Abstract: A composition of acetal resin infused with one or more polyglycols to impart an improved tribological property. The composition is produced by mixing a powdered or granulated polyoxymethylene homopolymer (or copolymer) in the range from about 75% to about 95% by weight, with from about 25 to about 5% by weight of one or more polyglycols. Examples disclosed include compositions in which the single polyglycol comprises a polyethylene glycol, an ethylene oxide-propylene glycol monobutyl ether, a diethylene glycol n-butyl ether, an ethylene oxide-propylene oxide polyglycol, and a propylene glycol monobutyl ether. Preferably, if an oil soluble polyglycol is added, either a polyethylene glycol or a propylene glycol monobutyl ether is included to serve as a compatibilizer for the oil soluble polyglycol.

Abstract: A polyacetal composition is provided for use in plastic-plastic wear applications, said composition containing about 85 to 99 weight percent polyacetal, about 0 to 5 weight percent polytetrafluoroethylene fibers, about 0.5 to 5 weight percent ethylene methyl acrylate copolymer, and about 0.5 to 5 weight percent of at least one lubricant. The compositions are particularly useful in forming shaped articles for use especially in conveyor chain applications and gear applications.

Abstract: This invention relates to improved water-based polymeric dispersions having suitability for coatings and other applications which are based upon polymers having a plurality of acetoacetate functional groups and a crosslinkable component comprising a plurality of aromatic aldimine. The basic acetoacetate/benzaldimine containing system comprises an aqueous polymeric dispersion wherein the polymer has a plurality of acetoacetate groups and an effective amount of a curing agent having a plurality of benzaldimine functional groups. The improvement in providing for water-stable polymeric dispersions suitable for coatings and other applications comprises an aqueous dispersion comprising a polymeric component preferably derived from a plurality of polymerizable ethylenically unsaturated monomer units having pendant araldimine or heterocyclic aldimine functionality. Acetoacetate containing monomers generally are used in forming the polymer and a preferred monomer acetoacetoxyethymethacrylate.

Abstract: Self-lubricating compositions with improved friction, wear and melt flow properties are provided as well as a method of improving the friction, wear and melt flow properties of a polyoxyalkylene base resin. The composition includes a mixture of a polyoxyalkylene base resin with a low density polyethylene and an aramid powder in amounts effective to provide the improved properties.

Abstract: The present invention is aimed at improving the weathering resistance of a polyoxymethylene resin without adversely affecting its excellent mechanical properties. The invention comprises incorporating into polyoxymethylene a UV absorber and/or a light stabilizer, along with a grafted copolymer containing epoxy-containing olefinic monomer units and/or a polymer containing oxazolyl groups.

Abstract: Copolymers of vinyl aromatic monomers and propoxylated allyl alcohols having an average of 2 or less oxypropylene groups are disclosed. The copolymers, which have hydroxyl numbers of 80-260 mg KOH/g and number average molecular weights from 500-3500, are particularly useful for polyurethanes, alkyd resins and coatings, melamine-based coatings, and unsaturated polyester resins.

Abstract: Moldings which have been produced by thermoplastic forming from a polypropylene molding composition which comprises polypropylene or ethylene/propylene copolymers and polyvinyl butyral of the formula ##STR1## have considerable advantages over moldings of a polypropylene molding composition without PVB, since they have a higher surface tension and can therefore be coated, printed on, written on and laminated without problems without further pretreatment of the surface.

Abstract: Polyacetal resins can selectively be reduced in terms of surface gloss by the addition of a core-shell polymer. The core-shell polymer which serves as the surface gloss reducing agent is one which has a rubbery polymer as its core, and a glassy vinyl copolymer having an oxygenic group (e.g., a hydroxyl or glycidyl group) as its shell. Preferably, the core-shell polymer is emulsion polymerized in sequential stages to form the core and shell polymers by use of an oligomeric surfactant. The core-shell polymer is most preferably present in the polyacetal compositions in an effective amount of between 1 to 50 parts by weight, based on 100 parts by weight of the polyacetal base resin.

Abstract: A plasticized polymer molding that includes a plasticizer and polyvinyl butyral is disclosed. The polyvinyl butyral includes comonomer units carrying sulfonate groups in the main polymer chain of the polyvinyl butyral. The molding is useful as intermediate films in laminated glass sheets.

Abstract: Incorporation into polyacetal of 0.01-15 weight percent of certain epoxy-containing polymer compounds, oxazolyl-containing monomer and polymer compounds, and/or styrene acrylonitrile graft polymer compounds yields polyacetal compositions having excellent tensile strength after long-term aging and also after long-term aging in grease. The compositions are useful in automotive and electrical/electronic applications.

Abstract: An azlactone-functional thermoplastic composition is disclosed. The composition is a blend of an azlactone-functional composition and a thermoplastic polymer. A method of making azlactone-functional homopolymers by bulk homopolymerization is disclosed, optionally also concurrent or sequential blending of a thermoplastic polymer. A method of blending azlactone-functional compositions and thermoplastic polymers is disclosed. Molded articles and adduct molded articles formed from the thermoplastic composition are disclosed.

Abstract: A vinyl composition tile formulation is disclosed which comprises polyvinyl chloride, inorganic fillers and from about 0.5% to about 4%, by weight of said formulation, polyvinyl butyral, as a tackifier.

Abstract: Provided are light-absorbing polymers which contain backbone unsaturations and which are produced by knoevenagel condensation and which are useful for imparting color and/or ultraviolet light screening properties to thermoplastic resins. The polymeric colorants or UV absorbers may be added during the formation of the uncolored thermoplastic polymer or melt or solution blended with other thermoplastic polymers.

Abstract: An ion exchange polymer comprised of an alkali metal or alkaline earth metal salt of a poly(carboxylic acid) in a poly(vinyl acetal) matrix is described. The polymer is made by treating a mixture made of poly(vinyl alcohol) and poly(acrylic acid) with a suitable aldehyde and an acid catalyst to cause acetalization with some cross-linking. The material is then subjected to an alkaline aqueous solution of an alkali metal salt or an alkali earth metal salt. All of the film forming and cross-linking steps can be carried out simultaneously, if desired.

Abstract: Thermoplastic molding materials containA) from 40 to 99.69% by weight of a polyoxymethylene homo- or copolymer,B) from 0.1 to 2% by weight of at least one stabilizer selected from the group consisting of benzotriazole derivatives or benzophenone derivatives or aromatic benzoate derivatives,C) from 0.1 to 2% by weight of at least one sterically hindered amino compound,D) from 0.005 to 2% by weight of a polyamide,E) from 0 to 2% by weight of an epoxy-containing compound,F) from 0 to 50% by weight of a toughened polymer andG) from 0 to 50% by weight of a fibrous or particulate filler or of a mixture thereof.

Abstract: The present invention provides an acetal resin composition comprising:(1) 100 parts by weight of an acetal resin; and(2) from 1 to 100 parts by weight of a multiphase interpolymer particle comprising at least an elastomeric phase and a rigid phase, the elastomeric phase obtained by copolymerizing:(A) from 5 to 60% by weight, based on the total weight of monomers for the elastomeric phase, of at least one compound selected from the group consisting of C.sub.1 to C.sub.6 -alkyl monoacrylate, C.sub.1 to C.sub.6 -alkyl monomethacrylate, C.sub.1 to C.sub.6 -hydroxyalkyl monoacrylate and C.sub.1 to C.sub.6 -hydroxyalkyl monomethacrylate; and(B) from 40 to 95% by weight, based on the total weight of monomers for the elastomeric phase, of at least one compound selected from the group consisting of C.sub.7 to C.sub.12 -alkyl monoacrylate and C.sub.7 to C.sub.12 -alkyl monomethacrylate.The acetal resin composition is excellent in both matte property and flexural modulus, and inhibits mold deposit in mold processing.

Abstract: Incorporation of at least one lubricant and an ethylene-based polymer of the formula E/X/Y wherein E is ethylene, X is methyl acrylate, butyl acrylate, or ethyl acrylate, and Y is glycidyl methacrylate, glycidyl acrylate, or glycidyl vinyl ether into polyacetal compositions results in compositions having good wear resistance and good melt processing thermal stability. The compositions are useful, for example, when molded into parts to be used in sliding applications, such as gears, cams, and conveyor chains.

Abstract: Incorporation of a thermoplastic polyurethane and at least one thermoplastic crystalline polymer selected from nylon 6, nylon 612, polypropylene, and polyalkylene terephthalates containing at least one ethylene copolymer into polyacetal polymer results in blends characterized as having improved toughness, or impact strength, and improved elongation over that of a comparable blend of polyacetal and at least one of said crystalline polymers alone.

Abstract: It has been found that moldings produced from polyoxymethylene have reduced gloss if an acrylic (co)polymer is incorporated into the polyoxymethylene. The polyoxymethylene modified according to the invention gives moldings having a streak-free, uniformly matt surface which generally retain the physical properties and also the inherent color of the base material.

Abstract: Emulsion copolymers, for use as urea formaldehyde resin modifiers, are formed from vinyl chloride monomers, softening monomers, and functional monomers. The copolymer when blended with formaldehyde resins and used as a binder yields improved wet and dry tensile strength and better tear resistance. These binders are particularly useful as glass mat binders for the production of roofing shingles.

Abstract: This invention relates to blends containing (a) 40-98 weight percent polyoxymethylene, (b) 1-40 weight percent thermoplastic polyurethane, and (c) 1-59 weight percent of at least one amorphous thermoplastic polymer, said blends being characterized as having better mold shrinkage than polyoxymethylene/thermoplastic polyurethane compositions and also having a useful balance of physical properties, such as stiffness, elongation, and toughness.

Abstract: A polyacetal resin composition having a volume resistivity lower than 10.sup.14 [.OMEGA..multidot.cm], which comprises (A) 100 parts by weight of a polyacetal resin and (B) 1 to 100 parts by weight of a polyether ester block copolymer which is derived from (a) a dicarboxylic acid component composed mainly of terephthalic acid, (b) a glycol component composed mainly of 1,4-butanediol and (c) a poly(ethylene oxide)glycol having a number average molecular weight of 500 to 20,000 and has a poly(ethylene oxide) dicarboxylate unit content of 20 to 95% by weight, has excellent antistatic characteristics and mechanical characteristics, and especially a high impact resistance.

Abstract: A polyacetal resin composition produced by melt-kneading polyacetal, polyfluorovinylidene and optionally, an organic lubricant at a temperature higher than the melting point of each of the polyacetal and the polyfluorovinylidene; and a molded article formed from the above polyacetal resin composition. This resin composition has excellent resistance to frictional wear and heat stability, and is useful as a material for slide parts for use in electric and electronic appliances, business machines, automobiles, and other industrial machines.

Abstract: Disclosed are an acetal copolymer composed of polyacetal units and particulate crosslinked polymer units which has a viscosity of 0.1-10 dl/g and comprises a polyacetal and a particulate crosslinked polymer other than a polyacetal which has a functional group selected from the group consisting of a hydroxyl group, a carboxyl group, an amino group, an amide group, an alkoxy group, an acid anhydride group, and an epoxy group and has an average particle size of 0.01-10 .mu.m, said polyacetal and particulate crosslinked polymer being reaction bonded to each other through the functional group and a process for producing an acetal copolymer composed of polyacetal units and polymer units other than polyacetals which comprises a polyacetal and a polymer other than a polyacetal which are reaction bonded to each other through a functional group mentioned below and which has a viscosity of 0.

Abstract: A polyoxymethylene composition useful for producing weather-resistant molded articles comprising 60-95% by weight of a polyoxymethylene, a methacrylic acid ester polymer, and a pigment, a dye or a mixture thereof. The weather-resistant molded articles obtained therefrom.

Abstract: The present invention relates to a polyacetal copolymer comprising a polyoxymethylene group (A) and a vinyl polymer group (B), the copolymer having a structure of the formula (I):A.sub.n --X--B (I)wherein X is a terminal group of B and represents a binding group derived from a compound having at least two carbon atoms and 1 to 4 groups selected from hydroxyl, carboxyl, ester, amino and alkoxy groups, and A.sub.n means that A is present in the quantity of n times in number, and bonds to X, in which n=1 to 4, and the copolymers has a number average molecular weight of 10,000 to 500,000; a process for the production of said copolymer; and a composition comprising said copolymer and a polyvinyl polymer and/or polyoxymethylene.

Abstract: A composition comprising a first component including a compound comprising at least two acetoacetate groups, and a second component including a compound comprising at least two groups which will react with an acetoacetate group, at least one of which is an aromatic aldimine group having a relatively low reactivity with water when compared with its reactivity with an acetoacetate group.The components may be premixed in water prior to application.The invention further includes a product comprising a cured blend of the two components. The product of the invention is usually a coating or film.

Abstract: A thermoplastic resin composition is here provided which comprising99 to 50% by weight of at least one of engineering plastics (A) and1 to 50% by weight of an ethylene copolymer (B) having at least one of carbon-carbon unsaturated double bonds, and1 to 200 parts by weight, based on 100 parts by weight of the resin (A)+(B), of at least one selected from the group consisting of a rubber-like elastomer (C) and/or an olefin polymer or copolymer (D).

Abstract: The present invention relates to a composition which exhibits antiozonant activity in diene containing rubbers comprising the reaction product of a multi-step process comprising:(1) reacting under condensation conditions an aldehyde and an amine containing compound to form a condensation product, whereinsaid aldehyde is selected from the group consisting of formaldehyde, acetaldehyde or mixtures thereof; andsaid amine containing compound is selected from the group consisting of:N,N'-di-substituted-p-phenylene diamines of the structural formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group of radicals consisting of alkyls having 3 to 12 carbon atoms, aryls having 6 to 12 carbon atoms and aralkyls having 7 to 12 carbon atoms; and wherein said condensation conditions include:(i) the presence of an acid catalyst,(ii) a mole ratio of aldehyde to amine containing compound ranging from about 1.

Abstract: To provide a polyacetal resin composition having a minimal molding shrinkage and capable of forming a molding having good surface conditions and being resistant to friction and abrasion by solving a problem of delamination and problems posed in molding and processing when a polystyrene resin is incorporated into a polyacetal resin in order to improve its properties.A thermoplastic polystyrene resin B is incorporated into a polyacetal resin A by using a thermoplastic acrylic resin C as the third component and a combination of components A and B each having a melt flow value satisfying a specified condition as the components A and B, said components A, B and C being used in amounts of 55 to 95 parts by weight, 43 to 3 parts by weight and 20 to 2 parts by weight, respectively, for 100 parts by weight of the sum of A, B and C.

Abstract: Reinforced polymer blends with improved mechanical properties are produced from a blend of a polyketone polymer and an uncured phenolic-based novolac resin, reinforced with glass fibers.

Abstract: A high volume amine-aldehyde initiator composition for two part acrylic adhesives is disclosed comprising a mixture of the amine-aldehyde condensate and a diluent comprising an epoxy ether, e.g. the diglycidyl ether of bisphenol A. The initiator compositions are designed for use in dispensing two part acrylic adhesives from self-proportioning twin pack cartridge dispensers at adhesive:initiator ratios of 20:1 or less, e.g. 10:1.

Abstract: Thermoplastic polymer blends comprising a monovinylidene aromatic copolymer, an acetal polymer and an elastomeric material such as a thermoplastic polyurethane or an elastomeric copolyester have good processability and a beneficial combination of physical and chemical properties including thermal/dimensional stability, impact resistance, chemical resistance and creep resistance. Said polymer blends are suitable for use in the preparation of a variety of molded utilitarian articles having good appearance and paintability.

Abstract: A cured adhesive tape composition for adhering together roofing materials such as synthetic EPDM rubber and which provides long term water tightness is provided. The adhesive composition includes substantially equal amounts by weight of a) a rubbery polymer comprising a blend of an ethylene-propylenediene terpolymer, a halogenated butyl rubber or a halogenated copolymer of p-methylstyrene and isobutylene, and polyisobutylene b) a compatible tackifier, and c) an accelerator/cure package for the rubbery polymer. The cured composition exhibits a peel strength of at least 715 grams/cm at room temperature, at least 300 grams/cm at 70.degree. C., and supports a static load of at least 300 grams at 70.degree. C.

Abstract: A process for improving the size distribution of granules formed during synthesis of polyvinyl butyral which involves delaying addition of surfactant to the reaction medium in which the polyvinyl butyral is being formed until after gel break. The surfactant is usually polyacrylic acid or a copolymer of acrylic acid with up to 20 weight percent of one or more copolymerized monomers, in an amount effective to counteract excessive agglomeration of the polyvinyl butyral granules.

Abstract: Incorporation of 0.2 to 3.0 weight percent of linear low density polyethylene into polyoxymethylene compositions results in improved elongation for such compositions.

Abstract: An adhesive composition comprising a mixture of(1) a latex having a double construction of vinylpyridine-styrene-butadiene terpolymer prepared by(A) polymerizing a monomer mixture comprising 30-60 wt % of styrene, 0.5-15 wt % of vinylpyridine and less than 60 wt % of butadiene and then(B) polymerizing a monomer mixture comprising 10-40 wt % of styrene, 5-20 wt % of vinylpyridine and 45-75 wt % of butadiene, and with the styrene content by percentage in (B) being less than that in (A) and(2) 10-30 parts on a solids basis of a thermosetting resin based on 100 parts on a solids basis of said latex (1).

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: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.

Abstract: Improved compositions comprise polymer blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with polyvinyl phenol and polyacetal.

Abstract: A composition having and exhibiting improved mechanical properties comprising of a polyacetal polymer, glass fibers, and polyvinyl phenol polymer is disclosed.

Abstract: Novel adhesive products are prepared by coating a novel adhesive formulation onto appropriate substrates. The adhesive formulation is capable of maintaining coatable viscosity at solids levels in excess of 58% and may comprise an interpolymer prepared in the presence of a high concentration of chain transfer agents, and may also comprise external and/or internal crosslinking agents. The Williams Plasticity Number of solids from the formulation may be less than 1.8 (determined in the absence of external crosslinking agents). Alkyl acrylamidoglycolate alkyl ether monomer copolymerized with a more reactive monomer provides an interpolymer having reduced need for strong acid catalysis.

Abstract: Polyacetal compositions are made by melt-blending a polyacetal base resin A, a filler material B, and a thermoplastic acrylic resin C in weight ratios which satisfy the following formulas (1) and (2):(B+C)/(A+B+C)=0.03 to 0.06 (1)C/(B+C)=0.05 to 0.95 (2).The thermoplastic acrylic resin C is most preferably selected from homopolymers of methyl methacrylate or copolymers which are mainly comprised of units derived from methyl methacrylate. The melt-blending of the polyacetal base resin A with the thermoplastic acrylic resin C is accomplished in the presence of a filler material B having a surface tension which is greater than that of the thermoplastic acrylic resin C at the melt-blending temperature. In this manner, a continuous phase of the thermoplastic acrylic resin is formed in a matrix of the polyacetal base resin such that the filler material is encapsulated in the continuous acrylic resin phase.

Abstract: Polyvinylaminals, optionally as the formed copolymer with polyvinylhemiaminals and polyvinylacetals are useful as separating agents and are provided by reacting a poly(vinylamine) or a copolymer containing vinyl alcohol and vinylamine units with a monoaldehyde. The aldehyde, such as butyraldehyde, can be introduced into the polymer aminalization as a liquid or gas, generally in a proportion of about 0.02 to 0.5 mol per mol of alcohol and amine units in the polymer chain. These polymers, especially as the cationic salt, perform very well in the flocculation, settling, clarification and dewatering of wastewater.

Abstract: This invention relates to a core-shell polymer which is useful for polyoxymethylene resin, a polyoxymethylene resin composition containing the core-shell polymer and a molded article made of the polyoxymethylene resin composition.The core-shell polymer comprises a rubbery polymer core and a glassy polymer shell and has substantially no detectable anion.This core-shell polymer makes the molded articles be improved on the impact strength, elongation at the weld line, etc. The molded articles is used as various products (such as gears, reels, etc.).

Abstract: As N-substituted maleimide polymer composition contains 20 to 90 parts by weight of an N-substituted maleimide polymer and 80 to 10 parts by weight of a thermoplastic resin selected from a polycarbonate polymer, a polysulfone polymer, a polyphenylene ether polymer, a polyarylene sulfide polymer, and a modified polymer of the polymer or polymers, a polyoxymethylene polymer, a polyester polymer, a polyamide polymer and mixtures thereof.

Abstract: A graft copolymer having a polyolefinic main chain with muconic acid groups pendant therefrom. The acid groups are bonded to the backbone of the polyolefin by free radical addition across a muconic acid double bond. Preferably, the copolymer is prepared via a reactive extrusion process. The copolymer's applications include use as a reactive compatibilizer for polymer blends. The preferred polyolefin is polypropylene.

Abstract: A miscible polymer blend comprising polyketone and phenolic-based novolac polymers is provided. These blends have and exhibit improved water vapor transport properties. A process for producing these blends and articles of manufacture produced therefrom are also disclosed.

Abstract: A crosslinker composition comprising an etherified phenol-formaldehyde resin modified by addition of a styrene (meth)-allyl alcohol copolymer is used to provide epoxy and polyester-alkoxymethylmelamine coil coating compositions of enhanced gloss, hardness, chemical resistance, adhesion and flexibility.

Abstract: A compatible polymer blend consisting essentially of:a) 0.5-99.5 wt. % of homopolymer or copolymer polyoxymethylene component, andb) 99.5-0.5 wt. % of a polymer component which comprises 40-100% of at least one monomer of formula ##STR1## in which R.sub.1 is methyl or ethyl. The blends are suitable for use as engineering plastics.