Abstract: The disclosure provides systems and methods for data analysis of experimental data. The analysis can include reference data that are not directly generated from the present experiment, which reference data may be values of the experimental parameters that were either provided by a user, computed by the system with input from a user, or computed by the system without using any input from a user. Another example of such reference data may be information about the instrument, such as the calibration method of the instrument.

Abstract: A novel multilayer structure in which one layer comprises a polymer comprising a solventless, waterless, melt-processable acrylonitrile olefinically unsaturated polymer and the other layer comprises an organic polymer. Either polymer can be employed as the inner layer or the outer lays component of the multilayer structure.

Abstract: A novel multilayer structure in which one layer comprises a polymer comprising a solventless, waterless, melt-processable acrylonitrile olefinically unsaturated polymer and the other layer comprises an organic polymer. Either polymer can be employed as the inner layer or the outer layer component of the multilayer structure.

Abstract: A novel composite high-nitrile fiber in which the polymers are arranged in a sheath core type configuration. One polymer of the composite filament comprises a solventless, waterless, melt-processable acrylonitrile olefinically unsaturated polymer and the other polymer of the composite filament comprises an organic polymer. Either polymer can be employed as the sheath or the core component of the composite filament.

Abstract: A novel composite high-nitrile fiber in which the polymers are arranged in a sheath core type configuration. One polymer of the composite filament contains a solventless, waterless, melt-processable acrylonitrile olefinically unsaturated polymer and the other polymer of the composite filament contains an organic polymer. Either polymer can be employed as the sheath or the core component of the composite filament.

Abstract: Disclosed are non-woven fabrics made from fibers formed from melt-processable and stable addition copolymers containing 30 to 90 weight percent acrylonitrile moiety and up to 70 weight percent methacrylonitrile moiety and optionally less than 20 weight percent moieties of other comonomers.

Abstract: A process for forming a stable and processable polymer comprised of methacrylonitrile (10 to 80 percent) and acrylonitrile (20 to 90 percent) by controlling the ratio of the monomers in the reaction mixture.

Abstract: A process for forming a stable and processable polymer comprised of methacrylonitrile (10 to 80 percent) and acrylonitrile (20 to 90 percent) by controlling the ratio of the monomers in the reaction mixture.

Abstract: Disclosed are compositions which are blends of vinylidene chloride-vinyl chloride copolymers with certain indene or 3-methylindene containing polymers.

Abstract: Disclosed are normally solid polymers that are the result of addition copolymerization of the monomers acrylonitrile, methyl methacrylate, .alpha.-methylstyrene and/or styrene, and indene in the presence of a preferred unsaturated rubbery polymer, said polymers containing 10-200 parts by weight rubbery polymer, 10-40 parts by weight acrylonitrile, 5-50 parts by weight methyl methacrylate, 5-45 parts by weight of one or both of styrene and .alpha.-methylstyrene and 4-45 parts by weight indene in the polymer structure, per 100 parts by weight of the total parts of acrylonitrile, methyl methacrylate, styrene, .alpha.-methylstyrene and indene combined in said polymer structure. Also disclosed are vinyl chloride polymers compounded therewith to increase the heat distortion temperature as well as the impact resistance.

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.

Abstract: A process for the addition of pendant groups to polyarylenes comprises the steps of charging a reaction vessel with a solution of a polyarylene and a Friedel-Crafts catalyst; said polyarylene having the formula ##STR1## adding to the reaction vessel a pendant forming group G, wherein G is selected from the group consisting of sulfonyl halides, sulfonamide halides, alkylhalides, acylhalides and phosphorus acid halides; heating the contents of the reaction vessel to form a substituted polyarylene having the formula ##STR2## and thereafter recovering the substituted polyarylene. The substituted polyarylenes are novel and have utility as a semipermeable membrane and a process for the separation of gases therewith is also provided.

Abstract: A composition comprising an intimate admixture of (a) 50 to 98 parts by weight of a vinyl chloride polymer having an inherent viscosity of at least 0.4 and (b) 50 to 2 parts by weight of an addition copolymer containing indene and one comonomer selected from acrylonitrile, methyl methacrylate and methacrylonitrile, combined in the polymer structure with indene in the amount of 31.5-70 acrylonitrile, or 37-80 methacrylonitrile, or 46-95 methyl methacrylate, all per 100 parts by weight of indene plus comonomer combined in the polymer structure.

Abstract: A composition comprising an intimate admixture of (a) 50 to 98 parts by weight of a vinyl chloride polymer having an inherent viscosity of at least 0.4, and (b) 50 to 2 parts by weight of an addition terpolymer containing acrylonitrile, indene and a third monomer selected from methyl methacrylate or at least one monomer of the group .alpha.-methylstryene and vinyl aromatics of the formula: ##STR1## where each R is independently selected from Cl, H and a C.sub.1 to C.sub.9 alkyl group and x=1 or 2, combined in the polymer structure such that(1) when the third monomer is methyl methacrylate, the polymer contains in weight percent 2-35 acrylonitrile, 10-67 indene, 5-85 methyl methacrylate, and the moles of acrylonitrile plus methyl methacrylate are equal to or more than the moles of indene,(2) when the third monomer is one of both of .alpha.

Abstract: A composition comprising an intimate admixture of(a) 50 to 98 parts by weight of chlorinated poly(vinyl chloride) and(b) 50 to 2 parts by weight of an addition tetrapolymer containing the following monomers combined in the polymer structure in the following weight percentages:______________________________________ Weight Percent ______________________________________ Acrylonitrile 15-35 Methyl methacrylate 5-45 Indene 5-45 .alpha.-methylstyrene or 5-45 styrene or a mixture of both ______________________________________Where (a) plus (b) total 100 parts by weight, and the total parts by weight of combined indene plus .alpha.-methyl styrene plus styrene in the tetrapolymer (b) is 38-70 parts by weight.

Abstract: A process for the addition of pendant groups to polyarylenes comprises the steps of charging a reaction vessel with a solution of a polyarylene and a Friedel-Crafts catalysts; said polyarylene having the formula ##STR1## adding to the reaction vessel a pendant forming group G, wherein G is selected from the group consisting of sulfonyl halides, sulfonamide halides, alkylhalides, acylhalides and phosphorus acid halides; heating the contents of the reaction vessel to form a substituted polyarylene having the formula ##STR2## and thereafter recovering the substituted polyarylene. The substituted polyarylenes are novel and have utility as a semipermeable membrane and a process for the separation of gases therewith is also provided.

Abstract: Semipermeable membranes useful for separating mixtures of ethanol and water into enriched fractions of each are prepared by cross-linking 50-90 weight percent of at least one polymer containing pendent, adjacent carboxy groups with 10-50 weight percent of at least one diamine. Membranes prepared from copolymers of maleic anhydride and styrene cross-linked with a polyoxyalkylene diamine are exemplary. These membranes are also useful in gas separation processes, such as separating oxygen from nitrogen.

Abstract: Normally solid copolymers that are the result of addition polymerization of methyl methacrylate and indene, containing the monomers combined in the polymer structure in the following weight percentages:______________________________________ Weight Percent ______________________________________ Methyl methacrylate 46-95 Indene 54-5.

Abstract: Low viscosity, random tetrapolymers that are the result of addition polymerization of the monomers acrylonitrile, methyl methacrylate, .alpha.-methylstyrene and/or styrene, and indene, containing the monomers combined in the polymer structure in the following weight percentages:______________________________________ Weight Percent ______________________________________ Acrylonitrile 10-40 Methyl methacrylate 5-50 Indene 3-50 .alpha.-methylstyrene or 5-50 styrene or a mixture of both ______________________________________wherein said tetrapolymers have an inherent viscosity in the range from 0.08 to 0.4 deciliters per gram of polymer solution.

Abstract: A composition comprising an intimate admixture of(a) 50 to 98 parts by weight of a vinyl chloride polymer having an inherent viscosity of at least 0.4 and(b) 50 to 2 parts by weight of a random addition tetrapolymer containing the following monomers combined in the polymer structure in the following weight percentages:______________________________________ Weight Percent ______________________________________ Acrylonitrile 15-35 Methyl methacrylate 5-45 Indene 5-45 .alpha.-methylstyrene or 5-45 styrene or a mixture of both ______________________________________where (a) plus (b) total 100 parts by weight, and the total parts by weight of combined indene plus .alpha.-methyl styrene plus styrene in the tetrapolymer (b) is 38-70 parts by weight.