Abstract: Microcapsules comprise a polymeric wall material and a polymeric core material which is suitable as a leveling agent for film formation by film-forming oligomers and polymers.

Abstract: A hydrogenated block copolymer or hydrogenated block copolymer mixture consisting essentially of (a) hydrogenation product of a star-branched block copolymer represented by the structural formula (A-B).sub.n X wherein A is a polybutadiene block having a 1,2-vinyl content of less than 25% by weight and B is a copolymer block containing 50% by weight or more of a conjugated diene compound whose vinyl content is 25% by weight or more, X is a coupling agent residue and n is an integer of 3 or more, and (b) a hydrogenation product of a straight chain block copolymer represented by the structural formula A-B wherein A and B are as defined above, the weight ratio of the component (a) to the component (b) being 100/0 to 5/95, and a hydrogenated block copolymer composition comprising (I) 1 to 99 parts by weight of said hydrogenated block copolymer or hydrogenated block copolymer mixture and (II) 99 to 1 part by weight of a thermoplastic resin and/or a rubbery polymer.

Abstract: An ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer [A-I] which has a density, a melt flow rate (MFR), an amount of a n-decane-soluble portion in the specific ranges and whose melt tension (MT) at 190.degree. C. and MFR satisfy the relation MT>2.2.times.MFR.sup.-0.84 and one (co)polymer selected from the group consisting of [B-1] a low-density polyethylene obtained by high-pressure radical polymerization, [B-2] a crystalline polyolefin and [B-3] an olefin type elastomer. Also disclosed is an ethylene copolymer composition comprising an ethylene/.alpha.-olefin copolymer composition and the low-density polyethylene [B-1] obtained by high-pressure radical polymerization, said ethylene/.alpha.-olefin copolymer composition comprising ethylene/.alpha.-olefin copolymers [A-2] and [A-3] both having physical properties similar to those of the above ethylene/.alpha.-olefin copolymer [A-1] and having intrinsic viscosities different from each other.

Abstract: The invention relates to a soft thermoplastic elastomeric composition having improved resistance to oil swell and compression set comprising a blend of an engineering thermoplastic resin, a cured rubber concentrate and optionally a compatibilizer and a method for its preparation. The invention further relates to the cured rubber concentrate, a method for its preparation and the use thereof.

Abstract: A resin composition for extrusion molding which has a melt flow rate (MFR) of from 0.5 to 30 g/10 min., having (A) 1 to 80 parts by weight of an ethylenic polymer which gives an endothermic peak in a temperature range of from 80.degree. to 120.degree. C. in a temperature rise thermogram as measured by a differential scanning calorimeter, has a melt flow rate (MFR) of from 0.5 to 50 g/10 min., and is prepared by high-pressure radical polymerization, (B) 5 to 80 parts by weight of a copolymer of ethylene and an .alpha.-olefine containing 3 to 12 carbon atoms which gives at least one endothermic peak in a temperature range of from 110.degree. to 130.degree. C. in the temperature rise thermogram as described above, has a melt flow rate (MFR) of from 0.5 to 30 g/10 min. and a density of from 0.900 to 0.935 g/cm.sup.3 and (C) 5 to 70 parts by weight of the copolymer of ethylene and an .alpha.-olefin containing 3 to 12 carbon atoms which has a melt flow rate (MFR) of from 0.5 to 30 g/10 min. and a density of from 0.

Abstract: Extended flexible life laminates such as credit cards have at least one core layer and generally on each side thereof at least one overlayer. The core layer composition comprises polyvinyl chloride, a copolymer derived from vinyl chloride and vinyl ester monomers, at least one acrylic resin polymer, as well as a copolymer derived from ethylene and vinyl acetate monomers. Desirably, at least one side of the core layer is corona treated in order to improve ink adhesion thereto. The overlay composition is similar but generally is transparent. After the core layer and the overlayers are laminated together, the credit card can be embossed with pertinent information such as name, expiration date, credit card number, and the like. The laminated credit card can optionally but desirably contain a magnetic strip on the overlayer or a microchip therein. The laminates of the present invention generally have increased flex life, improved ultra violet light resistance, and low melting points.

Abstract: An ethylene polymer extrusion composition having high draw down and substantially reduced neck-in, a process for making such a composition and a process of using such a composition to prepare extrusion coatings, extrusion profiles and extrusion cast films are disclosed. The ethylene polymer extrusion composition is made of 75-95 weight percent of at least one ethylene .alpha.-olefin interpolymer and 5-25 weight percent of at least one high pressure ethylene polymer characterized as having high melt strength and a broad, bimodal molecular weight distribution. In profiles, coatings or films, the composition can be used as sealant, adhesive or abuse resistance layers.

Abstract: A conductive polymer composition containing a particulate conductive filler dispersed in a polymeric component. The polymeric component comprises a first polymer which (i) is present in an amount 25 to 75% by weight of the total polymeric component, and (ii) is polyethylene, and a second polymer which (i) is present in an amount 25 to 75% by weight of the total polymeric component, and (ii) comprises units derived from a first monomer which is ethylene and a second monomer which is an alkyl acrylate having the formula --CH.sub.2 .dbd.CHCOOC.sub.m H.sub.2m+1 --, where m is at least 4. The resulting composition is useful in preparing electrical devices, e.g. circuit protection devices, which have lower resistivities, higher PTC anomalies, and better thermal and electrical stability than devices comprising conventional conductive polymer compositions.

Abstract: A conductive polymer composition containing a particulate conductive filler dispersed in a polymeric component. The polymeric component comprises a first polymer which (i) is present in an amount 25 to 75% by weight of the total polymeric component, and (ii) is polyethylene, and a second polymer which (i) is present in an amount 25 to 75% by weight of the total polymeric component, and (ii) comprises units derived from a first monomer which is ethylene and a second monomer which is an alkyl acrylate having the formula --CH.sub.2 .dbd.CHCOOC.sub.m H.sub.2m+1, where m is at least 4. The resulting composition is useful in preparing electrical devices, e.g. circuit protection devices, which have lower resistivities, higher PTC anomalies, and better thermal and electrical stability than devices comprising conventional conductive polymer compositions.

Abstract: A light scattering light guide, which is capable of converting a light flux of a relatively small cross-sectional area into a light flux of a relatively large area with high efficiency and uniformity, manufacturing method thereof, and applied optical apparatuses such as backlight light source apparatuses and light branching/mixing devices which make effective use of the characteristics of said light scattering light guide. Such light scattering light guide is obtained by utilizing various structures with irregular refraction indexes generated in the process of polymerization of organic materials.

Abstract: A coextruded film suitable for packaging a flowable material, particularly milk, in a form, fill and seal machine comprises a core layer of a blend of high density polyethylene and linear low density polyethylene and skin layers of a blend of linear low density polyethylene and ethylene-methyl acrylate copolymer.

Abstract: A composition is disclosed which comprises a copolymer of ethylene and alkyl acrylate having improved melt-point temperature and/or improved adhesiveness to polymeric substrates. A process for making these compositions is also disclosed. In addition, an ionomer made from the copolymer and a method for making the ionomer are disclosed.

Abstract: Polymer blends of at least one polar polymer are prepared by admixture with a poly(vinyl alcohol) and a (meth)acrylate copolymer also containing vinyl amide and/or unsaturated acid units. The ternary compositions have attractive processing and performance properties.

Abstract: A laminated sheet suitable for high-frequency welding comprises a vinylidene fluoride resin layer (A), a bonding layer (B) consisting of a blend of vinylidene fluoride resin and a copolymer resin consisting of methyl methacrylate and alkyl ester of acrylate, whose alkyl group has 3-5 carbon atoms, a base-material layer (C) of vinyl chloride resin bonded to the bonding layer (B), and a base-cloth layer (D) bonded to the base-material layer (C). A bonded laminated sheet obtained by bonding two laminated sheets with high-frequency welding and the application of the bonded laminated sheet to tents are also disclosed.

Abstract: A chloroprene polymer composition containing an .alpha.,.beta.-unsaturated carboxylate polymer having a number average molecular weight of at least 300,000.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Polyolefins, polyolefin blends and elastomer-modified polyolefins containing additives to increase the surface polarity are prepared. They contain AB block copolymers as additives. A method for preparation of polyolefins, polyolefin blends and elastomer-modified polyolefins with a polar surface is defined as well as the method of preparing the polyolefins articles.

Abstract: A polyalkylmethacrylate co-polymer of polyhydroxystyrene has been found to be an ideal blending partner in a novolak photoresist composition. The preferred co-polymer is poly(p-hydroxystyrene)-co-(methyl methacrylate). The co-polymer is fully miscible with novolaks and has a high thermal stability (>150.degree. C.).

Abstract: An at least monoaxially stretched polypropylene film made of a composition comprising a crystalline polypropylene and a monocyclic olefin polymer (e.g. a polycyclobutene or a polycyclopentene), wherein the content of the monocyclic olefin polymer is 0.1-1,000 ppm by weight.The polypropylene film is superior not only in transparency but also in image clarity by which an image is clearly seen through the film.The polypropylene film, when further comprising talc having an average particle diameter of 0.1-10 .mu.m in an amount of 50-4,000 ppm by weight, can prevent the surface roughening or edge roughening of sheet during the sheet formation conducted before stretched film production.The polypropylene film, when further comprising an anti-blocking agent and a polyethylene together, can prevent the generation of voids caused by the anti-blocking agent.

Abstract: A thermoplastic resin composition comprising (A) 100 parts by weight of a diene rubber-containing styrene resin, (B) from 1 to 50 parts by weight of a vinyl resin-containing acrylic rubber polymer obtained by polymerizing from 1 to 200 parts by weight of at least one vinyl monomer in the presence of 100 parts by weight of an acrylic rubber polymer, and (C) from 0 to 48 parts by weight of a polymer of a vinyl monomer having a weight average molecular weight of at least 200,000, provided that the sum of components (B) and (C) is from 1 to 60 parts by weight.

Abstract: Disperse dyeable compositions of ethylene alkyl acrylate grafted onto polypropylene are provided. A process for disperse dyeing polypropylene fibers is provided. This process comprises (a) extruding the polypropylene with about 2 to 10% by weight of a thermoplastic copolymer of ethylene and alkyl acrylates having one to four carbon atoms in the alkyl group into fibers, and (b) exposing the fibers to a disperse dye bath containing a selected disperse dye.

Abstract: Graft copolymers which are isoolefin/para-alkylstyrene copolymer represented by the formula ##STR1## in which R and R' can be hydrogen, alkyl, and the primary and secondary alkyl halides, "a" ranges from about 14 to about 70,000, "b" ranges from 0 to about 70,000, "c" ranges from 0 to about 70,000, "d" ranges from about 1 to about 70,000, X is a halogen, and Nu is a nucleophilic residue provided by a polymeric nucleophile.

Abstract: Disclosed are copolymers of ethylene and alkyl acrylate monomers and methods of making those copolymers. Said copolymers exhibit increased melt-point temperatures and decreased hardness over similar conventional copolymers.

Abstract: Extended flexible life laminates such as credit cards have at least one core layer and generally on each side thereof at least one overlayer. The core layer composition comprises polyvinyl chloride, a copolymer derived from vinyl chloride and vinyl ester monomers, at least one acrylic resin polymer, as well as a copolymer derived from ethylene and vinyl acetate monomers. Desirably, at least one side of the core layer is corona treated in order to improve ink adhesion thereto. The overlay composition is similar but generally is transparent. After the core layer and the overlayers are laminated together, the credit card can be embossed with pertinent information such as name, expiration date, credit card number, and the like. The laminated credit card can optionally but desirably contain a magnetic strip on the overlayer or a microchip therein. The laminates of the present invention generally have increased flex life, improved ultra violet light resistance, and low melting points.

Abstract: The invention relates to a recycable, heat-sealable plastic film for hermetically sealing plastic containers, comprising at least two layers which mutually adhere, (i) a support layer comprised of an impact resistant polystyrene resin and (ii) a sealing layer consisting essentially of: a) 20-100 weight % of a copolymer P consisting essentially of:(p1) 20-90 weight % methyl methacrylate and/or ethyl methacrylate;(p2) 10-80 weight % of at least one monomer of formula I ##STR1## where R.sub.1 represents an C.sub.3-24 alkyl group; and (p3) 0-10 weight %, preferably 1-8 weight %, of a monomer which is copolymerizable with and different from the monomers (p1) and (p2); and(b) 0-80 weight % of a block copolymer containing styrene blocks.

Abstract: Adhesive beads comprise a core comprising a pressure sensitive adhesive material and an essentially discontinuous organic polymer disposed about the core. The beads are free-flowing at room temperature. Upon application of heat and/or pressure the core is activated and blends with the coating to provide a pressure sensitive adhesive.

Abstract: This invention relates to plastic containers hermetically sealed with a peelably heat-sealable plastic film comprised of a polymeric mixture comprised of 1-99 parts by weight (pbw) of an impact-resistant polystyrene resin and 99-1 pbw of a copolymer consisting essentially of:p1) 20-90 weight % methyl methacrylate, ethyl methacrylate or a mixture thereof;p2) 10-80 weight % of at least one monomer of formula (I): ##STR1## and where R.sub.1 represents an alkyl group with 3-24 C atoms; andp3) 0-10 weight %, preferably 1-8 weight %, of a monomer which is copolymerizable with and different from the monomers (p1) and (p2).

Abstract: The inventive adhesive composition provides a whitening effect upon peeling. The composition comprises (A) ethylene vinyl acetate polymer, ethylene acrylate polymer or mixtures thereof; (B) a styrene polymer, and optionally (C) a polyolefin.

Abstract: Azlactone-functional membranes prepared by solvent phase inversion techniques are disclosed. Adduct membranes prepared by the reaction of azlactone-functional membranes with nucleophilic reagents are also disclosed. Both azlactone-functional copolymers and blends of azlactone-functional homopolymers or copolymers with blending polymers can be used. These azlactone-functional membranes have azlactone functionality throughout all surfaces formed ab initio into any desired shape. Membrane properties can be modified by sacrifice of some azlactone functionality via crosslinking between azlactone moieties or coupling of hydrophilic ligands.

Abstract: Polymer melt blends of a homopolymer of propylene or a copolymer of propylene with up to 40 weight percent of another monoolefin, with a homopolymer of one or more of a C.sub.10 to C.sub.30 alkyl (meth)acrylate or a copolymer containing at least 70 weight percent of the one or more C.sub.10 to C.sub.30 ester of an alkyl (meth)acrylate with up to 30 weight percent of one or more of a C.sub.1 to C.sub.9 alkyl (meth)acrylate, the homopolymer or copolymer having a weight-average molecular weight of at least 670,000, exhibit a relative characteristic time, as herein described, at least five (5) times that for the unmodified homo- or copolymer of polypropylene, and a melt strength ratio (as judged by relative sag resistance) at least 5 times that of the unmodified homo- or copolymer of polypropylene. Such blends are useful in thermoforming operations wherein sheet is thermoformed into cartons, containers, appliance housings, and the like.

Abstract: Polyethylene has a number of desirable properties. However, for some thin film applications it is desirable to increase the stiffness of the film. This may be accomplished by incorporating a polymer of a vinyl aromatic monomer into the alloy. Such two-component blends have a low impact and low tear resistance. These deficient properties of the alloy may be significantly increased, without any significant loss of stiffness by further incorporating into the alloy a polymer based on a copolymer of ethylene and an alkyl ester of an ethylenically unsaturated carboxylic acid.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: A resin composition for an electrophotographic toner is here disclosed which comprises an ethylene series high polymer (Y) and an ethylene series polymer (X) prepared from 100 parts of a bifunctional ethylene series unsaturated monomer and 0.01-10 parts by weight of a substance having three or more peroxide groups in the molecule and/or a substance having one or more unsaturated functional groups and one or more peroxide groups in the molecule, Mw/Mb (Mw is weight-average molecular weight, and Mb is weight-average molecular weight between crosslinking points) of said polymer (X) being from 2 to 99, Mw of said polymer (X) being 50,000 or less. This resin composition is excellent in the balance of various physical properties required for the toner, and particularly, it is excellent in offset resistance and toner strength.

Abstract: Heat distortion temperature of polyvinyl chloride compositions can be significantly increased above the heat distortion temperature of uncompounded polyvinyl chloride while good appearance of extruded material is preserved by preblending an imidized acrylic resin having a glass transition temperature above 130.degree. C. with a third polymer melt-processable throughout the temperature range of 150.degree.-300.degree. C. under conditions where a two-phase blend is formed, wherein the third polymer forms the continuous phase and the imidized acrylic resin forms the dispersed phase and then melt-blending the two-phase blend with polyvinyl chloride at a temperature of 150.degree.-220.degree. C. to form a composition in which the imidized acrylic resin forms a substantially homogeneous blend with polyvinyl chloride.

Abstract: The invention relates to the use of polypropylene glycol as a shrinkage-reducing additive in dispersion powder compositions for construction materials containinga) a base polymer from the group consisting of vinyl ester polymers, (meth)acrylate and/or styrene (co)polymers and vinyl chloride polymers, andb) eitherb1) 2 to 20% by weight, based on the base polymer, of polyvinyl alcohol having a degree of hydrolysis of 85 to 94 mol % and a Hoppler viscosity of 2 to 40 mPa.s orb2) 2 to 20% by weight, based on the base polymer, of alkali metal salts or alkaline earth metal salts of phenolsulfonic acid-formaldehyde condensation products, andc) 3 to 30% by weight, based on the total weight of polymeric components, of fine antiblocking agents, whereind) the content of polypropylene glycol is 1 to 20% by weight, based on the base polymer.

Abstract: Disclosed herein are crosslinked spherical fine particles having good toughness, elastic properties, and chemical properties, and a process for producing the same, said fine particles being obtained by radical polymerization in the suspended state of a component [M] capable of radical polymerization containing a vinyl group-containing compound (V) capable of radical polymerization which is obtained by reaction of (a) a selected polyol, (b) an isocyanate group-containing compound, and (c) an active hydrogen-containing vinyl monomer capable of radical polymerization. Also disclosed herein are the secondary products of the crosslinked spherical fine particles, which include a coating composition and its derivatives (such as filmlike article, sheetlike article, adhesive filmlike article, and adhesive sheetlike article) and a peelable pressure-sensitive adhesive and peelable pressure-sensitive adhesive article.

Abstract: A resin composition for toners with excellent characteristics is provided. The composition comprises, as principal components, a resin (A) containing carboxyl groups and a resin (B) containing glycidyl or .beta.-methylglycidyl groups, wherein the resin (A) is obtained by a reaction between a multivalent metal compound (m) and copolymer .alpha., said copolymer .alpha. being obtained from a styrene type monomer (a), a (meth)acrylic ester monomer (b), and a vinyl type monomer (c) containing carboxyl groups, and the resin (B) is copolymer .beta. obtained from a vinyl type monomer (d) containing glycidyl or .beta.-methylglycidyl groups and another vinyl type monomer (e).

Abstract: The present invention relates to a heat-sealable and peelable film for polystyrene containers, consisting of at least one thin film comprising a mixture (a) of polystyrene and (b) of one or more copolymer(s) of ethylene and of acrylic derivatives.It also relates to a process for sealing a polystyrene container by means of said film and to the heat-sealed polystyrene container thus obtained.

Abstract: A processing agent for polyvinyl chloride and other thermoplastic polymers. The processing agent is a copolymer which contains a monomer whose homopolymer has a T.sub.g .gtoreq.65 C. and contains 3 to less than 75% by weight of a comonomer which has a C.sub.8 -C.sub.22 alkyl component. The alkyl component should be apportioned in such a fashion that the transmission of the copolymer in ethyl acetate is at least 90% in the case of a 10% solution.

Abstract: The invention relates to a method of manufacturing monodisperse poly(meth)acrylates by the method of precipitation polymerization, comprising polymerizingi) a monomer mixture comprising at least 60 wt. % of monomer of formula I ##STR1## where R represents hydrogen or methyl; and R.sub.1 represents a C.sub.1-8 alkyl group, a C.sub.6-24 aryl group, a C.sub.1-8 alkyl substituted aryl group or an aralkyl group;ii) 0.1-10 wt. % based on the weight of the monomer mixture of a block copolymer having polystyrene components; andiii) 0.02-2 wt. % based on the weight of the monomer mixture of a percarbonic acid ester;in a halogen free solvent comprising 70 to 100 wt. % of cyclohexane.

Abstract: A polyolefin-based matte film or sheet can be prepared from a polymeric blend of the preset invention comprising a propylene polymer or copolymer as component (A), a specific ethylene-.alpha.-olefin copolymer (E.alpha.O, so-called "super low-density polyethylene") as component (B), and a high-pressure radical polymerization process ethylene polymer or copolymer and/or a modified polyolefin-based resin as component (C). The above blend of the present invention may further comprise an inorganic filler as component (D) and a flame retardant as component (E). The matte films or sheets prepared from these polymeric blends are excellent in tensile modulus, flexibility, impact resistance, thermal resistance, laminating properties, flame resistance, chalking resistance, covering power, scratch resistance, and widely used for fabricating adhesive tapes, covers or cases for stationery, fashion bags, sheets for interior finish work in construction and automobile industries, and sheets for dressing steel plates.

Abstract: Polymeric powder coating compositions featuring improved physical properties including improved impact strength, improved adhesivity and other properties is provided by a polymeric powder coating composition which comprises: (a) polymeric powder coating resin, (b) at least one low molecular weight ethylene copolymer having a degree of saponification of at least 25%, (c) a further constituent selected from the group consisting of catalyzing agents, flow control agents, coloring agents, fillers, processing aids, wherein the weight ratio of (b) to (a) is preferably in the range of 0.01%-20% to 99.99%-80%. The powder coating composition may be applied to articles using conventional techniques. Processes for producing the polymeric powder coating compostiions, and articles comprising the same are also disclosed.

Abstract: Disperse dyeable compositions of ethylene alkylacrylate grafted onto polyolefin (isotactic polypropylene) are provided. A process for disperse dyeing polyolefin (isotactic polypropylene) shaped into articles such as fibers is provided. This process comprises (1) extruding the polyolefin with about 2 to 30 percent by weight of a thermoplastic copolymer of ethylene and alkylacrylates having one or four carbons in the alkyl group into fibers, and (2) exposing the fibers to a disperse dye bath containing a disperse dye.

Abstract: A nonflammable injection-molding resin composition. The composition includes a nonflammable resin component containing a low-molecular-weight styrene resin having a high .alpha.-methylstyrene content; a rubbery polymer having grafted thereon a vinyl cyanide and/or alkyl (meth)acrylate monomer and an aromatic vinyl monomer; a low-molecular weight post-chlorinated polyvinyl chloride resin and, optionally, a vinyl chloride resin; and, as a moldability-improving agent, a specific alkyl acrylate resin comprising a vinyl cyanide monomer, an alkyl acrylate monomer and an optional copolymerizable vinyl monomer. The nonflammable resin composition provides injection-molded articles with a good balance of impact strength and non-peeling properly and is excellent in moldability.

Abstract: A polymer blend composition comprising:(a) from 0.5 to 99 percent by weight, based on the total weight of (a), (b), and (c), of an aliphatic .alpha.-olefin homopolymer or interpolymer, or an interpolymer of an .alpha.-olefin and a non-aromatic monomer interpolymerizable therewith;(b) from 0.5 to 99 percent by weight, based on the total weight of (a), (b), and (c), of a homopolymer or interpolymer of monovinylidene aromatic monomers, or an interpolymer of monovinylidene aromatic monomer and a monomer interpolymerizable therewith other than an aliphatic .alpha.-olefin; and(c) from 0.5 to 99 percent by weight, based on the total weight of (a), (b), and (c), of a substantially random interpolymer comprising an .alpha.-olefin and a vinylidene aromatic monomer.

Abstract: An adhesive composition, useful for making a repositionable sheet, which is made up of a mixture of: (a) a polymer prepared by aqueous suspension polymerization of at least one monomer selected from an acrylate, a methacrylate and acrylic acid, the polymer having a geometric mean particle size ranging from about 30 to about 100 microns; and (b) a polymer prepared by aqueous suspension polymerization of at least one monomer selected from an acrylate, a methacrylate and acrylic acid, the polymer having a geometric mean particle size ranging from about 4.1 microns up to about 30 microns.

Abstract: Thermosettable composition suitable for the production of endless objects without the use of continuous carrier material, whereby the composition comprises an epoxy resin or an unsaturated polyester and a high molecular weight thermoplastic polymer which has a weight-average molecular weight of at least 1,000,000 g/mol in an amount to make the composition spinnable, the amount ranging from at least 0.1% where the polymer has a molecular weight of 5,000,000 g/mol or more or less than 2% where the polymer has the weight-average molecular weight of 1,000,000 g/mol, the amount decreasing as the weight-average molecular weight increases.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: A thermoplastic coupling agent mixture (A) containinga) 5 to 95% by weight of an ethylene copolymer (A.sub.I) having minor amounts of polar comonomers, andb) 5 to 95% by weight of a copolymer (A.sub.II) of aromatic monovinyl comonomers and conjugated dienesis suitable in particular as a component in thermoplastic polymer mixtures that contain polyolefins (B), copolymers of styrene (C), and also if appropriate further thermoplastic polymers (D), and the components (B), (C) and if appropriate (D) may also be used in the form of reprocessed polymers obtainable by regranulating molded parts produced from the relevant materials.

Abstract: Heat shrinkable thermoplastic compositions are prepared by blending an ethylene copolymer resin with an EPDM rubber and dynamically vulcanizing the rubber. The ethylene copolymer resin is a copolymer of ethylene with an alkyl ester of an alpha, beta monoethylenically unsaturanated monocarboxylic acid as well as copolymers of ethylene with the acid per se. The preferred copolymer is ethylene-vinylacetate copolymer. Uncured rubber can be included in the composition.