Abstract: The compositions are anhydride-hardened epoxy resins which are filled with calcium-magnesium or calcium carbonate particles having a coating of a multibasic organic or inorganic acid bonded to the surfaces of the particles. Castings or moldings made therefrom, particularly electrical parts for SF.sub.6 technology, exhibit improved mechanical properties such as bending strength and impact strength.

Abstract: The invention relates to a filled, resin composition and a method for the manufacture therefor. The composition is a matrix of an epoxy resin, a carbonate-containing filler, particularly calcium-magnesium carbonate or calcium carbonate, an anhydride hardener and an adhesive at 0.1 to 3.0 percent by weight, relative to the weight of the filler. The adhesive is a multibasic organic acid, an organic hydroxy acid such as malic acid or an amino acid. In the process, the adhesive can first be added to the hardener or to the filler containing resin before hardener is added.

Abstract: Adducts of tetrasubstituted pyrophosphato titanates and/or amines, having the formulaX.sub.c Ti[OP(O)(OR.sup.1)OP(O)(OR.sup.2)OR.sup.3)].sub.4-c (NR.sup.4 R.sup.5 R.sup.6)d[P(OR.sup.7)(OR.sup.8)(OR.sup.9)]e,are useful in improving the physical and chemical properties of many filled resins.

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: The present invention relates to a cement which may be used for the fixation of osseous prostheses. This cement is obtained by hardening of a mixture comprising:(a) at least one epoxide resin having a high reactivity and a very low toxicity, consisting of a diepoxide of a glycidyl ether of bisphenol A;(b) a reactive, non-toxic suppling resin, consisting preferably of hydroxyl-terminated polybutadiene;(c) a mineral filler in powder form;(d) a hardener capable of reacting with said epoxide resin to effect hardening thereof, and(e) a hardening accelerator.The invention is more particularly applicable to the fixation of hip prostheses.

Abstract: A zinc-rich coating for use on metallic substrates contains particulate zinc, thermoplastic polyhydroxyether and zinc phosphosilicate.

Abstract: The invention relates to a method for the manufacture of transparent casting resins. According to the invention, a liquid acid anhydride (b) is admixed to a premixture (a), which is liquid at room temperture, of zinc octoate, a low-molecular weight acid ester and, optionally, an organic phosphite, and this mixture of (a) and (b) is added, preferably at temperatures .ltoreq.50.degree. C., to liquid aromatic diglycidyl ethers. Diphenyldecyl phosphite is particularly well suited as an organic phosphite. The casting resins obtained are transparent and find use particularly for casting-in and encapsulating opto-electronic components such as light-emitting diodes (and diode displays), photo diodes and photo transistors.

Abstract: In a non-asbestos friction material comprising ferrous metal particle and/or ferrous metal fiber, organic dust, inorganic substance, lubricant, metal powder, fibrous reinforcing material and thermosetting resin, the friction material being characterized in containing 0.01-5.0 wt. % of at least one material selected from the group consisting of boric acid, borate, phosphoric acid and phosphate as an anticorrosive component. Further, in the non-asbestos friction material containing rubber, organic friction dust, inorganic powder, lubricant, non-ferrous metal powder and/or non-ferrous fiber, fibrous reinforcing material, thermosetting resin and other friction material, the friction material characterized in containing at least one material selected from the group consisting of boric acid, borate, phosphate acid and phosphate as an anti-corrosive component and containing no ferrous component.

Abstract: This invention relates to fire retarded polymeric composition comprising a polymeric material, red phosphorus and a phosphine suppressant which is a copper salt.

Abstract: A coating composition for a metal substrate having excellent adhesion, corrosion resistance and welding property which comprises (A) an epoxy resin, (B) an organic phosphorus compound, (C) zinc powder, of which a portion being replaceable by (E) a solid electroconductive material, and (D) a magnesium compound dispersed in a liquid medium, the weight proportion of the components (A) and (B) being from 45:55 to 95:5, the content of the component (C) corresponding to from 30 to 95% by weight based on the total weight of the non-volatile components in the composition and the content of the component (D) being from 0.1 to 5% by weight based on the total weight of the non-volatile components in the composition.

Abstract: A jacketed telephone cord is jacketed with a clear, flame retardant, stable composition which essentially does not exhibit vertical burn characteristics comprising an all phosphate plasticized PVC stabilized with the combination of a metallic stabilizer and a cycloaliphatic epoxy.

Abstract: Asbestiform crystalline calcium M phosphate, where M is sodium or lithium, having a length to average diameter ratio of at least 5:1, can be prepared by forming a melt of a source of oxygen, calcium, phosphorus and M having a mole ratio of about 15 percent to about 30 percent M.sub.2 O, about 48 percent to about 60 percent P.sub.2 O.sub.5 and about 20 percent to about 37 percent CaO, cooling the melt within the range of about 500.degree. C. to about 750.degree. C. for a sufficient time to permit blocks of calcium M phosphate to form, and fiberizing the blocks into the asbestiform crystals. Such asbestiform crystalline calcium M phosphates are useful to prepare composites of organic polymeric materials.

Abstract: A corrosion inhibiting material comprises a water soluble zinc oxide/phosphorus pentoxide/alumina glass which, when in contact with water, releases ions which inhibit corrosion of adjacent metal surfaces. Advantageously the glass is finely ground and then dispersed in a resin carrier to form a paint. The glass composition is preferably 54.6 to 63.3 mol % zinc oxide, 35.8 to 45.3 mol % phosphorus pentoxide; the remainder at least 0.1 mol % aluminum oxide.

Abstract: Sulfur or peroxy cured compositions prepared from epoxidized diene rubbers.

Abstract: A jet printing ink composition comprises 2 to 60 wt.% of a binder precursor of an alkoxysilane having the formula R.sub.4-n Si(OH).sub.n (n=0 to 2; and R represents a C.sub.1 -C.sub.4 alkoxy group, methoxyethoxy, ethoxyethoxy or phenoxy group) or an oligomer thereof; and 25 to 95 wt.% of a solvent for said alkoxysilane or oligomer thereof; 0.001 to 5 wt.% of a solvent soluble acid; and 0.1 to 8 wt.% of a solvent soluble dyestuff, if necessary, further comprises up to 2 wt.% of a solvent soluble inert silicone oil for inhibiting blotting and up to 3 wt.% of an electroconductive agent.

Abstract: The invention relates to quick-setting epoxy resin compounds of carboxylic-acid anhydrides, diglycidyl esters and zinc octoate as accelerator, dissolved in a low-molecular acid ester and optionally, an organic phosphorus compound. Particularly well suited diglycidyl esters are hexahydrophthalic-acid diglycidyl ester, phthalic-acid diglycidyl ester, tetrahydrophthalic-acid diglycidyl ester and aliphatic diglycidyl esters. The epoxy resin compounds can be used for casting resin and molding compounds as well as for adhesive and impregnating materials. They find particular use for electrical components and modules.

Abstract: Novel compositions of matter comprising the reaction product of beta-diketones and epoxy resins blended with monomeric or polymeric phosphonium salts are hereby provided. The beta-diketones useful herein are those which enolize in amounts that render them sufficiently acidic and reactable with epoxy groups of the resin. The novel reaction products can be dispersed in water to form pretreatment agents and they can be formulated with curing agents to form coating compositions. Ferrous metals treated with the compositions of this invention exhibit excellent corrosion resistance properties.