Abstract: A method for making long chain hydroxyl terminated polydiorganosiloxanes with low cyclics content via condensation polymerization employs a selective catalyst. The catalyst includes a salt-anion complex and a free acid.

Abstract: A method of curing a free-radically polymerizable composition includes contacting a curable composition with at least one metal oxide selected from the group consisting of magnesium oxide, ferrous metal oxides, aluminum oxide, nickel oxide, silver oxide, and combinations thereof. The curable composition includes: free-radically polymerizable compound; and a beta-dicarbonyl compound represented by the formula (I) or a salt thereof, wherein: X1 and X2 independently represent a covalent bond, wherein each R4 independently represents H or alkyl having from 1 to 18 carbon atoms; R1 and R2 independently represent a hydrocarbyl or substituted-hydrocarbyl group having from 1 to 18 carbon atoms, and R3 represents hydrogen, or a hydrocarbyl or substituted-hydrocarbyl group having from 1 to 18 carbon atoms, or taken together any two of R1, R2, or R3 form a five-membered or six-membered ring; an organic peroxide; and a quaternary ammonium halide. Articles including the cured compositions are also disclosed.

Abstract: Provided are spunbond polyester mats using an improved curable composition. The curable composition comprises a reaction product of an amine and a reactant in the form of an amino-amide intermediate. To the amino-amide is added an aldehyde or ketone to form the curable binder composition. The composition when used as a binder in the mat is cured to form a water-insoluble binder which exhibits good adhesion and thermodimensional stability.

Abstract: The present invention relates to unsaturated polyester resin or vinyl ester resin compositions that are essentially free of cobalt; that are curable with a peroxide component; and that, comprise a polymer containing reactive unsaturations, optionally a reactive diluent, and a dioxo component; which dioxo component consists of one or more dioxo-compounds having a calculated reduction energy (CRE), being the energy difference in kcal/mole between the lowest energy conformations of the radical anion and the corresponding neutral molecule as calculated by means of the Turbomole Version 5 program, in the range of from ?5 to ?30 kcal/mole. These resin compositions show a reduced gel-time drift tendency. The present invention further also relates to objects and structural parts prepared from such unsaturated polyester or vinyl ester resin compositions by curing with a peroxide. The present invention finally also relates to methods of peroxide curing of unsaturated polyester resin or vinyl ester resin compositions.

Abstract: Supported catalyst composition for polymerization of olefins comprising: (i) a titanium compound, a magnesium compound and at least one electron donor compound; (ii) an oxygen containing polymer support; and (iii) a cocatalyst comprising at least one aluminum compound.

Abstract: Plastic article having at least one side provided with a coating for increasing the melting point of the article and for increasing temperature induced plastic flow characteristic of the article. Process of and apparatus for manufacturing such article.

Abstract: A process of forming a polyolefin catalyst component includes contacting a metal compound of the formula MR2 with a diketone to form a metal bis(diketonate) having the formula M(OCRCR′CRO)2, wherein M is a Group IIA or Group VIIB metal, and wherein R and R′ are each hydrocarbyls or substituted hydrocarbyls having from 1 to 20 carbons atoms. Catalyst components, catalysts, polyolefin polymers, catalysts systems, and methods of preparing same are disclosed.

Abstract: Compression molded pigmented door skins fabricated by compression molding a pigmented, curable, unsaturated polyester sheet molding compound containing a co-curable unsaturated monomer, a low profile additive, and a microvoid-reducing thermoplastic polymer, exhibit uniform stainability while maintaining a low linear thermal coefficient of expansion. Such door skins are suitable for preparing wood grain textured exterior insulated doors which exhibit minimal thermal deflection when exposed to interior/exterior temperature differentials, even at eight foot door heights. The doors may be stained without first applying a seal coat.

Abstract: A photocurable compound prepared as a starting material by incorporation therein of a composition comprising a fluorescein compound photoreducing dye, tribenzylamine, and at least one specific peroxide permits production of a shaped article which, on exposure to visible light, exhibits high curability and acquires hardness virtually indiscriminately on the obverse and reverse sides of the article. A mixture comprising both or either of an unsaturated polyester resin and an epoxy acrylate resin which are photocurable compounds, glass fibers, and a specific peroxide, is convenient for the production of specific cured shaped articles particularly by the filament winding technique or the drawing technique.

Abstract: Thermosettable ethylenically unsaturated resins are rendered storage stable by the addition of a complex formed by mixing (a) at least one quinonoid compound and (b) at least one imidazole compound. The reactivity of these storage stable resins with curing agents is not significantly reduced by the presence of the stabilizer complex.

Abstract: A photopolymerizable composition comprising (a) an addition polymerizable compound having a boiling point of 100.degree. C. or high under an atmospheric pressure, (b) a photoinitiator, and (c) a benzene derivative can provide a cured film having high strength suitable for producing, e.g. printed circuit boards.

Abstract: A liquid coating composition is provided which comprises, as a binder, an addition polymer containing on average 2 or more pendant activated unsaturated groups and, as a crosslinking agent, a compound containing on average 2 or more primary amino groups. The pendant activated unsaturated groups of the addition polymer are based upon fumaric, maleic and/or itaconic acid and/or anhydrides thereof. The liquid coating compositions of the present invention provide the particular advantage of rapid cure at ambient temperatures.

Abstract: A peroxide curing agent composition containing 20-90% of an unsaturated alkyd diluent which is fluid at room temperature, is disclosed. The curing agent is useful for the curing of unsaturated polyesters and eliminates the problem of the bleeding of harmful phthalate diluents from such cured polyesters, while providing excellent stability of the diluted peroxide.

Abstract: Ethylenically unsaturated carboxylic acids and/or carboxylic anhydrides are grafted onto polyolefin blends by a process in which the polyolefin blend consists of from 5 to 49 parts by weight of an ethylene/propylene block copolymer having an ethylene content of less than or equal to 20% by weight and from 51 to 95 parts by weight of a homopolymer or copolymer of ethylene, and the resulting graft copolymer blends are used as adhesion promoters, in particular for polyethylene/adhesion promotor/steel composites, and for the preparation of ionomers.

Abstract: The invention relates to a sealing compound which contains unsaturated polyester resins, crosslinking agents, light initiators, and elasticity-modifying agents as well as, optionally, adjuvants, pigments, and/or dyes. The invention also relates to a method for the production of the sealing compound and to its use on or in building structures.

Abstract: A cathode ray tube of the type which comprises a tube body having a face plate, and a safety panel bonded to the front surface of the face plate through an interlayer of a cured adhesive resin composition. The adhesive resin composition comprises an unsaturated alkyd resin obtained from an unsaturated dicarboxylic acid and a dihydric alcohol, a polymerizable monomer capable of dissolving the unsaturated alkyd resin an organic peroxide catalyst, an organometal compound accelerator, and a chelating agent for the metal in the organometal compound accelerator.

Abstract: Disclosed is a resin composition which comprises a mixture of a polyester, an acrylate urethane, in about stoichiometric proportion with the polyester up to about 10% excess polyester over stoichiometric, and a liquid acrylate reactive diluent sufficient to give the resin composition the viscosity of less than 5,000 centipoise. The polyester resin is the reaction product of a polyhydroxy compound having at least three hydroxyl groups, and an aromatic compound that is at least difunctional in acid, anhydride, or ester groups, where the proportion of the polyhydroxy compound to the aromatic compound is such that the polyester has about 150 to about 250 mole % excess hydroxyl groups. The acrylate urethane compound is the reaction product of a hydroxy acrylate and an isocyanate having at least two isocyanate groups, where the hydroxy acrylate and a hydroxy acrylate having a single hydroxyl group are equimolar (when a diisocyanate is used) with the isocyanate .+-.10 mole %.

Abstract: The invention is a process for monitored cross-linking of unsaturated polyester resins in the presence of a metal-ion-containing accelerator and an organic peroxide initiator, complemented by promotor in some cases. According to this process, the cross-linking is carried out in the presence of one of the compounds from the group consisting of alizarin, sodium alizarinesulfonate, 3-nitroalizarin, chinizarine, or purpurin, where the substituents are H atoms or OH, NO.sub.2, SO.sub.3 H, or SO.sub.3 Na groups with the restriction that at least one of them should be other than H, which is present in a ratio of from 0.005 to 0.5, preferably 0.01 to 0.1 percent (mass/mass), compared to the mass of the polyester resin, and cross-linking is trailed by the color change in the system. The invention permits all of the chemical-technological processes involved in the processing of unsaturated polyester resins to be monitored visually.

Abstract: In curing an unsaturated polyester resin in the presence of an organic peroxide added thereto, 4-methyl-2,4-diphenyl-pentene-1 is added to the mixture of the unsaturated polyester resin with the organic peroxide to enhance the curing properties.

Abstract: Anaerobically-curing compositions are described comprising (A) a polymerizable monomer; (B) a halogen-containing compound as a first initiator component; (C) an amine, organic sulfimide or perfluoroalkyl sulfonanilide as a second initiator component; and (D) an inhibitor of free-radical polymerization. These compositions are particularly suitable as adhesives and may be formulated as thread-locking adhesives or may be modified by the addition of various modifying polymers to obtain desired properties such as increased viscosities or pressure-sensitive properties.

Abstract: Anilines substituted in the m- and p-position by an alkyl radical and a halogen atom are eminently suitable for use as accelerators for cold-hardening unsaturated polyester resins.

Abstract: Polyesters containing co-condensed polyalkylene glycol residues as the sole air-drying components are, providing they satisfy certain requirements, an excellent basis for photopolymerizable unsaturated polyester resins which harden under UV-light very rapidly even in extremely thin layers.

Abstract: A laminated film structure composed of a polyester film and an electroconductive metal layer laminated to at least one surface of the polyester resin film, characterized in that said polyester film is an unstretched film of a cured aromatic polyester having a crosslinking degree of not less than 70%, a swelling degree of not more than 30 and an elongation at room temperature of not less than 10%; and a process for producing said film structure.

Abstract: A photo-initiator system of a polyester resin is disclosed which consists of an oxime carbonate of a vicinal diketone (I), a photo-reducible dye (II) and an amine (III). This system is capable of polymerizing and curing unsaturated polyester resins by irradiation with visible light to provide coatings, adhesives, castings and fibre reinforced composites.The formulae of the ingredients of the system are ##STR1## where R' and R" are independently alkyl, aryl or aralkyl (R' preferably being CH.sub.3 and R" C.sub.2 H.sub.5) ##STR2## wherein X=Br or I on at least 2 positionsY=H, Br, IZ=H, COOM, COOR wherein R=C.sub.1 -C.sub.5 alyl.M=H, K, Na, Li, NH.sub.4(there preferably being 4X substituents which are Br, and Z preferably being --COOM or --COOR), and wherein also 4Y substituents may be present and preferably be I) and (III) ##STR3## wherein R.sub.1 is H, alkyl, hydroxy-substituted alkyl, aryl or aralkyl. R.sub.2 is independently alkyl, hydroxyl substituted alkyl, aryl or aralkyl.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, chlorine, phenyl, dialkylamino of 2-4 carbon atoms or alkyl or alkoxy each of up to 18 carbon atoms; R.sub.2 is hydrogen, chlorine, bromine or alkyl or alkoxy each of up to 4 carbon atoms; R.sub.3 and R.sub.4, which can be the same or different, each is hydrogen or alkyl of up to 6 carbon atoms; R.sub.5 is hydrogen or alkyl or alkanoyl each of up to 4 carbon atoms; and R.sub.6 is hydrogen or methyl, with the proviso that not all of R.sub.1 to R.sub.6 simultaneously are hydrogen, are effective photosensitizers, especially for photopolymerization of unsaturated compounds and for hardening of printing dyes.

Abstract: A coating composition is disclosed which is curable under the influence of ultraviolet light and which comprises a U.V.-curable binder, a photoinitiator and as accelerator a polycyclic condensation product of formaldehyde or acetaldehyde and an aliphatic or cycloaliphatic diprimary 1,2-diamine. The U.V.-curable binder is preferably an adduct containing at least one isocyanate group of (a) an acrylic or methacrylic hydroxy ester having 5 to 20 carbon atoms and (b) a polyisocyanate having 4 to 44 carbon atoms and 2 to 4 isocyanate groups.

Abstract: The present invention relates to a photopolymerization process comprising irradiating a photopolymerizable material with U.V. light of wave length 250 to 400 nm in the presence of a photosensitizing amount of a photoinitiator of formula I, ##STR1## in which R is hydrogen or halogenR.sub.1 is alkyl, cycloalkyl, benzyl, optionally substituted phenyl or (a) ##STR2## either R.sub.2 is optionally substituted alkyl, benzyl, C.sub.6 H.sub.5 --CH.dbd.CH--, 2-thienyl, 2-furyl, 2-(3-chloro)benzothienyl or optionally substituted phenyl, andR.sub.3 is hydrogen or R.sub.2 and R.sub.3 form a radical of formula (b) ##STR3## in which X is a direct bond, --O--, --S--, --CH.sub.2 --, ##STR4## and R.sub.4 and R' have one of the significances of R.sub.2 and R, respectively,with the proviso that when R.sub.1 is (a) R.sub.3 is hydrogen and R.sub.2 and R.sub.4 are free from halogen atoms.

Abstract: A process for the preparation of a curable molding or coating compound containing an unsaturated polyester resin is disclosed. The process comprises substantially uniformly incorporating into said resin effective amounts of a cerium promoter and a catalytically active tertiary butyl peroxy ester or a tertiary amyl peroxy ester of a non-.alpha.-branched aliphatic or aromatic, mono- or dicarboxylic acid.

Abstract: A family of non-crystallizing acrylated polyester resins are described in which the polyesters are formed by reacting a mixture of 100 mol percent dicarboxylic acids of which 50 to 100 mol percent is isophthalic acid; 0 to 25 mol percent is terephthalic acid; and 0 to 50 mol percent is one or more dicarboxylic acids other than isophthalic or terephthalic; with an excess of two or more primary glycols, the maximum mol percent of any one glycol being dependent on the amount of isophthalic acid with the upper limit being established by the line A-B of the FIGURE of the Drawing.

Abstract: Compounds added to initiate photopolymerization of monomers to produce polymeric coatings include compounds of the formula ##STR1## wherein Ar is phenyl or naphthyl,R is hydrogen, alkyl with 1-4 carbon atoms, alkoxy with 1-4 carbon atoms, halogen, dialkylamino with 1-4 carbon atoms in each alkyl group, carboxyl, or alkoxycarbonyl with 1-4 carbon atoms in the alkoxy group,X is alkylene having 3 to 6 carbon atoms or alkylene having 6 to 72 carbon atoms interrupted by at least one member selected from the group consisting of ##STR2## and the precursor of X being a polyol having 3 to 6 hydroxyls and having a hydroxyl number of from 100 to 1850,R.sub.1 is hydrogen or methyl,n is a number with a value from about 2 to about 5, andn+m is a number with a value from about 3 to about 6.

Abstract: Storage stable, fluent, ambient temperature polymerizable resin compositions comprise:(a) an unsaturated polymerizable polyester resin;(b) a monomeric polymerizable ethylenic compound;(c) a gelation inhibitor;(d) a gelation promoter comprising a tertiary amine; and(e) an effective, stabilizing amount of a copper compound which is soluble in said composition in combination with a quaternary ammonium salt.Such compositions containing inert fillers are also disclosed.