Abstract: A thermoplastic resin composition comprising 1 to 300 parts by weight of a copolymer (A) which is obtainable by polymerizing 0.1 to 400 parts by weight of an unsaturated epoxy monomer and 0 to 1,000 parts by weight of other copolymerizable monomer in the presence of 100 parts by weight of an ethylene-.alpha.-olefin base rubber, and 100 parts by weight of a mixture comprising 90 to 10% by weight of a polycarbonate resin (B) and 10 to 90% by weight of a saturated polyester (C), which can give a molded article having improved balance among heat resistance, chemical resistance, impact resistance and a shrinkage factor; falling ball impact resistance; weld strength; and appearance.

Abstract: A block copolymer of generally an AB, ABA, or A(BA).sub.n structure, or mixtures thereof where the A block is an unsaturated polyester, the B block is a flexible polymer having a Tg of 0.degree. C. or lower, and n is 2 to 5. The various block components are generally first separately prepared as polymers with the flexible polymer generally having 1 or 2 functional end groups such as an amine group, a carboxyl group, or a hydroxyl group with the later being preferred. Alternatively, for low molecular weight unsaturated polyester blocks, the block can be made in situ. The preferred reaction route is to react a mono or dihydroxy terminated flexible polymer with a diisocyanate which subsequently can be readily reacted with the polyester. The block copolymers can be utilized as toughening agents.

Abstract: Crosslinking agents are provided which are stable in both the solid state and in solution without undergoing uncontrolled self-crosslinking reactions. The crosslinking agents are formed by the amination of compounds having multiple ester moieties using homogeneous catalysis, and provide for formaldehyde-free crosslinking.

Abstract: Viscoelastic resins useful for forming vibration damping composites, i.e., metal layers adhered by the resins, contain only the elements hydrogen, oxygen and carbon and provide vibration damping over a wide temperature range. The resins are generally linear, high molecular weight polymers having blocks of epoxy and either polyester or polyether.

Abstract: This invention relates to materials medical or veterinary use that possess considerably improved properties with regard to friction. The invention also relates to the production of such materials from existing materials that possess suitable bulk properties, but inappropriate frictional properties. This invention also relates to a hydrophilic coating material that provides improved frictional properties.

Abstract: Water-soluble cyclic imide thione activated polyalkylene oxides having improved hydrolytic stability are disclosed. Methods of forming and conjugating the activated polyalkylene oxides with biologically active nucleophiles are also disclosed.

Abstract: The invention relates to polymer mixtures which comprise an aromatic polycarbonate, a polybutylene terephthalate and a polyalkylene glycol. Due to the presence of the polyalkylene glycol a good lacquer bonding is obtained when lacquer systems on the basis of water are used.

Abstract: Thermoplastically processable elastomeric block copolyetheresteretheramides from recurring units of the formula ##STR1## in which ##STR2## represents a polyamide segment containing terminal carboxyl groups and having an average molar mass of 700 to 10 000, --O--E--O-- is a poly-(oxytetramethylene)-segment having an average molar mass of 600 to 3 500, --NH--F--NH-- represents a poly-(oxy-1,2-propylene)-segment containing terminal amino groups and having an average molar mass of 350 to 2 500, x and y are integers from 3 to 35 and indicate the number of the respective, randomly arranged, recurring units, the ratio x:y of components A and B varying between 5:1 and 1:5.The ether amides of the present invention can optionally be mixed with additives, fillers, modifiers, or other compatible polymers normally used in the processing of polyamides and which are suitable for the production of molded articles, for example by injection molding, coinjection, extrusion, blow molding, etc.

Abstract: Block copolymers have a first copolymer block wherein lactide is the predominant component and a second copolymer block wherein trimethylene carbonate is the predominant component. The copolymers are useful in forming surgical devices, including monofilament sutures.

Abstract: Water-soluble azlactone activated polyalkylene oxides having improved hydrolytic stability and conjugates of the azlactone activated polyalkylene oxides with biologically active nucleophiles are disclosed. Methods of forming and conjugating the activated polyalkylene oxides with biologically active nucleophiles are also disclosed.

Abstract: A polymer polyol composition comprising a continuous phase, a disperse phase within the continuous phase, and a dispersant to enhance the stability of the polymer polyol is disclosed. The dispersant is a grafted polyol-polyacrylate dispersant comprised of a isocyanate vinyl monomer/ethylenically unsaturated monomer random copolymer and a polyoxyalkylene polyether, wherein the random copolymer and the polyoxyalkylene polyether are connected through at least one urethane graft site.Methods of preparing the polymer polyol composition and the grafted polyol-polyacrylate dispersant are provided. The polymer polyol compositions have low viscosities as well as high stability and may be prepared with high levels of dispersed vinyl polymer and high styrene:acrylonitrile ratios in the dispersed vinyl polymer. The polymer polyol compositions are useful for the preparation of polyurethanes, particularly polyurethane foams.

Abstract: This invention relates to a novel class of biodegradable water-soluble graft copolymers having building, anti-filming, dispersing and threshold crystal inhibiting properties comprising (a) an acid functional monomer and optionally (b) other water-soluble, monoethylenically unsaturated monomers copolymerizable with (a) grafted to a biodegradable substrate comprising polyalkylene oxides and/or polyalkoxylated materials.

Abstract: Polyesters are prepared by a new ester-insertion reaction of a polyether and a cyclic anhydride in the presence of a Lewis acid catalyst. The process is advantageously used to convert polyether polyols recovered from polyurethanes into curable unsaturated polyester resins.

Abstract: A block copolymer for use in the fabrication of bioabsorbable articles such as monofilament surgical sutures is prepared by copolymerizing one or more hard phase forming monomers and 1,4-dioxan-2-one, and then polymerizing one or more hard phase forming monomers with the dioxanone-containing copolymer.

Abstract: A resinous composition for powder coating, comprising (A) an acrylic resin and (B) a hardener, the acrylic resin being composed of (a) t-butyl methacrylate and/or t-butyl acrylate, (b) an ethylenically unsaturated monomer having a reactive functional group and (c) other ethylenically unsaturated monomer(s) than the said (a) and (b) which is (are) non-reactive with the functional group of (b), the reactive functional group content being 0.0010-0.0046 mol/g of resin, the glass transition temperature being 30-110.degree. C. and the number average molecular weight being 1,000-20,000, and the hardener having in its molecule 2 or more functional groups which are reactive with the reactive functional group possessed by the acrylic resin.The powder coating based on the present resinous composition is useful for the coating of construction material, auto-mobile and the like and is excellent in low temperature curing properties, storage stability and can result an excellent film even when used a stored powder.

Abstract: Compatibilizing agents suitable for blending otherwise immiscible polymers comprise a block or graft copolymer in which at least one of the block segments is formed by a living anionic polymerization and thereafter chemically converted to provide a polymer having at least one functional end group. The functional groups of the polymer blocks thus formed are reacted with a functionalized monomer, or an oligomer to provide a second block polymer segment. Compatibilizing agents containing more than two blocks may be formed in similar fashion. The compatibilizing agents are used to provide uniform blends of polar and non-polar polymers having superior uniformity and other physical properties.

Abstract: A copolymer comprising a bioabsorbable, segmented molecular architecture has been invented. The copolymer has at least two different ester linkages. The segmented molecular architecture comprises a plurality of fast transesterifying linkages. The fast transesterifying linkages have a segment length distribution of greater than 1.3. The segmented molecular architecture also comprises a plurality of slow transesterifying linkages. The following proviso is a material limitation to this invention: for the fast transesterifying linkages consisting essentially of glycolate linkages and the slow transesterifying linkages selected from the group consisting of trimethylene carbonate and caproate linkages, the segment length distribution of the fast transesterifying linkages is up to 2.0 and the number average segment length of the slow transesterifying linkages is greater than 2.5 linkages per segment.

Abstract: Disclosed is an alternating block copolymer composition useful for enhancing the crystallization of bisphenol-A polycarbonate which comprises the reaction product of a polyoxyalkylene polyamine and poly(ethylene)terephthalate. Also disclosed is a method of synthesizing the alternating block copolymer and a method of using the block copolymer composition in the crystallization of bisphenol-A polycarbonate.

Abstract: A method of forming a colored polymer coating on a substrate is disclosed which comprises mixing a reactive polymer, a reactive colorant, and a linking agent, and reacting the linking agent with the reactive polymer and reactive colorant under suitable conditions to form the colored polymer coating. The polymer from which the coating is formed has reactive groups which can react with the linking agent. The reactive colorant has the general formula:R-[polymeric constituent-X].sub.nwherein R is an organic dyestuff radical; the polymeric constituent is selected from polyalkylene oxides and copolymers of alkylene oxides in which the alkylene moiety of the polymeric constituent contains 2 or more carbon atoms; n is an integer from 1 to about 6; and X is a reactive moiety. The linking agent has a reactive group capable of reacting with reactive groups in the polymer and a reactive group capable of reacting with the reactive moiety of the reactive colorant.

Abstract: A block copolymer for use in the fabrication of bioabsorbable articles such as monofilament surgical sutures is prepared by copolymerizing lactide and 1,4-dioxanone, and then polymerizing glycolide with the lactide/1,4-dioxanone copolymer.

Abstract: This invention relates to mixtures of short fibers of varying lengths, diameters and aspect ratios composed of an anisotropic polymer, to compositions containing said fibers and one or more thermoplastic or thermoset resins, and to a process for forming said mixtures.

Abstract: An antifouling paint containing a copolymer including a recurring unit of the formula: ##STR1## wherein R.sup.1 is hydrogen atom, methyl or an alkoxycarbonyl, R.sup.2 is hydrogen atom or an alkoxycarbonyl, A is an acid ion-terminated pendant group, M is a transitional metal ion, L is a monobasic organic acid ion, and m is the valency of the transitional metal M; and an amount of an organic ligand capable of coordinating to the transitional metal. The ion-association and reactivity of the metal in the copolymer may be retarded by complexing with the organic ligand in situ.

Abstract: A quick-setting, moisture-curing hot-melt polyurethane composition having a first polyether-based polyurethane prepolymer having a Tg above room temperature and a second polyurethane prepolymer with a Tg below room temperature, the first prepolymer being prepared from a low molecular weight polyether; preferably the second prepolymer is also polyether based and prepared from a high molecular weight polyether.

Abstract: The invention relates to bituminous compositions containing residues of polymers and in particular sterile car waste, which have previously undergone a hydrolysis and/or alcoholysis treatment prior to their incorporation into the bitumen or asphalt. The treatment is carried out in such a way as to hydrolyze and/or alcoholyze at least 5% by weight of the polyesters and/or polyurethanes initially contained in the polymer residues.During the addition of the pretreated mixture of polymers to the bitumen or asphalt, it is preferable to add a catalyst and/or a reagent assisting the in situ condensation of the acids, alcohols, amines or isocyanates formed during the pretreatment and which react with one another or with certain constituents of the bitumen or asphalt.The process permits a better incorporation of the polymer residues containing a fraction of polyurethane, polyester and/or polyepoxide resins and consequently makes it possible to obtain improved bituminous compositions for use in roads or industry.

Abstract: A polymer such as polyester is modified with reaction with a modifier of a compound having the formula: ##STR1## in which X is halogen, Y.sub.1 and Y.sub.2 are a three- to eight-membered ring, Z is a divalent organic group and n is 1 or more.

Abstract: Impact resistant polycarbonate blends, which may be extruded without pre-drying, are prepared from an aromatic polycarbonate, an aromatic polyester, and a polyalkyleneoxide rubber, and optionally, a grafted copolymer or mixture of grafted compolymers.

Abstract: A crystalline copolymer of p-dioxanone and a poly(alkylene oxide), and absorbable surgical filaments and devices derived therefrom.

Abstract: An antistatic polymeric composition consisting of at least one antistatic additive of an ethylene oxide copolymer in the range of from about 3% to about 30% by weight and being a solid, nonionic material and having a dilution solution viscosity of greater than 0.25 g/ml and preferably having an average molecular weight greater than 20,000; and a polymeric material in the range from about 70% to about 97% by weight. The ethylene oxide copolymer comprises ethylene oxide in the range of from about 5% to about 95% by weight and at least 1 comonomer selected the group consisting of cyclic ethers, cyclic acetals, and cyclic esters, in the range of from about 95% to about 5% by weight. The polymeric material can be any thermoplastic, thermoplastic elastomer, or elastomer including ABS, ASA, polyamides, PBT, PET, PETG, PMMA, PUR, PVC, CPVC, PC, POM, POP, SMA, and SAN.

Abstract: The invention relates to water-dilutable binders for cationic electrocoating finishes. For the preparation of the binders, a di-epoxide compound, together with at least one mono-epoxide compound if desired, is converted by a polyaddition, carried out at 100.degree. to 195.degree. C. and initiated by a monofunctionally reacting initiator carrying either an alcoholic OH group, a phenolic OH group or an SH group, to form an epoxy resin which then subsequently is modified with(A) primary and/or secondary amines or their salts and/or the salt of a tertiary amine, a sulfide/acid mixture or a phosphine/acid mixture and with, if desired,(B) a polyfunctional alcohol, a polycarboxylic acid, a polysulfide or a polyphenol.

Abstract: A curing composition showing improved drying characteristics of an alkyd coating which comprises:(A) an oxyalkylene polymer having at least one silicon atom-containing group which has a hydroxyl group or a hydrolyzable group bound to a silicon atom and is capable of crosslinking by forming a siloxane bond;(B) a polymeric plasticizer and/or a viscous plasticizer; and(C) an air curing compound.

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: The invention relates to trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon-caprolactam and a method of manufacturing the same wherein 1 mole trans-cyclohexane-1,4-diisocyanate is reacted with 1 to 2 moles epsilon-coprolactam, without or with the presence of solvents. These blocked diisocyanates are used for polyurethane powders.

Abstract: Polyether active hydrogen compounds having at least two terminal active hydrogen groups on primary carbon atoms are prepared by (a) forming polyoxyalkylene molecules each having at least one active hydrogen precursor, (b) linking at least two of the polyoxyalkylene molecules, and (c) converting the active hydrogen precursor groups to active hydrogen groups on primary carbon atoms. The polyoxyalkylene molecule is formed by exposing a reaction mixture comprising at least one alkylene oxide and at least one protective initiator to conditions effective for the polymerization of the alkylene oxides. Linking is accomplished at polyether chain ends distal to the protected active hydrogen precursor groups, such that the active hydrogen precursors remain on the linked polyether chains until they are converted to active hydrogen groups.

Abstract: Novel thermoplastic elastomeric graft copolymers, formed via a cycloaddition reaction of an elastomer containing carbon-carbon double bonds with an aromatic polyether, end-capped with a 1,2-dihydroarylcyclobutenyl moiety, are described. The materials exhibit improved UV and thermal oxidative stability, attractive mechanical properties, and superior heat resistance. They are uniquely suited for impact modification of various thermoplastics such as polyesters, polyether imides, and the like.

Abstract: Impact resistant polycarbonate blends, which may be extruded without pre-drying, are prepared from an aromatic polycarbonate, an aromatic polyester, a carbon monoxide polymer and a polyalkyleneoxide rubber, and optionally, a grafted copolymer or mixture of grafted copolymers.

Abstract: A resin composition to be used as a resinous vehicle for an antifouling paint and a process for preparing the same, comprising reacting a mixture of(A) an acid group containing base resin having an acid value in the range of 25-350 mg KOH/g, selected from the group consisting of vinyl resin, polyester resin, alkyd resin and epoxy resin,(B) a metallic salt of low boiling organic basic acid having a boiling point in the range of 100.degree.-240.degree. C., the metal is selected from metals having a valence of 2 or more and a lesser ionization tendency than alkali metals, and(C) an organic monobasic acid having a boiling point of 20.degree. C. or more higher than said low boiling organic basic acid at an elevated temperature which is lower than the decomposition temperature of said metallic salt of said low boiling organic basic acid, while removing the formed low boiling organic basic acid out of the system. The subject composition provides superior antifouling coating compositions.

Abstract: Impact resistant polycarbonate blends, which may be extruded without pre-drying, are prepared from an aromatic polycarbonate, an aromatic polyester, and a polyalkyleneoxide rubber, and optionally, a grafted copolymer or mixture of grafted copolymers.

Abstract: An antithrombogenic synthetic polymer has repeat structural units represented by the following structural formula consisting of portions I and II: ##STR1## a microdomain structure composed of crystalline phases and amorphous phases, each phase having an average size of 5 to 10 nm, and a molecular weight in the range of about 10,000 to about 300,000. The polymer exhibits little adhesion of blood platelets thereto, an excellent antithrombogenic property and a sufficient mechanical strength.

Abstract: Process for the production and purification of SH-terminated prepolymers by reaction of polyhydroxy compounds with thioalkane carboxylic acids, wherein one or more adducts of ethylene oxide and/or propylene oxide with triols or tetraols corresponding to the following general formula ##STR1## in which m=1, 2 or 3,n=0, 1 or 2 andp=0 or 1,and having a molecular weight of from 400 to 10,000 are reacted with one or more thioalkane carboxylic acids corresponding to the following general formulaHS--R--COOH (II)in which R is a straight-chain or branched C.sub.1 -C.sub.

Abstract: A bioabsorbable coating for a surgical suture or ligature is disclosed. The coating is manufactured from a diblock or a triblock copolymer.

Abstract: Cohesive flexible curable adhesive coatings formed from a dispersion of first and second powdered curing components, preferably reactive at ambient temperatures, in a solution of a binder, the binder content being not more than 15%, preferably not more than 2.5% by weight of the dried composition. Also claimed are curable compositions having a specific advantageous reactive particle size distribution; specific epoxy-amine adduct curing agents; and specific polyalkylene oxide binders.

Abstract: A stable iodine complex formed from the association of iodine with a pyrrolidonyl surfactant and its use in therapeutic, environmental and industrial applications and particularly as low foaming disinfectants for gradual release of iodine over significantly extended periods.

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: 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: A method for producing a polyether-polyamide block copolymer is disclosed, comprising copolymerizing, in the presence of an anionic polymerization catalyst, a lactam and a polyether prepolymer presented by the formula: ##STR1## wherein R.sup.1 is an aliphatic hydrocarbon residual group having 2 to 6 carbon atoms, R.sup.2 is an aliphatic hydrocarbon residual group having 3 to 12 carbon atoms, and n is an integer of 4 to 450. The polyester prepolymer is prepared by reacting a polyoxyalkylene having two terminal hydroxy groups with an N-chlorocarbonyl lactam. The polyether-polyamide block according to the invention has high impact strength and is substantially colorless.

Abstract: Preparation of a macromolecular monomer of a lactone allows the preparation of copolymers of lactones with commonly available olefinically unsaturated monomers. There is no known method for the preparation of such copolymers. A cationic ring-opening polymerization of a lactone in conjunction with an unsaturated alcohol (propagator) having an acryloyl, allyl or styryl double bond, produces a polylactone macromer having an ethylenic double bond at one end and a hydroxyl group at the other. The polymerization proceeds by polyaddition of the lactone to the OH group which is the propagating species. The polylactone may include a polymeric or non-polymeric spacer. The propagator is a primary or secondary alcohol which, if cyclic may have a single internal double bond in one ring. The catalyst is an oxonium salt, or etherate of boron trifluoride. The macromer may be copolymerized with a wide variety of olefinically unsaturated monomers to form a macromer copolymer with pendant polylactone chains.

Abstract: A soil release promoting copolymer of polyethylene terephthalate and polyoxyethylene terephthalate (PET-POET) having a weight average molecular weight in the range of 15,000 to 35,000, and a PET:POET molar ratio of about 2:1 to 6:1, is prepared by reacting polyethylene terephthalate with polyethylene glycol in the presence of a catalyst system including both antimony trioxide and calcium acetate or both titanium isopropoxide and sodium isopropoxide. The PET-POET copolymer provides improved soil release properties for oily and greasy stains from polyester fabrics at high and low wash temperatures and is stable even at high alkalinity levels. The starting PET can advantageously be obtained from scrap bottles.

Abstract: A process for producing a polyamide block copolymer is disclosed, which comprises suspension polymerizing a lactam in an organic suspending medium in the presence of an anionic polymerization catalyst and a polymer activator. The polyamide block copolymer obtained has a granular or powdery form easy to handle.

Abstract: There is provided a novel product having the formula: ##STR1## where "polymer" is an amine functional polymer, such as amine terminated polyethylene imine, amine terminated polyalkylene glycols, amine terminated anilineformaldehyde, amine terminated nylons, amine functional silicones; R.sup.1, R.sup.2, and R.sup.3 are C.sub.1 -C.sub.8 monovalent hydrocarbyl radicals, m is 1 to 3 and n is 1 to 10.