Abstract: Polymer particles or beads for use as opacifiers in paints are described in which a core is provided with a hard sheath and the particle has one or more voids produced by reaction with a non-volatile permanent or fixed base. The sheath is a coploymer of an ethylenically unsaturated aliphatic monomer free of acid groups and at least 2 percent by weight of a soft ester-containing monomer and optionally styrene in an amount of up to 25 mole percent. The core is formed from an ethylenically unsaturated monomer with acid functionality.The sheath polymer has a glass transition temperature of at least 40.degree. C. The particles have a size of up to 40000 nanometers before swelling the core by some 150 to 2000 percent.

Abstract: According to the present invention, there is provided a modified polyolefin resin having the following merits:(1) The amount of bound unsaturated carboxylic acid, a derivative thereof of unsaturated epoxy compound is high.(2) The change of the melt flow rate during the modification is small.(3) The physical properties are of high grade.(4) The coating affinity with urethane coatings and resistance to falling off of the coating layer are excellent.The modified polyolefin resin of the present invention can be used for adhesives, covering materials, binders, laminate bonding agent and polymer alloy constituents.

Abstract: A method for altering a macroporous cross-linked hydrophobic copolymeric lattice produced by precipitation polymerization in a solvent of at least one monounsaturated ester monomer and at least one polyunsaturated ester monomer soluble therein, in order to render the hydrophobic copolymeric lattice hydrophilic. The method involves saponifying the hydrophobic copolymeric lattice by reacting the surface of the hydrophobic copolymeric lattice with an aqueous alkali. The surface can also be rendered hydrophilic by polymerizing an acrylate monomer onto the lattice in order to form a surface containing carboxylic acid sites. The carboxylic acid sites formed on the surface of the lattice are converted to carboxylate anions.

Abstract: A water swellable resin composition comprises a water swellable resin and a medium such as a plasticizer, solvent, resin or resin solution. The resin is an alkali metal salt and/or hydrophilic amine salt of a copolymer of hydrophobic polymer chains having an .alpha.,.beta.-ethylenically-unsaturated group at end thereof and a monomer composed principally of (meth)acrylic acid.

Abstract: The inventive vehicle, or binder, for water based gloss paints contains, dispersed in a aqueous phase, particles of a multiphase emulsion polymer made up of(a) core material having a glass transition temperature exceeding 40.degree. C. and(b) a shell material having a glass transition temperature of less than 70.degree. C. and at least 20 K. below that of the core material.The particles have an average diameter of less than 200 nm. The composition of the shell material includes an emulsion polymer with at least 4 percent by weight of an ethylenically unsaturated carboxylic acid and more than 80 percent by weight of one or more monomers from the group consisting of styrene and alkyl esters of acrylic and/or methacrylic acid. Paint coats produced with this vehicle are distinguished by a high blocking point.

Abstract: Group Transfer Polymerization (GTP) process for preparing a "living" polymer, the process comprising contacting under polymerizing conditions in a polymerization medium, at least one acrylic or maleimide monomer with an initiator which is a tetracoordinate organosilicon, organotin or organogermanium compound having at least one GTP initiating site and a catalyst which is or is a source of an anion selected from the group consisting of bifluoride, fluoride, cyanide, azide or a selected oxyanion, or a selected Lewis acid or Lewis base, the process further characterized in that the initiator or the anion or Lewis acid catalyst is chemically attached (grafted) to a solid support that is insoluble in the polymerization medium.

Abstract: Electron-beam cure by itself or in combination with multifunctional additives is used to improve the high-temperature shear properties of emulsion polymerized pressure-sensitive adhesives.

Abstract: Stabilized polymer dispersions in which the principal polymer contains a core component of acrylic polymers and stabilizer components which are polymers of ethylenically unsaturated monomers and which are grafted to the core component at the stabilizer ends, can be prepared using a catalytic chain transfer agent containing Co.sup.+2.

Abstract: The present invention relates to a process for the functionalization, and preferably the maleation of a polyolefin, preferably polypropylene, by use of a selected class of peroxides which will not cause the molecular weight of the polyolefin to significantly degrade. The class of peroxide initiators which are capable of successful use in the present invention may be more broadly classified as peroxides which have radical fragments when the peroxide is dissociated, which are a combination of R.multidot. and R0.multidot., where R is an aliphatic hydrocarbon, and 0 is oxygen. The preferred peroxide initiators for use in carrying out the present invention so as to obtain the results indicated above are t-butyl peroxypivalate and isononanoyl peroxide. The composition resulting from the practice of the process of the invention is a maleated polypropylene in which the polypropylene has more than 0.3 weight percent grafted maleic anhydride and preferably greater than 0.4 weight percent, for example, from 0.

Abstract: A stabilizer for polymer/polyols characterized by four key features: (1) prepared from a starting polyol having a functionality greater than 4; (2) having at least 60% retained unsaturation; (3) having a viscosity greater than 2000 cSt; and (4) prepared where the starting polyol is capped with alkylene oxide and/or the adduct formed between the starting polyol and the reactive unsaturated compound is capped with ethylene oxide.

Abstract: The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be used as processing and performance modifiers pololefins. Generally the compatibilizing additive is a graft copolymer of a polyolefin and a methacrylate. More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH.sub.2 .dbd.C(CH.sub.3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, off an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non-polar polyolefin trunk, so that at least one chain is a polymer with a weight averge molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.

Abstract: Disclosed are electrorheological (ER) fluids which display improved stability against sedimentation, reduced current density and good ER responses. Thes=e ER fluids are prepared from monomers which are polymerized by dispersion polymerization in a low conductivity medium which also serves as the dispersion medium for the fluid. The ER fluids are further processed by modifying the polymer particles through polymerization of a hydrophilic monomer to form a hydrophilic shell or globule around the particles followed by neutralization through addition of an organic soluble base. The resulting dispersion is then doped with water to obtain a stable ER fluid. The hydrophilic shell or globule constitutes about 15% of the particle. Water dopant is only absorbed by the hydrophilic portion of the particle and does not enter into the core of the particle. The quantity of water is significantly reduced, which in turn results in a significant reduction of the current density at any given comparative voltage.

Abstract: Disclosed are electrorheological (ER) fluids which display improved stability against sedimentation, reduced current density and good electrorheological response. These ER fluids are prepared from monomers which are polymerized by dispersion polymerization in a low conductivity medium which in most embodiments of the invention serves as the dispersion medium for the fluid. the ER fluids are further processed by modifying the polymer particles through polymerization of a hydrophilic monomer to form a hydrophilic shell or globule around the particles. The resulting dispersion is then doped with water to obtain a stable ER fluid. The hydrophilic shell or globule constitutes a minor part of the particle. Water dopant is only absorbed by the hydrophilic portion of the particle and does not enter into the core of the particle. The quantity of water is significantly reduced, which in turn results in a significant reduction of the current density at any given applied field strength.

Abstract: Composite resin particles each comprising a particulate crosslinked polymer to which a number of substantially linear, metal-containing polymer chains are chemically bonded. The invention also provide methods for the preparation of said composite resin particles. The present composite resin particles have self-film forming properties, can give a stable dispersion in an organic solvent or a resinous varnish and are specifically useful in paint industries. The particles are further characterized by having the desired properties of the metal element contained therein, as, for example, self-catalytic function in crosslinking, excellent biological activities and the like.

Abstract: Composite resin particles each comprising a particulate crosslinked polymer to which a number of substantially linear, metal-containing polymer chains are chemically bonded. The invention also provide methods for the preparation of said composite resin particles. The present composite resin particles have self-film forming properties, can give a stable dispersion in an organic solvent or a resinous varnish and are specifically useful in paint industries. The particles are further characterized by having the desired properties of the metal element contained therein, as, for example, self-catalytic function in crosslinking, excellent biological activities and the like.

Abstract: The invention provides polymeric compounds resulting from the condensation of a primary amine having one phenolic group in its molecule with a copolymer of carboxylic acid functions.The copolymer is formed by copolymerization of an unsaturated monocarboxylic acid with at least one derivative of such a acid or by grafting of an unsaturated acid on a hydrocarbon polymer. These compounds can be especially used as multifunctional additives to lubricants.

Abstract: Polymer particles or beads for use as opacifiers in paints are described in which a core is provided with a hard sheath and the particle has one or more voids produced by reaction with a nonvolatile permanent or fixed base. The sheath is a copolymer of an ethylenically unsaturated aliphatic monomer free of acid groups and at least 2 percent by weight of a soft ester-containing monomer and optionally styrene in an amount of up to 25 mole percent. The core is formed from an ethylenically unsaturated monomer with acid functionality.The sheath polymer has a glass transition temperature of at least 40.degree. C. The particles have a size of up to 40000 nanometers before swelling the core by some 150 to 2000 percent.

Abstract: The present invention relates to a sequential polymerization process for preparing a water-insoluble dispersion of core/shell particles. In one embodiment the process may be employed to produce a particulate dispersion useful in making water-based coating compositions wherein on drying the particulate dispersion serves as an opacifying agent. In another embodiment the process may be employed to microencapsulate a hydrophobic target material, such as a biocide or herbicide.

Abstract: Multi-stage polymer particles containing one or more void space(s) therein are produced by sequential emulsion polymerization of an essentially low-acid earlier polymer stage, encapsulation of said low-acid polymer stage with at least a final polymer stage, contacting said polymer particles with a non-polymeric carboxylic acid or anhydride to permit the acid or anhydride to be absorbed into said low-acid polymer stage and swelling the polymer particles by contacting the particles with an aqueous base. The low-acid polymer stage is formed by emulsion polymerizing a monomer system comprising ethylenically unsaturated monomer(s) and containing less than 5% by weight of monomer(s) containing acid functionality. The low-acid polymer stage is swubsequently encapsulated by one or more polymer stages by emulsion polymerizing ethylenically unsaturated monomer(s) in the presence of the low-acid polymer stage. The final stage has a glass transition temperature (Tg) of about 50.degree. C.

Abstract: Lubricating oil composition comprising a major proportion of a mineral lubricating oil and, as viscosity index improver, a hydrogenated block copolymer or olefin copolymer functionalized by the presence of carboxyl groups attached to the polymer chain by a sulphonamide linkage.

Abstract: Functionalized, selectively hydrogenated block copolymers are produced by reacting a maleic acid compound with a selectively hydrogenated block copolymer of monoalkenyl aromatic compound and conjugated alkadiene having within the aromatic portion monomer units containing a benzocyclobutene moiety.

Abstract: Polycarboxylic acids and their salts corresponding to the following general formula[X]--(NHOC--Y--COO M).sub.n (I)in whichX is the residue of a hydrophobic, linear or branched vinyl oligomer having an average molecular weight M.sub.n of from 200 to 5000 and preferably from 300 to 3000,Y is the 1,2-vinylene, 1,2-ethylene, 1,3-propylene, 1,2-phenylene, 1,2-cyclohexen-4-ylene or 1,2-cyclohexylene group,n is a number of from 1.4 to 3.0 and preferably from 1.6 to 2.3 andM is hydrogen, an alkali metal, an ammonium, C.sub.1 -C.sub.4 alkylammonium or C.sub.2 -C.sub.3 hydroxyalkylammonium group, which are useful as surfactants and emulsifiers in aqueous systems.

Abstract: Composite acrylic acrylic resin particles each comprising a particular metal-containing crosslinked acrylic polymer to which a number of substantially linear acrylic polymer chains are chemically bonded are provided. Such particles are specifically useful as resinous filler in curing type coating compositions because of having curing catalytic activities.

Abstract: A novel graft copolymer capable of imparting to a polyolefin when blended therewith high tensile modulus and high sag resistance without increasing melt viscosity, and a method of making the same. The graft copolymer is a polyolefin having a relatively high weight-average molecular weight methacrylate polymer grafted thereto. The graft copolymer is formed by dissolving or swelling a non-polar polyolefin in an inert hydrocarbon solvent, heating to dissolve the polyolefin, and while stirring the mixture, adding a methacrylate monomer, together with an initiator to produce a constant, low concentration of radicals, to form a graft copolymer with a high molecular weight polymer chain covalently bonded or grafted to the polyolefin backbone. The graft copolymer can be separated from the solvent, isolated by volatilizing the solvent, for example in a devolatilizing extruder, and extruded into a desired shape such as a sheet, tube or the like. This graft copolymer can be blended with a polyolefin matrix.

Abstract: Polypropylene articles are provided. The polypropylene articles comprise non-crystalline mesomorphous polypropylene having olefinic unsaturation-containing monomers graft-polymerized thereon by ionizing radiation in a dosage sufficient to degrade crystalline polypropylene. The irradiated polypropylene articles retain useful tensile properties after storage periods of as long as at least about four months.

Abstract: The polymers of ethylenically unsaturated monomers exhibit a greater degree of clarity and a greater degree of heat stability than do vinylidene chloride copolymers but do not have the barrier properties of vinylidene chloride copolymers. The present invention is an emulsion polymerized interpolymer, which provides both clarity and low oxygen permeability to applications where such properties are required of a polymer, having two miscible phases, which comprises (a) a first phase of an effective amount of at least one ethylenically unsaturated monomer and (b) a second phase of an effective amount of vinylidene chloride monomer and at least one ethylenically unsaturated comonomer wherein the first phase and the second phase are miscible.

Abstract: An elasticized, dispersion-grade vinyl chloride resin powder is provided which not only imparts improved elasticity and reduced hysteresis losses to fluid plastisols made therewith, but also has excellent stability under adverse environmental conditions, insuring consistent performance in plastisols even after said powder has been in storage for several months. This resin powder has an average particle size between about 0.4 and about 4 microns and contains between about 0.5 and about 20% by weight of an elastomeric acrylic polymer having a T.sub.g below about -10.degree. C. which is present as discrete particles most of which are at least partly occluded by hard thermoplastic vinyl chloride polymer formed in situ, which vinyl chloride polymer represents substantially all of the remaining mass of said powder.Fluid plastisols prepared from said resin powder are also described as well as finished articles of improved resiliency and elasticity, which are made from said plastisols.

Abstract: A rubber composition for a solid golf ball comprising a rubber component containing at least 40% by weight of a polybutadiene rubber which has a Mooney viscosity [ML.sub.1+4 (100.degree. C.)] of 45 to 90 and a cis-1,4 bond of at least 80%, a co-crosslinking agent and a peroxide.

Abstract: A modified block copolymer composition comprising a thermoplastic polymer and a modified block copolymer consisting essentially of a base block copolymer of a monovinyl substituted aromatic hydrocarbon polymer block and an olefin compound polymer block having an ethylenic unsaturation degree not exceeding 20%, the base block copolymer having a molecular unit containing a carboxylic acid group and/or a group derived therefrom grafted thereto. The modified block copolymer composition of the present invention is a resinous composition excellent in impact resistance, adhesion, paint adhesion, weatherability, resistance to thermal deterioration, transparency and gloss or a rubbery or leather-like composition excellent in heat resistance, abrasion resistance, compression set resistance, adhesion, transparency, oil resistance, weatherability and resistance to heat aging.

Abstract: The present invention relates to a method of synthesizing a bigraft compolymer based on grafted type peracid polymer, which comprises graft polymerizing a first ethylenically unsaturated monomer containing a carboxyl group onto a polymer substrate having a form of a membrane, particulate or tube; oxidizing the carboxyl groups of the resulting graft polymer into peracids; and then graft polymerizing a second ethylenically unsaturated monomer onto the grafted chain of the graft polymer through the decomposition of the peracid. Surface profile and morphology of the bigraft copolymer membrane product is also investigated by scanning electron microscopy and transmission electron microscopy respectively.

Abstract: A process for incorporating carboxy and/or carboxyl derivative functionality into a hydrocarbon polymer which is substantially free of ethylenic unsaturation. The functionalization is accomplished by contacting the functionalizing agent or agents with the polymer in the presence of a free radical initiator in a blending apparatus capable of imparting high mechanical energy into the reaction medium. The blending apparatus is preferably an extruder and most preferably a non-intermeshing twin screw extruder. The amount of degradation resulting from the presence of a free radical initiator and the high mechanical shear at the elevated temperatures employed during the contacting is reduced by effecting the contacting in a suitable diluent. Similarly, the amount of polymer crosslinking and/or coupling is reduced through the use of a suitable diluent. The polymer is maintained in the molten phase during the reaction.

Abstract: Swollen core/sheath polymeric particles are disclosed having one or more voids in the core formed by reaction with a base such as sodium hydroxide. The sheath contains styrene or similar monomer polymerized in an amount greater than 25 mole percent and the polymer is free of acid groups. The core contains acid groups. Swelling is effected at an elevated temperature and in the absence of an organic solvent.The swollen particles on drying in a paint or other composition have air in the voids and act then as opacifying agents.

Abstract: The present invention relates to grafted ethylene polymers and copolymers characterized in that they are thermoplastic and, if appropriate, crosslinkable and soluble at ambient temperature in organic solvents and/or aqueous media and in that they are prepared by polymerization of (in % by weight relative to the resin obtained):0.5 to 30% of at least one unoxidized polyethylene and/or an unoxidized ethylene copolymer based on at least 70% by weight of ethylene, the said polyethylene or ethylene copolymer being defined by the following properties:a weight average molecular weight (Mw) between 900 and 60,000,a Brookfield viscosity at 190.degree. C. of between 0.1 and 500 poises and/or a Brookfield viscosity at 140.degree. C. of between 0.1 and 2,000 poises.a crystallinity, measured using X rays, of between 10% and 80%,and, if desired, containing ester, anhydride or acid functional groups originating from the ethylene comonomers,70 to 99.

Abstract: Disclosed herein are core-shell polymers having an alkali-insoluble, emulsion polymer core and an alkali-soluble, emulsion polymer shell attached or associated with said core so that upon dissolving said shell with alkali, a portion of said shell remains attached or associated with said core. Also disclosed are compositions wherein said shell polymer has been neutralized and substantially, but not totally, dissolved so as to form a blend of neutralized core-shell polymer and an aqueous solution of neutralized shell polymer.

Abstract: The dental agent is based on a liquid monomer, mixture of monomers or preymer containing acrylic, methacrylic or vinyl groups with addition of acrylic or methacrylic acid as the base mixture, and further contains(A) a halogen-sulfonated polyolefin and/or(B) a halogenated acrylate or methacrylate.The boding agent is especially well suited to prepare permanent composite dental bonding of metal and plastic and of ceramics and plastics.

Abstract: A modified ethylenic random copolymer derived from 100 parts by weight of base ethylenic random copolymer composed of 25 to 75 mole % of ethylene and 75 to 25 mole % of an alpha-olefin having 3 to 20 carbon atoms and grafted thereto, (a) 0.2 to 50 parts by weight of an unsaturated carboxylic acid having 3 to 10 carbon atoms or an anhydride or ester thereof, (b) 0.2 to 200 parts by weight of a styrene-type hydrocarbon having 8 to 12 carbon atoms, or (c) 0.2 to 300 parts by weight of an unsaturated silane compound having 2 to 20 carbon atoms, said modified ethylenic random copolymer having an intrinsic viscosity [.eta.], measured in decalin at 135.degree. C., of 0.01 to 1.5 dl/g and a molecular weight distribution (Mw/Mn), measured by gel permeation chromatography, of not more than 4.

Abstract: Novel adhesives for preparing metal foil adhesive tapes meeting Underwriter Laboratories requirements for use with rigid fiberglass air ducts, which adhesives comprise a self- (internally) crosslinked copolymer of: (1) from about 1.5 to about 2.5 parts by weight of at least one activated ester-containing vinyl monomer of Formula I (as defined hereinafter); (2) from about 11 to about 14 parts by weight of at least one ethylenically unsaturated carboxylic acid containing 3-5 carbon atoms; (3) from about 70 to about 80 parts by weight of at least one acrylic or methacrylic acid ester of a non-tertiary alcohol having 1-14 carbon atoms; and (4) from about 6 to about 15 parts by weight of at least one vinyl ester of a saturated carboxylic acid.

Abstract: A method for altering a macroporous cross-linked hydrophobic copolymeric lattice produced by precipitation polymerization in a solvent of at least one monounsaturated ester monomer and at least one polyunsaturated ester monomer soluble therein, in order to render the hydrophobic copolymeric lattice hydrophilic. The method involves saponifying the hydrophobic copolymeric lattice by reacting the surface of the hydrophobic copolymeric lattice with an aqueous alkali. The surface can also be rendered hydrophilic by polymerizing an acrylate monomer onto the lattice in order to form a surface containing carboxylic acid sites. The carboxylic acid sites formed on the surface of the lattice are converted to carboxylate anions.

Abstract: A multilayer interpolymer material of an elastomeric inner phase polymerized from (a) 50-99.9 parts of at least one among: conjugated dienes and alkyl and aralkyl acrylates, (b) 0-49.9 parts of at least one copolymerizable monomer, (c) 0.05-8 parts of at least one crosslinking monomer, and (d) 0.05-6 parts of at least one grafting monomer, and a nonelastomeric outer phase, polymerized from (a) 50-99.9 parts by weight of at least one among: alkyl methacrylates, vinyl aromatic hydrocarbons and unsaturated nitriles, (b) 0.1-50 parts of at least one copolymerizable monomer, and (c) 0-5 parts of at least one chain-limiting agent, the parts being given by weight, it being possible for the said polymer to comprise a nonelastomeric or else elastomeric core phase without grafting and crosslinking monomers. Two populations of particles of mean diameter of approximately 40-150 nm and approximately 160-500 nm respectively are mixed in given ratios. This improves the impact strength of the resultant matrices.

Abstract: Stabilized, stereoregular polymers of branched, higher alpha-olefins can be modified with unsaturated silanes, carboxylic acids, and/or carboxylic acid anhydrides in the presence of a free radical generator in the polymer melt. These polymers can also contain additional additives, such as glass fibers.

Abstract: Core/shell polymers containing a rubber-core and a thermoplastic shell acrylate-vinylacetate-acrylic terpolymer having excellent cold seal strength properties.

Abstract: The invention relates to a novel low profile additive (LPA) for uncured polyester resins and the resultant molding compositions. The low profile additive is the reaction product of an ethylene/alphaolefin copolymer with a carboxylic acid or anhydride, to thereby form a non-thermoplastic carboxyl modified polyolefin. The novel LPA is a remarkably effective dimensional stabilizer and has displayed the ability to achieve net expansion in a cured polyester resin molding composition.

Abstract: A thermosetting resin composition comprising a special poly(p-hydroxystyrene) derivative resin and a radical polymerization initiator, and if necessary an epoxy modified polybutadiene, can provide prepregs and laminates having a low dielectric constant, a shorter signalling delay time, good heat resistance and flame retardancy and thus being suitable for producing multilayer printed circuit boards.

Abstract: Polymer opaque particles and a process for making same are disclosed. These particles comprise an emulsion polymerized core copolymer having, as one constituent thereof, between about 15% and about 40% by weight of a monomer having the general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.4 are independently selected from hydrogen, nitro, amino nitrile, hydroxyl and halogen groups, and organic radicals such as substituted or unsubstituted alkyl, cycloalkyl or aryl groups, R.sub.3 is selected from hydrogen or substituted or unsubstituted organic radicals such as alkyl, cycloalkyl or aryl groups and A is an organic or inorganic bridge connecting the illustrated atoms, the remainder being a mixture of selected olefinically unsaturated acid and ester monomers, said core particles, in turn being encapsulated with an emulsion polymerized sheath copolymer comprised of one or more nonionic olefinically unsaturated monomers to produce said opaque particles.

Abstract: Multi-stage polymer particles containing one or more void space(s) therein are produced by sequential emulsion polymerization of an essentially low-acid earlier polymer stage, encapsulation of said low-acid polymer stage with at least a final polymer stage, contacting said polymer particles with a non-polymeric carboxylic acid to permit the acid to be absorbed into said low-acid polymer stage and swelling the polymer particles by contacting the particles with an aqueous base. The low-acid polymer stage is formed by emulsion polymerizing a monomer system comprising ethylenically unsaturated monomer(s) and containing less than 5% by weight of monomer(s) containing acid functionality. The low-acid polymer stage is subsequently encapsulated by one or more polymer stages by emulsion polymerizing ethylenically unsaturated monomer(s) in the presence of the low-acid polymer stage. The final stage has a glass transition temperature (Tg) of about 50.degree. C.

Abstract: Disclosed is a thermoplastic adhesive comprising a modified polyolefin resin having a branch chain having at least one carbonyl group and at least one benzene nucleus in one side chain. This adhesive shows a strong bonding force to a chlorine-containing polymer or an aromatic group-containing polymer such as a polyester and is especially valuable for the production of a laminate of such a resin and a polyolefin. A blend or block copolymer comprising an olefin resin component that can contain a carboxyl group and a carbon-to-carbon chain resin component having a benzoic acid ester or cinnamic acid ester group in the side chain is especially excellent in the bonding characteristics, particularly the heat-resistance adhesion.

Abstract: The invention is directed to a photosensitive polymer composition capable of being electrophoretically depositable as an adherent, uniform photosensitive film on a conductive surface. The photosensitive polymer composition useful for electrodeposition is formed from an aqueous solution or emulsion of at least one polymer having charged carrier groups, a photoinitiator and a source of unsaturation for crosslinking the resulting film upon exposure to actinic radiation. The photosensitive film formed from the photosensitive polymer composition is aqueous developable and resistant to strong inorganic acids and strong bases. The photosensitive polymer composition is useful in the preparation of printed circuit boards, lithographic printing plates, cathode ray tubes, as well as in chemical milling, solder resist and planarizing layer applications.

Abstract: The present invention relates to a modified polyolefine which has good adhesion to metals and to polar substances. The polyolefine is admixed with or grafted to fumaric acid. The fumaric acid may be added at about 0.01-20%, preferably 0.01-1% of the polyolefine weight, while the preferred polyolefine is an ethylene copolymer.

Abstract: Improved core-shell polymers having an alkali-insoluble core and an alkali-soluble shell are prepared by emulsion polymerization of the core-shell polymers utilizing compounds which chemically graft the core and shell together. The core-shell polymers exhibit improved solvent stability, water resistance, heat resistance and rheology. The polymers are useful in application such as inks, coatings and varnishes, floor polishes, leather treatment, cement formulations, and as a seed for further emulsion polymerization.

Abstract: Hydroperoxidized rubber-containing polymers are prepared in a process wherein a rigid phase polymer is prepared by polymerization of one or more free radically polymerizable monomers in the presence of a hydroperoxidized rubbery intermediate in a well stirred back-mixed reactor operating under essentially homogeneous conditions at a solids content of from about 30 to about 75 percent by weight, and an initial rubber content in the feed of from about 5 to about 12 percent by weight.