Abstract: A process for recovering a polyphosphazene polyacid or acid salt obtained by hydrolyzing a polyphosphazene having at least one ester moiety present in at least one substituent group. The polyphosphazene having at least one ester moiety present in at least one substituent group is hydrolyzed with a base in an organic solvent in the presence of water. The water is present in an amount effective to induce the agglomeration of particles of the synthesized polyphosphazene polyacid or acid salt, which enhances the separation of the polyphosphazene polyacid or acid salt from a polymer-free liquid organic phase. The polymer-free liquid organic phase then is separated from the polyphosphazene acid or acid salt, whereby the polyphosphazene acid or acid salt is recovered.

Abstract: This process is characterized in that at least one of the said monomers is polymerized or copolymerized in bulk, solution, emulsion or suspension, at a temperature which may be as low as 0.degree. C., in the presence of an initiator system comprising at least one non-peroxy radical-generator compound and at least one catalyst consisting of a metal complex represented by formula Ma.sub.a (L).sub.n in which M represents Rh, Co or Ir; A represents, a halogen or a pseudohalogen; the groups L, which may be identical or different, each represent a ligand which may be a chiral ligand, which is chosen from cyclooctadiene, PRR'R", P(OR) (OR') (OR"), NRR'R", ORR', SRR', SeRR', AsRR'R", SbRR'R", each radical R, R' and R" independently representing an optionally substituted C.sub.1 -C.sub.14 alkyl group or an optionally substituted aromatic group, it being possible for at least two of these ligands to be joined together by one or more divalent radicals; a is an integer such that 1.ltoreq.a.ltoreq.

Abstract: This invention relates to (co)polymers which contain at least one repeat chain unit of the general formula (1) or (2) and optionally repeat units of the general formula (3), ##STR1## in which L.sup.1 and L.sup.2 denote a photoluminescent residue,wherein the proportion of structural units of the formulae (1) and/or (2) is in each case 0.5 to 100 mol. % and of (3) is 0 to 99.5 mol. % and the molar percentages add up to 100,to the use thereof for the production of electroluminescent arrangements and to the electroluminescent arrangements.

Abstract: Improved processes have been developed for atom (or group) transfer radical polymerization (ATRP). In one improvement, the ATRP process involves polymerizing in the presence of a (partially) free radical-deactivating amount of the corresponding reduced or oxidized transition metal compound. In a further improvement, the ATRP process involves polymerizing in a homogeneous system or in the presence of a solubilized initiating/catalytic system. The present invention also concerns end-functional, site-specific functional and telechelic homopolymers and copolymers; block, random, graft, alternating and tapered (or "gradient") copolymers which may have certain properties or a certain novel structure; star, comb and "hyperbranched" polymers and copolymers; multi-functional hyperbranched, end-functional polymers; cross-linked polymers and gels; water-soluble polymers and hydrogels (e.g.

Abstract: Disclosed are the Rhodamine B esters of hydroxy C.sub.2 -C.sub.6 lower alkyl acrylates. Specifically, the hydroxy lower alkyl radical is a linear hydroxy lower alkyl radical having the hydroxy group attached to the terminal carbon atom. Also shown are copolymers of diallyldimetyl ammonium chloride which contains from 0.01-2 mole percent of these Rhodamine B esters and their use in treating industrial waters.

Abstract: This invention discloses heat sensitizable latices and a process for synthesizing heat sensitizable latices. This invention more specifically discloses a process for preparing a heat sensitizable latex which comprises the steps of (1) polymerizing at least one conjugated diolefin monomer in an aqueous polymerization medium by free radical polymerization in the presence of an emulsifier system which is comprised of a fatty ethoxylated monomaleate and optionally an alkyl monomaleate to produce a first latex composition; and (2) adding a water soluble organically modified polysiloxane to the first latex composition to produce the heat sensitizable latex. The present invention further discloses a heat sensitizable latex composition which is comprised of (1) at least one rubbery polymer; (2) water; (3) an emulsifier system which is comprised of a fatty ethoxylated monomaleate and optionally an alkyl monomaleate; and (4) at least one water-soluble organically modified polysiloxane.

Abstract: Agglomerated, finely divided, crosslinked vinylimidazole copolymers obtainable by free-radically initiated polymerization of N-vinylimidazoles of the formula ##STR1## where R, R.sup.1 and R.sup.2 are identical or different and each is H, C.sub.1 -C.sub.

Abstract: Disclosed is a co-polymer based on oxyalkyleneglycol alkenyl ethers and unsaturated dicarboxylic acid derivatives, as well as vinylic polyalkyleneglycol, polysiloxane or ester compounds. These co-polymers can be used as additives for hydraulic binding agents, especially cement. The co-polymers of the invention have an excellent and long-lasting liquefying action without introducing large amounts of air pores into the binding agent mixtures, thereby preventing the loss of strength and stability of the hardened building materials.

Abstract: A complex comprises organoborane and polyamine. The polyamine is the reaction product of a diprimary amine-terminated material and a material having at least two groups reactive with primary amine. The complexes are useful in systems for initiating the polymerization of acrylic monomer, which systems further include a material reactive with amine. Polymerizable acrylic monomer compositions useful as adhesives can be prepared.

Abstract: A new method of adjuvanting a variety of materials has been developed. Starburst dendrimers, primarily poly(amidoamine) starburst dendrimers, can be used as an adjuvant for Influenza antigen and similar materials. Mid-Generation dendrimers are preferred and yield high antibody titer levels with reduced antigen dosage.

Abstract: A vinyl 4-tetrahydropyranyloxybenzal-vinyl 4-hydroxybenzal-vinyl tetrahydropyranyl ether-vinyl acetate copolymer, a vinyl 4-tetrahydropyranyloxybenzal-vinyl tetrahydropyranyl ether-vinyl acetate copolymer and a preparation method thereof are provided. The copolymers have excellent transparency because they are very low in optical absorbance in the deep uv range. In addition, the acetal structure in the backbone and in the substituted groups endows the photoresist of the copolymer with superior dry etch resistance.

Abstract: Polymerizable cyclodextrin derivatives (PCDs) are disclosed, wherein each molecule contains at least one covalently attached polymerizable group, may also contain one or more other covalently attached functional ligand group(s), such as free carboxyl group(s), may also contain molecularly encapsulated comonomers, polymerization inhibitors (stabilizers), and polymerization initiators. The groups are attached covalently as ether or ester derivatives in statistically predetermined proportions, in a homogeneous solution, to form a "combinatorial" library having quasi-random molecular configurations of free carboxyl or other ligand groups. In the resulting PCD library, appropriate comonomers and polymerization initiators can be added that will enable timely polymerization to form unique structural adhesives and resins. The adhesive resins can be utilized in preventative and restorative dentistry.

Abstract: Acetylenic alcohols and diols have been found which are soluble in liquid/supercritical CO.sub.2 and exhibit surface active properties. These alcohols and diols act as surfactants by lowering the surface tension between CO.sub.2 and mobile CO.sub.2 -phobic substances which are contacted with the CO.sub.2.

Abstract: A highly polymerizable N-vinylcarboxylic acid amide having an N-1,3-butadienylcarboxylic acid amide content of 30 ppm or less, a process for producing the same, and a process for producing a homopolymer of N-vinylcarboxylic acid amide or a copolymer thereof with another copolymerizable monomer using the same. Also, a highly polymerizable N-vinyl carboxylic acid amide is produced by thermal cracking or catalytic cracking of N-(1-alkoxyethyl)carboxylic acid amide or ethylidenebiscarboxylic acid amide, wherein the N-vinylcarboxylic acid amide content of the N-(1-alkoxyethyl)carboxylic acid amide or ethylenebiscarboxylic acid amide is 10 wt % or less.

Abstract: The invention relates to a dendrimer composition in which an effective number of the terminal functionalities are provided with blocking agents, and at least one active substance species is occluded in the dendrimer. A blocking agent is a sufficiently sterically sized compound which readily enters into a chemical bond with a terminal group of a dendrimer but which can also be split off from the dendrimer or can be modified without affecting the chemical structure of the dendrimer and the occluded active substance. The blocking agent can also be provided with a protecting group. The time and duration over which an active substance is released can be controlled. The invention also relates to a process for the preparation of such a composition and to a process for the controlled release of the active substance.

Abstract: A water-absorptive soft contact lens material having a high transparency, an excellent flexibility, a high oxygen permeability independent of water content, a high mechanical strength and an adequate hardness, which comprises a copolymer prepared by the polymerization of a monomer mixture comprising an N,N-dialkyl acrylamide or methacrylamide, an N-vinyllactam and a bis(silicon-containing alkyl) fumarate in a specific ratio, and which provides water-absorptive soft contact lenses having excellent properties such as high transparency and high oxygen permeability.

Abstract: Compounds of formula (I) are disclosed: ##STR1## wherein L.sup.1 is a main group atom, L.sup.2 is a neutral ligand, M is a transition element or a metal element of Group 13, 14, 15, or 16 of the Periodic Table, x is the number of coordination sites of M, R.sup.1 is a polymerizable group, R.sup.2, R.sup.3, and R.sup.4 are ligands, and R.sup.5 is an anionic ligand. The compounds or monomers of formula (I) are capable of conversion to polymers by combination with one or more other known monomers, such as methyl methacrylate. Such polymers can then be added as a binder in a paint formulation to make marine antifouling coating compositions. Also described is a method to prevent fouling on surfaces wherein a composition containing a metal complex compound of formula (II): ##STR2## wherein M, x, L.sup.2, n, and R.sup.4 have the same meaning as in formula (I), is applied to the surface susceptible to fouling.

Abstract: An acrylic ester derivative expressed by Formula (1) below is produced by reacting an acrylic ester expressed by Formula (2) below with a saccharide containing a hemiacetal hydroxyl group expressed by Formula (3) below and/or an alkylglycoside expressed by Formula (4) below: ##STR1## where R.sub.1 represents a hydrogen atom or organic residue, R.sub.2 represents a hydrogen atom, counter ion, or organic residue, and G represents a saccharic residue; ##STR2## where R.sub.1 represents a hydrogen atom or organic residue and R.sub.2 represents a hydrogen atom, a counter ion, or organic residue;G--H (3)where G represents a saccharic residue; andG--R.sub.3 (4)where G represents a saccharic residue and R.sub.3 represents an organic residue. An acrylic-ester-based polymer is produced by letting a monomeric component containing such an acrylic ester derivative undergo polymerization.

Abstract: Novel 1,1,2,2-tetramethylpropylperoxy esters are provided. They are useful as a polymerization initiator in polymerizing vinyl chloride, vinylidene chloride and vinyl acetate monomers, with the advantage of completing polymerization within a short time.

Abstract: A liquid coating composition for forming an anti-interference film over a photoresist film is prepared by combining a water-soluble, film-forming component with a specified fluorosurfactant or by combining said water-soluble, film-forming component with a fluorosurfactant and a specified anionic surfactant. A coating film is formed from said liquid coating composition over a photoresist film to produce a photoresist material of a dual structure. The photoresist material is particularly effective in lessening the multiple-interference effect of light, thereby enabling the formation of very fine resist patterns having high fidelity to mask patterns.