Abstract: Thermosetting resin compositions with low shrinkage are provided, which when molded show low shrinkage rates, good dimensional stability (little cracking or warping), and excellent surface smoothness, mechanical strength, and dispersion stability.The thermosetting resin compositions with low shrinkage in accordance with the present invention comprise:(a) 100 wt. parts by weight thermosetting resins, and(b) 3 to 200 parts by weight polycarbonates containing constituent units derived from aromatic dihydroxy compounds.The polycarbonates preferably have at least 5% (of all the terminal groups) terminal hydroxyl groups derived from aromatic dihydroxy compounds. The polycarbonates also preferably have an intrinsic viscosity of 0.05 to 0.65 dL/g.

Abstract: A thermosettable resin composition is prepared by admixing a liquid mixture of thermosettable resins such as a polyepoxide and amorphous thermoplastic polymer particles such as a polyetherimide to form a homogeneous cured resin composition. The particles have an average diameter of from 0.5-50 micrometers, a surface area of at least 1.0 m.sup.2 /g, a dissolution temperature of at least 50.degree. C., and are essentially insoluble in the thermosettable resin at temperatures of up to 15.degree. C. below the dissolution temperature but are completely dissolved at a temperature of at least 20.degree. C. below the cure temperature of the resin.

Abstract: Reworkable adhesive that has a high shear strength through a range of use temperatures but which has a low strength and is reworkable at a suitable processing temperature.

Abstract: A thermoplastic composition which comprises a siloxane polycarbonate block copolymer wherein the polysiloxane segments of the copolymer are of the formula: ##STR1## where R.sup.1, R.sup.2, Y, D, A, X, A' and E are as defined herein, and high heat polycarbonates containing recurring or repeating polycarbonate units of the formula: ##STR2## wherein Z is --O--, --N(R.sup.3)-- or a mixture thereof and R.sup.3 is selected from hydrogen, hydrocarbyl and halogen-substituted hydrocarbyl.

Abstract: Polyester polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a hydroxyalkyl cyclic carbonate with ammonia, ammonium hydroxide, or a primary amine to form a dihydric alcohol having a carbamate group appended thereto,(b) reacting the dihydric alcohol from (a) and a cyclic anhydride to form a half-ester diacid having a carbamate group appended thereto, and(c) reacting a mixture comprising the half-ester diacid from step (b) and a polyol to form a polyester having carbamate groups appended thereto.

Abstract: A grafted aromatic polycarbonate resin is produced by melt-kneading a graft precursor comprising a mixture of 35 to 95% by weight of aromatic polycarbonate resin particles and 65 to 5% by weight of vinylic copolymer containing active oxygen, the vinylic copolymer being present in the aromatic polycarbonate resin particles, thereby subjecting to grafting reaction of the aromatic polycarbonate resin and the vinylic copolymer, where the grafting reaction can be sufficiently carried out and thus the grafted polycarbonate resin is useful for molding materials for optical disks, optical lenses, etc. a polymer blend-compatible agent, adhesives, paints, etc.

Abstract: Disclosed is a process for producing a grafted polycarbonate resin for optical use, which comprises adding to an aqueous suspension of an aromatic polycarbonate resin having radical-polymerizable unsaturated terminal group on a molecule wherein the aromatic polycarbonate resin has an average particle diameter of 0.1 to 5 mm and an apparent density of 0.2 to 0.9 g/cm.sup.3, a vinyl monomer and a radical-polymerization initiator, heating the aqueous suspension at a lower temperature by 5.degree. C. to 20.degree. C. than the decomposition temperature for a half-life period of 10 hours of the radical-polymerization initiator, thereby impregnating the polycarbonate resin with the vinyl monomer and the radical-polymerization initiator, then elevating the temperature to the range of from a lower temperature by 50.degree. C. to a higher temperature by 30.degree. C.

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: The invention provides a low gloss polymer blend comprising an aromatic carbonate without reactive groups, a polymer or copolymer having a reactive epoxygroup and an aromatic carbonate polymer or copolymer having a reactive group which react with the epoxy group. Optionally, the composition may contain further usual compounds, such as polymeric materials which are normally used to modify the mechanical properties of polycarbonate, particularly rubbery or non-rubbery polymeric materials containing units of a styrene; also additives like colorants, flame retarding agents may be routinely incorporated.

Abstract: The present invention relates to a process for the preparation of a thermoplastic resin composite comprising conducting polycondensation of a monomer material in a solution of an organic solvent containing an organic solvent soluble polymer to form an aromatic condensation polymer which is insoluble in said organic solvent and a thermoplastic resin composite prepared by the process.

Abstract: Novel polyamide copolymers having skeletons of a specific structure are disclosed. The polyamide copolymers have excellent resistance to hydrolysis, low temperature characteristics (low temperature softness), heat aging resistance and mechanical properties as compared to conventional polyamide copolymers. The polyamide copolymers also show excellent efficiencies in fabrication properties and transparency. In particular, the polyamide copolymers having a branched structure in the molecule thereof provide good results.

Abstract: The reaction of less than the stoichiometric amount of a methoxymethyl aminotriazine with a linear, hydroxyl-terminated polyester in a mixture of the two wherein the polyester to triazine ratio is from about 97:3 to about 70:30 by weight affords a storage stable coating powder which forms an attractive, pin hole-free film when fused on a substrate at thicknesses of from about 3.9 to about 6.8 mils.

Abstract: The present invention discloses a polycarbonate modification method wherein a polycarbonate resin having (a) a carbon-carbon double bond, and (b) at least one group selected from the group consisting of --C(.dbd.O)--Cl, --C(.dbd.O)--Br, --C(.dbd.O)--OH, --OH, --O--C(.dbd.O)--Cl and --O--C(.dbd.O)--Br, is melt-kneaded in the presence of a radical initiator. Polycarbonate resins prepared according to the present method retain the desirable properties associated with polycarbonates while exhibiting decreased surface gloss.

Abstract: A thermosettable resin composition having a viscosity that decreases during processing temperatures and increases as the temperature is raised to curing temperatures is provided The composition comprises thermosettable resins and thermoplastic particles that are insoluble in the thermosettable resins at processing temperatures but soluble in the thermosettable resins at curing temperatures. Prepregs prepared from the thermosettable resin composition are also provided.

Abstract: Provided are polymers containing methine linkages. Also provided are shaped or formed articles comprised of the light absorbing polymers either alone or admixed with other thermoplastic polymers to form a light absorbing thermoplastic polymer composition.

Abstract: A molding composition containing a blend of polycarbonate resin and a small amount of an aromatic dicyanate ester is disclosed. In comparison to the performance of the unmodified polycarbonate resin, the transparent composition of the invention exhibits a significantly reduced dripping rate upon burning. The composition is suitable for the preparation of thermoplastically molded articles.

Abstract: Flame retarded plastic composition are described, comprising a polycarbonate and a flame-retardant additive selected from pentabromobenzyl-monoacrylate, tribromostyrene and tribromophenyl maleimide, and their mixtures. The flame-retardant polycarbonates so obtained retain excellent transparency.

Abstract: The cyclized carbonate of an amino aromatic acid, such as isatoic anhydride, or an acrylic acid halide, such as acryloyl chloride have been found useful in functionalizing hydroxy terminated polycarbonates.

Abstract: Novel amino acid-derived polycarbonates and amino acid-derived diphenol compound starting materials from which the polycarbonates are polymerized. Polymer blends of the amino acid-derived polycarbonates with polyiminocarbonates prepared from identical amino acid-derived diphenol starting materials.

Abstract: A process is provided for making poly(carbonate-siloxanes). The process involves melt mixing polycarbonate resin and an amount of a secondary amine functional siloxane to produce a polycarbonate-siloxane copolymer. The process is useful for producing a copolymer resin that can be used as resin for making molded articles.

Abstract: This invention relates to binary thermoplastic polyblend that comprises a thermoplastic aromatic polycarbonate and a polycaprolactone polyol-based thermoplastic polyurethane (TPU). The polyblends exhibit improved hydrocarbon solvent resistance and melt flow properties.

Abstract: Polyetherpolycarbonatediols are composed essentially ofA) from 3 to 63.7 mol % of units derived from a polyoxytetramethylenediol,B) from 63.7 to 3 mol % of units derived from a polyoxy-C.sub.2 -C.sub.8 -alkylenediol other than A), an aliphatic alkanediol of from 2 to 14 carbon atoms, an alicyclic alkanediol of from 3 to 14 carbon atoms or an alkylene oxide of 2 to 3 carbon atoms, or a mixture thereof, andC) from 33.3 to 50 mol % of units derived from phosgene, a dialkyl carbonate having C.sub.1 -C.sub.4 -alkyl groups or a cyclic carbonate having C.sub.2 -C.sub.4 -alkylene bridges, or a mixture thereof.

Abstract: A process is disclosed for the production of bio-compatible polyurethane, proceeding from cyclo aliphatic diisocyanate and macrodiol, which are reacted into a pre-adduct that is then chain lengthened with a mixture of the lower-molecular diol and a macrodiol. The so-obtained polyurethane displays high resistance in human and animal bodies and is suitable for the manufacture of catheters, blood pumps, heart valves, as well as bio-compatible lacquers and coatings.

Abstract: Biocidally active surface coating compositions have excellent resistance to attack by algae, fungi, and other microorganisms and have high activity against the deposition of biota. The surface coatings exhibit antimicrobial activity against a broad range of microoganisms when bonded to a variety of surfaces. The active chemical is not removed from these surfaces even after repeated washing with water or submerging the surfaces in water for an extended period of time. This antimicrobial activity is not attributed to a slow release of the active ingredient, but rather to the active non-leachable surface. The active quaternary ammonium compounds in monomeric forms have the structural formulas as follows: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 each represents an unsubstituted or substituted alkyl or hydroxalkyl group or a derivative thereof having from 1 to 20 carbon atoms; Y represents hydrogen, an unsubstituted or substituted alkyl group, or a derivative thereof having up to 10 carbon atoms; and X.sup.

Abstract: Ester-modified poly(alkylene carbonate) polyahls comprising the residues of at least one polyahl, polyalkyleneoxy moieties, poly(alkylene carbonate) moieties, the residues of at least one ester of a carboxylic acid, and a plurality of active hydrogen end group are disclosed. The ester-modified poly(alkylene carbonate) polyahl has a number average molecular weight higher than the number average molecular weight of any known poly(alkylene carbonate) polyahl comprising the same monomeric components. Also disclosed are isocyanate-functional prepolymers of these ester-modified poly(alkylene carbonate) polyahls formed by reactions of the ester-modified poly(alkylene carbonate) polyahls of this invention with excess organic polyisocyanates. Urethane/urea polymers formed by the reactions of the isocyanate-functional prepolymers with polyahls are also disclosed.

Abstract: The present invention is directed to novel surface active copolymers and the use thereof in the production of polyurethane powders. More particularly, the copolymers comprise have a substantially linear structure and are obtained by copolymerization ofA) a partial reaction product of1) (meth)acrylic acid or a derivative thereof and2) a macromolecular compound substituted by at least two functional groups selected from OH and NH.sub.2, the functional groups not reacted with Al) being irreversibly blocked, withB) a urethane of 1) a long-chain alkyl isocyanate and 2) a hydroxyalkyl (meth)acrylate.

Abstract: Blocked amine terminated polycarbonate is provided which can be used to form anhydride terminated polycarbonates, or copolymers with various functionalized organic polymers. A blocked amino phenol, such as N-t-butoxycarbonyl tyramine can be used as a chain stopper under interfacial conditions to chain stop polycarbonate. The t-butoxycarbonyl can be removed by melt processing the polycarbonate to yield an amine end group which can be reacted with other polymers or with an organic dianhydride to form anhydride terminated polycarbonate. The anhydride terminated polycarbonates can be used to form copolymers with amine terminated polyamides.

Abstract: A process for the preparation of poly(aryl ether) block copolymers with polycarbonates and/or polyarylates comprising the steps ofa) reacting a hydroxy-terminated poly(aryl ether) with a high molecular weight aromatic polycarbonate, or a high molecular weight polyarylate, or a high molecular weight poly(arylatecarbonate) to yield a block copolymer; followed byb) coupling the material obtained in step a) under poly(aryl ether) forming conditions via the hydroxyl/activated dihalobenzenoid compound, or the hydroxyl/activated dinitrobenzenoid compound polycondensation processis described.The polymerization is preferably performed in an integrated manner starting with the poly(aryl ether)-forming monomers and using a polar aprotic solvent. Materials with an overall excellent combination of properties are obtained.

Abstract: Thermoplastic branched polycarbonate resins are prepared by equilibration of linear aromatic polycarbonate with polyhydric phenol having more than two hydroxy groups in the presence of a catalyst.In another aspect of the invention, thermoplastic branched polycarbonate resins are prepared by equlibration of branched aromatic polycarbonate with polyhydric phenol having more than two hydroxy groups per molecule, preferably 1,1,1-tris-(4-hydroxyphenyl)ethane, in the presence of a carbonate equilibration catalyst, preferably tetrabutylammonium tetraphenylborate.

Abstract: Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Abstract: A heat-curable resin mixture comprises(A) a polyfunctional aromatic cyanic ester,(B) a monofunctional aromatic cyanic ester,(C) a thermoplastic polymer,(D) an optional bismaleimide,(E) an optional epoxy resin.

Abstract: An improved resinous blend having good impact properties and solvent resistance comprising an aromatic carbonate polymer, a polyacetal and a thermoplastic polyurethane.

Abstract: Branched polycarbonates are prepared by the reaction of at least one polyepoxy compound, preferably triglycidyl isocyanurate, with at least one carboxylic acid-terminated polycarbonate, preferably of the type prepared by employing t-butyl p-hydroxybenzoate as a chainstopper in an interfacial polycarbonate formation reaction followed by thermal elimination of isobutene. The branched polycarbonates have high melt viscosities and high complex viscosity ratios, and are particularly useful in such operations as blow molding.

Abstract: Polyalkyloxazoline-polycarbonate-polyalkyloxazoline triblock copolymers are prepared by a novel process, and are useful as compatibilizing agents in polycarbonate/polyamide resin blends.

Abstract: Modified poly(alkylene carbonate) polyahls comprising the residue of at least one polyahl, at least one modifier, poly(alkyleneoxy) units, poly(alkylene carbonate) units, and a plurality of active hydrogen end groups are disclosed. The modified polyahls have an average molecular weight higher than any known polyahls containing at least the same weight percent modifier and the same poly(alkyleneoxy) and poly(alkylene carbonate) residues. Also disclosed are isocyanate-functional prepolymer compositions of these modified poly(alkylene carbonate) polyahls, which contain the residue of at least one modified poly(alkylene carbonate) polyahl of this invention and excess organic polyisocyanate units. Urethane/urea polymers formed by the reactions of the isocyanate-functional prepolymers with polyahls are also disclosed.

Abstract: An aromatic polycarbonate containing at least one terminal group represented by the formula ##STR1## wherein R and R' are the same or different and are alkyl, aryl or halogen; a and b are the same or different and are zero or an integer of one to four; W is 0, S, SO, SO.sub.2, CH.sub.2, CHR or CR.sub.2 wherein R is identified above: ##STR2## Preferably a and b are the same or different and are zero or one, more preferably each is zero. W is CH.sub.2, CHR or CR.sub.2.

Abstract: A resin composition comprising (a) 100 parts by weight of a block copolymer composed of polyphenylene sulfide segments and polyphenylene sulfide sulfone segments and (b) 0.01 to 20 parts by weight of at least one compound selected from the group consisting of epoxy resins, maleimide compounds, N,N'-diarylcarbodiimide compounds and organosilane compounds and as required, (c) an organic filler.

Abstract: Compositions containing sulfuric acid and one or more of certain chalcogen-containing compounds in which the chalcogen compound/H.sub.2 SO.sub.4 molar ratio is below 2 contain the mono-adduct of sulfuric acid whci is catalytically active for promoting organic chemical reactions. Suitable chalcogen-containing compounds have the empirical formula ##STR1## wherein X is a chalcogen, each of R.sub.1 and R.sub.2 is independently selected from hydrogen, NR.sub.3 R.sub.4, and NR.sub.5, at least one of R.sub.1 and R.sub.2 is other than hydrogen, each of R.sub.3 and R.sub.4 is hydrogen or a monovalent organic radical, and R.sub.5 is a divalent organic radical. Such compositions are useful for catalyzing organic reactions such as oxidation, oxidative addition, reduction, reductive addition, esterification, transesterification, hydrogenation, isomerication (including racemization of optical isomers), alkylation, polymerization, demetallization of organometallics, nitration, Friedel-Crafts reactions, and hydrolysis.

Abstract: A composition comprising an aromatic carbonate polymer end-capped with a group of the structure ##STR1## wherein --+NR.sub.1 R.sub.2 R.sub.3 is meta or para to the O and R.sub.1, R.sub.2 and R.sub.3 are the same or different and are alkyl of one to three carbon atoms; R is alkyl of one to six carbon atoms, perfluoroalkyl of one to eight carbon atoms, inclusive, phenyl or phenyl substituted with one to three substituents. These substituents can be any of the ordinary substituents which are essentially inert to reaction conditions, such as alkyl, cycloalkyl, alkoxy, phenyl, halo, trifluoromethyl and the like. The alkyl or alkyl group of the alkoxy is generally from one to six carbon atoms, inclusive, branched or normal. Generally, electronegative groups such as fluoro, chloro, bromo and trifluoromethyl are preferred.

Abstract: Disclosed are colored compositions useful for molding into articles such as food containers, beverage bottles, cured structural plastics and the like comprising condensation polymer having reacted therewith or copolymerized therein a coloring amount of the residue of a colorant compound having the formula; ##STR1## wherein R.sup.1 is ##STR2## carbonyl halide or an unsubstituted or substituted carbocyclic or hetrocyclic aryl radical;R.sup.2 is hydrogen or an unsubstituted or substituted alkyl or acyl radical;R.sup.3 is any of the substituents which R.sup.1 may represent; andA.sup.1 and A.sup.2 each is the residue of a fused benzene ring; whereinR.sup.4 is hydrogen, allyl or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical; andR.sup.5 is hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical; provided the colorant compound bears at least one substituent that is reactive with one of the monomers from which the condensation polymer is derived.

Abstract: A resin composition of the invention, exhibiting the anisotropism when melted, comprises (1) a resin having rigid structure and exhibiting the anisotropism when melted and (2) a resin having a rigid structure portion and a soft structure portion, both resins having been uniformly mixed with each other.

Abstract: Polycyanate esters of polyhydric phenols are cured with a liquid solution of a metal acetylacetonate in an alkylphenol. Such cured compositions are useful in structural composites, transfer molded-encapsulants, filmed structural adhesives and printed wiring boards.

Abstract: Novel curable resin compositions are disclosed containing an aromatic cyanate ester and an allyl ether of a bisphenol as a modifier. These compositions provide improved prepregs and composites. Additional modifiers including epoxy resins and bismaleimides may be included.

Abstract: A solution of a non-reactive polymer in a liquid oxazoline which may include a reactive additive such as a polyisocyanate to provide solid polymers by interpolymerization of the oxazoline and reactive additive are described.

Abstract: Copolycarbonates are prepared by ring-opening cyclic polycarbonate oligomers with various nucleophilic polymers. The latter include "living" anionic vinyl polymers; polymers such as polyphenylene ethers or hydroxyaryl-terminated polyimides which contain deprotonated hydroxy or carboxy groups; polymers containing neutral nucleophilic moieties, such as secondary amine-terminated polyimides, polyethersulfones and polyetherketones; and anionic polymers of ring-opened compounds such as cyclic polysiloxanes, lactams and lactones.

Abstract: Fluid compositions capable of crosslinking in ambient humidity to form elastomeric products are disclosed, comprising:(A) an elastomeric aliphatic polycarbonate;(B) an organic compound containing at least two N.dbd.C< groups, selected from bisketimines, bisketiminoenamines and bisketiminosilazanes;(C) a tertiary amine with stress nitrogen bonded to a ketiminic carbon atom, preferably a bicyclic ketimine.

Abstract: Compositions containing sulfuric acid and one or more of certain chalcogen-containing compounds in which the chalcogen compound/H.sub.2 SO.sub.4 molar ratio is below 2 contain the mono-adduct of sulfuric acid which is catalytically active for promoting organic chemical reactions. Suitable chalcogen-containing compounds have the empirical formula ##STR1## wherein X is a chalcogen, each of R.sub.1 and R.sub.2 is independently selected from hydrogen, NR.sub.3 R.sub.4, and NR.sub.5, at least one of R.sub.1 and R.sub.2 is other than hydrogen, each of R.sub.3 and R.sub.4 is hydrogen or a monovalent organic radical, and R.sub.5 is a divalent organic radical. Such compositions are useful for catalyzing organic reactions such as oxidation, oxidative addition, reduction, reductive addition, esterification, transesterification, hydrogenation, isomerication (including racemization of optical isomers), alkylation, polymerization, demetallization of organometallics, nitration, Friedel-Crafts reactions, and hydrolysis.

Abstract: A processor for the preparation of urea condensates and the preparation of heat-curable surface coatings.To prepare these urea condensates, primary di- and/or polyamine is reacted with urea, a secondary monoamine and a polyalcohol which contains certain groups at elevated temperatures and in the presence or absence of a catalyst, and the ammonia formed is separated off.These urea condensates are suitable as binder components in heat-curable surface coatings, in particular for heat-curable cathodic electrocoating finishes.

Abstract: This invention relates to moldable polycarbonate compositions and in particular to moldable polycarbonates which have ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl)sulfone (TMBS) and 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A) dihaloformate, or ordered, alternating repeating units derived from bis-(3,5-dimethyl-4-hydroxyphenyl) sulfone (TMBS) dihaloformate and a bisphenol compound such as 2,2-bis-(4-hydroxyphenyl)propane (Bisphenol A). Such polycarbonate exhibit improved hydrolytic stability and also excellent processability in molding applications.

Abstract: A process for the modification of alkyl halogenated polyarylenes with a derivative compound comprising the steps of forming a mixture of the derivative compound with a phase transfer catalyst, wherein the derivative compound has the formulaH--Z or M--Tand Z is derived from a compound selected from the group consisting of water or alcohols, thiols, amines, iminos and imides containing at least one O, N or S atom bonded to the H, M is Na or K and T is derived from a compound selected from the group consisting of cyanides, iminos, imides, carboxyls and hydroxyl; combining the mixture with the alkyl halogenated polyarylene in an organic solvent to form a second mixture; agitating the second mixture until the desired degree of substitution has taken place and thereafter separating the modified polyarylene which contains a Z or a T group.