Abstract: Process for the preparation of plastoelastomeric preparations comprising an elastomeric phase of an EPDM elastomer and a plastomeric phase of a thermoplastic olefinic polymer, wherein the elastomeric phase is dynamically vulcanized with a vulcanizing binary agent consisting of an alkylphenol-formaldehydic resin and sodium bisulphite.

Abstract: A pressure-sensitive adhesive comprises a moisture-curable polymer comprising a polymer prepared by polymerization of at least one .alpha.-olefin monomer, said polymer containing hydrolyzable or condensable silyl groups and having a weight average molecular weight of at least 30,000. The pressure-sensitive adhesive can be hot-melt coated without emitting volatiles and then can adhere aggressively to both polar and nonpolar substrates. The PSA has good internal strength at high temperatures.

Abstract: What is provided herein is a stabilized aqueous solution of a C.sub.1 -C.sub.5 alkyl vinyl ether and maleic acid copolymer which includes about 10-500 ppm of an inorganic reducing agent as a stabilizing additive, said reducing agent being effective to prevent oxygen from the air and peroxides contained in polymer system from degrading the copolymer. Preferably the reducing agent is sulfur dioxide and salts derived from sulfur dioxide and alkali metals such as, sodium or potassium bisulfite, sodium or potassium metabisulfite, sodium or potassium thiosulfite, or sodium or potassium sulfite.

Abstract: Disclosed is a composition comprising(A) a chlorinated polyolefin,(B) a cationic surfactant,(C) glacial acetic acid,(D) a salt of an oxyacid of sulfur, and(E) water.

Abstract: The invention provides a process for readily preparing polymeric solid electrolyte, i.e., ion conductive polymer having excellent properties.The process of the invention comprises steps of subjecting at least one of the following component A and component B to contain an alkali metal salt and/or an ammonium salt and mixing the components A and the component B.Component A: a solution obtained by dissolving a radical polymerization promotor in a specific polyether base macromonomer.Component B: a solution obtained by dissolving a radical polymerization initiator in a specific polyether base oligomer and/or an organic non-aqueous solvent.To at least one of the component A and component B, a radical polymerization retarder is added, if desired.The process of the invention can be carried out by a simple step comprised of mixing the two components at room temperature and provides the solid polyelectrolyte having a high inonic conductivity.

Abstract: Polymeric-containing compositions having improved oxidative stability have the polymer and at least two stabilizing agents. These agents are selected from low temperature antioxidants such as alkali metal and alkaline earth metal hypo or hydrogen phosphites, high temperature antioxidants such as: alkali metal or alkaline earth metal phenylphosphonates, thioethers like dialkyl thioalkylionate and polymers thereof and metal deactivating agents like polydentate ligands and ethylene diamine-tetracidic acid compounds. The composition can be a coating composition for substrates including those like fibrous material including fibers, bundles of fibers, strands, roving, flakes and beads. The composition can be present as a dried residue on the substrate. For fibrous substrates, the composition also has at least one organofunctional silane coupling agent, may also have processing aids such as epoxy polyester polymers and/or lubricants.

Abstract: This invention relates to a process for producing a quality-improved water-absorbent polymer in which the aqueous liquid (I), which is obtained by mixing in an aqueous medium at least one kind of a water-soluble salt (A) selected from a group of halogenated compounds, sulfates, acetates, and nitrates, which are derived from at least one kind of a polyvalent metal selected from a group of aluminum, calcium, and magnesium, with at least one kind of a water-soluble salt (B) selected from a group of monovalent metal salts and ammonium salts, which are derived from at least one kind of an oxyacid selected from a group of sulfurous acid and thiosulfuric acid, is mixed with a water-absorbent polymer (II) in a proportion of that the water-soluble salt of the polyvalent metal (A) is in a range of 0.1.about.10 parts by weight against 100 parts by weight of the water-absorbent polymer (II) and the water-soluble salt of the oxyacid (B) is in a range of 0. 1.about.

Abstract: The present invention relates to a conductive material and a process for producing said conductive material. More particularly, the present invention relates to a conductive material comprising (a) a substrate obtained from a polycarbodiimide resin and (b) a dopant, which is superior in oxidation resistance, mechanical strengths and flexibility, and useful as a material for electronic field, as well as to a process for producing said conductive material.

Abstract: An ablative-type protective material is provided comprising:(a) a polymeric compound comprising a plurality of at least a first repeat unit having the form ##STR1## wherein the first repeat unit is present in an amount ranging from about 70 to about 100 mole percent, inclusive and(b) an aluminum sulfate hydrate of the general formulaAl.sub.2 (SO.sub.4).sub.3.nH.sub.2 Owherein n is an integer from 14 through 18, inclusive and wherein the aluminum sulfate hydrate is present in an amount greater than about 50% by weight of the ablative-type protective material.The resulting composition exhibits an improved resistance to oxidative degeneration as well as improved heat and flame protection times.

Abstract: The tendency of poly(arylene sulfide) resin to cause mold corrosion upon molding is inhibited by mixing, prior to said molding, the poly(arylene sulfide) resin and lithium sulfite alone, or a combination of lithium sulfite and alkali earth metal carbonates, alkali metal or alkaline earth metal borates, or mixtures thereof.

Abstract: A water-absorbent resin composition having superior gel stability which comprises a water-absorbent resin, at least one oxygen-containing reducing inorganic salt and, optionally, at least one organic antioxidant.

Abstract: The invention relates to polymer mixtures which comprise an aromatic polycarbonate and an aromatic polyester. The polymer mixtures are stabilized by the addition of a sulphurous compound.

Abstract: An improved fluoropolymer composition for insulating wires or jacketing cables comprising a blend of fluoropolymer and an additive selected from the class consisting of zinc borate, ZnCO.sub.3, ZnCrO4, ZnMoO.sub.4, Zn.sub.3 (PO.sub.4).sub.2, ZnSiO.sub.4, ZnSO.sub.4, ZnTiO.sub.3, ZnZrO.sub.4, zinc ammonium sulfate, zinc acetyl acetonate, zinc formate, zinc oxalate, BiBO.sub.3, alumina trihydrate, mixtures of molybdenum and tin oxides, molybdenum trioxide, antimony trioxide, and pyrogenic silica. A preferred additive is zinc borate. This composition provides for wire insulation and cable jackets which have improved flame and smoke resistance with federal safety and Underwriters Laboratories standards.

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: The tendency of poly(arylene sulfide) resin to cause mold corrosion upon molding is inhibited by mixing, prior to said molding, the poly(arylene sulfide) resin and lithium sulfite alone, or a combination of lithium sulfite and alkali or alkaline earth metal carbonates, alkali metal or alkaline earth metal borates, or mixtures thereof.

Abstract: Various acrylic acid allyl/thiourea polymers and their use as depressants in the beneficiation of sulfide minerals from ores are disclosed.

Abstract: A thiophene derivative polymer comprising repeating units of the formula: ##STR1## (wherein R stands for one member selected from the group consisting of ##STR2## and a polymer composition having the polymer doped with an anion and consequently possessing a semiconducting characteristic.

Abstract: A water-absorbent resin composition having superior gel stability which comprises a water-absorbent resin, at least one oxygen-containing reducing inorganic salt and, optionally, at least one organic antioxidant.

Abstract: Chlorine-containing polymer containing (a) at least one compound of the formula I ##STR1## in which R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, phenyl or phenyl which is substituted by C.sub.1 -C.sub.4 -alkyl or halogen, n is 1 or 2 and, if n is 1, R is C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkyl which is substituted by --OH or --SH, C.sub.2 -C.sub.20 -alkyl which is interrupted by ##STR2## phenyl, phenyl which is substituted by C.sub.1 -C.sub.4 -alkyl, benzyl, benzyl which is substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl or --NR.sup.2 R.sup.3 in which R.sup.2 and R.sup.3 are identical or different and are as defined for R.sup.1, and, if n is 2, R is a direct bond, C.sub.1 -C.sub.10 -alkylene, C.sub.1 -C.sub.10 -alkylene which is substituted by phenyl, benzyl, --OH, C.sub.1 14 C.sub.4 -alkoxy, C.sub.1 -C.sub.20 -acyloxy, phenylsulfonyl or C.sub.1 -C.sub.4 -alkylsulfonyl or C.sub.2 -C.sub.10 -alkylene which is interrupted by ##STR3## in which R.sup.

Abstract: In the proposed pulverulent aminoplast adhesive resin for wood-base materials having a low formaldehyde emission, the resin is a mixture of(a) from 40 to 90 parts by weight of a urea/formaldehyde resin having a molar ratio of urea to formaldehyde of from 1:1.4 to 1:2,(b) from 2 to 20 parts by weight of melamine, some or all of which may have been reacted with the urea/formaldehyde resin component,(c) from 2 to 20 parts by weight of urea and(d) if required, from 0.1 to 10 parts by weight of an agent for increasing the shelf life,together with not more than 10 parts by weight of water and, if required, not more than 10 parts by weight of other additives, the numbers of parts by weight of the components summing to 100.In the process for the preparation of the pulverulent aminoplast adhesive resin, powdered melamine is stirred into a solution of the urea/formaldehyde resin, urea is added and the solution is spray dried.

Abstract: In a proposed aminoplast adhesive resin powder for wood-based materials, which eliminates little formaldehyde, the resin is a mixture of(a) from 40 to 75 parts by weight of a urea/formaldehyde resin having a molar ratio of urea to formaldehyde of from 1:1.4 to 1:2,(b) from 10 to 20 parts by weight of a melamine/formaldehyde resin having a molar ratio of melamine to formaldehyde of from 1:1.3 to 1:3,(c) from 15 to 25 parts by weight of milled urea and(d) from 0.3 to 5 parts by weight of a flow improver, as well as up to 10 parts by weight of water and, if required, up to 10 parts by weight of other additives, the number of parts by weight of the components summing to 100.

Abstract: Tractable doped electroactive polymers, comprising recurring units of a 3,3'-N,N'-disubstituted-6,6'-bicarbazole-1,3,4-oxadiazole-2,5-diyl ring system, and a sufficient concentration of a charge-compensating ionic dopant associated therewith.

Abstract: A composition for use in preventing the formation of ice comprising:(A) organopolysiloxane resin represented by the structural unit ##STR1## wherein R represents hydrogen atom or monovalent organic group attached to the silicon atom by a carbon-to-silicon bond, R' represents hydrogen atom, C.sub.1 to C.sub.20 alkyl group, aryl group, oxime residue, n and m are each 0 or an integer of up to 4, and n plus m is 0 or an integer of less than 4, and(B) alkali metal compound represented by the formulaMa.sym.X.crclbar.wherein M represents alkali metal selected from Li, Na and K, X represents inorganic or organic acid group or hydroxyl group and a is an integer of 1 to 4.

Abstract: Synthetic rubber dispersions containing carboxyl groups, free from specks and with little tendency to foaming, with advantages for their technical application contain a copolymer of 0.3 to 1.0 parts by weight of itaconic acid and 99.0 to 99.7 parts by weight of a mixture of 10 to 90 parts by weight of one or more acyclic conjugated dienes having 4 to 9 carbon atoms and 10 to 90 parts by weight of one or more aryl vinyl monomers having 8 to 12 carbon atoms and/or (meth)acrylonitrile, in which the quantity of (meth)acrylonitrile is at most 50 parts by weight and wherein up to 25 parts by weight of the non-dissociating monomers may optionally be replaced by one or more other non-dissociating copolymerizable monomers, which dispersions are stabilized with 0.05 to 0.5% by weight, based on the copolymer, of an anionic emulsifier.

Abstract: An easily dispersible polymer composition which comprises a powder of a water soluble polymer having floculating property and a sodium sulfate hydrate, and optionally a magnesium sulfate hydrate and a hydroscopic agent and which shows a high degree of granularity and free-fluidity.

Abstract: Flame retardant polycarbonate compositions are prepared from dihydric aromatic compounds and alkali metal hydrogen sulfite. These compositions are more effective than similar compositions containing alkali metal sulfites.

Abstract: Shelf stability of hydroxyl terminated liquid polymers is vastly improved by mixing a strong inorganic or organic acid, therewith in order to adjust acid number thereof up to about 12. Amount of the acid used is less than 1% by weight of the liquid polymer.