Abstract: An alkali-soluble coating formulation is disclosed. Such a coating formulation comprises a volatile, aqueous carrier; an alkali-soluble hydrophilic polymer, in the aqueous carrier; an alkali-soluble multivalent metal ion-containing bond-forming agent, also in the aqueous carrier; and an effective amount of a volatile alkali ingredient, in the aqueous carrier, for dissolving both the hydrophilic polymer as well as the multivalent metal ion-containing bond-forming agent. The relative amounts of hydrophilic polymer and multivalent metal ion-containing bond-forming agent, in the aqueous carrier, are effective for forming an alkali-soluble polymeric coating on a substrate, upon evaporation of the volatile, aqueous carrier therefrom.

Abstract: An alkali-soluble coating formulation is disclosed. Such a coating formulation comprises a volatile, aqueous carrier; an alkali-soluble hydrophilic polymer, in the aqueous carrier; an alkali-soluble multivalent metal ion-containing bond-forming agent, also in the aqueous carrier; and an effective amount of a volatile alkali ingredient, in the aqueous carrier, for dissolving both the hydrophilic polymer as well as the multivalent metal ion-containing bond-forming agent. The relative amounts of hydrophilic polymer and multivalent metal ion-containing bond-forming agent, in the aqueous carrier, are effective for forming an alkali-soluble polymeric coating on a substrate, upon evaporation of the volatile, aqueous carrier therefrom.

Abstract: An alkali-soluble coating formulation is disclosed. Such a coating formulation comprises a volatile, aqueous carrier; an alkali-soluble hydrophilic polymer, in the aqueous carrier; an alkali-soluble multivalent metal ion-containing bond-forming agent, also in the aqueous carrier; and an effective amount of a volatile alkali ingredient, in the aqueous carrier, for dissolving both the hydrophilic polymer as well as the multivalent metal ion-containing bond-forming agent. The relative amounts of hydrophilic polymer and multivalent metal ion-containing bond-forming agent, in the aqueous carrier, are effective for forming an alkali-soluble polymeric coating on a substrate, upon evaporation of the volatile, aqueous carrier therefrom.

Abstract: A bulk process for the formation of hydroxyl-containing polymeric compositions comprising the reaction in the presence of a Lewis acid catalyst of a hydroxyl group containing ethylenic polymer with a cyclic ester in the absence of a solvent is described. The compositions have enhanced film-forming characteristics including flexibility, resistance to corrosion, and the like.

Abstract: This invention relates to compatible blends of liquid crystal main chain polymer and liquid crystal side polymers having the same or similar mesogenic groups.

Abstract: This invention relates to compatible blends of liquid crystal main chain polymers and liquid crystal side chain polymers having the same or similar mesogenic groups.

Abstract: A substituted polybenzimidazole polymer is disclosed wherein sulfoalkyl derivatives of polybenzimidazole are produced by the reaction of a polybenzimidazole polymer with a sultone. Beta sultones may be directly reacted with the polybenzimidazole polymer to produce a sulfoethyl derivative of polybenzimidazole. However, when gamma, delta or eta sultones are used, the polybenzimidazole polymer preferably is first reacted with an alkali hydride to produce the polyanion of polybenzimidazole. The polybenzimidazole polyanion is then reacted with the sultone to produce a sulfoalkyl derivative of polybenzimidazole polymer. These derivatives may find great use as ion exchange devices or for reverse osmosis or ultrafiltration devices.

Abstract: A novel heat-curable acrylic-terminated monomer is provided which exhibits an optically anisotropic melt phase at a temperature which enables it to undergo melt processing in the formation of molded articles, etc. Subsequent to melt processing articles prepared from the monomer are capable of being cured to produce a thermoset self-reinforced composite which is soft and flexible relative to prior art monomers. The monomer may, for example, consist essentially of the reaction product of a methacrylic-substituted phenol and terephthalic acid.

Abstract: A novel heat-curable acrylic-terminated monomer is provided which exhibits an optically anisotropic melt phase at a temperature which enables it to undergo melt processing in the formation of molded articles, etc. Subsequent to melt processing articles prepared from the monomer are capable of being cured to produce a thermoset self-reinforced composite which is soft and flexible relative to prior art monomers. The monomer may, for example, consist essentially of the reaction product of a methacrylic-substituted phenol and terephthalic acid.

Abstract: A novel polyester is provided which is capable of forming an anisotropic melt and which, subsequent to being formed into shaped articles, is capable of crosslinking to render the article highly heat stable. The polyester preferably consists of approximately 1 to 40 mole percent of 3-allyl-4-oxybenzoyl and/or 3-methylallyl-4-oxybenzoyl moieties copolymerized with oxyaroyl moieties and/or dioxaryl and dicarboxyaryl moieties. The process comprises heating a monomer mixture of allylically substituted hydroxybenzoic acid and aromatic hydroxy acids and/or aromatic diols and diacids to prepare the polyester; melt processing the polyester to form a solid shaped article; and heating to substantially crosslink the allylic groups while substantially retaining the configuration of the solid shaped article.

Abstract: The invention relates to the preparation of N-.alpha.-alkoxyethyl-carboxylic acid amides from dimethyl acetal and a carboxylic acid amide such as acetamide and to the preparation of secondary N-vinyl carboxylic acid amides such as N-vinyl acetamide therefrom.The reaction of dimethyl acetal and the carboxylic acid amide involves an equilibrium disproportionation wherein excess dimethyl acetal is used in sufficient amounts, e.g., in a molar ratio of from about 2 to 60:1 mole ratio, so as to force the equilibrium to the desired N-.alpha.-alkoxyethyl-carboxylic acid amide intermediate product. Equilibrium is reached in about 0.1 to 150 hours at a temperature about 0.degree. to 100.degree. C. The intermediate N-.alpha.-alkoxyethyl-carboxylic acid amide is pyrolyzed in accordance with a known pyrolysis reaction so as to obtain the corresponding N-vinyl acetamide.

Abstract: Curable compositions are provided by the interaction of bis(2-hydroxyethyl) tetrachloroterephthalate with acrylic acid derivatives to form flame retardant unsaturated esters of tetrachloroterephthalic acid.

Abstract: The present invention provides a melt processable composition and process for preparing the same from a blend of a normally non-melt processable wholly aromatic polyester and a phosphorus ester. The presence of the specifically defined phosphorus ester in the composition in amounts of up to about 40 percent by weight renders the normally non-melt processable wholly aromatic polyester melt processable.

Abstract: There is disclosed a pressure sensitive adhesive composition having improved adhesive strength and tack. This adhesive composition comprises three terpolymers, each terpolymer comprising an alkyl acrylate wherein the alkyl group contains four to fourteen carbon atoms, a vinyl ester of a saturated carboxylic acid having from one to six carbon atoms, and an ethylenically unsaturated carboxylic acid having three to five carbon atoms. The composition of terpolymers comprises a mixture of three of the terpolymers described above wherein each individual terpolymer has a different number average molecular weight. The final terpolymer composition has a specifically defined number average molecular weight, and a specifically defined molecular weight distribution.

Abstract: This invention provides an improved process for producing alkyl ethers of polygalactomannan gum by contacting polygalactomannan gum with alkyl halide in the presence of a metal hydroxide catalyst and a quaternary ammonium phase-transfer agent.

Abstract: An improved process and product for use in ultraviolet curable pressure-sensitive adhesives is disclosed. The product, a standard ultraviolet curable pressure-sensitive adhesive to which has been added a benzoin C.sub.1 -C.sub.12 hydrocarbon alkyl ether and a triplet state sensitizer, exhibits adhesive strength properties which are substantially greater than those of prior art systems.

Abstract: A process for preparing certain halogenated aromatic polyesters having a predetermined molecular weight is provided. Such polyesters are prepared by solution polymerization of an appropriate bisphenol and diacid halide wherein the diacid halide is added to a solution containing the bisphenol until the viscosity of the resulting polymer containing solution reaches a predetermined solution viscosity limit at which time the further addition of diacid halide is terminated. The solution viscosity limit is indicative of the attainment of said predetermined molecular weight. The identification of said solution viscosity limit is achieved by a feedback mechanism wherein the viscosity of the polymer containing solution is monitored or sensed during or after the addition of the diacid halide to the bisphenol containing solution.

Abstract: This invention provides high temperature performance polyester resins which contain polyphenyl ether blocks as recurring structural units. The polyester resins are melt stable at temperatures up to about 400.degree. C.

Abstract: This invention provides high temperature performance polyurea resins which contain polyphenyl ether blocks as recurring structural units. The polyurea resins are melt stable at temperatures up to about 400.degree. C and higher.

Abstract: Self-extinguishing, non-dripping, melt processible copolyesters of reduced toxicity are provided from a mixture of diols comprising from about 25 to 60 mole percent of phenolphthalein and from about 75 to 40 mole percent of ethylene glycol and a dicarboxylic acid comprising isophthalic acid and/or terephthalic acid.