Abstract: In one aspect, the invention provides ene-thiol elastomers comprising the reaction product of a polythiol free of hydrophilic groups and having at least two thiol groups and an aromatic, heterocyclic, aliphatic, or cycloaliphatic polyene having at least two reactive unsaturated carbon to carbon bonds. In another aspect, the invention provides ene-thiol elastomer comprising the reaction product of (a) a thiol terminated oligomer comprising the reaction product of a polythiol having two thiol groups and a first polyene or mixture of polyenes having two reactive unsaturated carbon to carbon bonds; and (b) a second polyene or a mixture of polyenes having at least 5 percent functional equivalents of unsaturated carbon to carbon bonds from polyenes having at least three unsaturated carbon to carbon bonds. The ene-thiol elastomers of the invention have a weight increase of not more than 4 weight percent in 15 days at a temperature of 22° C.

Abstract: In one aspect, the invention provides ene-thiol elastomers comprising the reaction product of a polythiol free of hydrophilic groups and having at least two thiol groups and an aromatic, heterocyclic, aliphatic, or cycloaliphatic polyene having at least two reactive unsaturated carbon to carbon bonds. In another aspect, the invention provides ene-thiol elastomer comprising the reaction product of (a) a thiol terminated oligomer comprising the reaction product of a polythiol having two thiol groups and a first polyene or mixture of polyenes having two reactive unsaturated carbon to carbon bonds; and (b) a second polyene or a mixture of polyenes having at least 5 percent functional equivalents of unsaturated carbon to carbon bonds from polyenes having at least three unsaturated carbon to carbon bonds. The ene-thiol elastomers of the invention have a weight increase of not more than 4 weight percent in 15 days at a temperature of 22° C.

Abstract: In one aspect, the invention provides ene-thiol elastomers comprising the reaction product of a polythiol free of hydrophilic groups and having at least two thiol groups and an aromatic, heterocyclic, aliphatic, or cycloaliphatic polyene having at least two reactive unsaturated carbon to carbon bonds. In another aspect, the invention provides ene-thiol elastomer comprising the reaction product of (a) a thiol terminated oligomer comprising the reaction product of a polythiol having two thiol groups and a first polyene or mixture of polyenes having two reactive unsaturated carbon to carbon bonds; and (b) a second polyene or a mixture of polyenes having at least 5 percent functional equivalents of unsaturated carbon to carbon bonds from polyenes having at least three unsaturated carbon to carbon bonds. The ene-thiol elastomers of the invention have a weight increase of not more than 4 weight percent in 15 days at a temperature of 22° C.

Abstract: In one aspect, the invention provides ene-thiol elastomers comprising the reaction product of a polythiol free of hydrophilic groups and having at least two thiol groups and an aromatic, heterocyclic, aliphatic, or cycloaliphatic polyene having at least two reactive unsaturated carbon to carbon bonds. In another aspect, the invention provides ene-thiol elastomer comprising the reaction product of (a) a thiol terminated oligomer comprising the reaction product of a polythiol having two thiol groups and a first polyene or mixture of polyenes having two reactive unsaturated carbon to carbon bonds; and (b) a second polyene or a mixture of polyenes having at least 5 percent functional equivalents of unsaturated carbon to carbon bonds from polyenes having at least three unsaturated carbon to carbon bonds. The ene-thiol elastomers of the invention have a weight increase of not more than 4 weight percent in 15 days at a temperature of 22 ° C.

Abstract: The invention provides polymer conjugates of protein kinase C (PKC) inhibitors comprising a polymer, such as poly(ethylene glycol), covalently attached to a PKC inhibitor, such as a bisindolylmaleimide molecule. The linkage between the polymer and the PKC inhibitor is preferably hydrolytically degradable. The invention also includes a pharmaceutical composition comprising a polymer conjugate of a PKC inhibitor and a method of treating any condition responsive to a PKC inhibitor by administering a polymer conjugate of the invention.

Abstract: Disclosed are chlorine containing polymer compositions containing stabilizers which impart good thermal stability. PVC compositions and, in particular, flexible PVC compositions containing stabilizers which are oligomeric and/or polymeric aminouracyls exhibit high thermal stability as evidenced by improved resistance to yellowing and blistering upon extended exposure to high temperatures.

Abstract: An organic block polymer useful in an electroluminescent polymer device (or in a polymer field effect transistor) that includes an emissive polymer block that is consistently conjugated along the backbone of the emissive polymer block (e.g., a copolymer of 2,7-linked 9,9 dioctyl fluorene and 4,7-linked 2,1,3 benxothiadiazole); and a positive charge carrier polymer block that is consistently conjugated along the backbone of the positive charge carrier polymer block (e.g., a copolymer of 2,7-linked 9,9 dioctyl fluorene and 4N, 4N′-linked N,N′-di(3-carboxomethoxyphenyl)benzidine) for transporting positive charge carriers to the emissive polymer block so that the positive charge carriers can combine with negative charge carriers to generate light.

Abstract: Hetero-telechelic polymers having the formula:

Abstract: In one aspect, the invention provides ene-thiol elastomers comprising the reaction product of a polythiol free of hydrophilic groups and having at least two thiol groups and an aromatic, heterocyclic, aliphatic, or cycloaliphatic polyene having at least two reactive unsaturated carbon to carbon bonds. In another aspect, the invention provides ene-thiol elastomer comprising the reaction product of (a) a thiol terminated oligomer comprising the reaction product of a polythiol having two thiol groups and a first polyene or mixture of polyenes having two reactive unsaturated carbon to carbon bonds; and (b) a second polyene or a mixture of polyenes having at least 5 percent functional equivalents of unsaturated carbon to carbon bonds from polyenes having at least three unsaturated carbon to carbon bonds. The ene-thiol elastomers of the invention have a weight increase of not more than 4 weight percent in 15 days at a temperature of 22° C.

Abstract: Azo compounds of the formula (I) are functionalized with heterocycles.

Abstract: An organic electroluminescent (EL) polymer for a light emitting diode in accordance with the present invention is PDPCVz which is prepared by combining a dialkyl substituted phenylene moiety and a carbazole moiety. Another organic EL polymer is PPOPPD which is prepared by combining an oxadiazole moiety and a phenylene moiety. In the present invention, a polymer blend of said PDPCVz and PPDPPO is used for an organic EL polymer. The organic EL polymer according to the present invention is applied to a light emitting layer of a light emitting diode having a cathode/light emitting layer/anode structure, a cathode/buffer layer/light emitting layer/anode structure, or a cathode/hole transporting layer/light emitting layer/electron transporting layer/anode structure. Each of said PDPCVz and PPDPPO can be blended with conventional polymers such as polystyrene, polycarbonate, polyacrylate, polymethylmethacrylate, polyvinylcarbazole, polyimide, liquid crystalline polymer, etc.

Abstract: The present invention provides an antistatic polyester film having an antistatic layer formed of an antistatic agent (A) composed mainly of a polymer having a recurring unit of a structure expressed by the following formula (I) on at least one surface of a polyester film ##STR1## wherein R.sup.1 and R.sup.2 are each H or CH.sub.3, R.sup.3 is an alkylene group having a carbon number of 2 to 10, R.sup.4 and R.sup.5 are each a saturated hydrocarbon group having a carbon number of 1 to 5, R.sup.6 is an alkylene group having a carbon number of 2 to 5, n is a number of 0 to 40, m is a number of 1 to 40, and Y.sup.- is a halogen ion, a mono- or polyhalogenated alkyl ion, nitrate ion, sulfate ion, an alkylsulfate ion, sulfonate ion or an alkylsulfonate ion.

Abstract: Hydrophilic UV light absorbing polymerizing monomers are provided. These monomers are copolymerizable for providing biocompatible hydrogels capable of absorbing at least 90% of the UV light incident to the hydrogels. Such hydrogels are optically transparent, have high refractive indices, and possess long term stability. The hydrogels provided are useful in all applications where hydrogels may be used including intraocular lenses, corneal inlays, corneal onlays, contact lenses and similar applications.

Abstract: There is provided an aqueous resin composition which does not cause coagulation, can be cured at low temperature, and, by this curing, forms a coating superior in mechanical strength, water resistance, solvent resistance and adhesion to various substrates. The aqueous resin composition of this invention comprises an oxazoline group-containing polymer (A), a carboxyl group-containing polymer (B), and an acidic compound-amine salt catalyst (C). The curing is carried out by a reaction between the oxazoline group-containing polymer (A) and the carboxyl group-containing polymer (B) in the presence of the acidic compound-amine salt catalyst (C).

Abstract: A powder paint composition and application method therefor are provided which can form a paint coating which has superior mar resistance and for which the external appearance, such as its smoothness and sharpness, is excellent.This paint powder composition comprises a multi-functional vinyl-type copolymer (A) which has a glass transition temperature of 40.degree. C. and which contains functional groups which are reactable with carboxylic acid; a polycarboxylic acid (B); and a multi-functional vinyl-type copolymer (C) which has a glass transition temperature of 0.degree. C. and which contains functional groups which are reactable with carboxylic acid.

Abstract: Heterogeneous, solvent- and plasticizer-free polyvinyl ester dispersions which are stabilized by protective colloids and which have a minimum filming temperature of below 10.degree. C. are disclosed. These dispersions are made of a mixture of(a) a homopolymer or copolymer A having a glass transition temperature of above 20.degree. C., whereby homopolymer or copolymer A includes(i) from 85 to 100% by weight of at least one vinyl ester of carboxylic acids having 1 to 18 carbon atoms;(ii) from 0 to 5% by weight of at least one .alpha., .beta.-unsaturated carboxylic acid;(iii) from 0 to 5% by weight of at least one mono-olefinically unsaturated compound (a3) having at least one amino or amido group, and(iv) from 0 to 5% by weight of at least one polyethylenically unsaturated monomer, and(b) a copolymer B having a glass transition temperature of below 20.degree. C.

Abstract: Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid groups, aza crown ether groups, oxy crown ethers groups, guanidinium groups, amide groups, ester groups, aminodicarboxylic groups, permethylated polyvinylpyridine groups, permethylated amine groups, mercaptosuccinic acid groups, alkyl thiol groups, and N-alkylthiourea groups are disclosed.

Abstract: A pressure sensitive adhesive that includes:(a) the polymerization product of:(i) 25-98 parts by weight of an acrylic acid ester of a monohydric alcohol whose homopolymer has a T.sub.g less than 0.degree. C.;(ii) 2-75 parts by weight of a non-polar ethylenically unsaturated monomer whose homopolymer has a solubility parameter of no greater than 10.50 and a T.sub.g greater than 15.degree. C.; and(iii) 0-5 parts by weight of a polar ethylenically unsaturated monomer whose homopolymer has a solubility parameter of greater than 10.50 and a T.sub.g greater than 15.degree. C.; and(b) at least one tackifier that is miscible in the polymerization product at room temperature.

Abstract: A particulate polymer A having a mean particle size of less than 1000 nm consists ofa1: up to 99.8% by weight of at least one vinylaromatic monomer a1,a2: up to 99.8% by weight of at least one alkyl methacrylate a2 where the alkyl radical is of 1 to 8 carbon atoms,a3: up to 50% by weight of at least one polar, copolymerizable, ethylenically unsaturated monomer a3,a4: from 0.1 to 10% by weight of at least one polyfunctional, crosslinking monomer a4 anda5: from 0.1 to 15, preferably from 0.5 to 10, % by weight of at least one monomer a5 containing one or more acidic, basic or epoxy groups,the sum of the components a1, a2 and a3 being from 75 to 99.8% by weight, based on A, and the sum of a1, a2, a3, a4 and a5 being 100% by weight, based on A.

Abstract: Disclosed is a water-shrinkable film prepared from a composition comprising an elastomeric polymer and a water-dispersible polymer. Also disclosed is a disposable absorbent product, intended for the absorption of body fluids, including the film. The film is useful in imparting improved water-shrinkability properties to the disposable absorbent product.

Abstract: The present invention relates to an impact resistant polystyrene composition which comprises an (A) styrenic polymer having syndiotactic configuration and a (B) rubbery elastomer modified by a modifier having a polar group, or to an impact resistant polystyrene composition which comprises the aforesaid composition and a (C) rubbery elastomer and/or a (D) poly(phenylene ether).The polystyrene compositions according to the present invention are excellent in heat resistance, modulus of elasticity, impact resistance and extensibility and thus are expected to find effective use for molding electric and electronic materials, industrial construction materials, automobile part, domestic electrical appliances, industrial materials such as various machine parts, etc.

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: Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an amount effective to increase the amount of protein that will bind to the graft copolymer as compared with the base polymer.Also disclosed are polymer/protein compositions comprising a graft copolymer having a protein immobilized on the surface thereof, processes for the preparation of the above-described graft copolymers and compositions, methods of immobilizing proteins, and methods of immunoassay based on such immobilization.

Abstract: Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an amount effective to increase the amount of protein that will bind to the graft copolymer as compared with the base polymer. Also disclosed are polymer/protein compositions comprising a graft copolymer having a protein immobilized on the surface thereof, processes for the preparation of the above-described graft copolymers and compositions, methods of immobilizing proteins, and methods of immunoassay based on such immobilization.

Abstract: A copolymer of a TMI/amino compound 1:1 monoadduct with ethylenically unsaturated comonomers is provided, as well as a process for producing the same. Such copolymers in and of themselves may find use as aminoplast crosslinking agents, or can readily be modified thereto. Curable compositions can be formulated from the crosslinker alone or in combination with polyfunctional active hydrogen compounds, which can be cured to produce crosslinked films and objects.

Abstract: The thermosetting resin composition of the present invention comprises: a polymer (A) containing at least one monomer selected from ethylenically unsaturated dicarboxylic anhydride, mono-ester thereof and mono-amide thereof as a repeating unit; and a polymer (B) containing an addition-polymerizable oxazoline and a hydroxyl group-containing monomer as repeating units, which can rapidly form a cured film excellent in acid rain resistance and other properties at relatively low temperature of 70.degree. to 140.degree. C. The further incorporation of a basic compound (C) and/or a compound (D) selected from the group consisting of a monohydric alcohol, a .beta.-diketone and an ortho-carboxylic ester to this thermosciting resin composition can give a remarkably improved storage stability to this resin composition as a one-part type composition. This thermosciting resin composition can exhibit excellent properties as a top clear coating for motor vehicle.

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: Semi-interpenetrating polymeric networks comprising a blend of hydrophilic and hydrophobic polymers wherein at least one of the polymeric components is crosslinked after blending to form a continuous network throughout the bulk of the material, and through which the uncrosslinked polymeric components are intertwined in such a way as to form a macroscopically homogeneous composition. The integrity of such networks persists even after absorption of solvent. These materials can be used to form durable, non-tacky, ink-absorbent, transparent coatings for graphical materials.

Abstract: Rubber compositions for use in pneumatic tire treads. Specified amounts of NR and/or IR and SBR are combined with a selected class of rubber components of the formula ##STR1## SBR contains in its molecular chains one or more atomic groups of the formula ##STR2## Rebound resilience, skid resistance and fuel saving are greatly improved.

Abstract: A curable composition useful as a clear coat in composite color plus clear coatings contains an epoxy group-containing acrylic copolymer having carbamate, urea or urethane pendant groups and a polyacid curing agent which is a carboxylic acid group-containing oligomer or polymer.

Abstract: Electrically conductive polymers, especially polypyrroles, are formed with a charged polymeric dopant supplying the necessary counter-ions to stabilise the charged conductive form of the conductive polymer. The physical properties of the conductive polymer can thus be usefully modified in ways different from those achieved by non-polymeric dopants or by forming the conductive polymers in pre-existing bodies of non dopant (i.e. uncharged) polymers.

Abstract: A composition comprising a blend of (a) a polymeric matrix component comprising crosslinkable polymers made from 80 to 99 parts by weight of at least one .alpha.,.beta.-ethylenically unsaturated monomer and from 1 to 20 parts by weight of at least one chelating compound, (b) a liquid-absorbent component comprising a water-absorbent, preferably water-soluble, polymer, and (c) a multivalent metal ion as a crosslinking agent. This composition is capable of forming liquid-absorbent, semi-interpenetrating networks. The composition of this invention can provide polymeric matrices which, when coated on a transparent backing, result in transparent coatings capable of providing improved combinations of ink absorption and durability, while at the same time retaining transparency and being amenable to the types of processing commonly used in producing transparent graphical materials.

Abstract: Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an amount effective to increase the amount of protein that will bind to the graft copolymer as compared with the base polymer.Also disclosed are polymer/protein compositions comprising a graft copolymer having a protein immobilized on the surface thereof, processes for the preparation of the above-described graft copolymers and compositions, methods of immobilizing proteins, and methods of immunoassay based on such immobilization.

Abstract: New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils.Copolymers comprising as comonomers therein from 50 to 99.9% by weight of a C.sub.14 -C.sub.22 -alkyl(meth)acrylate and 50 to 0.1% by weight of a comonomer derived from a compound comprising a single polymerizable C.dbd.C group and these copolymers or their mixture with C.sub.14 -C.sub.22 -alkyl poly(meth)acrylates having enhanced pour point depressant properties.

Abstract: Thermoplastic resin compositions having the following component A-1 or A-2, component B and component C:(A-1): a polymer component having a functional group capable of reacting with an amino group, or(A-2): a composition of component (A-1) and a resin that is non-reactive with an amino group and is different from the resin used in the following component B(B) a thermoplastic resin component that is non-reactive with an amino group under the conditions required to mold the entire resin composition; and(C) a graft copolymer obtained by a graft reaction of a thermoplastic polymer, with a compound (I), or a copolymer having the repeating unit (II) and the repeating unit of an ethylenic unsaturated monomer, ##STR1## wherein R.sup.1 -R.sup.4, the same or different represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group.

Abstract: A second order nonlinear optically-active azo monomer comprising a benzimidazole moiety. The monomers can be incorporated into both linear and crosslinked polymers useful in electrooptical devices.

Abstract: A thermoplastic molding material which is made up of components A, B, C, and D. Component A comprises 10-90% of the composition and is a copolymer made up of 30-95% styrene; 4-40% (meth)acrylonitrile, methyl methacrylate, or maleic anhydride; 1-30% of a monomer described by formula in the specification, N-vinylimidazole or N-vinylcarbazole; and up to 40% of a copolymerizable ethylenically unsaturated monomer. Component B comprises 10-90% of the composition and is a copolymer made up of 50-99.9% of an alpha-olefin; 0.1-50% of a monomer containing acid groups; and up to 40% of a copolymerizable ethylenically unsaturated monomer. Component C comprises up to 80% of the composition and is a copolymer made up of 50-95% styrene and 5-50% (meth)acrylonitrile, methyl methacrylate or maleic anhydride. Component D comprises up to 80% of the composition and is made up of a polycarbonate. All percentages are by weight.

Abstract: Graft copolymers and processes for the preparation thereof are provided. The copolymers comprise a base polymer having grafted thereto a monomeric 2-alkenyl azlactone. The surface properties of the graft copolymers can be modified by binding thereto nucleophilic reagents comprising further functional groups with desired properties. Further, the amount of azlactone available at the surface of a graft copolymer for binding to such nucleophilic reagents can be controlled by selecting a surface against which the graft copolymer is formed. The graft copolymers exhibit desirable thermoplastic, melt flow, and adhesion properties and are particularly useful for immobilizing proteins. Methods of immunoassay based on the immobilization of proteins are also disclosed. Another utility of the graft copolymers involves the compatibilizing of immiscible polymer blends.

Abstract: A composition comprising a blend of (a) a polymeric matrix component comprising crosslinkable polymers made from 80 to 99 parts by weight of at least one .alpha.,.beta.-ethylenically unsaturated monomer and from 1 to 20 parts by weight of at least one chelating compound, (b) a liquid-absorbent component comprising a water-absorbent, preferably water-soluble, polymer, and (c) a multivalent metal ion as a crosslinking agent. This composition is capable of forming liquid-absorbent, semi-interpenetrating networks. The composition of this invention can provide polymeric matrices which, when coated on a transparent backing, result in transparent coatings capable of providing improved combinations of ink absorption and durability, while at the same time retaining transparency and being amenable to the types of processing commonly used in producing transparent graphical materials.

Abstract: The invention provides novel acrylic resins particularly useful for formulating polyvinylidene fluoride/thermosetting acrylic polymer coating compositions. The acrylic polymer is comprised of (a) acrylic acids and acrylic esters having no additional functionality, (b) acrylic acids and acrylic esters having additional functionality by which the acrylic polymer may be cross-linked, and (c) an acryloxyalkyl oxizolidine.

Abstract: An impact modifier obtained by emulsion polymerizing acrylic monomer(s), etc., in the presence of a conjugated diene rubber to give a graft rubber polymer, or obtained by polymerizing acrylic monomer(s) and the like ethylenically unsaturated monomers in the presence of the graft rubber polymer, is effective for improving impact resistance and weathering resistance of molded articles obtained from thermoplastic resin compositions containing such an impact modifier.

Abstract: A cementing composition useful in cementing oil, gas and water wells, comprising water, hydraulic cement and an effective amount of water soluble fluid loss additive comprised of a blend of a copolymer of acrylamide/vinyl imidazole in a weight percent ratio of from about 95:5 to 5:95, said copolymer having a molecular weight range of from about 100,000 to 3,000,000, and a terpolymer of acrylamide/acrylamidomethylpropane sulfonic acid sodium salt/vinyl imidazole in a weight percent ratio of 60:20:20, said terpolymer having a molecular weight range of from about 100,000 to 3,000,000. The blend is comprised of a weight percent ratio of copolymer to terpolymer in the range of 20:80 to 80:20. The composition can also optionally include a dispersant such as sodium or potassium salts or a sulfonated naphthalene formaldehyde condensate.

Abstract: A mixed polymer material is formed of a polyelectrolyte ternary copolymer having a hydrophobic backbone and containing 10 to 90 percent unsubstituted portions and the remainder being substituted with hydrophilic groups such as a styrene ternary copolymer of the formula: ##STR1## where R.sup.1 is alkyl, preferably ethyl, and R.sup.5 is hydroxyalkyl, preferably hydroxethyl. The ternary copolymer self-segregates into discrete hydrophilic and hydrophobic domains and is believed to act as a template to segregate the polyelectrolyte into the domains. The mixed polymer has large ion-exchange capacity, very high effective diffusion constants of incorporated counter-ions and prolonged retention of multiply-charged counter-ions. The mixed polymer forms a stable and effective coating for electrodes for electrocatalytic applications.

Abstract: A polymer blend comprises a high nitrile copolymer and a compatible thermoplastic polymer or copolymer containing polar groups, formed from monomers selected from the group consisting of alkylacrylamides, aliphatic and cyclic methacrylates, unsaturated carboxylic acid anhydrides, vinyl pyrrolidones, heterocyclic ring compounds containing two hetero atoms, lactones and phosphorus-containing monomers that form highly crystalline polymers. Such blends can be used to form films and membranes having improved thermal, mechanical and optical properties.

Abstract: A negative-working radiation-sensitive mixture comprising a binder and a polymer containing 1,2,3-thiadiazole groups is disclosed. The binder is a polyfunctional compound having functional groups that react with ketene. The polymer is a compound obtained by polymerization of a compound of the general formula I ##STR1## in which R is a polymerizable group. If the polymer is a copolymer containing comonomers having functional groups capable of reacting with ketene, the binder can be omitted. The negative-working radiation-sensitive mixture is particularly suitable for UV, electron beam and X-ray lithography.

Abstract: Polymer blends composed of two different polymers P1 and P2, which form compatible polymer mixtures where polymer P1 is composed of at least 20 and up to 100% by weight of styrene and polymer P2 is composed of at least 20 and up to 100% by weight of monomers with Formula I ##STR1## where R.sub.1 is hydrogen, methyl or a group ##STR2## and where R.sub.2 or R.sub.2 ', are a group ##STR3## where n is 0-3, R.sub.3 is a 5-8 membered heterocyclic ring, optionally substituted, containing at least 2 hetero atoms in the ring, one heteroatom being oxygen, and R.sub.4 is hydrogen or an alkyl group with 1-6 carbon atoms.

Abstract: Polymer powders comprising aggregated polymer particles, said powders having a low content of fines and being suitable as processing aids in the manufacture of polyvinyl chloride, are made by spray drying an aqueous dispersion (latex) of two emulsion polymers, one of which has a dynamic glass transition temperature above 90.degree. C. and the other of which has a dynamic glass transition below 105.degree. C., the latter being at least 10 K. degrees below the former.

Abstract: A process for preparing a thermoplastic polymer blend of two normally incompatible polymers by treating one polymer such that it contains repeating units of pendant cyclic iminoether groups and treating the other polymer such that it contains coreactive groups which are capable of reacting with the iminoether group to form linkages between the polymers. The compatibilized blend formed by the subject process is also provided.

Abstract: A coating composition comprising an anhydride polymer (A) containing at least two cyclic carboxylic acid anhydride functional groups and a polymer (B) containing at least two functional groups reactive with anhydride groups and selected from hydroxyalkylamino, hydroxyalkoxyalkylamino, hydroxysubstituted acyloxyalkylamino, hydroxysubstituted polyacyloxyalkylamino, mercaptoalkylamino and oxazolidino groups. One of the polymers (A) and (B) comprises at least one flexible polymer chain selected from polyether, polyester, silicone, diene polymer, hydrogenated diene polymer, polyurethane, polyisobutylene and polyacrylate chains. The functional groups characteristic of that polymer are each present as a terminal group at the end of a flexible polymer chain.

Abstract: Substantially solid state thermoplastic thermal radiation suppressor composition for suppressing thermal radiation transmission comprise a thermoplastic substance (e.g., a polymer of polymerized styrene, methyl methacrylate and 2-isopropenyl-2-oxazoline) in intimate contact with a composition (e.g., a polymer of polymerized ethylene and acrylic acid) which exhibits a refractive index essentially equal to that of said thermoplastic substance at one temperature but a refractive index different from that of said thermoplastic substance at another temperature. The thermal radiation suppressor compositions exhibit good physical properties and can be employed in the form of thermoplastic sheets or films. The compositions are useful as devices in greenhouses, skylights, etc.