Abstract: A self-dispersing curable epoxy composition is prepared upon contacting (a) 1.0 reactive equivalents of an epoxy resin, (b) between 0.005 and 0.5 reactive equivalents of an amine-epoxy adduct, and optionally (c) from about 0.01 to 1.0 reactive equivalents of a polyhydric phenol, wherein the amine-epoxy adduct is formed upon contacting 1.0 equivalents of an aliphatic polyepoxide and greater than 1.0 but no more than about 2.5 reactive equivalents of a polyoxyalkyleneamine. The self-dispersing curable epoxy resin forms an aqueous dispersion upon mixing with water. When cured, the dispersion is useful as a coating composition.

Abstract: Polyphosphazenes are produced by polymerizing a silylated phosphinimine in the presence of an initiator, preferably an anionic initiator at temperatures below those typically necessary for such polymerization reactions. The polyphosphazenes obtained are suitable for use in the production of elastomeric and thermoplastic materials.

Abstract: A silicone pressure-sensitive adhesive composition having high adhesion and tack while having a high percentage of adhesive failure when peeled from substrates is disclosed, said composition consisting essentially of(A) 50 to 80 parts by weight of an MQ organopolysiloxane resin;(B) 20 to 50 parts by weight of a polydiorganosiloxane having at least 3 alkenyl groups in its molecule, with the proviso that the alkenyl group content of said polydiorganosiloxane is 0.1 to 4 mole percent, the total amount of components (A) and (B) being 100 parts by weight;(C) an organohydrogenpolysiloxane crosslinking agent having, on average, at least 3 SiH groups per molecule, the amount of said organohydrogenpolysiloxane being sufficient to provide a molar ratio of said SiH groups of component (C) to said alkenyl groups of component (B) in the range of 0.1 to <1.0; and(D) a curing amount of a hydrosilation catalyst.

Abstract: The invention relates to a process for the production of a multicoat finish, in which an aqueous basecoat is used which contains as binder a polymer which can be obtained by polymerizing in an organic solvent(A) ethylenically unsaturated monomers in the presence of(B) a polyurethane resin containing polymerizable double bondsand converting the resultant reaction product to an aqueous dispersion.

Abstract: Organo(poly)siloxanes composed of units of the formula [R.sub.a R.sup.1.sub.3-a SiO.sub.1/2 ], [R.sub.b R.sup.1.sub.2-b SiO.sub.2/2 ] and [R.sup.1 SiO.sub.3/2 ], in which R can be the same or different and represents a monovalent organic radical which is free from aliphatic carbon-carbon multiple bonding, R.sup.1 can be the same or different and represents a monovalent organic radical which has at least one aliphatic carbon-carbon multiple bond, a is 0, 1 or 2 and b is 0 or 1.

Abstract: A dental heat-curing silicone composition comprising components A and B obtained by adding inorganic fillers, and if required coloring agents an conventional additives to ingredient of an organopolysiloxane having at least two vinyl groups per molecule, and ingredient of an organohydropolysiloxane having two hydrogen atoms bonded at least to silicone per molecule, and further including 10 parts by weight to 50 parts by weight inclusive of a powder of (neth)acrylate ester homopolymer and/or a (meth)acrylate ester copolymer per a toatl of 100 parts by weight of the components A and B.

Abstract: Organosilane polymers having recurring silylene-1,3-butadiyne and/or disilylene-1,3-butadiyne units are prepared in a one-pot synthesis from hexachlorobutadiene. Depending on the organic substituents (R and R'), these polymers have useful film-forming properties, and are converted to the ceramic, silicon carbide upon heating a very uniform high char yields. They can also be pulled into fibers. The polymers are thermally crosslinked above 100.degree. C.

Abstract: A rubber composition that is prepared by reacting an organic peroxide, under shear deformation, with 3-70 parts by weight of silicone rubber (I), 30-97 parts by weight of a saturated elastomer (II) that substantially fails to be crosslinked with an organic peroxide when it is used alone, and 0-20 parts by weight of another elastomer (III) that is co-crosslinkable with component (I) in the presence of an organic peroxide and which is also co-crosslinkable or highly miscible with component (II) [where (I)+(II)+(III)=100 parts by weight].

Abstract: This invention relates to fluoroalkyloxyalkyl diorganopolysiloxanes having the general formula ##STR1## where R.sup.1 represents fluoroalkyloxyalkyl groups of the general formula--(CH.sub.2).sub.a --O--C.sub.b R.sub.2b Hin which the hydrogen atom is in the beta position to the ether oxygen, a is 2, 3 or 4; b is an integer having a value of from 1 to 6; R.sup.2 represents an alkyl group having from 1 to 8 carbon atoms whose terminal units may also contain an amino or a thiol group, or an alkenyl group having 2 or 3 carbon atoms, or an aryl group having from 6 to 8 carbon atoms or hydrogen; R.sup.3 represents the group having the formula--(CH.sub.2).sub.c --C.sub.d F.sub.(2d-e+l) Hal.sub.e ,in which Hal represents a terminal chlorine, bromine or iodine atom, c is 2, 3 or 4; d is an integer having a value of from 1 to 18; e is 0 or 1; R.sup.4, R.sup.5 and R.sup.6 are the same as R.sup.

Abstract: A poly-p-phenylene sulfide resin composition comprising poly-p-phenylene sulfide as a principal component and 0.05 to 40 wt % (based on the total weight of the composition) of at least one metal component selected from the group consisting of zinc, lead, magnesium, manganese, barium and tin. The plastic materials prepared from the composition of this invention are greatly improved in resistance to copper contact and thermal resistance in closed air environment, and therefore are very useful for electrical insulation.

Abstract: A copolymer composition, specially adapted for use in fabricating a contact lens comprises a copolymer of comonomers which include about 1-95 parts by weight of hydroxy silane esters of acrylic or methacrylic acid and about 99-5 parts by weight of a C.sub.1 -C.sub.20 alkanol ester of acrylic or methacrylic acid.Contact lenses and contact lens blanks are formed of such copolymer by conventional techniques and also by injection molding.

Abstract: Flatting agents, such as silica, talc and carbonates are present in radiation hardenable compositions in order to reduce gloss and obtain a flat appearance in cured coating. However, the flatting agent settles in the radiation-hardenable composition. To reduce settling of the flatting agent, one or more stabilizers are added to the composition. Useful stabilizers are alkylene oxide adducts of particular siloxane copolymers.

Abstract: This invention relates to asphalt composition exhibiting improved physical properties comprising asphalt, hydrogenated rubber copolymer and sulfur which compositions exhibit improved temperature viscosity stability and improved tensile properties.

Abstract: Oxalanilides of formula I ##STR1## in which R is C.sub.6-22 alkyl or C.sub.6-22 alkoxyR.sub.1 and R.sub.2 are independently, hydrogen, C.sub.1-8 alkyl, C.sub.1-12 alkoxy, C.sub.1-12 alkylthio, phenoxy or phenylthio; provided that R.sub.1 and R.sub.2 may not both be selected from alkylthio, phenoxy and phenylthio;andR.sub.3 is hydrogen or C.sub.1-8 alkylcertain of which are novel, are useful as UV-stabilizers in organic polymers and organic polymer-containing coatings, particularly automotive finishes. The compounds have low volatility and excellent solubility in organic solvents such as are used in liquid finishes.

Abstract: A composition suitable for manufacturing into wear-resistant and chemically-inert articles, the composition being a mixture of 74 to 84% polytetrafluoroethylene, 7-17% graphite fibers, and 4-14% fluorinated graphite.

Abstract: Compounds useful as crosslinkers and having the formula: ##STR1## wherein R is selected from the group consisting of alkyl having 1 to 4 carbon atoms, trifluoromethyl and phenyl and x is an integer of 2 to 4, can be used to cure polyorganosiloxanes.

Abstract: There is provided herein a curable silicone elastomer composition comprising the following components: (A) 100 parts by weight of a polyorganosiloxane having at least two silicon-bonded vinyl groups per molecule, (B) 1 to 300 parts by weight of fine powders of tungsten carbide and (C) a component for crosslinking of said component (A) selected from the group consisting of (1) a combination of (a) 0.1 to 10 parts by weight of a polyorganohydrogensiloxane having an average of at least two silicon-bonded hydrogen atoms per molecule and (b) 0.000001 to 0.1 part by weight of a platinum catalyst; (2) a combination of said (a), (b) and (c) 0.00001 part to less than 0.1 part by weight of an organic peroxide except from organohydroperoxide; (3) a combination of said (a) and (d) 0.00001 part to less than 0.2 part by weight of the reaction product between said (b) and (c); and (4) 0.1 to 3.0 parts by weight of an organic peroxide except from organohydroperoxide.

Abstract: A cationic electrophoretic coating composition comprising:(A) a water-soluble or water-dispersible resin prepared by neutralizing with an acid addition products of partially blocked polyisocyanate and the reaction products, said reaction products being prepared by reacting at least one of fatty acid and polyamide with adducts prepared by being allowed an epoxy resin to react with a basic amino compound, and(B) at least one of addition polymers of at least one of ethylene oxide and propylene oxide and derivatives of the addition polymers, the polymers and the derivatives thereof having a number average molecular weight of 500 to 10,000 and having a solubility of up to 60 parts by weight in 100 parts by weight of water at 25.degree. C.

Abstract: A reactive matrix comprises a co-enzyme chemically attached to a water insoluble organic polymeric support material. The reactive matrix may be used in a process for the separation of mixtures containing a plurality of enzymes.