Abstract: Matrices for electrokinetic and chromatographic separations, based on a unique class of mono- and disubstituted (on the amido nitrogen) acrylamides (e.g., acrylamido-N-ethoxy ethanol, acrylamido-N,N-diethoxy ethanol) off erthe following advantages: a) strong resistance to the alkaline hydrolysis (most zone separations occurring at basic pH values); b) a high hydrophilicity; and c) greater porosity, due to the larger M.sub.r value of the monomers. Such matrices can be prepared as `chemically crosslinked` gels or as `physical` gels, the latter consisting of strings of monofunctional monomer in the absence of crosslinker, at concentrations above the entanglement threshold. It is moreover possible to further increment the gel porosity by polymerizing it in the presence of laterally aggregating agents (e.g., polyethylene glycol of M.sub.r 6-20,000 Da), thus obtaining matrices which allow better resolution of large M.sub.

Abstract: Elastomeric copolymer obtained by the polymerization of:a) a monomer selected from those having general formula CH.sub.2 .dbd.CR'--CO--OR, wherein R is a monofunctional radical selected from linear or branched C.sub.1 -C.sub.6 alkyl radicals;b) (meth)acrylonitrile;c) a third monomer selected from:c1) a chlorinated vinyl ester;c2) a mixture of an unsaturated carboxylic acid and an aliphatic or aromatic diepoxy compound;c3) a mixture consisting of a chlorinated vinyl ester and an unsaturated carboxylic acid.

Abstract: This invention relates to a reactive diluent mixture employed in a free radical polymerization of film-forming monomers which comprises between about 25 and about 90 wt. % N-vinyl lactam containing 6 to 9 carbon atoms and between about 10 and about 75 wt. % of a non-cyclic vinyl amide having from 3 to 7 carbon atoms which is employed in a concentration of between about 10 and about 50 wt. % based on total film forming monomers.

Abstract: Crosslinked, absorbent pressure sensitive adhesive compositions are disclosed comprising an acrylate or methacrylate ester of an alcohol, a hydrophilic alkylene oxide acrylate, a hydrophilic N-vinyl lactam, and an effective amount of a crosslinking agent. The compositions have an enhanced skin adhesion profile and are moderately absorbent. Also disclosed are precursor adhesive compositions and low-profile wound dressings.

Abstract: Disclosed is an improved process for polymerization of tetrahydrofuran to prepare poly(tetrahydrofuran) products with a MW range of 200 to 5000 and a dispersity of <2, which comprises premixing a carboxylic anhydride, such as, for example acetic anhydride and a dealuminated Y-zeolite and subsequently adding tetrahydrofuran at a temperature below 100.degree. C., wherein the order of addition of reactants is critical and the yield is improved by premixing the acetic anhydride and zeolite and then adding tetrahydrofuran.

Abstract: The invention relates to pressure-sensitive adhesive (PSA) structured bead, which has a distinct morphology, which is comprised of a copolymer which is characterized as aa two-phase system wherein more rigid, thermoplastic segments (hydrophilic segments formed from the polymerization of water soluble monomer in the water-in-oil emulsion particles) provide discrete reinforcing micro-domains within a predominating continuous matrix formed by rubbery, viscoelastic polymer segments (formed from the polymerization of the ester and the polar monomer). The invention also relates to a method of making the beads via a polymerization of a water-in-oil emulsion in a water suspension.

Abstract: A method of preparing a polymerizate from a reactant monomer of prepolymer which undergoes shrinkage during the formation of said polymerizate which comprises reacting said reactant monomer or prepolymer in the presence of a monomer selected from the group consisting of: ##STR1## wherein R.sub.1 -R.sub.8 are as defined herein to form a polymerizate containgin said reactant monomer or prepolymer as chemically contained constituents thereof, and resinous compositions and composites as well as polymers polymerized from such monomers or prepolymers.

Abstract: Azo dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where D is the radical of a heterocyclic diazo component,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, and R.sup.2 may also be C.sub.1 -C.sub.4 -alkanoylamino,R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl or C.sub.3 -C.sub.4 -alkenyl,R.sup.4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine,R.sup.5 is hydrogen or deuterium,Y.sup.1 and Y.sup.2 are each substituted or unsubstituted C.sub.2 -C.sub.10 -alkylene,W is oxygen, imino or C.sub.1 -C.sub.4 -alkylimino, andX is hydroxyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, phenoxy, amino or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino,and have an average molecular weight of from 1,000 to 100,000.

Abstract: The present invention relates to olefinically unsaturated, urethane group-containing isocyanates which are prepared by reacting at an NCO/OH equivalent ratio of 4 to 40a) an isocyanate component substantially containing urethane group-free cycloaliphatic diisocyanates withb) an unsaturated alcohol component substantially containing monohydric olefinically unsaturated alcoholsand subsequently removing distillable unreacted isocyanates by distillation. The present invention also relates to a process for the preparation of these isocyanates and to their use as a binder component in one-component, coating compositions which may be cured at room temperature.

Abstract: The present invention relates to bis-imidazolyl compounds of the formula: ##STR1## and polymers having the above-identified bis-imidazolyl compounds as a polymerizable unit. The present invention further relates to a method for scavenging trace quantities of metal ions from various effluents sources using the polymers of the instant invention. The instant invention also is directed to the use of the above-identified polymers as corrosion inhibiting agents and as a film for use in gel electrophoresis.

Abstract: The invention relates to a process for preparing ketene acetals by dehydrohalogenation of 2-haloaldehyde acetals. If the 2-haloaldehyde acetal is open chain, the dehydrohalogenation is carried out in the presence of an alkali metal hydroxide or alkaline earth metal hydroxide and a phase transfer catalyst and/or a secondary or tertiary alcohol or a secondary or tertiary diol. If the 2-haloaldehyde acetals is cyclic, the dehydrohalogenation is carried out in the presence of an alkali metal hydroxide or alkaline earth metal hydroxide and a phase transfer catalyst and with or without a secondary or tertiary alcohol or a secondary or tertiary diol, or carried out in the presence of an alkali metal hydroxide or alkaline earth metal hydroxide and a secondary or tertiary diol. The ketene acetals which can be prepared by the process of the invention serve as intermediates in organic synthesis and are suitable as monomers or comonomers in free radical polymerization for the production of biodegradable plastics.

Abstract: Urea- and urethane-containing monomers for contact lens materials are disclosed.

Abstract: A modified bisimide resin is prepared by copolymerizing a bisimide monomer and a cyclic triene. The copolymerization of a bisimide with a cyclic triene such as 1,2,4-trimethylenecyclohexane provides a modified bisimide having good fracture toughness.

Abstract: The invention relates to hydroxylamine derivatives of the general formula ##STR1## in which A denotes a divalent connecting link, R.sup.1 can be a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, Z stands for an n-valent organic radical, which contains a copolymerizable ethylenically unsaturated group, and n is an integer from 1 to 3, and salts thereof and copolymers thereof.

Abstract: Anhydride functionalized copolymers of a higher .alpha.-olefin, and an unsaturated dicarboxylic acid ester formed by copolymerization of olefin, acid ester and anhydride of the acid can be used to form imide and polar group-containing lubricant additives by reaction of the anhydride functionality in such a copolymer with an organic compound containing amino functionality and a polar group, such as hydroxy or carboxylic acid.

Abstract: A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultaneous manner. All necessary reactants for the functionalization are present when polymerization is initiated. The nitrogen-containing functional group is provided as a part of a molecule having a release moiety which is preferably resonance stabilized or a tertiary alkyl type and which acts to aid the nitrogen-containing species in functioning as a leaving group.

Abstract: Described are preferred monomers including a vinylbenzyl moiety N-bonded to an alkylaminopyridinyl or pyridylimidazolyl function. Also described are preferred acid salts of such monomers. Additionally, preferred processes involving and resins formed from these preferred monomers are described. The preferred resins are highly selective for valuable heavy metal ions such as copper and demonstrate superior iron rejection values.

Abstract: Luminescent copolymers having the following structure:[A].sub.a --[B].sub.bin whichA is a luminescent component,B represents (co)monomers anda and b represent the percentages by weight of A and B in the copolymer, a making up 0.0001 to 20% by weight and b making up 99.9999 to 80% by weight, rare earth metal complexes having the formula M.sup.3+ (L).sub.n --suitable as component A in claim 1--where M.sup.3+ is the cation of a rare earth metal, L is a polymerizable complex ligand and n is an integer of 1 to 4, as their initial product and the use of the luminescent copolymers in medical diagnosis.

Abstract: An acrylic monomer which is an amino sugar alcohol whose primary or secondary amino group has been derivatized by an acryloyl or a methacryloyl function. The amino group can be linked to any carbon of five or six-carbon sugar alcohols. The acrylic monomer has the formula: ##STR1## where R.sub.1 is H, CH.sub.2 OH or (CHOH).sub.m CH.sub.2 OH, m being 1 or 2;R.sub.2 is monohydroxyalkyl, polyhydroxyalkyl or hydrocarbon radical;R.sub.3 is H or CH.sub.3 ; andn is an integer of 1-4The acrylic monomer can be polymerized by a free radical polymerization, either alone or with other compounds and materials having polymerizable double bonds. The so formed polymers are linear or branched (cross-linked). The cross-linked polymers are usually in the form of gels. The gels can be polymerized in different forms and shapes, i.e., beads, thin sheets, rods, blocks, etc. and are useful as separation media, e.g.

Abstract: Methine or azamethine dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where G is a divalent organic radical,Z is nitrogen or CH,R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.6 -alkyl or substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy,R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl or C.sub.3 -C.sub.4 -alkenyl,R.sup.4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine,R.sup.5 is hydrogen or deuterium,Y.sup.1 and Y.sup.2 are each C.sub.2 -C.sub.10 -alkylene,E is oxygen, imino or C.sub.1 -C.sub.4 -alkylimino, andX is hydroxyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, phenoxy, amino or C.sub.1 -C.sub.4 -mono- or -dialkylamino, andthe ring A can be benzofused, and have an average molecular weight of from 1,000 to 100,000.