Abstract: A preferred embodiment of the invention provides a composition and method of treating dental metal. The composition includes a polymerizable aryl compound having at least one carboxylic acid group and at least one polymerizable group, and a polymerizable compound having at least one polymerizable group and at least one phosphorous containing group. A preferred composition includes at least 50 percent by weight of a volatile organic solvent, at least 15 percent by weight of one or more polymerizable acrylate compounds and an effective amount of a photoinitiator. At least a portion of the polymerizable compounds are multifunctional polymerizable compounds having at least three acrylate moieties. The polymerizable compounds are substantially soluble in the solvent. The composition is adapted to form a polymeric material which is adapted to adhere to metal and ceramics and to dentin. Compositions of the invention have superior adhesion to dental metals and tooth without separately acid etching dentin or enamel.

Abstract: The present invention provides a polymer that can be used as an anti-refelctive coating (ARC) polymer, an ARC composition comprising the same, methods for producing the same, and methods for using the same. The polymer of the present invention is particularly useful in a submicrolithographic process, for example, using KrF (248 nm), ArF (193 nm), or F2 (157 nm) laser as a light source. The polymer of the present invention comprises a chromophore that is capable of absorbing light at the wavelengths used in a submicrolithographic process. Thus, the ARC of the present invention significantly reduces or prevents back reflection of light and the problem of the CD alteration caused by the diffracted and/or reflected light. The ARC of the present invention also significantly reduces or eliminates the standing wave effect and reflective notching.

Abstract: Adhesive film useful for the production of semiconductor devices is produced from a siloxane-modified polyamideimide resin composition, comprising 100 parts by weight of a siloxane-modified polyamideimide resin and 1 to 200 parts by weight of a thermosetting resin ingredient.

Abstract: Use of crosslinked polymers for coil coating based on perfluoropolyethereal polymers, comprising as repeating units sequences of one or more oxyfluoroalkylenic units such as —CF2CF2O—, —CR4R5CF2CF2O— wherein R4 and R5 equal to or different from each other are chosen among H, Cl, F or perfluoroalkyl from 1 to 4 carbon atoms, —CF2CF(CF3)O—, —CFYO—, wherein Y is equal to F or CF3, having hydroxylic bifunctional termination, crosslinking being carried out with blocked polyisocyanates having at least 3 NCO groups.

Abstract: The invention relates to single step process for the preparation of poly (oxyalkylene)-alpha, omega-dicarboxylic acids of the formula HO2CCH2O(CH2CHRO)nCH2CO2H, wherein R is hydrogen, methyl or mixtures of hydrogen and methyl on the individual molecule and n is an integer of from 100 to 2500, comprising the steps of reacting, an oxidising agent such as poly (oxyalkylene glycol) with Jone's reagent in a polar solvent at a temperature in the range of 10° C. to room temperature for a period ranging between 1 hour to 12 hours, quenching the reaction by adding free radical scavanger, removing oxidation by-products from reaction mixture by adsorbing them on an adsorbing agent to obtain dicarboxylic acids in the solution, and evaporating the clear solution to obtain poly (oxyalkylene)-alpha, omega-dicarboxylic acids.

Abstract: Polymerisable resins which comprise a porphyrinogenic ring system obtained by the reaction of: (a) one or more compounds selected from the group consisting of pyrrole and N-(lower)alkyl pyrroles, any of which may be optionally substituted, and (b) a C4-C6 saturated alicyclic ketone which is capable of reacting with the 2 or 5 position of the pyrrole ring. Resin coating systems comprising the said resins.

Abstract: The instant invention pertains to a composition that can form silica thin films, wherein said composition performs well as a substrate planarizing coating when applied to a substrate and can be converted by exposure to high-energy radiation into silica thin film with an excellent electrical insulating performance. The composition for the formation of silica thin films comprises (A) a hydrogen silsesquioxane resin that contains at least 45 weight % hydrogen silsesquioxane resin with a molecular weight no greater than 1,500; and (B) solvent. A silica thin film is produced by evaporating the solvent (B), and then converting at least a portion of the hydrogen silsesquioxane resin (A) to silica by exposing the surface of the said substrate to high-energy radiation. The preferred substrate is a semiconductor substrate having at least one electrically conductive layer.

Abstract: Elastomeric silicones, especially elastomeric silicone polyethers, are prepared by combining and reacting (A) an ≡Si—H containing polysiloxane, (B) a mono-alkenyl polyether, (C) an active ingredient such as a vitamin, antimicrobial agent, sunburn prevention agent, astringent, or sex hormone, (D) an &agr;,&ohgr;-unsaturated hydrocarbon, (E) a platinum catalyst, and (F) an oil. The reaction of components (A)-(F) is allowed to continue, forming a crosslinked three-dimensional gelled network of the elastomeric silicone polyether containing the active ingredient and the oil. The compositions are useful in personal and health care applications, personal hygiene, and household cleaning applications.

Abstract: The present invention provides a curable polymethylsilsesquioxane composition that uses polymethylsilsesquioxane obtained from inexpensive precursors and that provides a hard, scratch-resistant, highly corrosion-resistant, water-repellent, and transparent cured film. The curable polymethylsilsesquioxane composition of the invention includes a polymethylsilsesquioxane having the general formula(CH.sub.3 SiO.sub.3/2).sub.n (CH.sub.3 Si(OH)O.sub.2/2).sub.mand a predetermined number-average molecular weight, Mn, from 380 to 2,000, wherein m and n are positive numbers that provide the predetermined Mn, with the proviso that the value of m/(m+n) is less than or equal to 0.152/(Mn.times.10.sup.-3)+0.10 and greater than or equal to 0.034/(Mn.times.10.sup.-3) and 10 to 250 weight parts colloidal silica.

Abstract: The present invention provides polyester/vinyl dioxolane based coating compositions containing no or essentially no volatile organic components. Oligomers for forming the coating compositions of the present invention are vinyl dioxolane end-capped polyester oligomers.

Abstract: Use for protective coatings of compositions comprising (% by wt.): A) from 10 to 60% of a A1) (per)fluoropolyethereal prepolymer having a polyisocyanic functionality obtainable by reacting a bifunctional having hydroxylic functionality, said fluoropolyethers having --CH.sub.2 OH terminations directly linked to a perfluoroalkylic group CF.sub.2 or CF.sub.2 CFX (X.dbd.Cl, F) or CF(CF.sub.3), with a polyisocyanate containing isocyanurate rings, preferably obtained by cyclotrimerization of HDI, IPDI or other monomeric diisocyanates, by utilizing an excess of isocyanate groups comprised between 10 and 80% by moles; the above fluoropolyether prepolymer can be partially or totally replaced by A2) non fluorinated polyisocyanates containing isocyanurate rings and/or hydrogenated polyisocyanate prepolymers;B) from 0.1 to 50% of a (per)fluoropolyether having bifunctional hydroxylic functionality of the type --CF.sub.2 CH.sub.2 OH, --CF.sub.2 CFXCH.sub.2 OH (X.dbd.Cl, F) or --CF(CF.sub.3)CH.sub.

Abstract: The present invention relates to a stabilized, aliphatic and/or cycloaliphatic, blocked polyisocyanates which havei) isocyanate groups blocked with CH-acidic esters,ii) a content of blocked isocyanate groups (calculated as NCO, MW 42) of 5 to 20, preferably 7 to 15 wt. %, based on the solids content of the blocked polyisocyanate andiii) a content of formaldehyde of 0.1 to 5 wt. %, based on the solids content of the blocked polyisocyanate.The present invention also related to a process for the preparation of these stabilized, blocked polyisocyanates and to their use in one-component polyurethane stoving compositions, which may be cured at relatively low stoving temperature of about 100.degree. C., as crosslinking agents for organic polyhydroxy compounds.

Abstract: A primer for promoting adhesion between an elastomeric adhesive and a nonporous substrate containing a silane-modified saturated polyester polymer and an adhesion promoter in an anhydrous solvent. The invention is also directed to a silane-modified saturated polyester polymer, and an adhesion promoter made by the reaction of a multifunctional isocyanate and an organosilane.

Abstract: The invention relates to colorant compositions consisting essentially of one or more cholesteric liquid-crystalline polymers and at least one colorant which absorbs light in the visible wavelength range. Suitable colorants are organic or inorganic pigments or dyes. Coatings comprising such colorant compositions feature color effects which are dependent on the viewing angle and which cannot be obtained by means of absorption pigments alone or by means of cLCP effect coatings.

Abstract: The present invention relates to primer for promoting adhesion of an electroconductive metal oxide coating over a plastic substrate, to a method of making such a primer, and to a method of adhering an electroconductive metal oxide coating to a plastic substrate. The primer is a carbonate diol-based crosslinked polyurethane, and is more particularly the reaction product of a carbonate diol, a low molecular weight polyol and methylene diisocyanate.

Abstract: A coating composition particularly useful as a clear coating used over a pigmented base coat that has improved resistance to marring and to acid etching when exposed to natural weathering conditions containing 40-70% by weight of film forming binder and 30-60% by weight of a volatile liquid carrier for the binder; wherein the binder containsa.

Abstract: A method of producing ABS moulding compositions wherein a solution of polymers in group (A) solvents is gradually supplied to a polymerizing mixture of previously-formed soluble rubber, aromatic mono-alkenyl compounds, ethylenically unsaturated nitrites, optional other copolymerizable compounds and optionally a group (B) solvent or a mixture of group (A) and group (B) solvents, the gradual addition of the polymer solution to the polymerizing mixture being started before the beginning of phase inversion and at a monomer conversion rate of 5 to 15% and a viscosity of the polymerizing mixture of less than 20 Pa.sec with simultaneous continuation of polymerization, the group (A) solvent is an aliphatic (C.sub.1 -C.sub.8) or cycloaliphatic alcohol, ketone, ether, ester and/or nitrile, and the group (B) solvent is an aliphatic (C.sub.4 -C.sub.10), cycloaliphatic and/or aromatic hydrocarbon.

Abstract: A method for synthesizing an apophyllite-derived 3-cyanopropyldimethylsiloxy-5-hexenyldimethylsiloxy sheet polymer (A-CM.sub.2 -HEM.sub.2); an apophyllite-derived 3-cyanopropyldimethylsiloxy-vinyldimethylsiloxy sheet polymer (A-CM.sub.2 -VM.sub.2); and an apophyllite-derived 3-cyanopropyldimethylsiloxy-n-decyldimethylsiloxy sheet polymer (A-CM.sub.2 -DM.sub.2). These polymers form gels with simple polar solvents such as acetone and therefore can be easily processed. The first two of the polymers, i.e., A-CM.sub.2 -HEM.sub.2 and A-CM.sub.2 -VM.sub.2, form gels with polar solvents carrying olefinic linkages, and these gels can be crosslinked into sheet composites having fully exfoliated organosilicon sheets in an organic matrix.

Abstract: A linear polyester is made by a process reacting polyols comprising at least two primary alcohol groups and at least one secondary alcohol or amino group and a dicarboxylic acid or a dicarboxylic acid ester in the presence of an effective amount of a lipase derived from Candida cylindracea, Candida lipolytica, Candida rugosa, Candida antarctica, Candida utilis, Chromobacterium viscosum, Geotrichum viscosum, Geotrichum candidum, Mucor javanicus, Mucor miehei, Porcine pancreas, Pseudomonas species, specifically Pseudomonas fluorescens, Pseudomonas cepacia, Pseudomonas pseudoalkaligenes, Pseudomonas alkaligenes, Thermomyces species, Rhizopus arrhizus, Rhizopus delemar, Rhizopus niveus, Rhizopus oryzae, Rhizopus javanicus, Aspergillus niger, Penicillium roquefortii, Penicillium camembertii or an esterase derived from Bacillus species, specifically Bacillus thermoglucosidasius; Mucor miehei, Horse liver, Saccharomyces cerevisiae, Pigs liver or combinations thereof.

Abstract: The present invention relates to a process for separating polyhydroxyalkanoate from a biomass, the process comprising extracting the polyhydroxyalkanoate with at least one PHA solvent selected from the group consisting of acetone, acetonitrile, benzene, butyl acetate, butyl propionate, .beta.-butyrolactone, .gamma.-butyrolactone, diethyl carbonate, diethylformamide, dimethyl carbonate, dimethyl succinate, dimethyl sulfoxide, dimethylformamide, ethyl acetate, ethylene glycol diacetate, methyl acetate, methyl ethyl ketone, 1,4-dioxane, tetrahydrofuran, toluene, xylene, and mixtures thereof.

Abstract: The viscosity of a solvent is modified by thickening the solvent with a silicone latex. A silicone latex having a plurality of crosslinked polysiloxane particles is first prepared by mixing the siloxane polymer, a surfactant, and water; emulsifying the mixture to a gel phase; diluting the emulsion with water; adding a cure package (i.e., a catalyst, a crosslinker, or both, or a self catalytic crosslinker); and then without removing the water from the latex and after the particles of siloxane polymer in the latex have been cured, mixing the latex and solvent to thicken the solvent, forming viscous liquids, gels, and pastes. Water in the latex thickened solvent composition can be stabilized by adding a silicone polyether during mixing of the latex and the solvent.

Abstract: A process for the preparation of a copolymer of carbon monoxide with an olefinically unsaturated compound in which a powder of a copolymer of carbon monoxide with an olefinically unsaturated compound is suspended in a liquid diluent. The suspension is contacted with a catalyst composition which is soluble in the diluent and which is based on a Group VIII metal and a bidentate ligand. The catalyst composition is used in such a quantity that in the polymerization mixture more than 0.1 mmoles of the Group VIII metal is present per liter of liquid phase.

Abstract: Low molecular weight siloxane fluids are thickened by silicone elastomers. The silicone elastomers are made by combining in one pot an .tbd.Si--H containing siloxane, a mono-alkenyl polyether, an alpha, omega-diene, and a low molecular weight siloxane fluid. An elastomer, i.e. gel, with polyether groups is produced. The elastomer can be swollen with the low molecular weight siloxane fluid under shear force, to provide a uniform silicone paste. The silicone paste has excellent spreadability upon rubbing, and possesses unique rheological properties in being thixotropic and shear thinning. The silicone paste can be easily emulsified with water to form a stable uniform emulsion, without using a surfactant to allow normally immiscible materials to become intimately mixed.

Abstract: A heat-sealable adhesive for dissimilar substrates is disclosed comprising an organic solvent suspension of a graft copolymer of an A-B-A terblock copolymeric rubber, olefin copolymer and olefin terpolymer. Processing conditions are improved over known adhesive preparation conditions.

Abstract: The present invention relates to a process for separating polyhydroxyalkanoate (PHA) from a biomass comprising the PHA, the process comprising: a) treating the biomass with a PHA solvent and a marginal nonsolvent for PHA; b) removing any insoluble biomass, thereby leaving behind a solution of PHA and marginal nonsolvent for PHA; and c) removing the PHA solvent from the solution, thereby resulting in a suspension of precipitated PHA in the marginal nonsolvent for PHA. Optionally, the process further comprises removing the marginal nonsolvent for PHA, thereby leaving behind the PHA. The present invention further relates to the suspension and the PHA produced by the process.

Abstract: The present invention relates to an organopolysiloxane compound having at least one group having the formula ##STR1## wherein R.sup.3 is a divalent hydrocarbon group having from 1 to 20 carbon atoms, R.sup.5 and R.sup.6 are selected from a hydrogen atom or a group having the formula --(C.sub.n H.sub.2n+1) where n has a value from 1 to 30, R.sup.4 is selected from a hydrogen atom, an alkyl group, or an aryl group, d has a value from 0 to 150, and e has a value from 0 to 150, with the proviso that the value of d+e is greater than zero. The organopolysiloxane compounds of this invention reduce the amount of foam in hydrocarbon fuel, especially in diesel fuels and jet fuels. The organopolysiloxane compounds act as foam control agents which display consistent compatibility and miscibility with additives which are frequently present in hydrocarbon fuels.

Abstract: Aqueous dispersions of vinyl polymers are disclosed. The polymers are copolymers of a vinyl halide, a vinyl ester, e.g., vinyl acetate, and a poly(alkylene glycol)-based macromonomer, e.g., poly(ethylene glycol)-maleic anhydride. Also disclosed are processes for the preparation of the aqueous dispersions which comprise forming the copolymer by solution polymerization, converting the dissolved polymer into an aqueous dispersion and removing the solvent from the aqueous dispersion.

Abstract: A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2.24 hours.25 .mu.m and heat-fusing strength of 500 to 5,000 gf/15 mm.

Abstract: A surface treatment composition which can form a coating having excellent gas barrier properties, transparency and flexibility, contains at least one silane compound component selected from the group consisting of a silane compound (A) having amino groups and hydrolytic condensation groups in their molecules, a hydrolytic condensation product (B) of the silane compound (A), and a co-hydrolytic condensation product (D) of the silane compound (A) and an organometallic compound (C); a compound (E) having at least two functional groups which can react with an amino group in its molecule; and solvent (F).

Abstract: This invention relates to solid elastomeric polyurethanes prepared by reacting, in an open mold at an isocyanate index of 80 to 120,(a) an isocyanate prepolymer having an isocyanate content of 3 to 15% by weight and a number average molecular weight of 550 to 20,000 prepared by the reaction of(1) organic polyisocyanates having 2 to 3 NCO groups, and(2) isocyanate-reactive polyester polyols having two to three isocyanate-reactive hydroxyl groups and a number average molecular weight of 400 to 10,000 and prepared in the presence of an esterification catalyst, and optionally containing other isocyanate-reactive compounds,wherein the equivalent ratio of isocyanate groups to isocyanate-reactive groups is 1.2:1 to 34:1;(b) a diol chain extender, optionally in admixture with a crosslinker and/or an amino-containing chain extender and/or crosslinker;(c) 0.001 to 10% by weight, based on the weight of the isocyanate prepolymer, of a catalyst; and(d) 0.

Abstract: A process for preparing a polyketone is disclosed. This comprises polymerising together carbon monoxide, ethylene and optionally at least one C.sub.3 to C.sub.10 alpha-olefin in the presence of a solvent and a catalyst composition derivable from a palladium salt, an anion which is either non-coordinating or weakly coordinating to palladium and a phosphate ligand characterised in that the solvent is either a C.sub.4 to C.sub.10 tertiary aliphatic alcohol or a mixture of a C.sub.4 to C.sub.10 tertiary alcohol and up to 80% by volume of an aprotic solvent. The preferred tertiary alcohols are tertiary butyl alcohol and tertiary amyl alcohol. The aprotic solvents can be an aliphatic ketone or cyclic aliphatic ether; preferred aprotic solvents are THF and 1,4-dioxane.

Abstract: The present invention is directed to a heat resistant product prepared by reacting a) a mixture of i) an organic polyisocyanate, ii) an epoxide group containing compound, and iii), optionally, an organic compound containing an active methylene group and containing at least one electron withdrawing group adjacent to the methylene carbon, and b) at least one polyol which is free of any tertiary amine groups, with the reaction being conducted at an NCO:OH equivalent ratio of from 2:1 to 5:1. The reaction is conducted in the presence of a tertiary amine-free isocyanurate catalyst selected from the group consisting of oxides, alkoxides, hydroxides and carboxylates of alkali metals, alkaline earth metals, transition metals and quaternary ammonium.

Abstract: The present invention relates to a curable silicone release coating composition comprising a mixture of an organopolysiloxane containing at least two alkenyl groups per compound, an organohydrogensilicon compound, inhibitors having a boiling point of up to 130.degree. C. at atmospheric pressure, inhibitors having a boiling point of at least 170.degree. C. at atmospheric pressure a platinum group metal-containing catalyst, and optionally a diluent. The silicone release coating compositions are stable when stored at room temperature, especially when the composition is used on a coating roll for the production of a thin films. The compositions of this invention also quickly form a cured film having good release properties for adhesive materials at a comparatively low temperatures.

Abstract: The present invention relates to a curable silicone release coating composition comprising (A) an organopolysiloxane having at least two alkenyl groups per molecule, (B) an organohydrogensiloxane having at least two silicon-bonded hydrogen atoms per molecule, (C) a siloxane resin having silicon-bonded hydrogen groups, (D) a platinum group metal-containing catalyst, and optionally (E) an inhibitor. The compositions of this invention are useful as release coatings for pressure sensitive adhesives.

Abstract: A fibrillar copolyester having excellent heat resistance, a reinforcing effect and a large aspect ratio is produced with high dimensional stability and efficiency. A specific fibrillar copolyester having an aspect ratio of at least 3.0 is produced by polymerizing with shearing specific hydroxy aromatic carboxylic acid monomers as starting materials in a nonpolar solvent having 10 or more carbon atoms. Such hydroxy aromatic carboxylic acid monomers preferably have acetylated hydroxyl groups when copolymerized. Additionally, substituents other than hydrogen atoms optionally may be present on the rings of the aromatic monomers when forming the fibrillar copolyester.

Abstract: A process for the copolymerization of carbon monoxide with an olefinically unsaturated compound in which a solid particulate material is suspended in a liquid diluent in which the polymer to be produced forms a suspension. The monomers are contracted in the liquid diluent containing the suspended solid particulate material with a catalyst composition which is based on a source of a Group VIII metal and a boron hydrocarbyl compound.

Abstract: A modified hydrogen silsesquioxane (HSQ) precursor is disclosed, along with methods for depositing such a precursor on a semiconductor substrate and a semiconductor device having a dielectric thin film deposited from such a precursor. The method comprises coating a semiconductor substrate 10, which typically comprises conductors 12, with a film of a modified HSQ film precursor. The HSQ film precursor comprises a hydrogen silsesquioxane resin and a modifying agent, preferably selected from the group consisting of alkyl alkoxysilanes, fluorinated alkyl alkoxysilanes, and combinations thereof. The method further comprises curing film 14, wherein the inclusion of the modifying agent inhibits oxidation and/or water absorption by the film during and/or after curing. It is believed that the modifying agent modifies film surface 16 to produce this effect.

Abstract: Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo[2.2.1]heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclohexanes, and derivatives thereof, applications of these compounds in fields such as adhesives and paints, utilization of these compounds in flame-retarding, thermal stabilization and compatibilization methods of resins, thermosetting molding compositions and thermosetting expansion-molding compositions making use of these compounds, as well as polymeric microspheres also using these compounds. These compounds are expected to find wide spread industrial utility as various excellent properties can be obtained by using them.

Abstract: A biodegradable block copolymer made from the transesterfication of a poly(propylene fumarate) prepolymer and a poly(ethylene oxide) prepolymer. The block copolymer poly(propylene fumarate -co- ethylene oxide) is capable of crosslinking at body temperature. Crosslinking requires an appropriate crosslinking monomer and an initiator. The biodegradable block copolymer has utility as a vascular implant became it can be injected as a fluid into the vascular system and crosslinked in situ.

Abstract: A room temperature-curable organopolysiloxane composition is disclosed, comprising (A) 100 parts by weight of an organopolysiloxane terminated with a silanol group or an alkoxy group, (B) from 0.1 to 30 parts by weight of an organosilicon compound containing more than 2, in average, of hydrolyzable groups bonded to the silicon atom per molecule, (C) from 1 to 650 parts by weight of an oil-absorbing filler which has been prepared by impregnating (a) a porous filler with (b) a volatile organic compound which is incompatible or partly compatible to component (A) and compatible with an organic oily substance in an amount of from 1% by weight based on the weight of the porous filler up to a saturation amount and, if desired, (D) a requisite amount of a curing catalyst. The composition exhibits satisfactory adhesion to a substrate in such adhesion operation as an FIPG system without requiring wiping of organic oily contaminants on the substrate, such as hydrocarbon oils, e.g.

Abstract: A process for preparing poly(urethane/urea) prepolymers and aqueous poly(urethane/urea) dispersions (PUDs) therefrom, the poly(urethane/urea) polymers having high heat resistance and good water resistance. The method employs a water soluble volatile organic solvent, such as acetone, at a level of 0.1-5%, based on final dispersion weight, a level which does not require removal for purposes of flash point considerations.

Abstract: Provided is a soft contact lens obtained by visible ray polymerization of a mixture comprising one or more of unsaturated carboxylic acid(s) and one or more visible ray polymerization initiator(s), or a mixture comprising one or more of unsaturated carboxylic acid(s), one or more of unsaturated carboxylate(s) and one or more of visible ray polymerization initiator(s).

Abstract: The invention relates to light-scattering polymethacrylate resins with high heat- and weather resistance, which resins may optionally be colored with dyestuffs or pigments. The desirable properties are achieved by addition of a combination of:particles which are light-scattering, and are crosslinked and contain phenyl groups;UV protectants; andradical scavengers.The inventive polymethacrylate molded articles are advantageously employed in illumination technology.

Abstract: Aromatic polyester resins having improved color characteristics obtained incorporating in the resins in the preparation phase of the resin by polycondensation of a diol with an aromatic bicarboxylic acid a violet toner formed of 9,10 anthraquinone -2-hydroxy-4-p-toluidine or having an absorption spectrum comparable to that of the above anthraquinone compound.

Abstract: A catalyst composition comprisinga) a palladium compound,b) an anion, andc) an asymmetric phosphorus bidentate ligand of the general formula R.sup.5 R.sup.6 P--Q--CHR.sup.9 --PR+7R.sup.8, wherein Q is a 1,2-ferrocenyl bridging group, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are identical or different optionally polar substituted hydrocarbyl groups and R.sup.9 is hydrogen or an optionally polar substituted hydrocarbyl group;a process for the preparation of linear alternating copolymers of carbon monoxide with an aliphatic -olefin having at least 3 and at most 10 carbon atoms, which process comprises contacting a mixture of the monomers with a said catalyst composition; and a linear alternating copolymer of carbon monoxide with an aliphatic -olefin having at least 3 and at most 10 carbon atoms which copolymer has an isotacticity of 95% or more.

Abstract: A composition for surface treatment, which comprises the following components (I), (II) and (III) as essential components:(I) at least one compound capable of forming a coating film with a contact angle of at least 70.degree. against water;(II) a solvent capable of dissolving the component (I); and(III) a solvent having an evaporation rate lower than the component (II).

Abstract: Disclosed herein is a process for the manufacture of polyesters which involves heating polymerizable monomers, oligomers or low molecular weight polymers in a mixture of a solvent and non-solvent. The polymerization by-product is codistilled from the boiling solvent/non-solvent mixture.

Abstract: Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo[2.2.1]heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclohexanes, and derivatives thereof, applications of these compounds in fields such as adhesives and paints, utilization of these compounds in flame-retarding, thermal stabilization and compatibilization methods of resins, thermosetting molding compositions and thermosetting expansion-molding compositions making use of these compounds, as well as polymeric microspheres also using these compounds. These compounds are expected to find wide spread industrial utility as various excellent properties can be obtained by using them.

Abstract: The present invention relates to a release coating composition comprising an organopolysiloxane having fluorine containing organic groups and alkenyl groups, an organohydrogensiloxane, and a platinum-containing catalyst. The present invention also relates to a release coating composition comprising an organopolysiloxane having fluorine containing organic groups and silicon-bonded hydrogen groups, an alkenyl functional organopolysiloxane, and a platinum-containing catalyst. The curable silicone release coating compositions of this invention have excellent release properties from various tacky substances, especially silicone-based pressure sensitive adhesives, after curing, and also have excellent bonding characteristics when applied to various substrates.

Abstract: Provided by the present invention are novel diguanamine derivatives, led by 2,5/2,6-bis(4,6-diamino-1,3,5-triazin-2-yl)-bicyclo[2.2.1]heptanes and 1,3/1,4-bis(4,6-diamino-1,3,5-triazin-2-yl)-cyclohexanes, and derivatives thereof, applications of these compounds in fields such as adhesives and paints, utilization of these compounds in flame-retarding, thermal stabilization and compatibilization methods of resins, thermosetting molding compositions and thermosetting expansion-molding compositions making use of these compounds, as well as polymeric microspheres also using these compounds. These compounds are expected to find wide spread industrial utility as various excellent properties can be obtained by using them.