Abstract: The invention relates to a valve used in medical procedures. More specifically the invention relates to an introducer sheath valve used in minimally invasive and conventional surgical procedures. The valve may accommodate a wide range of surgical implement diameters, shapes, and multiple implements without imposing the high frictional forces of known valves.

Abstract: The present invention is directed to aqueous systems for polyamideimide, polyether imide, and/or polyamic acid binder solutions. The present invention provides stable aqueous binder solutions equivalent or superior to current aqueous binder solutions.

Abstract: Disclosed is a phase change ink comprising a colorant, an initiator, and a phase change ink carrier, said carrier comprising at least one radically curable monomer compound and a compound of the formula wherein R1 and R1? are the same, and wherein R1 and R1? are each an aromatic group; and wherein R2 and R2? and R3 each, independently of the others, are alkylene groups, arylene groups, arylalkylene groups, or alkylarylene groups; or wherein, in embodiments, R1 and R1? can be the same or different, and wherein R1 and R1? each, independently of the other is an alkyl group having a least one ethylenic unsaturation, an arylalkyl group having at least one ethylenic unsaturation, an alkylaryl group having at least one ethylenic unsaturation, or an aromatic group, provided that at least one of R1 and R1? is an aromatic group; and provided that neither of R1 or R1? is a photoinitiator group. Also disclosed herein is a method of printing with the phase change ink.

Abstract: A polypropylene resin composition, comprising (A) 51 to 99% by weight of a propylene polymer having a melt flow rate of 10 to 200 g/10 minutes, and containing 0.1 to 40% by weight of an ethylene unit and/or ?-olefin unit having 4 to 10 carbon atoms and 60 to 99.9% by weight of a propylene unit, (B) 1 to 49% by weight of an ethylene polymer having density of 0.85 to 0.93 g/cm3, and (C) 0.001 to 5 parts by weight of an amide compound as a nucleating agent.

Abstract: A solid ink that includes an ink carrier and a resinous compound of the formulas or a salt thereof, wherein G1 is —X1C(O)OR1, —X2OC(O)R2, or —X2OH; G2 is R4, R12, —C(O)R2, —C(O)X1C(O)OR1, or —C(O)X2OC(O)R2; R1 is an alkyl having from 10 to 80 carbon atoms; R2 is an alkyl having from 2 to 40 carbon atoms; each R3 and R4 is independently hydrogen, alkyl, arylalkyl or alkylaryl; each R5 and each R6 is independently hydrogen or alkyl; X1 and X2 are both a straight or branched alkylene group; t1 is 1 to 20; t2 and t3 is independently 0 to 20; u1 is 1 to 30; u2 and u3 is independently 0 to 30; each R7 and each R8 is independently hydrogen, alkyl, or alkoxyl; each R9 and each R10 is independently hydrogen, alkyl, or alkoxyl; Ar is a substituted or unsubstituted aromatic moiety; p is 1 to 5; q is 1 to 12; A? is selected from the group consisting of Cl?, Br?, I?, HSO4?, HSO3?, CH3SO3?, NO3?, HCOO?, CH3COO?, H2PO4?, SCN?, ClO4?, SSO3?, PF6?, and SbCl6?; and J is alkyl, arylalkyl, or alkylaryl.

Abstract: The present invention relates to a film-forming composition intended to be applied to an inner surface of a building which includes an agent capable of trapping formaldehyde chosen from compounds comprising active methylene(s), tannins and amides. Another subject matter of the present invention is the use of said film-forming composition in reducing the amount of formaldehyde in the air inside a building.

Abstract: A polypropylene resin composition, comprising (A) 51 to 99% by weight of a propylene polymer having a melt flow rate of 10 to 200 g/10 minutes, and containing 0.1 to 40% by weight of an ethylene unit and/or ?-olefin unit having 4 to 10 carbon atoms and 60 to 99.9% by weight of a propylene unit, (B) 1 to 49% by weight of an ethylene polymer having density of 0.85 to 0.93 g/cm3, and (C) 0.001 to 5 parts by weight of an amide compound as a nucleating agent.

Abstract: Compostable hydrocarbon polymers, composites, and articles anaerobically biodegrade in landfills in a relatively short time. Composite polymeric articles and sheets such as indoor or outdoor signs, billboards, banners, images, protective barriers, backdrops and wall coverings have very useful service durations and yet are landfill biodegradable.

Abstract: Compositions of vinyl acetate polymers such as polyvinyl acetate (PVAc) are rendered compostable by a monomeric adduct of an organotitanate or zirconate as a prodegradant. PVAc sheets and composites are compostable in landfills.

Abstract: Compositions of vinyl halide polymers such as PVC are rendered compostable by a prodegradant system of a monomeric adduct of an organotitanate or zirconate and an organotin. PVC sheets and composites are compostable in landfills.

Abstract: The invention relates to the use as a sag control agent (SCA) in coating compositions of a rheology modification agent obtainable by reacting one or more polyisocyanates with one or more derivatives of optically active amino acids.

Abstract: Disclosed herein are aromatic amide derivatives of the formulae: wherein X1 and X2 are independently selected from the group consisting of —OH, —OR, —OM, —NH2, and —NHR; M is a metal; and R, R1, and R2 are independently selected hydrocarbyl groups.

Abstract: A variety of UV curable phase change inks are disclosed. The inks possess the characteristic the gloss of printed areas closely matches the gloss of unprinted areas of the substrate. On plain papers the printed and unprinted gloss values are within 5 ggu when measured at 60°. On coated papers, the printed and unprinted gloss values are within 25 ggu when measured at 60°. Although not limited by any theory, it is speculated that the gel rheology of inks of the disclosure conforms well with the paper substrate, providing a rougher low gloss surface on plain paper and a smoother high gloss surface on coated paper.

Abstract: Compositions of vinyl halide polymers such as PVC are rendered compostable by a prodegradant system of an organotitanate or zirconate and an organotin. PVC sheets and composites are compostable in landfills.

Abstract: Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring.

Abstract: The polyimide film of the present invention is produced in the following manner: polyamic acid made of a combination of a specific acid anhydride constituent and a specific diamine constituent are heated under a low-pressure circumstance for heat imidation, and the obtained imide is dissolved again in a solvent to be polyimide solution, then the polyimide solution is formed to be a film. In this manner, it is possible to provide a polyimide film essentially transparent and colorless, and has sufficient toughness to prevent occurrences of a crack or a break when the film is folded and creased by hand.

Abstract: The present invention relates to the prevention of scorching before crosslinking of a thermoplastic and/or elastomeric composition with peroxides or azo compounds. This is achieved by using a nitroxide in combination with at least one crosslinking promoter (promoter) chosen from group (P) consisting of compounds containing at least one double bond, which may be difunctional or polyfunctional.

Abstract: Electron donor compounds, suitable for use as adhesives or as components in adhesives, contain a carbon to carbon double bond attached to an aromatic ring and conjugated with the unsaturation in the aromatic ring.

Abstract: Polyisocyanurate systems, pultrusion of those systems to produce reinforced polyisocyanurate matrix composites, and to composites produced thereby. The polyisocyanurate systems include a polyol component, an optional chain extender, and an isocyanate. The polyisocyanurate systems have extended initiation times of about 5 minutes to about 30 minutes at room temperature, and can be snap cured.

Abstract: The invention relates to polyisocyanurate systems, pultrusion of those systems to produce reinforced polyisocyanurate matrix composites, and to composites produced thereby. The polyisocyanurate systems include a polyol component, an optional chain extender, and an isocyanate. The polyisocyanurate systems have extended initiation times of about 5 minutes to about 30 minutes at room temperature, and can be snap cured.

Abstract: Described is a thermoplastic molding composition comprising: a) 0.05 to 1.5 wt. %, with respect to the entire molding composition, of a fatty acid amide ester wax; b) 0.5 to 10 wt. %, with respect to the entire molding composition, of a silica selected from natural silica, synthetic silica and mixtures thereof; c) 0 to 1 wt. %, with respect to the entire molding composition, of a montan wax; and d) at least one thermoplastic elastomer. Also described are a method of preparing the thermoplastic molding composition, and methods of preparing articles from the thermoplastic molding composition.

Abstract: The reaction product of at least one polyanhydride and at least one amine is disclosed. A phase change ink composition and a phase change ink containing the polyanhydride/amine adduct are also disclosed.

Abstract: A polyacrylamide gel utilising a buffer system comprising Tris(hydroxymethyl)aminomethane at the concentration range 0.15 to 0.25 M titrated with hydrochloric acid to a pH between 6.5 and 7.5. The gel is substantially stable to polyacrylamide hydrolysis during storage for at extended periods and has an acceptable shelf-life of at least 6 months after storage at about 4° C.

Abstract: The object of the present invention is to provide a polyimide film, a flexible printed wiring board consisting thereof, and a polyimide molding, wherein various metal compounds are added to improve their properties and to provide them with noble properties.

Abstract: Fluorinated imides useful for imparting repellency of low surface tension fluids to thermoplastic polymers of formulae ##STR1## wherein R.sub.1 is F(CF.sub.2).sub.x --(CH.sub.2).sub.m, or F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5) (CH.sub.2)p wherein x is from about 4 to about 20, m is from about 2 to about 6, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.2 is a linear, branched or cyclic alkylene or poly(oxyalkylene) hydrocarbon group having from about 2 to about 15 carbons;R.sub.3 is selected from the group consisting of F(CF.sub.2).sub.x --(CH.sub.2).sub.m, F(CF.sub.2).sub.x --(CH.sub.2).sub.m --OC(O)--(CH.sub.2).sub.n, and F(CF.sub.2).sub.x SO.sub.2 N(R.sub.5)(CH.sub.2).sub.p OC(O)(CH.sub.2).sub.n wherein x is from about 4 to about 20, m is from about 2 to about 6, n is about 2 to about 12, p is from 1 to about 12, and R.sub.5 is an alkyl radical of from 1 to about 4 carbons;R.sub.4 is an alkyl or alkenyl group of from about 4 to about 20 carbons, andR.sub.

Abstract: Disclosed is a polyalkylene naphthalate film, preferably the homopolymer of naphthalene-2,6-dicarboxylic acid and ethylene glycol (PEN), comprising a UV absorbing compound of general formula Q--CO--CO--X (explained in the description) for quenching of the UV fluorescence at 429 nm. The polymeric film is preferably used as support for a photographic material, preferably a colour negative or colour reversal photographic material.

Abstract: The invention relates to a rubber composition which contains a tris (maleamic acid derivative)amine as an anti-reversion additive. The invention also relates to a tire having a component of such rubber composition.

Abstract: An internal mold release system is provided which comprises (a) a polysiloxane compound; and (b) an amine salt of a carboxylic acid.

Abstract: There is disclosed a styrenic resin composition which comprises 70 to 99.9% by weight of an (A) styrenic polymer having a high degree of syndiotactic configuration and 0.1 to 30% by weight of a (B) organic compound having a --NH-- group and a molecular weight of less than 10,000.According to the present invention, there is obtained a styrenic resin composition having a syndiotactic configuration which is improved in electrical insulating properties, especially in withstand voltage against direct current.

Abstract: An internal mold release system is provided which comprises (a) a polysiloxane compound; and (b) an amine salt of a carboxylic acid.

Abstract: This invention discloses an antifouling paint which can retain antifouling properties over a long period of time comprising:(A) 100 parts by weight of a film forming resin, and(B) 1-50 parts by weight of a chain organopolysiloxane containing oxyalkylene groups and having an HLB of 3-12.

Abstract: A water retaining adhesive composition prepared by polymerizing and partially crosslinking 100 parts by weight of a 20 to 35 wt % solution of the acrylic polymer with 2 to 5 parts by weight of the amine group compound, amide group compound or amino group compound at a temperature of 20.degree. C. to 80.degree. C.; adjusting the pH value of the resultant partially crosslinked polymer to 6.0 to 7.0; and then sequentially compounding 10 to 40 parts by weight of modifiers and 2 to 5 parts by weight of water retaining agent in the partially crosslinked polymer. The modifier is a polyol, a polyalcohol or a poly(ether alcohol). The water retaining agent is 2-pyrrolidone-5-carboxylate.

Abstract: Flameproofed thermoplastic molding materials comprisesA) from 5 to 93.5% by weight of a thermoplastic polyamide,B) from 5 to 85% by weight of a polyphenylene ether, of which up to 40% by weight, based on B), may be replaced by an aromatic vinyl polymer,C) from 0.5 to 20% by weight of red or black phosphorus,D) from 1 to 20% by weight of a block copolymer which has a Shore A hardness>80 and has been formed from a conjugated diene and an aromatic vinyl compound,E) from 0 to 15% by weight of an impact modifying polymer other than D),F) from 0 to 45% by weight of a fibrous or particulate filler or a mixture of a fibrous with a particulate filler,G) from 0 to 20% by weight of customary additives in effective amounts,the percentages A) to G) adding up to 100%.

Abstract: Dianthraquinonyl compounds of formula ##STR1## wherein X is a radical R.sub.1, R.sub.2, R.sub.3 or R.sub.4, andR.sub.1 is alkyl or alkenyl of not less than 8 carbon atoms,R.sub.2 is --OR.sub.1 or --SR.sub.1,R.sub.3 is --NHR.sub.1 or --N(R.sub.1).sub.2, andR.sub.4 is a group of formula ##STR2## wherein R.sub.5 is --NHR.sub.1, --N(R.sub.1).sub.2, --OR.sub.1 or --SR.sub.1 and n is 0, 1 or 2, andR.sub.6 and R.sub.7 are each independently of the other hydrogen, halogen, nitro, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy.These dianthraquinonyl compounds are preeminently suitable for the mass coloration of plastics materials, especially of polyolefins.

Abstract: Polymeric compositions characterized by their excellent thermal stability containing a polyphenylene ether or one of its blends with at least one (co)polymer of styrene and at least one compound belonging to the group of linear and/or cyclic beta diketones.Beta-diketones are capable of giving polyphenylene ether and/or its blends with styrenic polymers a long-lasting thermal stability in the molten state and of guaranteeing sufficient fluidity to ensure better processability compared to the same polymers in the known art.

Abstract: A rubber composition comprising a rubber, a filler and a diamide compound represented by the formula: ##STR1## wherein X is hydrogen, alkyl of 1 to 18 carbon atoms, alkoxy of 1 to 18 carbon atoms, alkanoyl of 2 to 19 total carbon atoms, amino, nitro, cyano, hydroxy, carboxy or halogen, and n is an integer of 2 to 12. This rubber composition is increased in its loss factor and is useful for tires and rubber vibration isolators. For example, the resulting tires prepared from the rubber composition are improved in their gripping performance.

Abstract: The present room temperature curing composition comprises an organopolysilethylenesiloxane represented by the following general formula: ##STR1## wherein R.sup.1 to R.sup.4 each represent an alkyl having up to 8 carbon atoms or a phenyl group and n is an integer of 10 or above, and an organosilane or an organosiloxane having two or more hydrolyzable groups such as alkoxy groups in the molecule. The composition can form a cured product high in rubber strength and excellent in chemical resistance.

Abstract: Rubber compositions excellent in adhesion to metals, particularly suitable for steel cord coating rubbers, having a high vulcanizing rate and little offensive smell in an unvulcanized state, which comprise 100 parts by weight of a rubber and 0.01-1 part by weight as a cobalt element content of at least one cobalt oxyketone complex represented by the following general formula: ##STR1## wherein R.sub.5 -R.sub.14 are same or different, hydrogen atom, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.6 -C.sub.14 aryl, C.sub.6 -C.sub.14 aryl-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.18 alkoxyl, C.sub.5 -C.sub.12 cycloalkoxyl, C.sub.6 -C.sub.14 aryloxyl, C.sub.6 -C.sub.14 aryl-C.sub.1 -C.sub.4 alkoxyl groups, or C.sub.2 -C.sub.18 hydrocarbon groups having at least one double bond.

Abstract: Coherent thermoplastic aggregates with very high content of pulverized mineral materials, composed of the said materials, of polyolefin polymers and/or copolymers, and possibly also of various familiar adjuvants, characterized by the fact that, in order for them to have both a volumetric mass close to or at most equal to the theoretical volumetric mass of the pulverized mineral substances entering into their composition and an excellent compatibility with redispersion polymers, the polymers and/or copolymers entering into the composition of the said aggregates in presence of a fluidizing agent are chosen within the group of thermoplastics with melting and/or softening point at least equal to 60.degree. C. and index of fluidity at least 50 (measured according to the standard ASTM D 1238) of the polyolefin type, other than those containing a polar monomer.

Abstract: A process for preparing a thermoplastic resin composition capable of giving delustered articles which comprises blending (A) 10 to 30 parts by weight of a graft-copolymer and (B) 90 to 70 parts by weight of a copolymer, the total amount of the components (A) and (B) being 100 parts by weight;said graft-copolymer (A) being prepared by adding a nonionic or cationic polymer coagulant to (1) 70 to 95 parts by weight of diene rubber having a diene content of more than 50% by weight to give a coagulated diene rubber, and then graft-polymerizing (2) 30 to 5 parts by weight of at least one monomer selected from the group consisting a vinyl aromatic monomer, a vinyl cyanide and a methacrylic acid ester onto the coagulated diene rubber, the total amount of the components (1) and (2) being 100 parts by weight; said polymer (B) being prepared by polymerizing at least one monomer selected from the group consisting of an aromatic vinyl monomer, a vinyl cyanide, an acrylic acid ester and a methacrylic acid ester.

Abstract: Incorporation of an ethoxylated amine in a sodium benzoate nucleated propylene polymer resin synergistically improves clarity as well as yellowness over what is achieved by use of sodium benzoate or ethoxylated amine alone.

Abstract: An injection blow molding grade resin or improved clarity and processability is obtained by incorporating N,N.sup.1 -ethylene bisstearamide and an ethoxylated amine into a sodium benzoate nucleated propylene polymer.

Abstract: A process for producing a thermoplastic resin molding which comprises adding to a thermoplastic resin an organic compound which is compatible with said thermoplastic resin to form a homogeneous phase at a molten state of said thermoplastic resin and causes phase separation by cooling, molding the composition by melting, and solidifying it by cooling; and the molding thus obtained.

Abstract: Monolithic refractories containing refractory aggregate, cement and a hydrocolloid.

Abstract: The present invention relates to a method of avoiding a too rapid curing reaction in production processes where a prepolymer is cured, giving an extension of the so-called pot life. By adding a small amount of a compound, whose structural formula comprises the metal-binding part ##STR1## to form complexes with transition metals catalyzing the curing reaction, an extension of the pot life is achieved without any negative influence on the qualities of the produced product. Preferably a tetracycline compound is added.

Abstract: A polyamide acid composition for preparing a polyimide which can extend the pot life of the composition comprising a solution of a polyamide acid in an organic solvent, the polyamide acid being a precursor of the polyimide, a dehydrating agent, a catalyst and a pot life extending agent which can lower a rate of conversion of the polyamide acid to the polyimide, and the process for preparing the polyimide from said polyamide acid composition. According to the present invention the pot life can be extremely extended to give the composition an enough flowability for a long time without reducing the excellent properties such as a heat resistance and an electric insulation of the obtained polyimide.

Abstract: Dispersions of hydrophobic substances in water are prepared by dissolving the hydrophobic substance together with an ionomeric polyaddition or condensation product in an organic, water-miscible solvent or a mixture of such a solvent with water, diluting the solution with water and removing the organic solvent. The dispersions are excellently suitable for the preparation of photographic recording materials.

Abstract: This invention relates to unique and novel compositions based on chemically combining a sulfonated polymer and a tertiary amine terminated polylactone composition. The resulting amine neutralized sulfonated polymer compositions have a variety of uses including those as diverse as adhesive agents, thermoplastic elastomers, additive uses wherein these materials can be utilized to compatibilize two different polymers which are normally incompatible. These compositions can also be blended with fillers and/or oils when the sulfonated polymer is elastomeric. The materials display thermoplastic character.