Abstract: Unsaturated polyester resin compositions with improved weathering characteristics are presented. Further, the manufacture of these unsaturated polyester resin compositions and their potential applications are presented.

Abstract: A curable halogen-containing epoxy resin composition comprising: (a) at least one epoxy resin; (b) at least one hardener; wherein the hardener is a compound containing a phenolic hydroxyl functionality or a compound capable of generating a phenolic hydroxyl functionality upon heating; and (c) a catalytic amount of a catalyst system comprising a combination of: (i) at least a first catalyst compound comprising at least one nitrogen-containing catalyst compound; and (ii) at least a second catalyst compound comprising at least one phosphorus-containing catalyst compound; wherein at least one or more of the above components (a)-(c) is halogenated or contains halogen; or if none of the above components are halogenated wherein the resin composition includes (d) a halogenated or halogen-containing flame retardant compound that does not contain nitrogen. The stroke cure gel time of the resin composition is maintained from 90 seconds to 600 seconds when measured at 170° C.

Abstract: Artificial polyester hair, which retains fiber physical properties of general polyester fibers such as heat resistance and a degree of strength and elongation, are excellent in the setting property, transparency and touch feeling, and has excellent flame retardancy, is provided. The flame retardant artificial polyester hair, which retains fiber properties such as heat resistance and a degree of strength and elongation and is excellent in suitability for setting, transparency and touch feeling, is characterized by being obtained by melt-spinning a composition obtained by melt-kneading a polyester together with a bromine-containing flame retardant, the bromine-containing flame retardant having a melting point of 160 to 320° C. and a 5% loss on heat temperature of 220 to 450° C. or the bromine-containing flame retardant being a mixture of a bromine-containing flame retardant (b1) having a 5% loss on heat temperature of 220 to 310° C.

Abstract: This invention relates to a composition comprising a mixture of a fumarate, maleate and 2-allyloxy-succinate esters falling within the area defined by points A, B, C, and D of a triangular chemical composition diagram (hereafter "TCCD") said points representing respectively the ranges of concentration of said maleate, fumarate and succinate in said composition, a process for preparing the same and the use thereof as a reactive diluent in a paint or coating formulation.

Abstract: This invention relates to low pressure sheet molding compounds and, more particularly, to a composition that is moldable at pressures below about 100 psi, said composition being made by combining: (A) an unsaturated prepolymer resin; (B) a monomeric unsaturated polymerizable material containing a terminal ethylene group; (C) a hydroxy-terminated polyester having a molecular weight in the range of about 500 to about 3000; (D) a polyisocyanate; and (E) a polymerization initiator; the mole ratio of NCO groups from (D) to OH groups from (C) being in the range of about 0.1 to about 10.

Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.

Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.

Abstract: A shrink resistant resin composition which is curable at room temperature. The composition is (a) a curable unsaturated polyester resin, (b) an accelerator, (c) a low temperature free radical peroxide initiator, and (d) a low profile additive comprising polyolefin powder. The resin composition may be cured at room temperature to provide a molded article which exhibits improved shrink-resistance.

Abstract: Unsaturated polyester resin-based compositions that are modified for unexpected improvement in uniform, low optical distortion and/or improved tint speed by the addition of one or more additives selected from an allylic ester and/or an acrylic monomer, together with an exotherm depressant, making the modified polyester resin-based composition commercially viable for casting ophthalmic lenses. The additive(s) and exotherm depressant are useful to modify the polyester for sufficient enhancement of optical distortion and/or tint speed such that any unsaturated polyester resin, capable of producing a clear, low color casting, will be improved sufficiently to provide a composition having the required properties for an ophthalmic lens.

Abstract: The unsaturated polyester resin molding composition of the invention comprising an unsaturated polyester, a vinyl monomer, a stabilizer, a thermoplastic resin, an organic peroxide, a fluidity modifier, a thickening agent, a filler and a fibrous reinforcement material possesses curability at low temperatures of about 50.degree. to 120.degree. C., good fluidity and filling property on the occasion of molding at low pressures of about 0.1 to 20 kgf/cm.sup.2, and good storage stability at room temperature.

Abstract: Quickly curable unsaturated polyester composition with improved surface characteristics and stability in storage contains 20-40 weight parts of unsaturated polyester, 20-60 weight parts of vinyl monomer, 0.01-1.0 weight parts of BHT (ditertiary butyl hydroxy toluene), and 10-40 weight parts of thermoplastic resin such that the total is 100 weight parts. In addition, 0.001-0.1 weight parts of compound with effect of inhibiting polymerization at temperatures over 100.degree. C. are contained against the total of 100 weight parts. Molding materials are obtained by impregnating glass fibers with such compositions and products are obtained by curing such molding materials.

Abstract: A flame-retardant synthetic resin composition containing (A) a synthetic resin and (B) a compound having a 3-halogeno-2-hydroxypropyl group, which shows excellent thermal stability during molding and having good light resistance, is disclosed. A flame retardant comprising a compound having a 3-halogeno-2-hydroxypropyl group is also disclosed.

Abstract: A sheet molding composition is disclosed which includes a four component resinous system which comprises (a) an unsaturated polyester comprising a polycondensation product of one or more dihydric alcohols and one or more ethylenically unsaturated polycarboxylic acids; (b) one or more low-profile additives which are thermoplastic polymers which cause phase separation and porosity during the curing reaction; (c) one or more olefinically unsaturated monomers which copolymerize with the unsaturated polyester; and, (d) one or more compatible components comprising at least one compound containing one or more aromatic substituents. The compatible components are compatible with the reacted unsaturated polyester and monomer during cure and impart improved surface characteristics when added to low-profile resin systems.

Abstract: Disclosed is a concrete non-cure material for preventing the surface of cement mortar, which maintains contact with said material, from setting or hardening. This invention also discloses a concrete product or concrete structure with surface decorations produced by affixing the concrete non-cure material to the surface of the decorative material or to the inner surface of a form for a concrete molding and production methods therefor.

Abstract: An unsaturated polyester resin composition contains an unsaturated polyester, a vinyl monomer copolymerizable with the unsaturated polyester, a maleimide compound and a hindered phenolic compound and/or carbon black.

Abstract: An improved polymeric compositions containing 1,3-diphenoxy-2-propanol as a heat stabilization agent and antioxidant is provided. This invention relates to polymeric compositions containing 1,3-diphenoxy-2-propanol as a heat stabilization agent, and antioxidant, and, optionally, as flow control agent; more particularly, this stabilizer is especially suited to protect polymeric coatings- and adhesive which are heated and flow, such as hot melt coating- and adhesive compositions.

Abstract: A process for improving the flame retardancy, hygroscopic, soil release and other properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water-soluble monomer and an organic halogen-containing hydrophobic carrier compound at a temperature of between about 40.degree. C. to 100.degree. C. Polymerization of the monomer is thereafter initiated by a chemical or physical initiator to form a polymer evenly disposed on the substrate. The flame retardancy, hygroscopic, soil release and other surface properties of the substrate are thereby improved. The mixture may be in the form of an emulsion wherein the hydrophobic carrier compound is emulsified by an appropriate agent. The invention also pertains to the improved substrates prepared in accordance with the present process.

Abstract: Molding materials having a long shelf life consist of an unsaturated polyester resin, monomers, conventional additives and an inhibitor combination comprising a phenol or quinone, a phosphine or an ester of phosphorous acid, and a metal cation in the form of a salt or a complex which is soluble in the polyester resin.

Abstract: Colored unsaturated polyesters having copolymerized therein lignin and lignin derivatives which condense during polymerization into the polyester chain are disclosed. The lignin moieties are thermally stable at the polymer processing temperature and are nonextractable from the polymer making these colored polyesters suitable for use in bathroom fixtures, boats, certain automotive applications and the like.

Abstract: There is disclosed thickened, low shrinkage polyester molding compositions having improved pigmentation. The improved pigmentation in thickenable polyester molding compositions containing a carboxylated vinyl ester polymer low profile additive is achieved either by incorporating a surfactant in the composition, by using as the low profile additive a vinyl acetate/maleic acid copolymer, or by a combination of the two methods.

Abstract: New compositions of matter are disclosed which are allylated di and polycyclopentadiene diphenols. These new compositions are useful in thermoset resin compositions comprising styrene, a dicyclopentadiene-modified unsaturated polyesteramide and said allylated di and polycyclopentadiene diphenol(s).

Abstract: The invention is a process for monitored cross-linking of unsaturated polyester resins in the presence of a metal-ion-containing accelerator and an organic peroxide initiator, complemented by promotor in some cases. According to this process, the cross-linking is carried out in the presence of one of the compounds from the group consisting of alizarin, sodium alizarinesulfonate, 3-nitroalizarin, chinizarine, or purpurin, where the substituents are H atoms or OH, NO.sub.2, SO.sub.3 H, or SO.sub.3 Na groups with the restriction that at least one of them should be other than H, which is present in a ratio of from 0.005 to 0.5, preferably 0.01 to 0.1 percent (mass/mass), compared to the mass of the polyester resin, and cross-linking is trailed by the color change in the system. The invention permits all of the chemical-technological processes involved in the processing of unsaturated polyester resins to be monitored visually.

Abstract: Disclosed is a curable resin composition comprising (a) at least one maleimide compound selected from the group consisting of N-(alkenylphenyl)maleimide derivatives, and dimers and polymers thereof and (b) one or more kinds of epoxy resins, each having at least one epoxy group in the unit molecule thereof. The resin composition may contain, besides the above two components, an amino compound as a further component (c). The resin composition may comprise a prepolymer of any two components among the three components (a), (b) and (c) and the remaining component. The resin compositions are useful as molding materials, for the fabrication of laminates, and as varnishes, including insulation varnishes and impregnating varnishes.

Abstract: There is disclosed thickened, low shrinkage polyester molding compositions having improved pigmentation. The improved pigmentation in thickenable polyester molding compositions is achieved by using as the low profile additive a vinyl acetate/maleic acid copolymer, and optionally incorporating a surfactant in the composition.

Abstract: A method for the uniform blending of additives into thermoplastic synthetic resins. A solution or finely divided dispersion of the additive is produced in a polymerizable cyclic ester of the general formula: ##STR1## wherein R represents respectively hydrogen or an alkyl group of 1-18 carbon atoms,A represents a --O-- or --COO-- group,x and y represent integers from 1 to 15, andz represents 0 or 1.This solution or dispersion, optionally after polymerization of the cyclic ester, is admixed to the thermoplastic synthetic resin at the end of its manufacturing process or in a subsequent processing stage.

Abstract: This invention provides a formulation comprising a thermosetting polyester, p-methylstyrene, a hydroquinone stabilizer, and 4,4'-thiobis-(3-methyl-6-t-butyl)-phenol.