Abstract: Chemical modification of crystalline poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne is disclosed. There is provided a chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 12 chlorine atoms per repeat unit. The chlorinated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by a Fourier transform infrared (FTIR) spectrum including peaks at about 745.+-.5, 798.+-.5, and 851.+-.5 cm.sup.-1. There is also provided a nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne having at least 2 nitro groups per repeat unit. The nitrated poly-1,6-di-(N-carbazolyl)-2,4-hexadiyne of the invention is characterized by an FTIR spectrum including absorption at about 1511.+-.5, 1342.+-.5, 794.+-.5, 751.+-.5, and 718.+-.5 cm.sup.-1.

Abstract: The process for preparing novel monomers and polymers by reaction of a bicyclic amide acetal with an imide compound at a temperature in the range of from about 0.degree. C. to 250.degree. C. is disclosed.

Abstract: UV absorbing compounds, susceptible to free-radical polymerization, of the formula ##STR1## wherein R is alkyl having from 4 to 12 carbon atoms of which not more than 6 are present in a linear chain, and in particular2-(2'-hydroxy-3'-methacrylamidomethyl-5'-tert-octylphenyl)benzotriazole, and polymers thereof.

Abstract: Highly conjugated, soluble polymers are prepared by ring opening polymerization of cyclobutenes of the formula: ##STR1## where R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are individually selected from H, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, phenyl or R.sub.3 and R.sub.4 are combined into a divalent CR.sup.5, O, N=R or S group where R.sup.5 is H, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms with a mild ring opening olefin metathesis catalyst such as a metal carbene. Random copolymers or block copolymers may also be prepared with comonomers capable of olefin metathesis polymerization such as norbornene or cyclopentene.

Abstract: Novel acrylic adhesive compositions are prepared comprising an acrylic or substituted acrylic monomer and a normal poyimide or polyisomide bis-acetylene additive.

Abstract: Highly electrically conductive copolymers of pyrroles and alkynes and/or aromatics, which possess good mechanical properties coupled with a well-balanced spectrum of properties, are prepared by anodic polymerization of the pyrroles and alkynes and/or aromatics in a polar solvent in the presence of a suitable conductive salt.

Abstract: Polyimido-ester compounds having the formula RO-C(O)-R.sub.1 -C(O)-OR are disclosed wherein R is an alkylene N-dicarboximido radical containing cycloolefinic unsaturation and R.sub.1 is the divalent residue of an unsaturated polycarboxylic acid such as fumaric, itaconic, aconitic, mesaconic, or glutaconic acid. These compounds are blended with unsaturated resins such as unsaturated polyester resin or vinyl ester resin, and polymerizable unsaturated monomers such as styrene to provide thermosettable resin compositions which can be cured to provide castings or laminates with improved resistance to thermal aging.

Abstract: The polymer chain comprises(a) one or more monomers possessing a nematogenic, chiral or smectogenic group, or a mixture of monomers possessing a nematogenic group with those possessing a chiral group, and(b) one or more monomers possessing a radical of a pleochroic dye, and the nematogenic, the chiral and the smectogenic groups are bonded to the polymerizable group either directly or, like the dye radicals, via a spacer.The polymers can be used, together with low molecular weight liquid crystals or liquid crystal mixtures, in electrooptical displays.

Abstract: A broad class of polymers which mimic the NAD--NADH.sub.2 couple is disclosed. These polymeric pseudohydrogenases may be used to asymmetrically reduce many types of carbonyl, thiocarbonyl, and imino groups in either a batch or continuous process, with the absolute configuration of the resulting optically active product predictable from the known absolute configuration of the chiral polymer.

Abstract: A broad class of polymers which mimic the NAD-NADHCN couple is disclosed. These polymeric pseudocyanotransferases may be used to effect asymmetric hydrocyanation of many types of carbonyl, thiocarbonyl, and imino groups in either a batch or continuous process, with the absolute configuration of the resulting optically active product predictable from the known absolute configuration of the chiral polymer.

Abstract: UV absorbing compounds, susceptible to free-radical polymerization, of the formula ##STR1## wherein R is alkyl having from 4 to 12 carbon atoms of which not more than 6 are present in a linear chain, and in particular 2-(2'-hydroxy-3'-methacrylamidomethyl-5'-tert-octylphenyl)benzotriazole, and polymers thereof.

Abstract: Photographic elements and diffusion transfer assemblages described which contain a novel mordant comprising a polymeric backbone having appended thereto nitrogen-coordinating ligands having the formula: ##STR1## wherein D.sup.1, D.sup.2, and D.sup.3 each independently represents the atoms necessary to complete an aromatic heterocyclic nucleus having at least one ring of 5 to 7 atoms.In a preferred embodiment, the mordant comprises recurring units having the formula: ##STR2## wherein: R.sup.1 and R.sup.2 each independently represents hydrogen or an alkyl or substituted alkyl group having from 1 to about 6 carbon atoms;Link represents a bivalent linking group; andLIG represents a nitrogen-coordinating ligand as described above.

Abstract: Crosslinked polymers which can be obtained by heating imides of the formula I ##STR1## in which E is allyl or methallyl, G is hydrogen or methyl, R is hydrogen, alkyl, alkenyl, cycloalkyl, aryl, benzyl, alkylene or arylene and n is 1 or 2, in the presence of a catalyst suitable for cationic polymerization. The use of the catalyst makes it possible to carry out curing at relatively low temperatures and within short reaction times. The polymers can be used, in particular, for the preparation of heat-resistant composite materials and they can also be used as electrical insulating materials and whirl-sintered powder paints.

Abstract: A solventless prepolymer which is liquid at room temperature and cures at about 350.degree. F. The novel prepolymer is formed from a rubber monomer; acrylonitrile or methacrylonitrile; and an ether derivative of methylol acrylamide. The ether is formed from methylol acrylamide and an alcohol which boils above the cure temperature of the prepolymer and which preferably is hexyl carbitol. The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight of the prepolymer less than about 25,000. The prepolymer is heat curable to form a solid polymer with excellent compression set, tensile strength, and fuel resistivity. The method of formulating these polymers is also disclosed.

Abstract: A heat curable, solventless liquid prepolymer is prepared from a rubber monomer; a nitrile monomer such as acrylonitrile or methacrylonitrile; and a novel monomer having the following formula: ##STR1## The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight less than about 25,000. This low viscosity prepolymer is heat curable to form a solid rubber polymer suitable for use as a gasket.

Abstract: Novel benzimidazolyl compounds which are basic compounds and have high polymerizability are disclosed. The basic compound of the present invention is prepared by reacting a vinylbenzaldehyde with an o-phenylenediamine compound, and can be used, for example, as a monomer for polymers. The benzimidazolylstyrene compounds are readily homopolymerized or copolymerized to provide linear homopolymers, linear copolymers or cross-linked copolymers having pendant benzimidazolylphenyl groups. These polymers have greater resistance to oxidation and chemicals than the homologues, and are useful as ion exchange resins, and as extractants of metals.

Abstract: Novel curing compositions are prepared comprising an acrylic or substituted acrylic monomer and a normal polyimide or polyisoimide bis-acetylene additive.

Abstract: A heat curable, solventless liquid prepolymer formed from an N-(R-oxymethyl) acrylamide; a rubber monomer such as isoprene, butadiene or alkyl esters of acrylic acid; and a nitrile monomer such as acrylonitrile or methacrylonitrile. The prepolymer is formed with sufficient chain transfer agent to establish a weight average molecular weight which is less than about 25,000. The prepolymer is heat curable to form a solid polymer with excellent compression set, tensile strength and fuel resistance. The method of formulating these polymers is also disclosed.

Abstract: Described herein are water soluble acrylamide containing polymers having an intrinsic viscosity of at least about 15 dl/g. These polymers are suitable for use in water purification.

Abstract: Ultraviolet light absorbing polymer compositions comprising copolymers of 2-Hydroxy-5-acrylyloxyphenyl-2H-benzotriazoles with one or more other monomers copolymerizable therewith, particularly acrylic monomers are useful in the manufacture of occular devices, particularly intraoccular lenses and contact lenses. Polymers of the disclosed benzotriazoles may be added to other organic materials to impart ultraviolet absorbing properties thereo.

Abstract: Benzotriazole compounds having the formula ##STR1## wherein A represents a hydrogen atom or an acetyl group; R.sup.1 represents vinyl, ethyl or a haloethyl group; R.sup.2 represents a C.sub.1-4 alkyl group and n is 1 or 2. The R.sub.2.sup.2 groups need not be identical and a homopolymer or copolymers thereof which are effective as an ultraviolet absorber.

Abstract: Photographic elements and diffusion transfer assemblages are described which contain a novel polymeric mordant comprising recurring units having the formula ##STR1## wherein A represents recurring units derived from an .alpha.,.beta.-ethylenically unsaturated monomer;B represents recurring units derived from a monomer containing at least two ethylenically unsaturated groups;QN.sup..sym. represents a moiety containing a quaternized nitrogen group;R.sup.1 represents an alkoxy group having from 1 to about 8 carbon atoms or an alkylenedioxy group having from 1 to about 4 carbon atoms, the group being appended to an aromatic group of A;R.sup.2 represents an alkoxy group having from 1 to about 8 carbon atoms or an alkylenedioxy group having from 1 to about 4 carbon atoms, the group being appended to an aromatic group of QN.sup..sym.

Abstract: A negative working resist composition and medium for microlithographic recording comprises a vinyl polymer having aromatic quaternized nitrogen-containing pendant groups. The resist undergoes a transformation from high to low solubility in polar solvents such as water or low molecular weight alcohols upon exposure to electron beams, ultraviolet light, or X-rays. A method for patterning substrates by employing the resist composition is also disclosed.

Abstract: Tridimensional cross-linked random copolymers, insoluble in water, containing in copolymerized form: (a) 25% to 98% by weight of N-[tris(hydroxymethyl)methyl]acrylamide or N-[tris(hydroxymethyl)methyl]methacrylamide, or a mixture of these two compounds. (b) 2% to 50% by weight of one or more monomers containing two or several polymerizable ethylenic double bonds and free from anionic or cationic functional groups, and (c) 0.1% to 50% by weight of one or more monomers containing a polymerizable ethylenic double bond and one or more mono- or di-substituted amino, pyrimidinyl, guanidyl, purinyl, quaternary ammonium, SO.sub.3 H or SO.sub.3 M groups, M being an alkali metal. These copolymers are utilizable, in the form of aqueous gels, as ion exchangers.

Abstract: Low N-vinyl lactam content copolymers are cross-linked with resonance free di(alkene tertiary amine) cyclic compounds to obtain biomedical devices, including soft contact lenses, which have good oxygen permeability and mechanical properties.

Abstract: N-vinyl lactam monomers and comonomers are cross-linked with resonance free di(alkene tertiary amine) cyclic compounds to obtain biomedical devices, including contact lenses, which have high oxygen permeability and good mechanical properties.

Abstract: The compositions described herein comprise polyimides having bis-maleimide terminal groups and having the formula: ##STR1## wherein Q is a trivalent aromatic radical, Ar is a divalent aromatic radical, Ar" is a tetravalent aromatic radical and n has a value of 0-20. Derivatives may be made of these compounds by homopolymerization, copolymerization with other copolymerizable materials and by reaction with Diels-Alder reactable materials.

Abstract: A process for the preparation of electrically conductive polymers by polymerizing acenaphthylene, N-vinyl-heterocyclics, eg. N-vinylcarbazole or N-vinylpyridine, or N,N-divinylaniline at from -80.degree. to +100.degree. C. in the presence of a cationtic catalyst, wherein from 1 to 50 percent by weight of an oxidizing Lewis acid, preferably FeCl.sub.3, FeBr.sub.3, SbCl.sub.5, SbF.sub.5, AsF.sub.5 or CF.sub.3 -SO.sub.3 H, or a combination of AlCl.sub.3 or TiCl.sub.4 with the said compounds or with CrO.sub.3 or OsO.sub.4 is used as the catalyst. In a preferred embodiment of the process, thin films of the monomers to be polymerized, applied to glass or to a polymeric base, preferably to a plastic film, are treated with gaseous SbCl.sub.5, SbF.sub.5 or AsF.sub.5.

Abstract: Novel polyimides, optionally end-capped with polymerizable or inert groups, and the polyamic acid or ester intermediates thereof are prepared by reacting a tetracarboxylic acid compound (e.g. pyromellitic dianhydride or 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride or its methyl diester) with diamines having the general formula ##STR1## wherein Z is oxygen or sulfur, X and/or Y are carbonyl or carbinol groups, the amine groups may be in the 2-, 3-, and/or 4-position, and isomerism is present when X and/or Y is a carbinol group. The polyimides may be end-capped by reaction, during or after their formation, with polymerizable groups such as 3-aminophenyl acetylene or 3,6-endomethylene-1,2,3,6-tetrahydrophthalic anhydride. The diamines are novel classes of amines when Z is sulfur and when Z is oxygen and X, Y, or X and Y are carbinol groups.

Abstract: A polymeric composition comprised of a mixture of an acetylene-terminated polymer and an hydroxy-substituted, polynuclear, aromatic derivative as a cure retarding additive.

Abstract: A benzotriazole compound of the formula: ##STR1## wherein A is hydrogen or acetyl; R.sup.2 is a C.sub.1 -C.sub.4 alkyl group and n is 1 or 2.

Abstract: Oxy- and thio-aryl-phenylated aromatic heterocyclic polymers having the general formula ##STR1## wherein Ar is a monovalent aromatic radical containing an oxy- or thio-linkage, Ar' is a divalent aromatic radical, R is a monovalent aromatic radical, Z is a divalent heterocyclic radical and n is an integer equal to the number of repeating units, are prepared from biscyclopentadienones with diethynyl heterocyclic compounds.

Abstract: Poly(phenylquinoxaline) prepolymers containing pendant phenylethynyl and ethynyl groups are disclosed along with the process for forming these polymers. Novel monomers and the process for producing same that are employed to prepare the novel polymers are also disclosed.

Abstract: A composition of matter comprising an acetylene-terminated polyimide oligomer and a cure rate inhibitor selected from the group consisting of hydroquinone, maleic acid, glutaric acid, dibetanapthyl para-phenylene diamine. The composition has a retarded cure rate, thereby facilitating the fabrication of void-free molded objects and composites.

Abstract: A moisture resistant polyimide adhesive is disclosed comprising a polymer having repeating units of the formula: ##STR1## where n is equal to about 8 to about 20. The improved moisture resistance of the polymers according to the present invention is indicated by a moisture pick-up of less than about 0.6% by weight after 24 hour immersion in room temperature water. The polymer also exhibits a tensile strength greater than about 1800 psi (1.24.times.10.sup.7 NT/M.sup.2). In addition to their improved adhesive and moisture resistant properties, the polymers according to the present invention exhibited such properties with cure times of less than about one hour at temperatures up to about 320.degree. C.

Abstract: A water soluble addition copolymer is formed by reaction admixing a monomer having a pendant vinyl group attached to at least one ring structure selected from the group consisting of nitrogen containing heterocyclic ring structures and aromatic ring structures and their mixtures, and a monomer selected from the group consisting of maleic anhydride, fumaronitrile, tetracyanoethylene, maleimide and their mixtures, where such addition copolymer can be used alone, as curable an insulating coating composition, or can be added to a resin, to form a curable resinous insulating coating composition.

Abstract: Novel compositions comprising acetylenic polyhemi-amic acid compositions and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide acetylenic amide groups having terminal .dbd.C.tbd.CH groups as hemi-amic acid groups of their derivatives. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing acetylenic amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.

Abstract: This invention relates to copolymerizable ultraviolet light absorber compounds having the formula: ##STR1## where R is alkylene, C.sub.1 -C.sub.10, oxyalkylene, C.sub.1 -C.sub.10, alkyleneoxyalkylene, C.sub.1 -C.sub.10 or phenylene, C.sub.1 -C.sub.10, unsubstituted or substituted with hydroxy;R' and R" are independently hydrogen or alkyl; C.sub.1 -C.sub.6 ; andR"' is hydrogen or alkyl, C.sub.1 -C.sub.6.

Abstract: Novel compositions comprising polymerization products of polyimide derivatives having terminal acetylenic amide groups and processes for their preparation are disclosed herein. These new compositions are primarily polymers of derivatives of anhydride-terminated aromatic polyimides from which these derivatives are prepared by amidation to provide acetylenic amide groups having terminal --C.tbd.CH groups as hemi-amic acid groups or their derivatives. These derivative compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures and in accordance with the practice of this invention to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are polymers from monomeric compounds containing acetylenic amide groups derived from monomeric tetracarboxylic dianhydrides.

Abstract: A photographic element comprises a support having thereon a layer containing a novel polymer comprising a recurring unit having the formula: ##STR1## said element comprising a source of metal ions. The elements are useful in diffusion transfer processes, and particularly useful with chelating dyes or dye-forming materials to provide a metallized dye image.

Abstract: Novel compositions comprising unsaturated polyimide-polyamides and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.

Abstract: Novel compositions comprising acetylenic polyimide-polyamides and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide acetylenic amide groups having terminal --C.dbd.CH groups. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing acetylenic amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.

Abstract: Novel compositions comprising unsaturated polyhemi-amic acid compositions and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups as hemi-amic acid groups or their derivatives. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.

Abstract: The products of the invention are partial acetylene end-capped oligomers which have the structure as shown in FIG. 3 in which terminal R" group is derived from a mixture consisting of about 14-40 mol % of an aromatic monoamine and the balance an acetylene substituted aromatic monoamine. The products are prepared from either of two (2) precursors. The first precursor has the structure shown in FIG. 2. The second precursor is a complex amine salt having the structure shown in FIG. 5.

Abstract: Novel compositions comprising polymerization products of polyimide derivatives having unsaturated amide groups and processes for their preparation are disclosed herein. These new compositions are primarily polymers of derivatives of anhydride-terminated aromatic polyimides from which these derivatives are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups as hemi-amic acid groups or their derivatives. These derivative compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures and in accordance with the practive of this invention to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are polymers from monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides.

Abstract: An ultraviolet light sensitive polymer composition wherein resistance to photodegradation is enhanced by the inclusion therein of a stabilizer polymer having structural units corresponding to the following formula ##STR1## wherein R.sub.a, R.sub.b, and R.sub.

Abstract: Novel polymers are disclosed which are based on an ethylenically unsaturated monomer containing at least one azide group and another ethylenically unsaturated silane monomer. These materials are useful as coupling agents for thermoformable polymers such as polyolefins and inorganic fillers. Optionally the polymers can contain other ethylenically unsaturated monomers as spacers or extenders for the more expensive azide or silane monomers.

Abstract: Copolymeric compounds which carry side N-heterocyclic rings and contain the recurring structural unit of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 are hydrogen and R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.4 is a N-heterocyclic substituent, their preparation and their use as light stabilizers and UV absorbers in organic material and also the organic material stabilized with the aid of these compounds.

Abstract: Improved diimide and polyimide oligomers containing phenylacetylene terminal groups have been produced which melt at low temperatures and are curable into useful laminating resins, molding compounds and matrix resins. These oligomers are analogous to diimides and polyimides made from conventional dianhydrides, such as benzophenonetetracarboxylic dianhydride or pyromellitic dianhydride.

Abstract: A photopolymerizable mixture for the preparation of printing plates and photoresists is disclosed which contains a polymeric binder, an ethylenically unsaturated polymerizable compound and, as a photoinitiator, a compound having the formula ##STR1## wherein R is an aromatic group which may be substituted and n is 1 or 2.