulting resin results in a nonyellowing film which is very smooth.

Abstract: Epoxy end-capped oligomers of 1,3-diolefin compounds of Formula I ##STR1## These oligomers are formed by: (a) reacting a 1,3-diolefin compound having 4 to 12 carbon atoms per molecule with a difunctional initiator comprising anionic reactive sites to form an intermediate living oligomer comprising two anionic end groups; and(b) reacting the intermediate living oligomer with a halohydrin compound to epoxidize the two anionic end groups and form the desired oligomer.The oligomers are subsequently reacted with an epoxidizing agent to form a polymer having epoxy-derived linkages at regular intervals along the chain of the polymer.

Abstract: Curable compositions comprise(A) a polyglycidyl ether of a polyhydric phenol,(B) a polyglycidyl ether of a polyhydric alcohol,(C) a nitrogen-containing latent hardener for epoxide resins and(D) as cure accelerator dispersed as a powder in the composition, a solid solution of a polymeric phenol with an aliphatic polyamine having two or more amine groups, each of the amine groups being tertiary and at least two of the amine groups being dimethylamino groups.The compositions are useful as adhesives, sealants, laminating resins and coatings.

Abstract: A novel glycidyl sulfonamide compound having a (poly)siloxane main chain of its molecule is used alone or in admixture with an epoxy resin to give a cured material being excellent in flexibility, elongation and impact strength without deteriorating thermal resistance, chemical resistance and water absorption thereof. An epoxy resin composition or a resin composition for an epoxy paint containing a glycidyl sulfonamide compound, the epoxy resin and a curling agent for epoxy resin provides a cured material or a coating film having the above-mentioned excellent properties. A process for preparing a glycidyl sulfonamide compound characterized in that subjecting an amine modified silicone having a (poly)siloxane main chain of its molecule to condensation reaction with a sulfonyl chloride to give a sulfonamide compound, which is subjected to an addition reaction with an epihalohydrin to give the glycidyl sulfonamide compound.

Abstract: Graft polymers which are obtainable from(A) 2%-30% by weight of an addition product from alkylene oxide onto an aliphatic alcohol which is at least trihydric having 3 to 10 carbon atoms and(B) 70%-98% by weight of a grafted-on monomer mixture of(1) 20% to 50% by weight of an N-substituted or N-unsubstituted acrylamide or methacrylamide and(2) 50% to 80% by weight of an N-vinyl-substituted amide or of a vinyl ester, derived in each case from a saturated aliphatic monocarboxylic acid,where the sums of (A) and (B), and (1) and (2) in each case add up to 100%.These novel graft polymer are suitable as dyeing assistants, particularly as padding assistants or liquor binders when dyeing cellulose fibre materials.

Abstract: Discrete, non-agglomerating particles of polyalkylene carbonate are produced by solvent/non-solvent precipitation using certain solvent/non-solvent systems. The free-flowing particles obtaine are from 30 to 3000 microns in diameter and are suitable for use in a variety of applications, particularly the preparation of foamed articles.

Abstract: An epoxy resin composition comprising an epoxy resin which is solid at room temperature and contains on average more than epoxy group per molecule, and a quaternary morpholinium salt as advancement catalyst.When advanced with compounds containing two phenolic hydroxyl groups, these compositions give excellent products of low viscosity which are suitable, for example, for use in powder resin coating.

Abstract: This invention is directed to a compound of the formula ##STR1## wherein the substituents are defined hereinbelow. R is an aliphatic group, cycloaliphatic group, aryl group or araliphatic group andR.sup.1 and R.sup.2 are each independently hydrogen, lower alkyl or aryl,R.sup.3 is a chemical bond or ##STR2## Z and Z.sup.1 are independently O or NH, R.sup.5 is R,R.sup.4 is lower aliphatic, arylene, aryl lower alkylene or cycloaliphatic,wherein the aliphatic group contains up to 10 carbon atoms in the principal chain and up to a total of 15 carbon atoms;the cycloaliphatic group contains up to 10 ring carbon atoms and up to a total of 15 carbon atoms; andthe aryl group is an aromatic group containing from 6 to 10 ring carbon atoms and up to a total of 15 carbon atoms.These compounds are used as accelerators in epoxy resin compositions, comprising (a) an epoxy resin, (b) dicyandiamide and optionally (c) solvents, fillers, reinforcement materials or inert materials, pigments or aids, for the production of moldings.

Abstract: Preparation of pigment paste resins for cathodically depositable coating compositions based on epoxy resin-amine adducts obtained from unmodified or modified epoxy resins, which by partial or complete reaction of secondary amino groups with formaldehyde contain oxazolidine structures; whose tertiary amino groups introduced via primary-tertiary diamines are quaternized to at least 20 mol % using an organic acid and a monoglycidyl compound and which in a solution adjusted with water to a correct application viscosity contain a total of 80 to 100 millimoles of acid per 100 g of solid resin are described. The pigment pastes possess, both in concentrated and dilute form, a stability which meets practical requirements and, because of their rheology, are readily processed to ensure formation of defect-free films both during deposition and crosslinking by stoving. The applied films have good properties.

Abstract: An epoxy resin based powder coating composition is disclosed, comprising an epoxy resin, a reaction product of dicyclopentadiene and maleic anhydride, and a cure accelerator.The coating composition may further comprise an aromatic acid anhydride based curing agent, an impact modifier and a surface smoothing agent.The coating composition has stable powder characteristic and provides good heat resistance and electrical insulation.

Abstract: Polymers having a sequential structure of the following formula--A--X--B].sub.r (I)with r=1 to 20, in which --A-- is a polymer of a cyclic carbonate, --B-- is a polymer of a lactone and --X-- is a link, with a decreasing concentration of residues of the cyclic carbonate in the --B-- direction and a decreasing concentration of residues of the lactone in the --A-- direction, and the use of the these products as molding compositions.

Abstract: A method of producing organo-phophorus polymers is disclosed. The polymers will exhibit zero shrinkage and even expansion, will be useful in high voltage, high temperature electrical applications and will exhibit mechanical strength and flame retardant properties.

Abstract: Heat curable coating compositions particularly suitable as coatings for metal can ends are made from aqueous dispersions of epoxy resins, acrylic resins which are copolymers of polymerizable acids and other monomers, phenoxy resins, alkylated phenol novolac resins and resol resins.

Abstract: A composition is disclosed containing an epoxidized fatty acid ester, an aromatic amine curing agent and an acid or metal salt accelerator. The composition can optionally contain a polyglycidyl ether of a polyhydric alcohol, an unsaturated monomer and a monoepoxy diluent. The composition has long pot life at room temperature and good flexibility and elongation.

Abstract: Stereoregular, crystalline, isotactic poly(propylene oxide) is prepared using an effective concentration of a hydrotalcite type catalyst in a process conducted above a temperature of about 100.degree. C. and below about 130.degree. C.

Abstract: The invention relates to resorbable homopolymers and copolymers which are substantially free from polymerization catalysts and processes for preparing them.

Abstract: The present invention provides an improved epoxy resin composition comprising an epoxy resin and a novel imide compound represented by the formula ##STR1## wherein X represents an --NH.sub.2 group and/or --OH group, Ar.sub.1 and Ar.sub.2 independently represent an aromatic residue, R.sub.1 represents a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, R.sub.2 represent a hydrogen atom, an alkyl or alkoxy group having from 1 to 20 carbon atoms or hydroxyl group, and each of m and n represents a number of from 0 to 30.

Abstract: Electrical laminates are prepared from prepreg materials prepared by impregnating a substrate with a laminating varnish comprising a solvent solution of a curable composition comprising (A) a mixture of at least one epoxy resing having an average of more than 1 but not more than 2 vicinal epoxy groups per molecule and at least one epoxy resin having an average of more than 2 vicinal epoxy groups per molecule; (B) a mixture of at least one phenolic hydroxyl-containing compound having an average of more than 1 but not more than 2 phenolic hydroxyl groups per molecule and at least one phenolic hydroxyl-containing compound having an average of more than 2 phenolic hydroxyl groups per molecule; and (C) at least one catalyst for effecting the reaction between (A) and (B).