Abstract: Water soluble polymers containing N-9-xanthenylacrylamide and N-dibenzosuberenylacrylamide.

Abstract: Disclosed are liquid-dispersible colorant compositions and stable aqueous dispersions of such colorant materials. The colorant is a polymeric colorant comprising a water-insoluble, polymeric colorant comprising a polyester having copolymerized therein residue of one or more monomeric, organic colorant compounds.

Abstract: An adhesion-improver which comprises a reaction product of an amino compound having a primary and/or secondary amino group in the molecule or a modified amino compound obtained by modifying the amino compound with a compound having an epoxy group, and a carbonyl compound, particularly a dicarbonyl compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are each an alkyl having 1 to 16 carbon atoms, an aryl having 6 to 12 carbon atoms or an alkoxy having 1 to 4 carbon atoms, R.sup.3 is a hydrocarbon group having one or more carbon atoms, and n is 0 or 1, is used to prepare a curable composition such as an adhesive, sealing agent, paint or pourable compound.

Abstract: Disclosed are certain 2-(4-alkenylphenyl-5-oxazolones useful in the production of polymers containing pendant functional groups obtained by nucleophilic ring-opening addition reactions, the 2-(4-alkenylphenyl)-5-oxazolones having the formula ##STR1## wherein R.sup.1 is hydrogen or alkyl; each of R.sup.2 and R.sup.3 is hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, or R.sup.2 and R.sup.3 together with the carbon atom to which they are bonded constitute a carbocyclic or heterocyclic ring.

Abstract: A highly dilatant copolymer dispersion containing, as essential components, an emulsion copolymer prepared from 1 to 10% by weight, based on the sum of the monomers employed, of .alpha.,.beta.-monoolefinically unsaturated carboxylic acids and other olefinically unsaturated monomers, in which the emulsion copolymer is prepared in the presence of from 5 to 30% by weight, based on the sum of the monomers employed, of allyl carboxylate or alkylallyl carboxylate containing 2 or more copolymerizable olefinic double bonds, or a mixture thereof, the alkyl radical containing 1 to 4 C atoms, and the preparation thereof.

Abstract: According to this invention, there is provided a denture adhesive which is a mixed partial salt of a terpolymer of maleic anhydride, (MA) a C.sub.1 -C.sub.4 alkyl vinyl ether (AVE) and isobutylene (IB) vinyl ether, having a weight average molecular weight of about 30,000 to 400,000, preferably about 50,000 to 350,000. The terpolymer has its components in the molar ratio of MA:AVE:IB of about 1:0.4-0.9:0.1-0.6, preferably about 1:0.5-0.8-0.2-0.5.

Abstract: Vinyl ether copolymers and a method of preparing the same. The vinyl ether is copolymerized with styrene, alkyl-substituted styrenes, alkoxy-substituted styrenes and mixtures thereof. In the process, a cadmium halide is used with hydrogen iodide or a suitable iodine containing electrophile, as the coinitiator.

Abstract: Terpolymers of maleic anhydride, a C.sub.1 -C.sub.5 alkyl vinyl ether and a C.sub.12 -C.sub.14 alpha-olefin, and crosslinked products thereof, are provided herein for use in thickener, adhesive, sunscreen, hair spray, and waterproofing compositions. The alpha-olefin comonomer is a hydrophobic, straight chain, unsaturated hydrocarbon such as dodecene or tetradecene, which is present in the terpolymer in predetermined amounts relative to the hydrophilic maleic anhydride component, to provide a terpolymer having a suitable HLB for these applications.

Abstract: A process for producing a polymer by ring-opening polymerization of a norbornene-type monomer, which comprises starting the ring-opening polymerization in the presence of a Ziegler-type catalyst consisting essentially of an organometallic compound of a metal belonging to the groups I to III of the periodic table and titanium tetrahalide, carrying out the ring-opening polymerization until the norbornene-type monomer shows a conversion ratio of not less than 60%, and then adding a tungsten and/or molybdenum-based metathesis catalyst to the polymerization reaction system to continue the ring-opening polymerization.

Abstract: Benzotriazole compounds having the formula: ##STR1## wherein R.sub.1 is H, Cl, or OCH.sub.3 ; R.sub.2 is a hydroxynaphthyl group; and R.sub.3 is a vinyl unsaturated polymerizable group. Homopolymers or copolymers thereof are effective as UV light stabilizers and absorbers.

Abstract: Disclosed is a process for the polymerization of norbornene derivatives which comprises contacting the monomer(s) with a catalytic system comprising the following two components:(1) a tungsten compound which is the product of combining a tungsten halide with a para-trihalomethylphenol which can be described by the formula ##STR1## in which each R is selected from alkyl and halide, and (2) a compound of the general formula: ##STR2## in which at least two of R.sup.1, R.sup.2 and R.sup.3 are selected from unsubstituted and substituted C.sub.1-20 hydrocarbyl.

Abstract: An improvement in the process for the continuous copolymerization of ethylene with certain polar comonomers having reactive double bonds, wherein a single phase is maintained in the reactor by means of methanol introduced concurrently with the reactants, whereby reactor fouling is significantly reduced or eliminated.

Abstract: The invention relates to crosslinked polymers based on triazines of the general formula I ##STR1## wherein R denotes hydrogen, CH.sub.3 or C.sub.2 H.sub.5, andat least one vinylmonomer.The polymers are suitable as crosslinking agents for the preparation of duromers or elastomers.

Abstract: A dispersion of fine particles of a gelled polymer obtainable by copolymerizing and crosslinking a vinyl monomer mixture containing at least 0.5% by weight each of at least two vinyl monomers in the presence of a macromonomer A, which has a molecular chain of poly(12-hydroxystearic acid) and has at least about one polymerizable unsaturated double bond per molecule in average, and a macromonomer B, which is a copolymer of an ethylenic unsaturated monomer and has a solubility parameter value of from 7.5 to 9.2 and about 1.0 to about 1.

Abstract: A composition comprising:(i) a thermoplastic resin; and(ii) magnesium hydroxide, the surface of which has been treated with an organic aminosilane.

Abstract: Curable mixtures containing(a) an aromatic bismaleimide of formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each is C.sub.1 -C.sub.4 alkyl, and R.sub.3 and R.sub.4 are each independently of the other a hydrogen or halogen atom, and (a) a propenyl compound of formula II ##STR2## wherein m and n are each independently of the other 1 or 2, Z is a hydrogen atom or C.sub.1 -C.sub.4 alkoxy, and A is a radical of formula IIa, IIb or IIc ##STR3## wherein D is --SO.sub.2 -- or --CO-- or is a radical of formula ##STR4## wherein X and X.sub.1 are each independently of the other --CO--, --SO.sub.2 -- or --O--, and p is 0 or 1, E is phenylene or a radical of formula V ##STR5## wherein G is ##STR6## and q is 0 or 1, are readily processable, well suited for the preparation of prepregs or fibre-reinforced composites, and give mouldings having excellent fracture toughness.

Abstract: Stabilized aqueous polymer latex compositions comprising: (A) a polymeric latex particle; (B) a protective colloid; and (C) a polyoxyalkylene-containing alkyd resin which is the reaction product of (i) at least one polyoxyalkylene, (ii) at least one polyol; (iii) at least one polycarboxylic acid anhydride; and (iv) at least one monocarboxylic acid are disclosed. Also detailed is a method of producing such a stabilized polymer latex composition.

Abstract: A hydrophilic crosslinkable copolymer comprising monomer units derived from an ester of an ethylenically unsaturated carboxylic acid wherein the ester group contains a labile primary hydroxyl group and monomer units derived from a halohydroxyalkyl ester of an ethylenically unsaturated carboxylic acid is disclosed. The copolymer is useful in affinity separation systems.

Abstract: Disclosed are novel, stable aqueous dispersions of ionic polyurethane-urea prepared by reacting an aliphatic or cycloaliphatic diisocyanate, an organic polyol, a large particle size hydrophobic copolymer polyol, a difunctional isocyanate reactive component, and a water dispersible amine chain extender. Also disclosed are the films and coated substrates obtained through the use of said dispersions as coatings.

Abstract: What is described herein is a process for making copolymers of maleic anhydride and C.sub.1 -C.sub.4 alkyl vinyl ethers of predetermined specific viscosities extending over a wide viscosity range. The invention is characterized by (a) precharging a reactor with a C.sub.1 -C.sub.4 alkyl vinyl ether as solvent and a polymerization initiator at a reaction temperature, (b) feeding a mixture of maleic anhydride and a C.sub.1 -C.sub.4 alkyl vinyl ether in substantially stoichiometric amounts, preferably with a slight excess of alkyl ether, and at a selected rate, into said precharged reactor, (c) polymerizing said reactants to form a slurry of said copolymer in said escess alkyl vinyl ether solvent, and (d) introducing toluene into said reactor during the polymerization to control the specific viscosity of the copolymer product being produced.