Abstract: Emulsion copolymerizing a particular crosslinker, i.e., either a siloxane or silazane, with an organic monomer, results in new and novel emulsions. An emulsion can be formed having particles consisting of polymer chains formed from organic monomer. Depending on the crosslinker and reaction conditions, these emulsion polymer chains can be either crosslinked or uncrosslinked. The uncrosslinked polymer chains can be crosslinked at a later point by the addition of a suitable catalyst.

Abstract: The present invention relates to compounds composed essentially of a linear, cyclic or branched polyorganosiloxane having, per molecule, at least 3 siloxy units, including at least one siloxy functional unit of formula: ##STR1## where R.sup.1 represents a C.sub.1 to C.sub.4 alkyl or phenyl radical, X contains an N,N'-di- and/or trisubstituted phenylenediamine functional group, bonded to the silicon via an Si-(hydrocarbon linking unit)-N and/or Si-(hydrocarbon linking unit)-C bond, and a is a number chosen from 0, 1 and 2. The present invention also relates to the use of such compounds as antiozonants for rubbers and in particular for rubber compositions for tires.

Abstract: A curable resin composition containing an oxyalkylene polymer having at least one silicon-containing reactive group in a molecule, and at least one compound selected from the group consisting of (1) a compound having at least one amino group and at least one trialkylsiloxy group in a molecule and (2) a silylamine derivative having at least one group with a hydroxy or hydrolyzable group bonded to the silicon atom and can be crosslinked through the formation of a siloxane bond, which provides a cured material having good adhesion properties with coatings and less residual tack.

Abstract: A moisture-curable silicone composition is prepared from (A) an organopolysiloxane resin having hydrolyzable groups associated therewith, (B) a fluorosilicone resin having residual silanol groups associated therewith, (C) a hydrolyzable organosilane and (D) a cure accelerating catalyst. The cured composition of the invention in prepared by reacting the aforementioned components (A) through (D) in the presence of moisture and results in a material exhibiting superior oil- and water-repellent properties.

Abstract: Ionomeric polymers are provided which are dispersible in aqueous solvents yet which cross-link with ethylenically unsaturated monomers to form matrices having relatively low solubility in such solvents. The polymers can be incorporated into photocurable composition for use, for example, in photocurable printing elements.

Abstract: Fibers having antimicrobial properties made from a melt-extrudable thermoplastic composition. The thermoplastic composition includes a thermoplastic polyolefin and an additive. The additive is an antimicrobial siloxane quaternary ammonium salt which can be either of two general classes: (1) a trisiloxane having a pendent quaternary ammonium group and a molecular weight of from about 600 to about 1,700; and (2) an ABA-type siloxane having a polydispersity of up to about 3.0 and a weight-average molecular weight of from about 800 to about 2,000, in which a central siloxane moiety is terminated at each end by a quaternary ammonium salt group. The anion in general can be any anion which does not adversely affect the thermal stability of the salt.

Abstract: A non-woven web having antimicrobial properties made from a melt-extrudable thermoplastic composition. The thermoplastic composition includes a thermoplastic polyolefin and an additive. The additive is an antimicrobial siloxane quaternary ammonium salt which can be either of two general classes: (1) a trisiloxane having a pendent quaternary ammonium group and a molecular weight of from about 600 to about 1,700; and (2) an ABA-type siloxane having a polydispersity of up to about 3.0 and a weight-average molecular weight of from about 800 to about 2,000, in which a central siloxane moiety is terminated at each end by a quaternary ammonium salt group. The anion in general can be any anion which does not adversely affect the thermal stability of the salt.

Abstract: A method for preparing fibers having antimicrobial properties which involves melting a melt-extrudable thermoplastic composition and extruding the molten composition through multiple orifices to form streams of molten composition which are cooled to form fibers. The thermoplastic composition includes a thermoplastic polyolefin and an additive. The additive is an antimicrobial siloxane quaternary ammonium salt which can be either of two general classes: (1) a trisiloxane having a pendent quaternary ammonium group and a molecular weight of from about 600 to about 1,700; and (2) an ABA-type siloxane having a polydispersity of up to about 3.0 and a weight-average molecular weight of from about 800 to about 2,000, in which a central siloxane moiety is terminated at each end by a quaternary ammonium salt group. The anion in general can be any anion which does not adversely affect the thermal stability of the salt.

Abstract: Curable fluoropolyether rubber composition: This composition comprises (A) a straight chain fluoropolyether compound having at least two alkenyl groups in its molecule and having a divalent perfluoropolyether structure in its backbone chain, (B) a polytetrafluoroethylene, (C) an organohydrogenpolysiloxane having at least two hydrogen atoms bonded to silicon atoms in its molecule, and (D) a hydrosilylation reaction catalyst. The composition is provided in the form of a paste capable of forming into optional shapes, and its cured product is well-balanced in and is excellent in properties such as heat resistance, chemical resistance, solvent resistance, releasability, lubricating qualities, water repellency, oil repellency and weatherability.

Abstract: A drug delivery system adapted to release an effective amount of a drug at pH values of about 1 to 7 without releasing a significant amount of the drug at pH values of about 7 and above, the system comprising a polymeric material and a drug covalently bonded to the polymeric material through a pH sensitive covalent bond capable of being cleaved in the pH range of 1 to about 7.

Abstract: The present invention relates to a sulfur-vulcanizable rubber composition mprising, by way of reinforcing filler, carbon black or a mixture of carbon black and silica, at least one functionalized diene polymer bearing at the chain end a silanol function or a polysiloxane block having a silanol end, or modified along the chain by silanol functions and at least one organosilane compound comprising an amine or imine function, which can be used for the manufacture of tires having, in particular, improved hysteresis properties.

Abstract: To provide novel silicone-modified acrylic rubber particles prepared at a high conversion without using a special polymerization plant by graft-polymerizing (B) 45 to 5,000 parts by weight of a silicone rubber precursor comprising 99.9 to 80% by weight of a low molecular weight organosiloxane, 0.1 to 10% by weight of a polyfunctional silane compound and 0 to 10% by weight of a reactive silane compound having a polymerizable unsaturated bond or a mercapto group in its molecule to (A) 100 parts by weight of acrylic rubber particles, and if necessary, thereto by graft-polymerizing (C) 0.1 to 5,000 parts by weight of an acrylic rubber precursor; graft copolymer particles of silicone-modified acrylic rubber which are prepared from the above-mentioned acrylic rubber particles and are capable of improving weather resistance and impact resistance of various thermoplastic resins; and a thermoplastic resin composition comprising the above-mentioned resin and the graft copolymer particles.

Abstract: Cross-linked controlled density polyamines which are water-insoluble and swell at pH values up to about 8 are shown. These polyamines are useful in site-specific drug delivery systems.

Abstract: A melt-extrudable composition which includes a thermoplastic polyolefin and a siloxane quatemary ammonium salt additive. The additive can be either of two general classes: (1) a trisiloxane having a pendent quatemary ammonium group and a molecular weight of from about 600 to about 1,700; and (2) an ABA-type siloxane having a polydispersity of up to about 3.0 and a weight-average molecular weight of from about 800 to about 2,000, in which a central siloxane moiety is terminated at each end by a quatemary ammonium salt group. The anion in general can be any anion which does not adversely affect the thermal stability of the salt. The siloxane quatemary ammonium salt possesses antimicrobial properties. Upon melt extruding the thermoplastic composition to form fibers and nonwoven webs, or other shaped artides, the surfaces of such shaped artides exhibit antimicrobial properties.

Abstract: A moisture curable polymer composition, which comprises (A) a polymer having at least two functional groups reactive with an isocyanate group selected from a hydroxyl group, a mercapto group and a mono-substituted or unsubstituted amino group and further at least two hydrolyzable silyl groups in the molecule, wherein the silyl groups are introduced via a urethane bond or urea bond to the functional groups, and (B) fine particles of an acrylic copolymer produced by copolymerizing an acrylic monomer having one polymerizable unsaturated group and an acrylic monomer having two or more (meth)acryloyloxy groups, wherein the fine particles of an acrylic copolymer (B) are homogeneously dispersed in the polymer (A), and a process for the production thereof. Said moisture curable polymer composition is able to give a rubber-like cured product having excellent mechanical properties, high elasticity, high toughness and excellent adhesiveness and is useful as a coating material, sealant, or adhesive.

Abstract: A coating composition containing(A) a silyl group-containing vinyl polymer which has on the polymer chain ends or side chain thereof at least one silicon atom, to which a hydrolyzable group is linked, per polymer molecule,(B) a reaction product of an aminosilane compound with an epoxy compound(C) a hydrolyzable ester compound and(D) an inorganic pigment.The coating composition of the present invention has excellent film properties such as appearance, moisture resistance and grindability and is suitable for use as an undercoating and a primer coating.

Abstract: A hemocompatible surface-modifying additive is provided for modifying polyurethane or polyurethane urea substrates. The additive has a polyurethane or polyurethane urea hard block or an alternative block which is miscible with the poly(urethane) or poly(urethane-urea) base polymer, a polysiloxane hydrophobic soft block, an optional hydrophilic spacer and a peptide selected from the group consisting of Arg-Gly-Asp, X-Arg-Gly-Asp, Arg-Gly-Asp-X and X-Arg-Gly-Asp-X', wherein X and X' are amino acids.

Abstract: This invention relates to a fluoropolymer nanocomposite comprising a fluoropolymer phase and an inorganic oxide phase dispersed throughout, said inorganic oxide phase having either no particles or particles substantially all of which have a particle size of less than about 75 nm which can be determined by small angle x-ray scattering and transmission electron microscopy techniques. These nanocomposites are useful as protective coatings.

Abstract: Compounds of formula (I) ##STR1## in which m+n is a number from 1 to 100 and n varies from zero to 90% of the sum of m+n; R.sub.1 and R.sub.3, which may be identical or different, are for example C.sub.1 -C.sub.18 alkyl or phenyl; R.sub.2 is C.sub.2 -C.sub.12 alkylene; G is for example a group of formula (IId) ##STR2## in which R.sub.5 and R.sub.6 are for example hydrogen; R.sub.4 is for example C.sub.1 -C.sub.18 alkyl; L.sub.1 has for example any one of the meanings given to R.sub.1 or is a group (R.sub.28).sub.3 SiO-- where R.sub.28 is C.sub.1 -C.sub.18 alkyl; and L.sub.2 is for example hydrogen, Na, K, C.sub.1 -C.sub.8 alkyl or a group (R.sub.28).sub.3 Si-- with R.sub.28 as defined above.The compounds of formula (I) are useful as light, heat and oxidation stabilizers for organic materials.

Abstract: There is disclosed a polyolefin composition which can be extruded at relatively high rates to provide extrudate having improved hydrophobicity, said composition comprising (A) 100 parts by weight of a thermoplastic resin; and (B) at least 1 part by weight of an interactive diorganopolysiloxane process aid, said diorganopolysiloxane having a number average molecular weight of at least 10,000.

Abstract: Resins having a group reactive with an isocyanate group on a side chain are modified with isocyanatosiloxanes. In one form, the isocyanatosiloxane is a single end isocyanatosiloxane obtained by effecting addition reaction between a single end hydrogenosiloxane and an isocyanate group-containing organic silicon compound having one isocyanate group and at least one aliphatic unsaturated hydrocarbon group. A single end isocyanatosiloxane obtained by introducing an isocyanate group into a single end primary aminosiloxane is also useful. In another form, the isocyanatosiloxane is a polyfunctional isocyanatosiloxane which is obtained by effecting addition reaction between a hydrogenosiloxane having at least two SiH groups and an isocyanate group-containing organic silicon compound having one isocyanate group and one aliphatic unsaturated hydrocarbon group.

Abstract: Described is a back-side coating formulation for a heat-sensitive recording material. The coating formulation comprises, in a liquid medium, a reaction product obtained by reacting (a) a polysiloxane compound containing at least one functional group reactive with an isocyanate group, (b) a silane coupling agent containing at least one functional group selected from a functional group reactive with an isocyanate group or an isocyanate group, and (c) a polyisocyanate. The reaction product has been obtained by conducting the reaction under the condition of R>1 or R.ltoreq.1, R being an equivalent ratio of isocyanate group(s) to group(s) reactive with isocyanate group(s) (isocyanate group(s)/group(s) reactive with isocyanate group(s)) and in the case of R.ltoreq.1, the silane coupling agent contains at least one hydrolyzable group in addition to the reactive group.

Abstract: A method of producing graft block copolymers which comprises (a) grafting a halosilane of the formulaHSiX.sub.n R.sub.3-nwherein X is halogen, R is alkyl or aryl, and n=1-3, onto a .alpha.-olefin/diene copolymer made from at least one .alpha.-olefin and at least one diene, (b) anionically polymerizing at least one anionically polymerizable monomer to form living polymer chains, and (c) reacting the products of (a) and (b) together wherein the living polymer chains react with the halosilane groups on the .alpha.-olefin/diene copolymer and are added thereto as pendant side chains.

Abstract: Cross-linked controlled density polyamines which are water-insoluble and swell at pH values up to about 8 are shown. These polyamines are useful in site-specific drug delivery systems.

Abstract: A coating composition having excellent antifogging property, good abrasion resistance, improved adhesion to the substrate and good water resistance, which comprises an epoxy functional organosilane or the hydrolysate or condensate thereof; an amino functional organosilane or the hydrolysate or condensate thereof; a hydrophilic (meth)acrylate monomer, or a copolymer of two components selected from the hydrophilic (meth)acrylate monomer, another hydrophilic monomer and an organosilane and/or a terpolymer of the three components; a curing catalyst; and, optionally, a multi-functional (meth)acrylate monomer having at least two (meth)acryl groups and a radical polymerization initiator.

Abstract: A one-package resinous coating composition, especially for automobile finishes (A) a resin having a siloxy group, and (B) a catalyst for dissociating the siloxy group. Resinous mixture (A) contains one or more of the following (A-1) through (A-4).

Abstract: A process for producing siloxane modified polyolefin copolymers and products comprising the copolymer with the following general formula: ##STR1## wherein: x=1 to 1000; m=2 to 100; n=0 to 1000; y=1 to 3, z=0 to 2, wherein (y+z)=3; and p=1 to 200; wherein each R and R.sub.1 are independently selected from the group consisting of hydrogen, alkyl groups having 1 to 6 carbons, phenyl, benzyl and alkylphenyl having from 6 to 12 carbons; R.sub.2 is selected from the group consisting of C.sub.1 to C.sub.6 alkyl, phenyl, benzyl and alkylphenyl having from 6 to 12 carbons; R.sub.3 is selected from the group consisting of hydrogen, methyl, ethyl and propyl; and Z is selected from the group consisting of O, S, NH and NR' wherein R' is selected from the group consisting of phenyl, C.sub.1 to C.sub.4 alkyl and C.sub.1 to C.sub.3 alkylphenyl.

Abstract: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer comprising a metal-nitrogen polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen and polymer combinations thereof comprising a multiplicity of sequentially bonded repeat units the compositions comprising the reaction products of the reaction mixtures, and the compositions obtained by crosslinking the reaction products of the reaction mixtures. The crosslinking may be effected through at least one of thermal-based, radiation-based free radical-based or ionic-based crosslinking mechanisms.

Abstract: Coating compositions are described. They contain, as a film-forming component, a fluoropolymer with a silane-coupling agent containing at least one free isocyanate group. The fluoropolymer may also have been modified with a reaction product of a polysiloxane or fluorine compound containing a reactive organic functional group with an organic polyisocyanate, which reaction product contains at least one free isocyanate group.

Abstract: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer comprising a metal-nitrogen polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen and polymer combinations thereof comprising a multiplicity of sequentially bonded repeat units the compositions comprising the reaction products of the reaction mixtures, and the compositions obtained by crosslinking the reaction products of the reaction mixtures. The crosslinking may be effected through at least one of thermal-based, radiation-based free radical-based or ionic-based crosslinking mechanisms.

Abstract: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: at least one of: a polymer selected from the group consisting of silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen polymers comprising a multiplicity of sequentially bonded repeat units.

Abstract: An organic polymer having at least two hydrosilyl groups in a molecule is mixed with an organic polymer having at least one alkenyl group in a molecule and a hydrosilylation catalyst to give a composition. Such composition is rapidly curable, has good depth curability and gives a cured material having good mechanical properties.

Abstract: The present invention relates to novel piperidine compounds of the formula (I) ##STR1## in which A is e.g. a group of the formula ##STR2## where R.sub.4 is e.g. hydrogen or methyl, X.sub.3 is e.g. --O-- or --NH-- and R.sub.5 ' is e.g. ethylene, propylene or decamethylene, R.sub.1 is e.g. methyl, methoxy, ethoxy or OH, R.sub.2 and R.sub.3 are e.g. methyl, m+n is e.g. a number from 1 to 40, n varies e.g. from zero to 50% of the sum m+n, X.sub.1 is e.g. as defined for R.sub.1 or is a group (CH.sub.3).sub.3 SiO-- and X.sub.2 is e.g. hydrogen, methyl, ethyl, a group (CH.sub.3).sub.3 Si-- or a group ##STR3## and, when m+n is a number from 3 to 10, X.sub.1 and X.sub.2 together also form a direct bond. The compounds of the formula (I) are effective in stabilizing an organic material against thermal, oxidative and light-induced degradation.

Abstract: A method for preparing a nonwoven web having antimicrobial properties which involves melting a melt-extrudable thermoplastic composition, extruding the molten composition through multiple orifices to form streams of molten composition, cooling the streams of molten composition to form fibers, and randomly depositing the fibers on a moving foraminous surface to form a web. The thermoplastic composition includes a thermoplastic material and an additive. The additive is an antimicrobial siloxane quaternary ammonium salt which can be either of two general classes: (1) a trisiloxane having a pendent quaternary ammonium group and a molecular weight of from about 600 to about 1,700; and (2) an ABA-type siloxane having a polydispersity of up to about 3.0 and a weight-average molecular weight of from about 800 to about 2,000, in which a central siloxane moiety is terminated at each end by a quaternary ammonium salt group.

Abstract: A chemically linkable mixture comprising(a) about 98 to 80% by weight of a fluoroelastomer bearing lateral olefinic double bonds,(b) about 2 to 20% by weight of at least one of a silicone oligomer, silicone elastomer and a fluorosilicone elastomer containing Si--H groups, and(c) a catalyst containing at least one of a noble metal and an organic peroxide.Fluororubbers made therefrom are distinguished by excellent physical properties.

Abstract: Fluoroaluminosilicate dental cement glasses are treated with an aqueous silanol treating solution and optionally with an additional organic compound. The treated glasses form cements with improved strength. The silanol can be ethylenically-unsaturated and can contain acidic groups, and, if so, is novel in its own right.

Abstract: A fuser roll having a metal core shaft has a resilient layer placed around the metal core shaft with at least the surface layer of the resilient layer comprising a fluorosilicone rubber layer containing 5 to 50 wt. % polytetrafluoroethylene. Since this fuser roll is excellent in releasability and silicone oil resistance, the durability is excellent, and the image obtained by a copying machine wherein the roll is used becomes sharp.

Abstract: The present invention relates to the preparation of polymers bearing reactive functional groups. More particularly, this invention relates to the preparation of polymers containing functional acetoacetate groups and then following the polymerization reacting the acetoacetate group with a functional amine to form an enamine.Polymers of the present invention have many uses including coatings, sealants, adhesives and saturant applications, and are most useful as solutions or dispersions in water or water-cosolvent mixtures.

Abstract: The capping of anionic polymers to make functionalized polymers is used to make heterotelechelic polymers by using a protected functional initiator to polymerize a polymer comprising a conjugated diene and then capping the polymer with low surface energy fluorocarbons. The protected functional groups are stable under a variety of conditions and then readily convert to more reactive terminal functional groups useful for making sealants, coatings, molded or extruded goods and fibers having low surface energy.

Abstract: Disclosed are denture adhesive compositions possessing improved aesthetics and comprising a component which provides for easy removal of the adhesive from the denture and a hydrophilic powder.

Abstract: There are disclosed a resin composition for coating which comprises a mixture of(i) a non-aqueous dispersion type resin containing(A) a vinyl polymer soluble in an organic solvent mainly comprising an aliphatic hydrocarbon, and(B) a vinyl polymer particle which is insoluble in the organic solvent and obtained by polymerizing a polymerizable unsaturated compound in the organic solvent using the vinyl polymer (A) as a dispersant, and(ii) a solvent type resin of(C) a vinyl polymer having a silyl group represented by the formula (I) which is soluble in the organic solvent: ##STR1## wherein R.sup.1 represents an alkyl group, an aryl group or an aralkyl group, X represents a halogen atom, an alkoxy group, an acyloxy group or a hydroxy group, and k is an integer of 1 to 3,and a paint containing the same.

Abstract: A nonlinear optical interpenetrating polymer network which can exhibit nonlinear optical properties includes a first polymer, and a second polymer interpenetrating the first polymer. At least one of the polymers includes a nonlinear optical component. A method of forming a nonlinear optical interpenetrating polymer network which can exhibit nonlinear optical properties includes combining a first prepolymer, which can react to form a first polymer, with at least one monomer which can react to form a second polymer. At least one of either the first prepolymer or the monomer include a nonlinear optical component. The nonlinear optical component is poled and the first prepolymer and the monomer, or monomers, of the second prepolymer are reacted while the nonlinear optical component is being poled.

Abstract: Essentially isocyanate-free, ketimine- and aldimine-free, one-component sealing, adhesive or coating materials which are self-curable under the action of atmospheric humidity containing a copolymer A composed of50-99.8% by weight of a C.sub.1 -C.sub.16 -alkyl (meth)acrylate or vinyl ester of carboxylic acids of 1 to 20 carbon atoms a),0.1-20% by weight of an unsaturated carboxylic anhydride b),0.1-10% by weight of an Si-containing compound c) capable of undergoing hydrolysis and0-40% by weight of a further, copolymerizable unsaturated compound d)or containing a mixture of copolymers comprising5-95% by weight, based on the mixture, of a copolymer B), composed of50-99.9% by weight of a C.sub.1 -C.sub.16 -alkyl (meth)acrylate or vinyl ester of carboxylic acids of 1 to 20 carbon atoms a),0-20% by weight of an unsaturated carboxylic anhydride b)0.

Abstract: A polymeric dispersant having a low T.sub.g polymer component, e.g. polybutadiene, and a pendant silylated group with hydrolyzable groups capable of associating with and dispersing finely divided inorganic fillers. Curable compositions containing the polymeric dispersant can be cured into composite materials having improved resistance to stress induced by thermal cycling.

Abstract: A room temperature curable organopolysiloxane composition comprising:(A) an organopolysiloxane blocked by a silanol group or hydrolyzable silyl group at a terminal end of molecular chain thereof;(B) a polymer of a monomer having an ethylenically unsaturated double bond;(C) an epoxy compound;(D) a curing agent for the component (C); and(E) a curing catalyst for the component (A). The composition exhibits extremely higher adhesive properties for adhesion to various adherends, as compared to those conventional compositions which comprise an adhesion-imparting agent such as silane coupling agents or the like.

Abstract: The present invention relates to the preparation of polymers bearing reactive functional groups. More particularly, this invention relates to the preparation of polymers containing functional acetoacetate groups and then following the polymerization reacting the acetoacetate group with a functional amine to form an enamine.Polymers of the present invention have many uses including coatings, sealants, adhesives and saturant applications, and are most useful as solutions or dispersions in water or water-cosolvent mixtures.

Abstract: This invention is to provide a liquid adhesive can be adhered and cured at a relatively low temperature and have sufficient heat resistance and reliability, etc., and an adhesive tape using the same. The liquid adhesive of this invention is obtainable by dissolving(a) a butadiene-acrylonitrile copolymer having piperazinylethylaminocarbonyl groups at both terminals and having a weight average molecular weight of 1,000-50,000, and an acrylonitrile content of 5-50% by weight, represented by the following formula (I): ##STR1## wherein, m=50-95, and n=5-50; and (b) a compound having at least two maleimide groups, the ratio of component (b) based on 100 parts by weight of component (a) being in the range of 10 to 900 parts by weight. This is applied to one or both surfaces of a heat resistant film or one surface of a release film to form an adhesive layer, thereby obtaining an adhesive tape for electronic parts.

Abstract: A curable composition suitable as top coats having an improved excellent acid resistance as well as excellent properties such as thermosetting property, appearance, water resistance, scratch resistance and weatherability, which comprises (A) a vinyl copolymer having a main chain substantially composed of a vinyl copolymer and having in its molecule both at least one hydrolyzable silyl group and at least one alcoholic hydroxyl group, (B) a silanol group-containing organopolysiloxne having at least one silanol group, and (C) a curing catalyst.

Abstract: The present invention relates to the preparation of polymers bearing reactive functional groups. More particularly, this invention relates to the preparation of polymers containing functional acetoacetate groups and then following the polymerization reacting the acetoacetate group with a functional amine to form an enamine.Polymers of the present invention have many uses including coatings, sealants, adhesives and saturant applications, and are most useful as solutions or dispersions in water or water-cosolvent mixtures.

Abstract: The capping of anionic polymers to make functionalized polymers is used to make heterotelechelic polymers by using a protected functional initiator to polymerize a polymer comprising a conjugated diene and then capping the polymer with low surface energy fluorocarbons. The protected functional groups are stable under a variety of conditions and then readily convert to more reactive terminal functional groups useful for making sealants, coatings, molded or extruded goods and fibers having low surface energy.