Abstract: The invention relates to a process for the production of high molecular weight, crystalline, aromatic polyether ketones showing high temperature stability, high resistance to the effect of chemicals and good mechanical properties.

Abstract: Polyaryl ether ketones essentially consist of(A) 55-95 mol % of repeating units of the general formula ##STR1## where s and t are each 0, 1, 2 or 3 and Q and T are each --O-- or --CO--, or their C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 alkoxy, aryl, chlorine or fluorine derivatives substituted in the nucleus, and(B) 5-45 mol % of repeating units of the general formula II ##STR2## where Ar.sup.1, Ar.sup.2, Ar.sup.3, ar.sup.4 and Ar.sup.5 independently of one another are each a phenylene, biphenylene or naphthylene group or a C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, aryl, chlorine or fluorine derivative of this group, Q' and T' are each --O--or --CO-- and s' and t' are each 0, 1, 2 or 3, with the proviso that one or more of the groups Ar.sup.1, Ar.sup.2, Ar.sup.3, Ar.sup.4 and Ar.sup.5 are a biphenylene or naphthylene group or a C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, aryl, chlorine or fluorine derivative of such a group and, if Ar.sup.

Abstract: A method is provided for stabilizing a poly(arylene ether ketone), comprising the steps of:(a) digesting the poly(arylene ether ketone) in an aqueous medium to remove polymerization solvent, and(b) hydrothermally treating the poly(arylene ether ketone) by heating it to a temperature of at least 160.degree. C. while contacting it with water.

Abstract: Aryl ether ketones of the general formula I ##STR1## where n is from 0 to 5,X is ##STR2## and Y is tert-butyl, acetyl, benzyl, benzoyl, tert-butoxycarbonyl or, in the case of n=0, H,and the ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivatives thereof are useful for preparing highly heat-resistant polyaryl ether ketones.

Abstract: A method of preparing a poly(arylene ether ketone) having a repeat unit ##STR1## comprising polymerizing a monomer system comprising (I) a monomer of the formula ##STR2## and (II) a monomer of the formula ##STR3## wherein R.sup.1 is p-phenylene, m-phenylene, or 4,4'-biphenylene;R.sup.2 is p-phenylene, m-phenylene, biphenylene, or naphthylidene; andX is a group displaceable under Friedel-Crafts polymerization conditions;in a polymerization medium comprising(a) a Lewis base present in an amount between about 0.05 and about 2 equivalents per equivalent of acid halide groups present in the monomer system and(b) a Lewis acid present in an amount of at least one equivalent per equivalent of carbonyl groups present, plus an equivalent per equivalent of Lewis base present, plus an amount effective to act as a catalyst for the polymerization.

Abstract: In the present invention disclosed are high-molecular-weight, soluble, thermoplastic branched polycarbonates endowed with improved properties, and suitable to blow-moulding fabrication.Such polycarbonates are characterized by the presence, in their structure, of units deriving from the following double-ring aromatic compounds: ##STR1## wherein R.sub.1 indicates H, --COCL, --SO.sub.2 Cl; R.sub.2, R.sub.3 and R.sub.4, equal to or different from each other, indicate --COCl or SO.sub.2 Cl.The above-said compounds are directly used in the syntheses.

Abstract: In the present invention disclosed are high-molecular-weight, soluble, thermoplastic branched polycarbonates endowed with improved properties, and suitable to blow-moulding fabrication.Such polycarbonates are characterized by the presence, in their structure, of units deriving from the following single-ring aromatic compounds: ##STR1## wherein R.sub.1 indicates H, --COCl, --SO.sub.2 Cl; R.sub.2, and R.sub.3, equal to or different from each other, indicate --COCl or SO.sub.2 Cl.The above-said compounds are directly used in the syntheses.

Abstract: Secondary amine-terminated aromatic oligomers are prepared by conventional reactions for the formation of such polymers as polyimides, polyethersulfones and polyetherketones, using such compounds as methylamino or phenylamino anilines or phenols as endcapping agents. The secondary amine-terminated oligomers may be reacted with cyclic polycarbonate oligomers to prepare copolyurethanecarbonates which are useful as engineering thermoplastics.

Abstract: Described herein is a process for stabilizing a poly(aryl ether ketone) produced by a Friedel-Crafts polymerization process which comprises adding a nucleophilic and/or an electrophilic capping agent during the polymerization.

Abstract: Described herein is an improved process for preparing poly(aryl ether ketone)s by reacting a mixture of at least one bisphenol and at least one dihalobenzenoid compound or halophenol, wherein the improvement comprises providing to the reaction, a combination of sodium carbonate and/or bicarbonate and an alkali metal halide selected from potassium, rubidium or cesium fluoride or chloride, or combinations thereof.

Abstract: A process for producing aromatic ketone-sulfone copolymers which comprises polymerizing appropriate monomers by a Friedel-Crafts polymerization reaction using a Lewis acid catalyst. A controlling agent such as a Lewis base is added to the reaction medium. The reaction medium comprises, for example, aluminum trichloride as the Lewis acid, an organic Lewis base such as N,N-dimethylformamide or an inorganic Lewis base such as sodium or lithium chloride as the controlling agent, and a diluent such as methylene chloride or 1,2-dichloroethane. The amount of Lewis acid, the amount of Lewis base, the temperature of the reaction and the monomer to diluent molar ratio are varied depending on the monomer system to obtain melt-processable, high molecular weight, substantially linear polymers, for example prepared from copolymerization of p-phenoxybenzoyl chloride and p-phenoxybenzenesulfonyl chloride or of terephthaloyl chloride, 1,4-benzenedisulfonyl chloride and diphenyl ether, or of like monomers.

Abstract: Certain water-soluble polymers retain their viscosities in high brine environments and are highly useful as surfactant-mobility control agents in oil recovery processes. These polymers have stiff backbone chains which are poly-2,6-dimethyl-p-phenylene oxide, polysulfone or poly(p-phenylene ether-sulfone) and side chains which may be formed by halomethylating phenyl rings of these backbone chains followed by quaternizing the halomethyl groups. For more thickening power, the molecular weight of the polymer can be increased by controlled cross-linking with a calculated amount of difunctional amine.

Abstract: High-temperature coating materials are prepared by cross-linking copolymers of oligomers produced by nickel catalyzed coupling of unsubstituted aryl polyhalides with substituted organic halides.

Abstract: Described herein is an integrated process for the preparation of substantially linear high molecular weight thermoplastic polymers derived from aryl polyhalide monomers. Aryl polyhalide monomers are first prepared by the reaction of an alkali metal salt of a phenol compound, e.g., dipotassium salt of bisphenol A, with a dihalobenzenoid compound, e.g., 4,4'-dichlorophenylsulfone, in a liquid phase of an aprotic solvent and an azeotrope former, e.g., toluene. Water is removed from the reaction mass as an azeotrope until substantially anhydrous conditions are attained. The aryl polyhalide monomers are then coupled by contacting the monomers with a catalyst mixture of a nickel compound and a ligand in the presence of a reducing metal, e.g., zinc, and an aprotic solvent under substantially anhydrous conditions to form substantially linear high molecular weight thermoplastic polymers.

Abstract: Poly(arylene ketones) are prepared by the reaction of difunctional aromatic compounds with derivatives of thio- or dithiocarbonic acids in the presence of a superacid catalyst system. In a preferred embodiment, diphenyl ether reacts with S-methyl chlorothioformate in HF/BF.sub.3 to produce poly(p-phenyleneoxy-p-phenylene carbonyl), i.e.

Abstract: The present invention relates to a process for the preparation of thermoplastic, aromatic polycarbonates which contain structural units of the formulae 1 and/or 2 ##STR1## in which R denotes C.sub.1 -C.sub.3 -alkyl, preferably CH.sub.3, andX denotes a single bond, C.sub.1 -C.sub.5 -alkylene, C.sub.2 -C.sub.5 -alkylidene, cyclohexylene, cyclohexylidene, --O-- or --S--.

Abstract: The present invention relates to the novel monomers generically identified as bis(4-hydroxyphenyl sulfonylphenyl) biphenyl disulfones, to a process for their production and to their use in the preparation of polycarbonates, polyurethanes, polyesters, polysulfones and polyethers.

Abstract: Aromatic polyethersulphones that are particularly useful as adhesives and coatings having end groups of formula --OCH.sub.2 COR, where R is alkyl or alkoxy. Preferred examples are --OCH.sub.2 COCH.sub.3 and --OCH.sub.2 COOC.sub.2 H.sub.5. Such polymers may be made by heating polyethersulphones made from halophenates or bisphenate/dihalide mixtures, in the presence of a reagent of formula XCH.sub.2 COR (X is halogen, preferably chlorine), such as chloroacetone or ethyl chloroacetate, for a short period of time. Such polymers of molecular weight (RV<0.25) are of particular use in coating compositions comprising a dispersion of a fluorocarbon polymer dispersed in a solution or dispersion of the polyethersulphone.

Abstract: An interfacial polymerization process for preparing high molecular weight aromatic polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of certain non-cyclic polyamines or salts of non-cyclic polyamines.

Abstract: An interfacial polymerization process for preparing high molecular weight aromatic polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of certain cyclic di- or triamines or salts of cyclic di- or triamines.

Abstract: An interfacial polymerization process for preparing high molecular weight aromatic polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of certain sterically hindered secondary amines or their salts.

Abstract: An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a substituted pyridine or a salt of a substituted pyridine.

Abstract: An interfacial polymerization process for preparing high molecular weight aromatic polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a 5 to 8 membered heterocyclic compound which contains only carbon and nitrogen atoms in the ring and further characterized in that the ring contains at least two nitrogen atoms and at least one carbon atom, and in that the ring is aromatic in character and contains a maximum amount of olefinic unsaturation.

Abstract: An interfacial polymerization process for preparing high molecular weight polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a sterically hindered heterocycloaliphatic secondary amine or a salt thereof.

Abstract: An interfacial polymerization process for preparing high molecular weight aromatic polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a cyclic amidine.

Abstract: An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a compound selected from pyrroles and pyrrole salts.

Abstract: Oligomers of hydroxy terminated polysulfones are extended to high molecular weight polysulfones by carbonate, ester, ether or silyl ether linkages.

Abstract: A polyarylethersulphone copolymer which is a hydrophilic sulphonated copolymer derived by controllably sulphonating a copolymer having the repeat unit of formula ##STR1## together with the repeat unit B of formula ##STR2## substantially all the units A being sulphonated after sulphonation and substantially all the units B remaining non-sulphonated after sulphonation. The sulphonation is effected using 98% w/w sulphuric acid.

Abstract: A linear aryl sulfide/sulfonate polymer having improved thermal stability is provided consisting essentially of units of the formula: ##STR1## wherein n is an integer of from 3 to about 250.

Abstract: An interfacial polymerization process for preparing high molecular weight polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of an iminoether or its salt.

Abstract: A polyaryletherketone polymer which is a hydrophilic sulphonated polymer derived by controllably sulphonating a polymer having the repeat unit of formula ##STR1## alone or in conjunction with the repeat unit of formula ##STR2## the latter units, if present, remaining substantially non-sulphonated after sulphonation. The sulphonation may be effected using 98% w/w concentrated sulphuric acid.

Abstract: An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a nitrogen-containing crown-cyclic compound.

Abstract: An interfacial polymerization process for preparing high molecular weight polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a non-cyclic amidine.

Abstract: An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of certain cyclic iminoethers or their salts.

Abstract: An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of a cyclic isourea compound.

Abstract: An interfacial polymerization process for preparing high molecular weight aromatic polycarbonates by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of an amino amidine or amino guanidine.

Abstract: An interfacial polymerization process for preparing a high molecular weight aromatic carbonate polymer by reacting a dihydric phenol with a carbonate precursor in the presence of a catalytic amount of an isourea compound.

Abstract: A polymer of the general formula: R'--M--Ar--B--Ar'--MArBAr'--.sub.k-2 M--Ar--B--Ar'--R wherein M and D, which can be the same or different, are independently ##STR1## wherein each Ar is independentlyR'--M--Ar--D--Ar'[--MArDAr'--].sub.k-2 M--Ar--D--Ar'--R"wherein L is ##STR2## phenyleneoxy, ##STR3## a covalent bond or T, wherein T is as defined belowand each Ar' is independently ##STR4## wherein T is O, S, phenyleneoxy, or --CR.sub.2 -- wherein R is as defined below, or --O--Ar--O-- wherein Ar can have any of the values set forth above and wherein R' and R" are independently ##STR5## wherein X is a covalent bond, --O--, --S--, or --CR.sub.2 -- wherein each R is independently hydrogen, an alkyl or fluoroalkyl group, preferably of 1 to 10 carbons, phenyl or an electron withdrawing group substituted phenyl, Y is CN, NO.sub.2, ##STR6## or if X is a covalent bond, Y can be hydrogen as well as any of the foregoing; or Ar"CO-- or Ar"SO.sub.

Abstract: In a Friedel-Crafts catalyzed polymerization reaction, said reaction being selected from the group consisting ofn(X--A--X)+n(H--B--H).fwdarw.2n-1HX+X(AB).sub.n Hwherein A is ##STR1## and wherein X is halogen, hydroxy, or alkoxy, and wherein R is alkylene, aryl substituted alkylene, arylene or substituted arylene, or polynuclear aromatic either fused ring or joined by one or more bridging groups such as oxygen, sulfur or a moiety of the structure ##STR2## wherein Z is propylidene, CO, SO.sub.2, or a chemical bond and wherein B is arylene or substructured arylene, or polynuclear aromatic either fused ring or joined by one or more bridging groups such as CO, oxygen, sulfur or a moiety of the structure ##STR3## wherein Z is as defined above, and wherein n is the degree of polymerization and is at least about 5 andn(XDH).fwdarw..sub.n-1 HX+X(D).sub.n Hwherein X is as defined above and wherein D is CO--B-- or --SO.sub.

Abstract: The molecular weight of highly aromatic polymers made by the Friedel-Crafts polymerization of EN monomers of the formula Ar--L--Ar.sup.1 --X, wherein X is selected from SO.sub.2 Y or COY, Y being a radical selected from --OH, halogen, or alkyl, wherein Ar and Ar.sup.1 are independently ##STR1## wherein L is --CO--, --SO.sub.2 --, phenyleneoxy, --NHCO--, a covalent bond, --O--, or --CR.sub.2 --, wherein each R is independently hydrogen, an alkyl or fluoroalkyl group, phenyl or a phenyl group substituted by an electron withdrawing group such as halogen, NO.sub.2 or --CN, is controlled by including in the reaction mixture an acylatable aromatic compound whose rate of acylation under Friedel-Crafts conditions is at least about 150 times that of benzene. The molecular weight of other polymers made from EN type monomers by Friedel-Crafts catalysis can also be controlled in this way.

Abstract: Thermally resistant thermoset polymers are formed by heating a thermosetting aromatic prepolymer having at least two pendant alkynyl groups, e.g., a thermosetting prepolymer represented by the formula: ##STR1## The resulting thermoset polymers are sufficiently resistant to heat to be usefully employed as engine parts in the internal combustion engines of automobiles and the like.

Abstract: A semipermeable membrane of a polyaryl ether sulfone having repeating units of the formula, ##STR1## wherein Ar.sup.1 and Ar.sup.2 independently represent ##STR2## wherein X, Y and Z independently represents an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a chlorine atom or a bromine atom; and l, m and n independently represent zero or an integer of 1 to 4, andhaving a contact angle of its surface to water of at most 65.degree..

Abstract: A semipermeable membrane composed of a water-insoluble, membrane-forming polymer (hereinafter referred to as "polymer (II)") which is obtained by partially converting the hydroxyl groups of a polymer represented by the following formula (hereinafter referred to as "polymer (I)"): ##STR1## wherein R and R' are halogen, nitro, methyl or ethyl, X stands for a divalent group selected from methylene, ethylene, isopropylidene, ether (--O--), carbonyl (--CO--), sulfide (--S--), sulfoxide (--SO--) and sulfone (--SO.sub.2 --), l and m are integers of from 0 to 4, p is 0 or 1, and n is an integer of from 100 to 1000,to sulfuric acid groups or alkali metal, ammonium or nitrogen-containing basic organic compound salts thereof.

Abstract: Phenols of the formula I ##STR1## wherein n has a value from 1 to 15, each ofR.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently is a hydrogen atom, a C.sub.1 -C.sub.18 -alkyl group, an aryl group, a C.sub.5 -C.sub.12 -cycloalkyl group or a C.sub.7 -C.sub.13 -aralkyl group,R.sub.5 is a hydrogen atom or a C.sub.1 -C.sub.18 -alkyl group,Y is a carbonyl, thiocarbonyl, sulphinyl, sulphonyl, P(OR.sub.7), --P(.dbd.O)(OR.sub.7)--, --P(.dbd.O)(R.sub.7)-- or --P(R.sub.7)-- group, andR.sub.6 is a radical --CHR.sub.8 --CHR.sub.9 --S--CR.sub.10 R.sub.11 R.sub.12, wherein each of R.sub.8 and R.sub.9 independently is a hydrogen atom or a C.sub.1 -C.sub.6 -alkyl group, R.sub.10 is a hydrogen atom, a C.sub.1 -C.sub.19 -alkyl group, a C.sub.2 -C.sub.4 -alkenyl group or an aryl group, R.sub.11 is a hydrogen atom or a methyl group and R.sub.12 is a hydrogen atom or a methyl group, or, if R.sub.11 is a hydrogen atom, is a C.sub.2 -C.sub.6 -alkyl group, or, if R.sub.10 is a hydrogen atom, R.sub.11 and R.sub.

Abstract: The present invention relates to the preparation of aromatic polycarbonates, by the two-phase interface process, from diphenols, preferably from halogen-free diphenols, characterized in that aromatic monosulphonic acid chlorides are used as chain stoppers in amounts of about 2 mol % to 20 mol %, preferably in amounts of about 2.5 mol % to 10 mol %, relative to mols of the diphenols employed. In addition, the present invention relates to the aromatic polycarbonates obtainable by the process according to the invention.

Abstract: The present invention is concerned with polyalkylene terephthalate molding compositions which have improved crystallization behavior as a result of blending with selected sulphonic acid esters. The addition of an effective amount of these esters, generally between about 0.5 to 30 wt. %, improves the rate of crystallization of polyalkylene terephthalates such as polyethylene terephthalate thus permitting the use of shorter mold residence and lower mold temperatures in injection molding.The invention is also concerned with a process for improving the crystallization behavior of polyalkylene terephthalates by melt blending them with selected sulphonic acid esters.

Abstract: High molecular weight polyether-sulfones are prepared by reacting a 3,3',5,5'-tetraalkyl-4,4'-dihydroxybiphenyl with 4,4'-dihalodiphenyl sulfone and from about 0 to 30 percent stoichiometric excess of an alkali metal carbonate or bicarbonate compound in the presence of a dipolar aprotic solvent. The polyethersulfone polymers and products made therefrom possess low density and high glass transition temperatures while maintaining good solvent resistance and good tensile, flexural, and hardness properties.

Abstract: Phenols of the formula I ##STR1## wherein N HAS A VALUE FROM 1 TO 15,Each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently is a hydrogen atom, a C.sub.1 -C.sub.18 -alkyl group, an aryl group, a C.sub.5 -C.sub.12 -cyclo-alkyl group or a C.sub.7 -C.sub.13 -aralkyl group,R.sub.5 is a hydrogen atom or a C.sub.1 -C.sub.18 -alkyl group,Y is a carbonyl, thiocarbonyl, sulphinyl, sulphonyl, --P(OR.sub.7)--P(.dbd.O)(OR.sub.7)--, --P(.dbd.O)(R.sub.7)-- or --P(R.sub.7)-- group, and R.sub.6 is a radical --CHR.sub.8 --CHR.sub.9 --S--CR.sub.10 R.sub.11 R.sub.12, wherein each of R.sub.8 and R.sub.9 independently is a hydrogen atom or a C.sub.1 -C.sub.6 -alkyl group, R.sub.10 is a hydrogen atom, a C.sub.1 -C.sub.19 -alkyl group, a C.sub.2 -C.sub.4 -alkenyl group or an aryl group, R.sub.11 is a hydrogen atom or a methyl group and R.sub.12 is a hydrogen atom or a methyl group, or, if R.sub.11 is a hydrogen atom, is a C.sub.2 -C.sub.6 -alkyl group, or, if R.sub.10 is a hydrogen atom, R.sub.11 and R.sub.

Abstract: Aromatic polyetherketones and/or sulphones are produced by heating a halophenol of formula ##STR1## where X = halogen and is ortho or para to Q; Q = --CO-- or --SO.sub.2 --, Ar = an aromatic radical, with about 1/2 mole of a granular alkali metal carbonate per mole of halophenol in the presence of N-methyl pyrrolidone, dimethyl sulphone or an aromatic sulphone solvent at 200.degree.-400.degree. C.

Abstract: Process for the separation of a polyetherketone from the reaction product resulting from the nucleophilic polycondensation of (i) at least one alkali metal bisphenate with at least one dihalo compound, and/or (ii) at least one alkali metal halophenate, in an aromatic sulphone solvent of formula ##STR1## in which Y is a direct link, oxygen, or a pair of hydrogen atoms, and Z and Z' are hydrogen atoms or phenyl groups, comprising finely dividing the solidified reaction product, leaching out alkali metal halide with water and then heating the resultant finely divided material to a temperature of at least 200.degree. C but below its melting point under a vacuum to remove the water and aromatic sulphone by distillation.