Abstract: There is provided a dental primer composition capable of obtaining high adhesive strength to both dentin and enamel, as a pretreatment material for a chemically polymerizable adhesive. This composition is a dental primer composition comprising a polymerizable monomer containing an acidic group, water, aryl borate and transition metal compound.

Abstract: A granular material is presented comprising inorganic particles coated with an organometallic polymeric binder, the organometallic polymeric binder comprising the reaction product of water with at least one component of a binder precursor composition. The binder precursor composition is selected from the group consisting of 1) a first composition comprising an inert organic polymer and a hydrolyzable liquid organometallic solvent; 2) a second composition comprising a water reactive organic polymer dissolved in an inert organic solvent; and 3) a third composition comprising the water reactive organic polymer dissolved in the hydrolyzable liquid organometallic solvent.

Abstract: Electrically conductive and abrasion resistant polymeric compositions, methods of fabrication thereof and uses thereof are described. Admixtures of abrasion resistant materials and electrically conductive polymeric materials are formed. Many of these admixtures are light transmitting and can be used as an abrasion resistant light transmitting electrostatic discharge layers. The light transmitting discharge layer is useful as a surface coating for visual displays such as CRT screens to avoid electrostatic accumulation of dust and scratching.

Abstract: Metal organic compounds containing both cobalt and nickel bound to boron are effective adhesion promoters for bonding rubber to brass-coated metal used as a reinforcement.

Abstract: This invention relates to an N-vinyl heterocyclic copolymer in substantially pure deionized water or in aqueous alcoholic solution which exhibits significantly reduced color and odor and which is obtained by contacting an alcohol-copolymer mixture with water and a nitrogen containing, trivalent boron complex compound selected from the group of borane-ammonia, borane-lower alkylamine, tetra-lower alkyl ammonium octahydrotriborate, morpholine-borane, lower alkyl morpholine-borane, silylamino borane and mixtures thereof and stripping alcohol from the resulting mixture under vacuum at between about 100 and about 740 mm Hg below absolute whereby an aqueous, 10-70 wt. % solids solution of the copolymer is obtained having a water white color stability of more than a year.

Abstract: An insulating material characterized by that said insulating material is made by curing a mixture composed of a bisphenol A type epoxy resin having purity which is equal to or more than 90% and an organic filler, the thermal conductivity thereof is in a range of 5.0.times.10.sup.-3 to 18.0.times.10.sup.-3 (cal/.degree. C..multidot.cm.multidot.sec) and the glass transition temperature thereof is in a range of 164.degree. to 240.degree. C.

Abstract: A copolymeric polycarbonate containing repeating constituent units having formula [I] below and repeating constituent units having formula [II] below in a molar ratio of from 98:2 to 40:60. ##STR1## The above-described copolymeric polycarbonates have excellent resistance to chemicals, heat resistance and flame retardancy without compromising the impact resistance and good hues intrinsic to polycarbonates.

Abstract: The invention is an aqueous autodeposition coating composition that produces a film that has a better adherence and corrosion resistance than the films formed by the prior-art coating compositions, but which does so without a rinse treatment (for example, a chromium containing solution, rinse) prior to film curing. The aqueous autodeposition coating composition has a pH of 1.6 to 5.0 and contains(i) water-dispersible or water-soluble organic film-forming resin,(ii) at least one of fluoride ions or fluoride ions and complex fluoride ions,(iii) hexavalent chromium ion or hexavalent chromium ion+trivalent chromium ion, and(iv) tungstate ion and/or molybdate ion.

Abstract: A process for reducing the pH of anionic polyurethane dispersions which are stabilized by carboxylate or sulfonate groups, which comprises adding a compound which has from one to four ester groups but no acid group or acid halide or anhydride group to the dispersions.

Abstract: Polycarbonate resin compositions suitable for optical uses and methods for their preparation are disclosed. The disclosed compositions are comprised of polycarbonate resins and .alpha.-olefin oligomers and exhibit good mold release and thermal stability while experiencing little discoloration or molecular weight reduction during molding.

Abstract: Stabilization of poly(hydroxy acid)s, particularly poly(lactic acid), to thermal processing with selected boron compounds is disclosed. The most preferred stabilizer is boric oxide (B.sub.2 O.sub.3).

Abstract: The invention relates to a flowability improving agent comprising a combination, calculated on a dry product, of: A) 60-99% by weight of a sulphonated melamine-formaldehyde resin, a sulphonated melamine-urea-formaldehyde resin or a sulphonated naphthalene-formaldehyde resin; C) 0.5-40% by weight of a boron containing polyhydroxycarboxylic acid or a water-soluble salt of such an acid and optionally D) 0.5-30% by weight of a compound with formulaAr O--(R.sub.1).sub.n --R.sub.2where Ar is unsubstituted or substituted benzene moiety or naphthalene moiety, R.sub.1 is an oxyethylene group; --CH.sub.2 CH.sub.2 O--or an oxypropylene group; ##STR1## an oxyethylene chain or an oxypropylene chain with up to fifteen oxyethylene groups or oxypropylene groups or a combination of oxyethylene groups and oxypropylene groups to a chain where the sum of these groups is at most fifteen; the mean value n for n is 1-15 and R.sub.2 is hydrogen or a phosphonate group with the formula ##STR2## where M.sub.1 and M.sub.

Abstract: There is disclosed a thermoplastic resin composition which comprises(a) a polyphenylene ether and(b) a polyamide resin, and(c) 0.01 to 5 parts by weight of an acetal and(d) 0.01 to 5 parts by weight of a Lewis acid based on 100 parts by weight of the above (a) and (b) in total.

Abstract: The present invention provides a water-curable resin composition for use in the preparation of composite materials. The resin composition is composed of a water-reactive liquid organometallic compound having a viscosity of no greater than about 500,000 centipoise under ambient conditions; and a nonreactive organic thermoplastic polymer, having a number average molecular weight of at least about 1,000, mixed with the water-reactive liquid organometallic compound. Preferably, the water-reactive liquid organometallic compound is a compound of the formula (R.sup.1 O).sub.x MR.sup.2.sub.(y-x) wherein: each R.sup.1 is independently a substituted or unsubstituted C.sub.1 -C.sub.100 hydrocarbon group, optionally interrupted in the backbone by 1--10 nonperoxide--O--, --S--, --C(O)--, or --N-- groups; each R.sup.2 is independently selected from the group consisting of hydrogen and a substituted or unsubstituted C.sub.1 -C.sub.

Abstract: A composition for the detackification and clarification of acid and alkaline paint and lacquer waste waters and paint spray booth wastes, comprising:an inorganic-organic and/or organic adduct alloy polymer composition having the formula:A.multidot.B.sup.+ .multidot.D.sup.+wherein:A=[(SiO.sub.2 /Me.sup.I.sub.2 O).sub.u Me.sup.II.sub.m Me.sub.m.sup.III(OH) p.sup.(SO 4.sup.) y.sup.(Aci) (2m+3n)-p-2y].sub.4wherer=1 to 98% bw;u=0 to 10% bw; ##STR1## where: x=0 to 98% bw; Z is a divalent substituted or unsubstituted aliphatic, cycloaliphatic, heterocyclic or aromatic radicalD.sup.+ (PQAM).sub.wwherew=2 to 98% b.w. of polyquaternized polymer (PQAM)Me.sub.m.sup.II is selected from the divalent cationic group comprising: Mg, Zn, Ca, and Fe.sup.2+m=0 to 5Me.sub.n.sup.III is a tri-or more valent metal selected from the group comprising: Fe, Al, and Al-Zn complexes;n=1 to 20Aci is selected from the monovalent anionic group comprising Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3 --, H.sub.2 PO.sub.4 --, CH.sub.3 COO.sup.-, OH.

Abstract: A copolymeric polycarbonate containing repeating constituent units having formula [I] below and repeating constituent units having formula [II] below in a molar ratio of from 98:2 to 40:60. ##STR1## The above-described copolymeric polycarbonates have excellent resistance to chemicals, heat resistance and flame retardancy without compromising the impact resistance and good hues intrinsic to polycarbonates.

Abstract: A dental or surgical adhesive filler containing (a) a polymerizable acrylic acid or methacrylic acid derivative, (b) a vinyl polymer powder, (c) an organic boron compound as a curing agent, and optionally, a polar organic compound and an inert diluent. The advantage of the above dental or surgical adhesive filler is that it is easy to handle due to stability in curing time and freedom of ignition.

Abstract: A cationically initiated curable resin system is provided using polyester dicyclopentadiene oligomer blended with monomer having vinyl ether end groups and a cationic initiator. A process for preparing the resin system and a process of coating are also provided.

Abstract: Cyclic polyoxymethylene having a number-average molecular weight of 500 to 5,000 is obtained by solid state cyclization reaction of an alkalidegradative linear oxymethylene homopolymer in the presence of a medium containing a cationic catalyst.The cyclization is effected at 10.degree. to 150.degree. C. for 1 to 500 minutes in an organic liquid medium.The reaction mixture obtained by the cyclization is treated with an alkaline medium to hydrolyze and remove away unreacted linear polyoxymethylene homopolymer, and isolate the cyclic polyoxymethylene.The product has a sharp molecular weight distribution and is useful as a resin improver.

Abstract: Fibers may be prepregged with a dope containing polybenzoxazole or polybenzothiazole. The prepreg may be contacted with water or another nonsolvent to coagulate the polymer and form a matrix composite.

Abstract: The present invention provides an improved process for producing organic particles (e.g. toner particles) having uniform charge controlling coating and excellent charge controlling effect. In the process, a dispersion comprising the organic particles (A), a specific compound (B) forming insoluble substances upon reacting with an insolubilizer (D) and a dispersing medium is prepared and then reacted with the insolubilizer (D).

Abstract: An electroconductive resin paste suitable for bonding a semiconductor element onto a substrate and exhibiting a superior adhesion strength and processability when heated to 200.degree. C. to 350.degree. C., and a process for producing a semiconductor device using the electroconductive resin paste are provided, which electroconductive resin paste comprises.(A) a mixed epoxy resin of a phenolic novolac type epoxy resin with an epi-bis type epoxy resin,(B) a phenolic novolac resin and/or phenol aralkyl resin,(C) organic borate,(D) a diluent containing a silane compound having one glycidyl group as at least one component therein, and(E) an electroconductive metal powder.

Abstract: The flame-retardant properties of polymers with an aromatic main chain can be improved by incorporating therein a fluorine compound in combination with a boron compound.

Abstract: Use of spirocyclic boric acid esters of the general formula ##STR1## as flame retardants for plastics. R.sub.1 and R.sub.2 either independently of one another represent divalent radicals of alcohols having 2 to 6 OH groups or together represent the tetravalent radical of pentaerythritol, Z represents an N base and m represents an integer from 1 to 3.

Abstract: A powder metallurgy product delicate in shape is obtained with high efficiency in binder expulsion by using an injection molding composition including a sintering alumina powder and a binder, the binder including therein, in gravimetric ratio, 10 to 80% of a low-density polyethylene, 10 to 80% of a paraffin type wax and 5 to 35% of a boric ester, and the volumetric mixing ratio of the sintering powder to the binder is 30 to 70% of the former component to 70 to 30% of the latter component.

Abstract: This invention is a polymer containing a plurality of ketone groups in the polymer backbone and containing an amount of a non-volatile, ionizable metal salt sufficient to render it static dissipative. The polymer is substantially devoid of a fatty acid salt, a C.sub.6 -C.sub.30 carboxylic acid ester and a phosphate ester compound. The static dissipative polymer can be used neat or blended with other polymers for use in applications requiring static dissipative behavior.

Abstract: Disclosed is a composition for injection moulding which is composed of a sinterable powder comprising at least one metal or alloy and a binder. The binder contains from 10 to 80% by weight of a low-density polyethylene from 10 to 80% by weight of a paraffin wax and from 5 to 35% by weight of a boric acid ester. The ratio of the sinterable powder to the binder in the composition is from 30 to 70% by volume of the former and from 70 to 30% by volume of the latter. The binder can be removed from the green body to be prepared by injection-moulding the composition unexpectedly rapidly without interfering with the properties of the final product sintered.

Abstract: An antistatic resin composition comprising the components (1) and (2) shown below:component (1): an ethylene random copolymer having a melt flow rate of 0.1 to 50 g/10 min.

Abstract: An antistatic resin composition comprising the components (1) and (2) shown below:component (1): a propylene copolymer comprising (A) and/or (B) shown below:(A) a propylene random copolymer having a melt flow rate of 0.1 to 70 g/10 min. obtained by feeding 0.5 to 4.0% by weight of ethylene, 66.0 to 98.5% by weight of propylene and 1.0 to 30.0% by weight of an .alpha.-olefin having 4 to 12 carbon atoms (all ratios based on the total amount of the three components) into a polymerization system;(B) a propylene random copolymer having a melt flow rate of 0.1 to 70 g/10 min. obtained by feeding 2.5 to 10.0% by weight of ethylene and 90.0 to 97.

Abstract: A curable composition, in which powder of an organic or inorganic compound is added to and dispersed in a 2-cyanoacrylate and an acidic substance and a basic substance are contained as the stabilizer.In the curable composition of the invention, powder of organic or inorganic compound can be stably dispersed into the composition by the combined use of the acidic substance and the basic substance, thereby providing desired properties with ease while giving excellent storage stability and maintaining the instantaneous curing property of the composition. The curable composition can generally be used as adhesives, coating agents, paints, potting agents, etc.

Abstract: Disclosed is dispersion of a polyurethane-urea polymer in a continuous phase. This dispersion contains about 0.1 to about 5 parts by weight of an ionizable, non-volatile salt per 100 parts by weight of polyurethane-urea polymer. Polyurethane-urea coatings made from this dispersion have excellent static dissipative properties.

Abstract: A particular organic boron compound is compounded with rubber or applied to the surface of the steel cord in order to improve the resistance to corrosion fatigue of steel cord as a reinforcement for rubber articles with holding good adhesion properties to rubber.

Abstract: A process for production of corrugated board using an aqueous adhesive which contains polyvinyl alcohol and clay, or polyvinyl alcohol, clay and water-soluble boron compound, the ratio of clay to polyvinyl alcohol being in the range of 200 to 600 parts by weight based on 100 parts by weight of polyvinyl alcohol, the ratio of water-soluble boron compound being not more than 15 parts by weight based on 100 parts by weight of polyvinyl alcohol, the solid content of the adhesive being 25 to 60% by weight characterized in that(a) a polyvinyl alcohol concentration in the solution excluding solid other than polyvinyl alcohol from adhesive being in the region bounded by the following formulas:Y.gtoreq.-0.0014 X+9.4 (i)Y.ltoreq.-0.0061 X+26.3 (ii)200.ltoreq.X.ltoreq.3500 (iii)wherein Y is defined by the following formula: ##EQU1## and X is degree of polymerization of polyvinyl alcohol, (b) the viscosity of the adhesive measured by a Brookfield viscometer being from 200 to 6000 centipoises at 85.degree. C.

Abstract: Thixotropic silicone emulsions crosslinkable into elastomeric state upon removal of water therefrom, e.g., to fabricate elastomer seals for the construction industry, have a pH of from 4 to 8 and a solids content of at least 50%, and contain:(A) 100 parts of an oil-in-water emulsion of an .alpha.,.omega.-(dihydroxy)polydiorganosiloxane, and a stabilizing amount of at least one anionic or nonionic surface-active agent, or mixture thereof;(B) 1 to 15 parts of a siliceous reinforcing filler in powder form;(C) 0 to 250 parts of an inorganic filler other than the siliceous filler (B);(D) 0.01 to 2 parts of a catalytic tin compound; and(E) 0.1 to 5 parts of boric oxide, a boric acid or a borate.

Abstract: A composition suitable for use as an electrical insulation comprises a polymeric component and a water-tree retardant additive which is either an organo orthoborate of partial ester of boric acid having the formula B(OR) (OR.sup.1) (OR.sup.2) or an organo orthoborate or partial ester of boric acid with a polyhydric hydrocarbyl alcohol.

Abstract: Composition useful for molding into articles such as food containers, beverage bottles, cured structural plastics and the like comprising molding grade linear or unsaturated polyester or polycarbonate (a) containing a mono-4-acryloxystyryl or bis-4-acyloxystyryl compound or (b) having reacted therewith or copolymerized therein a styryl residue derived from a mono-4-acryloxystyryl or bis-4-acyloxystyryl compound, having the formula ##STR1## wherein R.sup.4 and R.sup.5 represent the acyl radical and the other radicals are as defined in the specification.Preferred compositions comprise a linear polyester containing a styryl residue as an integral part of the polymer chain. The styryl residues absorb ultraviolet radiation in the range of about 250 to about 390 nm. The residues are non-extractable from the polymer and stable at the conditions at which the polymers are manufactured and processed.

Abstract: A composition sufficiently irradiated to achieve sterilization comprising a polysulfone resin in admixture with an anti-yellowing upon exposure to sterilizing irradiation effective amount of a boron compound having as part of its structure at least one ##STR1## group wherein R.sup.3 is selected from monovalent hydrocarbon radicals, substituted monovalent hydrocarbon radicals, monovalent hydrocarbonoxy radicals, or halogen radicals, and R.sup.4 is selected from divalent hydrocarbon radicals or substituted divalent hydrocarbon radicals.

Abstract: An .alpha.-cyanoacrylate adhesive composition of matter consisting essentially of .alpha.-cyanoacrylate, fumed silica treated on the surface with dimethyldichlorosilane, and trialkyl borate, the trialkyl borate being expressed by the general formula B(OR).sub.3 wherein R represents any alkyl groups having carbon numbers 1 through 18. Although to this composition of matter, improved thixotropy high in stability are obtained and significant improvements are effected not only in the ineffectiveness of workability but in the restrictions on the range of work which were both problems of conventional adhesives.

Abstract: Improved heat-curable organopolysiloxane compositions, easily vulcanizable into silicone elastomers, are comprised of (A) a major amount of a diorganopolysiloxane gum, (B) a reinforcing filler therefor, (C) optionally, a diorganopolysiloxane oil, (D) an organic peroxide catalyst, and minor amounts of at least three of the following four additives: (E) an organohydrogenopolysiloxane, (F) an organofluorinated polymer, (G) an organosilonxane irgabcompound bearing at least one acroyloxyalkyl or methacroyloxyalkyl substituent covalently bonded to a silicon atom thereof, and (H) a boron compound.

Abstract: A composition sufficiently irradiated to achieve sterilization comprising an aromatic carbonate polymer in admixture with an anti-yellowing upon exposure to sterilization irradiation effective amount of a boron compound having part of its structure at least one ##STR1## group wherein R is selected from alkyl of one to twenty-four carbon atoms, inclusive, alkenyl of two to twenty-four carbon atoms, inclusive, cycloalkyl of four to fourteen carbon atoms, inclusive, aryl of six to fourteen carbon atoms, inclusive; and substituted phenyl wherein there are one to three substituents which are the same or different and are alkyl of one to six carbon atoms, inclusive, alkoxy of one to six carbon atoms, inclusive, and halo; and R' is selected from the same group as R with a further hydrogen atom replaced by a bond to the second oxygen.

Abstract: Organoboron containing starter systems having improved storage characteristics which are activated by air and which can be used to polymerize olefinic compounds, comprising a mixture of at least one organoboron compound which can be activated by air and at least one organic oligomer or polymer that is inert to the organoboron compound.

Abstract: A process for the sterilization of objects made of polymers in which the molecule contains a halogen, or of products packaged in such polymer material, the polymer containing a heat stabilizer wherein, prior to irradiation of the object or the package and its contents, there is incorporated into the polymer one or more esters carrying at least one mercaptan function in the proportion of one --SH group for 3 to 10 carbon atoms.

Abstract: An additive combination for improving the cold flow properties of distillate fuels comprises a combination of:(A) a distillate flow improver which is an ethylene containing polymer, preferably a copolymer of ethylene with unsaturated esters, e.g. vinyl acetate;(B) a hydrocarbon polymer of C.sub.2 to C.sub.30 olefin of number average molecular weight of 10.sup.3 to 10.sup.6 or derivatized version thereof, for example copolymers of ethylene and propylene, or polyisobutylene, which are used as lubricating oil V.I. improvers; and(C) a polar oil soluble compound which includes amides, salts, carboxylates, sulfonates, sulfates, phosphates, phenates and borates, having hydrocarbon solubilizing groups, for example salts and amides of polycarboxylic acid such as phthalic anhydride reacted with hydrogenated secondary tallow amine.

Abstract: There is provided a novel flame retardant system or additive which when incorporated in a polymer, such as polyphenylene ether resin compositons, produces novel flame resistant non-discolored polyphenylene ether resin compositions. The flame retardant system comprises a composition of stable halogenated organic compounds and boron containing salts or esters which are stable at 250.degree.-300.degree. C.

Abstract: Adhesives prepared by dissolving polyvinyl alcohol, a filler and a water-soluble boron compound in water are described. These adhesives are "cold-set" adhesives which are liquid at a temperature of 60.degree. C. or more, but lose their fluidity to gelatinize on cooling at a temperature higher than 20.degree. C., they are very useful for a cold corrugation system.

Abstract: The tendency to crosslink of polymer compositions comprising polymer units derived from acrylonitrile and maleic anhydride is controlled by the use of boron compounds selected from boron oxide, boron acids and esters of boron acids.

Abstract: This invention relates to the thermal stabilization of mixtures of aromatic polycarbonates and ABS polymers using 0.01 to 3% by weight, based on the total mixture, of esters of boric acid, in particular with ortho and/or para-alkyl substituted phenols or the corresponding bis-phenols.

Abstract: A water-based paste which is curable to a flowing glass which is made generally from boric acid, silica flour, or diatomite silica. Generally, silica flour is added for pipe sealer or diatomite-type silica for cap sealers. Optional additives are latex and Kelzan for modifying rheology and trisodium phosphate to fine control the softening point. These compositions may be utilized in standpipes and collecting mains in coke ovens. The softening point of the composition is selected so that it is compatible with the operation of the coke oven. Softening temperatures for these compositions range from about 400.degree. C. to about 750.degree. C. and the boric acid and silica components were selected with a particle size ranging from about 44-210 microns.

Abstract: This invention is directed to an improved rubber skim stock composition and a product containing the skim stock having improved adhesion and adhesion retention with metallic reinforcement cords such as brassed steel. The invention composition comprises a conventional vulcanizable rubber skim stock, at least one halogenated polymer and at least one organo complex of cobalt or nickel. Tests conducted with brass-plated and zinc-plated steel cords showed improved metal adhesion and metal adhesion retention with use of the improved rubber skim stock of this invention when compared to control formulations.