Abstract: A process is described for making substantially homogeneous copolymers comprising 50-90% of vinyl pyrrolidone (VP) and 10-50% of vinyl acetate (VA), by weight, which form clear aqueous solutions.

Abstract: Disclosed herein are crosslinked spherical fine particles having good toughness, elastic properties, and chemical properties, and a process for producing the same, said fine particles being obtained by radical polymerization in the suspended state of a component [M] capable of radical polymerization containing a vinyl group-containing compound (V) capable of radical polymerization which is obtained by reaction of (a) a selected polyol, (b) an isocyanate group-containing compound, and (c) an active hydrogen-containing vinyl monomer capable of radical polymerization. Also disclosed herein are the secondary products of the crosslinked spherical fine particles, which include a coating composition and its derivatives (such as filmlike article, sheetlike article, adhesive filmlike article, and adhesive sheetlike article) and a peelable pressure-sensitive adhesive and peelable pressure-sensitive adhesive article.

Abstract: A process is provided for suspension polymerization of water-soluble monomers in aqueous suspension to form spherical, unagglomerated polymer beads. The polymerization is conducted in the presence of a nonionic, substituted hydroxyalkylcellulose dispersant which is especially effective in protecting the monomer droplets from coalescence prior to their forming stable polymer particles.

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 C1-C6 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: The present invention provides the near infrared polymerizable composition which has high sensitivity sufficient to provide excellent curability to the coating composition containing the same, even if the coating composition contains the pigment as well. The present invention provides a near infrared polymerizable composition comprising a cyanine dye, a S-triazine compound, an organoboron salt and an ethylenically unsaturated compound.

Abstract: Novel unsaturated peroxide compositions of Structure A,R--Q--X--R.sub.1 A[Where the R--Q-- grouping contains a polymerizable carbon-carbon double bond, --X-- is a direct bond or a connecting diradical and --R.sub.1 is a peroxide containing radical all as defined in the Summary of the Invention Section.], polymeric-peroxide compositions derived from them and their uses are disclosed.

Abstract: An antimicrobial polymerizable composition comprising an ethylenically unsaturated monomer, a specific monomer having antimicrobial activity and a polymerization initiator. The composition gives, upon polymerization, a polymer having permanent antimicrobial property, which is very useful for medical articles, in particular dental materials.

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: A homogeneous polymerization process is described for making substantially homogeneous terpolymers of, by weight, 55-99%, preferably 65-95% of vinyl pyrrolidone; 0.5-49%, preferably 1-25% of a quaternary amino monomer, preferably 3-methacrylamidopropyl trimethylammonium chloride; and 0.5-49%, preferably 1-25%, of a hydrophobic monomer, preferably octadecyl methacrylate. The homogeneous terpolymer provides dual hair styling and conditioning functions in hair care applications.

Abstract: Methods of producing particulate, absorbent, polymeric compositions comprising interparticle crosslinked aggregates. In the methods of the present invention, an interparticle crosslinking agent is applied onto precursor particles; the precursor particles are physically associated to form a multiplicity of aggregates; and the interparticle crosslinking agent is reacted with the polymer material of the precursor particles of the aggregates, while maintaining the physical association of the precursor particles, to form crosslink bonds between the precursor particles to form interparticle crosslinked aggregates. The interparticle crosslinked aggregates are formed to such an extent that the mass average particle size of the polymeric composition is at least about 25% greater than the mass average particle size of the precursor particles.

Abstract: Novel unsaturated peroxide compositions of Structure A,R--Q--X--R.sub.1 A[Where the R--Q-- grouping contains a polymerizable carbon-carbon double bond, --X-- is a direct bond or a connecting diradical and --R.sub.1 is a peroxide containing radical all as defined in the Summary of the Invention Section.], polymeric-peroxide compositions derived from them and their uses are disclosed.

Abstract: The present invention relates to an acrylate copolymer containing amino groups, carboxyl groups and, if appropriate, hydroxyl groups which is characterized in that it has been produced by preparing an acrylate copolymer containing amino groups and, if appropriate, carboxyl groups, by means ofA) free-radical solution polymerization, using azo initiators at temperatures from 80.degree. to 150.degree. C., ofa.sub.1) 1 to 20% by weight of vinylimidazole and/or dimethylaminopropylmethacrylamide,a.sub.2) 0 to 50% by weight of one or more monomers containing hydroxyl groups,a.sub.3) 0 to 50% by weight of one or more monomers containing carboxyl groups, anda.sub.4) 30 to 85% by weight of at least one further ethylenically unsaturated copolymerizable monomer,the total of the proportions by weight of the components a.sub.1 to a.sub.4 always being 100% by weight, and the proportions by weight of the components a.sub.2 and a.sub.

Abstract: A curable composition which comprises:(a) an anhydride-functional polymer obtained by polymerizing under free radical addition polymerization conditions, a monomer mixture comprising:(i) 20 to 75 weight percent of an alkenyl succinic anhydride having the structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen or alkyl or substituted alkyl of 1 to about 30 carbons; and(ii) 25 to 80 weight percent of at least one (meth)acrylic monomer copolymerizable with the alkenyl succinic anhydride; and, optionally,(iii) 0 to 75 weight percent of at least one unsaturated monomer, other than a (meth)acrylic-monomer, which is copolymerizable with the anhydride and the (meth)acrylic monomer; and(b) a compound having an average of at least two functional groups per molecule which are reactive with anhydride groups.

Abstract: New contact adhesives which are designed as multifunctional contact reactive adhesives and which may be used in a multistage curing process, for example for bonding wood, plastic moldings, metals and the like, are provided. One of the functional substituents of the adhesive composition is characterized by the presence of an olefinic double bond which is accessible to radical reaction initiation. The other functional substituent is an isocyanate group which reacts off, e.g. under the effect of moisture. These different reaction mechanisms enable the reactive contact adhesive to be cured in stages, e.g. by forming contact-sensitive adhesive layers on hard surfaces in a first stage, subsequently fitting the correspondingly coated surfaces together and firmly bonding them together in a final stage, e.g. under the effect of atmospheric moisture. Also provided is a process for the production of the new reactive contact adhesives.

Abstract: A maleimide-based copolymer is provided, in which the content of compound (X) shown by the formula (I) is controlled in a range which does not adversely affect the physical properties of the copolymer. Such a copolymer includes an aromatic vinyl-based monomer unit and a maleimide-based monomer unit as essential components, proportion y of the maleimide-based monomer unit in structure is 35 to 65% by weight, and a content of the compound (X) is 3% or less and also, does not exceed a numeral value of 0.06y. The copolymer is prepared by radical copolymerization which is carried out by supplying gradually an aromatic vinyl-based monomer and a maleimide-based monomer into a reaction vessel under a condition of keeping these monomers separated without mixing together beforehand.

Abstract: Copolymer solutions, based on addition products of .alpha., .beta.-unsaturated carboxylic acid with glycidyl esters and copolymerisable .alpha., .beta.-unsaturated monomers, with a remarkably high as-copolymerized solids content of about 80% by weight and which can be processed with polyisocyanates into high solids two-component coatings having a good processing viscosity. The copolymers contain a methoxy-functional polysiloxane as copolymerized units. The copolymers can be processed with amino resins into binders for baking finishes which used as improved clear coatings for automotive topcoating produce paint films which possess excellent abrasion resistance in car washes.

Abstract: An adhesive which exhibits excellent adhesiveness and is capable of firmly adhering an acrylic resin and a silicone rubber together at a temperature of as low as about 20.degree. to 30.degree. C. requiring a time of as short as several minutes. The adhesive is obtained by dissolving in a solvent a novel silicone-modified acrylic copolymer having a polyorganosiloxane with an SiH reaction point on the side chain.

Abstract: The present invention provides a polymerizable monomer represented by the general formula (1), polymer thereof, process for preparing the polymer and the use of the polymer ##STR1## wherein R.sup.1 is a hydrogen atom, methyl, chlorine or cyano, R.sup.2 is alkylene having 1 to 4 carbon atoms, R.sup.3 is alkylene having 3 to 10 carbon atoms, R.sup.4 is alkyl having 6 to 18 carbon atoms, R.sup.6 to R.sup.8 are the same or different and are each alkyl or substituted alkyl having 1 to 3 carbon atoms, A is methylene, phenylene, substituted phenylene, --CH.sub.2 O--, --CH.sub.2 CH.sub.2 O--, --CO--, --CO--N(R.sup.9)-- (wherein R.sup.9 is a hydrogen atom or methyl) or vinylene, m is 0 or 1, and X and Y are the same or different, and are each a monovalent anion or form a bivalent anion when taken together.

Abstract: Novel unsaturated peroxide compositions of Structure A,R--Q--X--R.sub.1 Apolymeric-peroxide compositions derived from them and their uses are disclosed.

Abstract: Novel polymerizable yellow dyes are disclosed. Additionally, novel and known dyes are used to block or lower the intensity of blue light transmitted through ocular lenses and other windows.