Abstract: Substantially fully imidized polyimidesiloxanes which are based on a selected pyridine compound are soluble in diglyme which gives them particular utility in the micro-electronics industry. The polymers are prepared from the dianhydride, a difunctional siloxane monomer and an organic diamine that has the formula ##STR1## wherein X is hydrogen, halogen, phenyl or combinations thereof,Z=--O--, --S--, ##STR2## >C(CX.sub.3).sub.2, --or --Y--Ar--Y--, Ar' is an aromatic radical of 6 to 10 carbon atoms, ##STR3## Y=--O--, --S--, ##STR4## >C(CX.sub.3).sub.2, or --. n=0 or 1.

Abstract: Functionalized polyphenylene ethers are prepared by reacting a polyphenylene ether with a polymerizable olefinic compound containing a phosphorus or silicon atom or an epoxy or lactam group, preferably in the presence of a free radical initiator. They may be used in the preparation of compatible polyphenylene ether blends with such polymers as polyesters and polyamides.

Abstract: A water-soluble organic polybase which is useful for the cationization of asbestos-free, cellulose fiber filter media is prepared by reacting a mixture of a compound of the formulaR.sup.2 --CO--R.sup.1 --COOHand a polyalkyleneimine with a difunctional alkylating agent, wherein R.sup.1 is a single bond or alkylene having 1 to 10 carbon atoms and R.sup.2 is inter alia a moiety of the formulaH.sub.2 N--(CH.sub.2).sub.u --NH--(CH.sub.2).sub.u --NH).sub.wwherein u is the number 2, 3, 4 or 5 and w is the number 0, 1, 2 or 3.

Abstract: Cationic crosslinkable polyamidoamine resins which are obtainable by reaction of(A) a water-soluble polyamidoamine prepared from(1) aliphatic or aromatic dicarboxylic acids or functional derivatives thereof, such as anhydrides, esters or half-esters, and .omega.-aminocarboxylic acids containing at least 3 C atoms or lactams thereof, and(2) a polyamine mixture of (.alpha.) polyamines which contain at least two amino groups which are capable of amide formation and at least one further secondary or tertiary amino group, and (.beta.) polyamines which contain only two amino groups which are capable of amide formation,(B) with an epihalogenohydrin, in a molar ratio of 0.7 to 3.5 mol of epihalogenohydrin per mol of basic nitrogen in component (A),(C) with an inorganic base and(D) with 0.2 to 9.0 mol of a halogen-free mineral or carboxylic acid, the acid being added in at least an amount to give a pH of at least 5,are used as agents for imparting wet strength to paper.

Abstract: A process for producing a support capable of reaction with antibodies or enzymes, said process comprising the steps of:(i) reacting an aliphatic polyamide with a solution consisting essentially of sulphuryl chloride and a paraffin or cycloparaffin to produce a sulphuryl chloride modified polyamide reactive intermediate product;(ii) reacting the product of step (i) with a compound that binds to said product to provide a covalent chemical link to which antibodies or enzymes may be bound.

Abstract: A high impact polyamide composition comprising at least one polyamide, at least one ethylene ionomer resin and at least one oxide or carbonate compound is specific weight proportions, wherein the polyamide has a relative viscosity of at least 3.15 in 98% sulfuric acid. The composition may further comprise an elastomeric olefin copolymer, an elastomeric styrene copolymer and/or a polyvalent alcohol. The polyamide composition has excellent mechanical strength, thermal resistance and impact strength even at weld-line portions so that it can advantageously be employed for manufacturing various shaped articles, such as automobile parts and sporting goods.

Abstract: A siloxane-amide block copolymer having an alkenyl group or a photopolymerizable organic group at both terminals thereof which is represented by formula (I): ##STR1## wherein R.sup.1 represents a reaction residual group of an epoxy compound containing an alkenyl group or a photopolymerizable organic group and/or a substitution reaction product between said reaction residual group and an organosilyl group and the other symbols are as defined in the specification. The copolymer is produced by reacting a polycondensate of a diaminosiloxane and a dicarboxylic acid dihalide with a compound containing an alkenyl group or a photopolymerizable organic group at one terminal thereof and an epoxy group at the other terminal thereof. The siloxane-amide block copolymer exhibits excellent processability and reactive curability by application of heat, light or radiation.

Abstract: Thermoplastic blends of polyamide with a resin selected from the group consisting of polycarbonate, poly(ester-carbonate), and polyarylate have improved physical properties with the incorporation therein of an epoxy functional compatibilizing agent.

Abstract: Thermoplastic, easily flowing hydrophobic polyamides obtained by incorporation of from 2 to 15% by weight, based on polyamide, of at least one monoepoxide compound corresponding to the following general formula ##STR1## in which R is a hydrocarbon radical containing at least 4 carbon atoms.

Abstract: Capped connected branch copolymers are provided comprising a core segment, branched polymer segments attached to the core segment, linear polymer segments attached to the terminals of the branched polymer segments, and cap segments, which comprise residues of an alkylene oxide containing at least 4 carbon atoms and which are attached to the free terminals of the linear polymer segments. These capped copolymers are less water-soluble than the uncapped connected branched copolymers from which they are derived, and are useful in carbonless copying systems as carriers for the color precursor microcapsules. The microcapsules can be applied to the carbonless copying sheet by dispersing the microcapsules in the capped copolymer, heating the copolymer above its transition temperature and spreading the melted copolymer over the sheet. After cooling, the copolymer forms a coherent layer on the sheet.

Abstract: A homogenous blend is formed of different water soluble polymer types, for instance of particular addition and condensation polymers, by forming one of the polymers from its monomeric starting material by polymerisation in a solution of the other polyer. The resultant solution has a concentration of above 10% but is homogenous. It can be used as a bulk solution or can be dried to powder or can be present as a reverse phase dispersion.

Abstract: Leather treatment agents contain a mixture of(a) 2-98% by weight of an adduct with a molecular weight of 500-50,000 of an alkylene oxide onto an aliphatic or aromatic compound containing one or more hydroxyl groups and(b) 98-2% by weight of a reaction product, containing carboxyl groups or salts thereof, with a molecular weight of 170-20,000 of an aliphatic, cycloaliphatic or aromatic compound containing at least two carboxyl groups or anhydrides thereof and an aliphatic or cycloaliphatic compound containing at least two hydroxyl and/or primary or secondary amino groups and, if appropiate, ether or tertiary amino groups.

Abstract: Thermoplastically polyamide moulding compositions produced from at least 70% by weight of polyamide, a long-chain polyester, polyether or hydrocarbon polyol and at most 5% by weight of a polyanhydride or polyepoxide.

Abstract: This invention is a water-resistant film for lamination to a textile material, and the flexible, laminated product produced therewith. The film has a permeability of at least 0.0008 metric perm-cm. at 20.degree. C. and 65 percent relative humidity and of at least 0.0006 metric perm-cm. at 30.degree. C. and 50 percent relative humidity. The film is formed from a block copolymer having a number average molecular weight of from about 15,000 to about 35,000. The block copolymer contains polymer segments prepared by the amination of a polyether formed by treating a polyethylene glycol with an alkylene oxide of three or more carbon atoms. The product is a laminant of a layer of the described film and a layer of a textile material, and is useful in the formation of water-resistant, moisture permeable articles such as garments, tarpaulins, tents, and the like.

Abstract: A stable, nonreactive, thermoplastic polymer blend comprising from about 10 to about 95 percent by weight of a superabsorbent, thermoplastic polymeric composition and from about 90 to about 5 percent by weight of at least one thermoplastic polymer.

Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether sulfone(C) from 0.1 to 30% by weight of a polymeric component having hydroxyl groupsand in addition(D) from 0 to 50% by weight of a rubber impact modifier and(E) from 0 to 60% by weight of reinforcing fillers.

Abstract: A superabsorbent, thermoplastic polymeric composition comprising:(A) from about 86 to about 98 percent by weight, based on the total weight of the composition, of a poly(oxyethylene) diol soft segment having a weight average molecular weight in the range of from about 5,000 to about 50,000; and(B) from about 2 to about 14 percent by weight, based on the total weight of the composition, of a hard segment which has a melting point above ambient temperature and below the temperature at which decomposition of either the composition or the soft segment takes place, is essentially insoluble in water, and phase separates from the soft segment, said hard segment being selected from the group consisting of polyurethanes, polyamides, polyesters, polyureas, and combinations thereof;wherein the soft and hard segments are covalently bound together by means of urethane, amide, ester, or secondary urea linkages or combinations thereof.

Abstract: Thermoplastic polyamide molding materials having reduced water uptake are obtained by the addition of 0.3-15% by weight, based on the polyamide, of an epoxide compound containing at least one oxirane group of general formula I ##STR1## in which R.sub.1 is hydrogen, alkyl, aralkyl or aryl, and R.sub.2 is hydrogen, alkyl, dialkyl, aryl, or a group of general formula IIR.sub.3 --X--CH.sub.2 -- (II)in which X can be oxygen, sulfur or substituted nitrogen and R.sub.3 can be a substituted or non-substituted aromatic, cycloaliphatic, araliphatic or aliphatic group which can also contain further oxirane groups and be interrupted by other groupings.Glycidyl ethers are particularly preferred epoxide compounds. The molding materials of the invention are suitable especially for use in the construction of motor vehicles, instruments, apparatus or machines.

Abstract: Polyimides or poly(amide-imides), especially those containing a polysiloxane unit are improved by heating such polymers or their polyamic acid precursors with a polyfunctional aromatic compound. The polyfunctional aromatic compound is one which contains at least two reactive groups which may be --NH.sub.2, --COOH, --OH or secondary amino groups with at least one of the reactive groups being --NH.sub.2 or --COOH.

Abstract: Epoxide-functionalized polyphenylene ethers, which may be prepared by the reaction of various acid-functionalized polyphenylene ethers with functionalized epoxides, are useful in the preparation of polyphenylene ether copolymers. These copolymers are, in turn, useful for the compatibilization of blends of polyphenylene ethers with such other polymers as polyesters and polyamides.

Abstract: Hydroxyaromatic oligomers are prepared by (I) reacting (A) an aromatic hydroxyl-containing material such as bisphenol A with (B) a cyanogen halide such as cyanogen bromide in the presence of a base such as triethylamine and (II) co-oligomerizing the cyanate-containing product from (I) with (C) a polymaleimide such as the reaction product of maleic anhydride with methylenedianiline optionally in the presence of (D) a co-oligomerization catalyst such as cobalt naphthenate. These oligomers are useful in the preparation of epoxy resins.

Abstract: Wires of poly-.epsilon.-caprolactam with a diameter of from 2 to 8 mm and a strength of from 35 to 45 cN/tex containing from 0.1 to 10% by weight, based on poly-.epsilon.-caprolactam, of titanium dioxide pigment are useful as anchoring wires in the cultivation of wine and fruit and for fences around pasture land.

Abstract: This invention describes an improved cationic wet strength resin prepared from: an epichlorohydrin-ammonia intermediate reaction product; polyalkyleneamine-amide, and epichlorohydrin. This resin is not only efficient in imparting wet strength to paper but also provides that the treated paper is easier to repulp than paper treated with conventional epoxidized polyalkyleneamine-amide.

Abstract: A product formed by reacting a polymeric polyamidoamine with a low molecular weight polyamine under reactions conditions to cause transamidation and then further reacting the transamidation product with a compound which is polyfunctional with respect to amino groups present in the transamidation product. The resultant material is useful in paper making processes as a retention and drainage aid.

Abstract: Easily flowable, impact resistant polyamide moulding composition containing from 0.5 to 10%, by weight, of polyethers preferably modified with (meth)acrylate or primary amino end groups or of polyesters preferably containing (meth)acrylate end groups.

Abstract: Solventless polymeric compositions suitable for coatings and moldings are formed by the addition reaction product of a first component comprising mono, di or polyamines, or an adduct of mono, di or polyamines with mono, di or polyfunctional acrylates and/or epoxides and a second component comprising mono, di or polyacrylates or mixtures with mono, di or polyepoxides.

Abstract: The black speck formation which occurs during the compounding and molding of admixtures of oxymethylene polymers and polyamides having a melting or softening point below that of the oxymethylene polymer can be reduced by adding the polyamide to the oxymethylene polymer as a dispersion of the polyamide in a carrier resin which is inert to the oxymethylene polymer and has a melting or softening point below that of the oxymethylene polymer. The polyamide comprises less than about 50 weight percent of the dispersion.

Abstract: Novel block copolymers containing polyetherimide and polycarbonate segments are prepared from hydroxy terminated polyetherimide oligomers, a dihydric phenol and phosgene or a phosgene precursor. The segmented block copolymers exhibit improved toughness and are useful as engineering thermoplastics, alone, or in combination with other resins.

Abstract: Materials made of polyhydroxylated or polyaminated polymers can be rendered bacteriostatic or fungistatic by treating the materials with a solution of certain N-oxiranemethane N,N,N-trialkylammonium compounds in a base, and either spin drying the treated material and storing it protected from air for at least three hours, or drying the treated material and holding it at a temperature higher than 80.degree. C.

Abstract: A novel adhesive exhibiting low outgassing upon exposure to high temperatures is disclosed. The instant adhesive comprises: (a) an epoxy resin, (b) a soluble polyimide resin, (c) a reactive solvent; and (d) an alkenylphenol crosslinker which preferably contains polyhydroxy and polyalkenyl substituents. Optionally, the adhesive may also contain a conductive material.

Abstract: Oligomeric and/or polymeric polyoxazole and polythiazole precursors can be prepared with high purity, i.e., especially without chloride, in a simple manner if an aromatic and/or heterocyclic dihydroxy, dialkoxy or diaryloxydiamino compound or a corresponding dithio compound is reacted with a dicarboxylic acid in the presence of a carbodiimide. The precursors prepared in this manner are suitable, for instance, for the manufacture of protection and insulating layers.

Abstract: Disclosed are novel wet strength resins for paper, said resins being derived by reacting an epihalohydrin, such as epichlorohydrin, with a polyamino-copolyamide derived by reacting methylbisaminopropylamine with (a) a diester of oxalic acid and (b) a diester of a saturated dicarboxylic acid containing at least 4 carbon atoms, the mole ratio of (a) to (b) being from about 0.25:1 to about 10:1.

Abstract: Polymers of caprolactam, having high impact strength, obtained by means of anionic polymerization, containing a rubbery phase distributed homogeneously inside the polymer consisting of alternating copolyesteramides with elastomeric properties, and a related production process, comprising dissolving or swelling the elastomeric phase in monomer caprolactam, and submitting the mixture to a polymerization at temperatures variable within the range of from 120.degree. C. to 180.degree. C., in the presence of a basic initiator, and of an activator.

Abstract: A polymer composition is disclosed. The polymer is comprised of a polymer (A) having a sulfo and/or carboxy ammonium zwitterion structure and an organic synthetic polymer (B), wherein either of the following condition (i) or (ii) is satisfied: (i) (A) is a polymer having 0 to 80% by weight of the polyalkylene oxide component, and (ii) (A) is a copolymer having 80% by weight or more of the polyalkylene oxide component and (B) is a polymer comprising polyalkylene oxide as a copolymer component. The polymer composition can be used in the production of fibers, films and other shaped articles. The products utilizing the disclosed polymer composition have excellent hydrophilic properties which are maintained even after exposure to numerous washings.

Abstract: Adhesive compositions are disclosed which comprise: (a) an epoxy resin; (b) a soluble polyimide resin; and (c) a monoepoxy diluent. Such compositions are curable by using conventional epoxy curing agent(s). If desired, conductive adhesives of this type can be formed by blending the composition with a conductive filler component.

Abstract: Solventless polymeric compositions suitable for coatings and moldings are formed by the addition reaction product of a first component comprising mono, di or polyamines, or an adduct of mono, di or polyamines with mono, di or polyfunctional acrylates and/or epoxides and a second component comprising mono, di or polyacrylates or mixtures with mono, di or polyepoxides.

Abstract: Oxyalkylated polyamidoamines are obtained by reacting a polyamine with caprolactam and oxyalkylating the product with alkylene oxides, and are used for rapidly dewatering crude oil.

Abstract: Polyamide fibers are disclosed, said fibers comprising, as a distinct phase, from about 0.4 to about 10 weight percent, based upon weight of polyamide, of an additive mixture consisting essentially of(a) from 75 to 95 percent by weight of a low molecular weight poly(alkylene ether) component having an average molecular weight from about 1000 to about 6000; and(b) from 25 to 5 percent by weight of a high molecular weight poly(alkylene ether) component having an average molecular weight from about 70,000 to about 1,000,000.

Abstract: Properties of room temperatures cured epoxy resin coatings are improved by hydrolyzing at least a portion of the epoxy groups.

Abstract: A resin composition comprising (A) a polyphenylene sulfide, (B) an epoxy compound, and as an optional component, a reinforcing material, a filler and/or a fire retardant.

Abstract: Disclosed are novel wet strength resins for paper. The resins are produced by reacting an epihalohydrin, such as epichlorohydrin, with an aminopolyamide-polyureylene intermediate derived by reacting methylbisaminopropylamine with oxalic acid or a diester of oxalic acid and with urea.

Abstract: Disclosed are novel wet strength resins for paper. The resins are produced by reacting an epihalohydrin, such as epichlorohydrin, with a polyaminopolyamide derived by reacting methylbisaminopropylamine with oxalic acid or mixture containing oxalic acid and one or more different saturated dicarboxylic acids or their esters.

Abstract: Certain poly[hexamethylene adipamide]-poly[poly-(oxyethylene) adipamide] copolymers which provide soil release to nylon fabrics can be applied from solution directly to a threadline without heat-setting. Aqueous alcoholic solutions of the copolymers are preferred for such application.

Abstract: A polyamide co-polymer polyol made by the reaction of a dicarboxylic acid diester with a diamine in the presence of a polyether polyol is described. The nylon formed should be present in the polyol in an amount of from 1 to 30 wt. %. The polyether polyol may have a molecular weight of about 2,000 to 8,000. This polyamide co-polymer polyol may be used in the manufacture of elastomers and flexible polyurethane foams which are characterized by good load bearing properties.

Abstract: Water-soluble, nitrogen-containing condensates are prepared by reacting a cross-linking agent, obtained by(a) condensing 1 mole of a dicarboxylic acid of 4 to 10 carbon atoms with from 1 to 2 moles of a polyalkylenepolyamine, having 3-10 basic nitrogen atoms in the molecule, to give a polyamidoamine and(b) reacting the polyamidoamine with epichlorohydrin and/or dichlorohydrin in aqueous solution at a pH of from 4.5 to 8.5 and at below 100.degree. C., from 1 to 130 parts by weight of epichlorohydrin and/or dichlorohydrin being employed per 100 parts by weight of the polyamidoamine from (a),with ammonia, a primary amine, a polyamine containing 2 to 4 N atoms, a polyether-amine or a polyamidoamine in aqueous solution at below 100.degree. C.The condensates are used as retention aids, flocculants and drainage aids in papermaking.

Abstract: A paper coating composition is described, containing a pigment and an aqueous binder as major components, and further containing a thermosetting resin in aqueous solution, obtained by reacting or mixing (Y) a water-soluble resin obtained by reacting urea, polyalkylenepolyamine, and dibasic carboxylic acid and reacting the resulting polyamidopolyurea with formaldehyde, (a) at least one alkylenediamine or polyalkylenepolyamine, and (b) epihalohydrin, or the reaction product between (Y) and (b) with (a).

Abstract: Disclosed is a method for sizing paper wherein the sizing agent employed is a hydrophobic cellulose reactive sizing agent such as a ketene dimer sizing agent. There is employed in combination with the sizing agent a novel sizing accelerator. Disclosed also is a novel sizing composition comprised of the sizing agent and the accelerator, the accelerator being a water-soluble nitrogen-containing reaction product of (1) a water-soluble polyaminopolyamide, such as that derived by reaction of adipic acid and diethylene-triamine; (2) an epihalohydrin, such as epichlorohydrin; and (3) a composition comprising, by weight, from about 20% to about 65% bis(hexamethylene)triamine, said composition being the residue obtained after recovery of hexamethylenediamine from its manufacture by hydrogenation of adiponitrile.

Abstract: Nylon compositions are prepared by anionic polymerization of at least 75% of a lactam with up to about 25% of an epoxy component in the presence of a basic catalyst and a promoter that can be used in lactam polymerization wherein, in a preferred embodiment, the epoxy component is a modified epoxy resin containing physical property enhancing constituents. The nylon compositions are prepared by mixing a fraction of a lactam with the epoxy component and the promotor to form liquid mixture A, mixing remaining lactam with the catalyst to form liquid mixture B, mixing liquid mixtures A and B in the ratio ranging from 1/1 to 4/1 to form liquid mixture C, injecting liquid mixture C into a mold maintained at a temperature of about 100.degree. to 200.degree. C. wherein a chemical reaction takes place whereby the liquid is converted to a solidified mass in less than about 2 minutes, and removing the nylon composition in the form of a molded object.

Abstract: The invention relates to oligomeric and/or polymeric precursor stages of polyoxazoles, as well as to a method for the preparation of these precursor stages. New radiation-reactive polymer precursor stages are provided comprised of addition products of olefinically unsaturated monoepoxides on hydroxyl group-containing polycondensation products of aromatic and/or heterocyclic dihydroxy diamino compounds with dicarboxylic-acid chlorides or esters. The radiation-reactive precursor stages according to the invention are suitable, for example, for the preparation of highly heat-resistant relief structures and as coatings for the optical fibers of light waveguides.

Abstract: The present invention relates to oligomeric and/or polymeric precursor stages of polyimidazoles and polyimidazopyrrolones, as well as to a method for preparing these new precursor stages. The invention provides addition products of olefinically unsaturated monoepoxides on amino group-containing polycondensation products of aromatic and/or heterocyclic tetraamino compounds with dicarboxylic-acid chlorides or esters or on amino group-containing polyaddition products of the tetraamino compounds and tetracarboxylic-acid dianhydrides. The radiation-reactive precursor stages according to the invention are suited, for example, for the preparation of highly heat-resistant relief structures.