Abstract: A rigid rod polymer in which at least 50% of the recurring groups correspond to the formula; ##STR1## Included in the invention are processes for preparation of the above rigid rod polymer and using such polymer as well as compositions employing the above rigid rod polymer.

Abstract: The invention relates to a method of manufacturing a composite laminate, preferably a cross-ply laminate, in which process unidirectionally oriented (UD) fibres (3) are provided with matrix material (7) and, together with a pre-formed non-flowing UD composite or cross-ply laminate, passed through a laminating zone (13) in layers of at least two different orientational directions. More particularly, the invention relates to the manufacture of composite material which is pre-eminently suited to be used as a supporting substrate for printed wire boards. The method according to the invention is directed in particular to the utilisation of a double belt press, both for making the preformed non-flowing UD composite and for the manufacture of the final laminate. The invention also comprises printed wire board (PWBs) and multilayer PWBs.

Abstract: The present invention relates to ophthalmic lenses with a refractive index from 1.50 to 1.51, which are the cured product of compositions comprising 60-99% wt % of at least one poly(allyl carbonate) of a polyhydroxy alcohol, said polyhydroxy alcohol having from 2 to 20 carbon atoms and from 2 to 6 hydroxy groups in the molecule, less than comonomers, and 0.01 to 10 wt % of a radical initiator. These ophthalmic lenses have the advantages of improved tintability and a low rejection rate in their production due to the reduction in prerelease during polymerization casting. Preferably, the ophthalmic lenses and the use of diallyl phthalate type oligomers in ophthalmic lenses.

Abstract: A spun-bonded nonwoven composite web has randomly laid continuous matrix filaments (average linear density per filament less than 25 denier) and one or more continuous reinforcement filament (average linear density per filament which exceeds 20 denier and exceeds the average linear density per filament of said matrix filaments by at least 10 denier). The continuous matrix filaments are at least partially bonded together to form the web. The one or more continuous reinforcement filament is enmeshed in the web without substantially bonding to other filaments in the web, so as to exhibit pulled fiber behavior when the web is born.

Abstract: For producing woven fabrics for air bags and other industrial applications, an intermingled unsized synthetic filament yarn is used with a yarn titer of 100-1000 dtex. The individual filaments of the yarn have a titer not exceeding 5 dtex. The yarn exhibits a mean opening length of 2-10 cm, the coefficient K1 for the stability of the intermingling points of the yarn exceeds 0.6, and the coefficient K2 for the stability of the intermingling points of the yarn exceeds 0.3. This yarn can be used to manufacture industrial woven fabrics with the required properties, in particular woven fabrics for air bags, in a cost-effective manner.

Abstract: The invention relates to a polymeric optical amplifier doped with lanthanide ions, which are present in the amplifier in the form of a complex.The invention also relates to novel electrically neutral lanthanide complexes which can be applied with advantage in the above-described polymeric optical amplifiers. These complexes comprise host molecules which readily complex with the lanthanide and fully encapsulate it.

Abstract: A process for reducing the content of organic and inorganic halogen in an aqueous solution of a nitrogen-containing epihalohydrin-based resin, in which process the aqueous resin solution is subjected to an electrodialysis treatment. The aqueous resin solutions obtained by the process are used as additives in the production of paper, board and paper board, in particular as wet-strength agents.

Abstract: The present invention generally relates to an alkyl glycoside of the formula (I): RCH.sub.2 O(G).sub.x H, wherein R is an alkyl group having a total of 8-12 carbon atoms and containing 2-4 groups of the formula --CH(CH.sub.3)-- in its carbon chain; G is a monosaccharide residue; and x is 1-4. The invention also relates to the use of the alkyl glycoside as a surfactant in the cleaning of hard surfaces. A composition containing an alkyl glycoside of formula (I), a complexing agent and a solubilizer is also disclosed.

Abstract: A process for manufacturing a multi-layer printed wire board, also referred to as a multilayer, comprising at least two electrically insulating substrates with electrically conductive traces or layers provided on at least three surfaces thereof, in which process, by means of lamination under pressure, a cured basic substrate based on a UD-reinforced synthetic material, provided on either side with traces, is combined with and bonded to a back-up substrate, wherein during the laminating process the back-up substrate is added to the basic substrate, the back-up substrate comprising a UD-reinforced cured core layer provided at least on the side facing the conducting traces of the basic substrate with a still plastically deformable (flowable) adhesive layer, and such a pressure is exerted on the laminate as to bring said cured core layer of the back-up substrate into contact or practically into contact with the conducting traces of the basic substrate, and the space between these traces is filled with the adhesiv

Abstract: The present invention is a flame retardant polyketone polymer composition which comprises: (a) a bicyclic phosphorus flame retardant compound, such as one containing one or more pentaerythritol phosphate alcohol moieties, as exemplified by bis(pentaerythritol phosphate alcohol) carbonate; (b) an intumescent flame retardant compound containing nitrogen and phosphorus, such as melamine phosphate; and (c), optionally, a monophosphate ester compound to enhance the compatibility of the composition in the polymer substrate, such as a liquid aryl-group containing phosphate ester compound or melamine phosphate, and the monophosphate ester compound is triphenyl phosphate.

Abstract: A composition comprising ammonium thiocyanate and an amount of an anti-caking agent selected from amines and amine salts, which is effective to reduce the caking of the ammonium thiocyanate, is disclosed. Also disclosed is a method for reducing the caking of a composition which contains ammonium thiocyanate which comprises the step of incorporating in said composition, 0.0001-1.0% by weight, based on the weight of the ammonium thiocyanate, of an anti-caking agent selected from amines and amine salts and the use of a compound selected from amines and amine salts, as an anti-caking agent for ammonium thiocyanate. It has surprisingly been found that minor amounts of these anti-caking agents provide an excellent reduction in the caking of ammonium thiocyanate compositions.

Abstract: The ignition of an aqueous ethanol fuel is essentially improved by using a water soluble adduct of a polyol having 3-10 hydroxyl groups and ethylene oxide and/or propylene oxide, the molecular weight of the adduct being 350-10,000. The fuel is in the form of a solution and contains 70-96% by weight of ethanol, 2-10% by weight of water and 0.5-20% by weight of the ignition improving adduct.

Abstract: This invention relates to antimicrobial compositions comprising a phenoxyarsine as the active antimicrobial substance and a solvent, which is a compound of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen or lower alkyl, m is 0 or 1 and n is 1 or 2. The compositions are suitable for the antimicrobial finishing of synthetic materials.

Abstract: The present invention provides a paper sizing composition which comprises a sizing agent selected from cyclic dicarboxylic acid anhydride or alkyl ketene dimer, a stabilizing and/or dispersing agent which is an amphoteric polymer and a polyaluminum compound.

Abstract: The present application relates to a flame retarded polycarbonate resin composition containing for flame retardancy a hydroxy-terminated aromatic oligomeric phosphate composition of the formula: ##STR1## where R is a hydrocarbyl group derived from an aliphatic or aromatic diol, Ar is an alkyl-substituted or unsubstituted phenyl group, n is from about 0 to about 10, and the phosphate composition contains a predominant amount of phosphate where n ranges from 0 to 1.

Abstract: Novel flame retardant compounds for polymers are disclosed that include 1,4-cyclohexanedimethanol bis(diphenyl phosphate)s. These can be synthesized by reacting 1,4-cyclohexanedimethanol and a diphenyl halophosphate, such as diphenyl chlorophosphate, in the presence of a catalyst, such as magnesium chloride, in an appropriate solvent, such as hexane.

Abstract: A process for the production of a peroxide masterbatch composition comprising the steps of: a) providing a mixture of an ethylene-propylene copolymer and 10-150 parts by weight, based on the weight of the ethylene-propylene copolymer of a polyoctenamer rubber to a mixing device, (b) adjusting the temperature of the mixture to a temperature at least 2.degree. C. below the melting point of the lowest melting peroxide to be included in the masterbatch composition, (c) adding 20-60 percent by weight, based on the weight of the mixture, of a peroxide initiator to the mixture, with mixing, while maintaining the temperature of the mixture at least 2.degree. C.

Abstract: Uncoated fabrics for the production of airbags, particularly said airbags. There fabrics are thermally stable and set to a specific air permeability via the linear density-dependent choice of the numbers of threads and via a relaxation in a wet process. The fabric is constructed of yarns of polytetramethyleneadipamide having a yarn linear density of 200-500 dtex and a filament linear density <7 dtex. The fabrics produced have an air permeability <100 l/dm.sup.2 xmin. They offer security against thermal failure when used in manufacturing airbags.

Abstract: A composition, adapted to be used in the beneficiation of coarse potash ore fractions in the substantial absence of extender oil, which consists essentially of: (a) water; and (b) a long chain primary aliphatic amine, for example, a tallow-based amine, having an iodine value of from about 20 to about 70 cg/g, preferably from about 40 to about 60 cg/g. The composition may further contain an acid to assist in the dispersion of the amine in water.

Abstract: A polymerization method carried out in the presence of unsaturated organic peroxide chain transfer agents is disclosed. Also disclosed are (co)polymers and oligomers made by this process and articles of manufacture comprising one or more (co)polymers or oligomers made by this process. Furthermore, the use of these unsaturated organic peroxides as chain transfer agents is disclosed. The present process reduces the severe retardation of polymerization observed for unsaturated organic peroxide chain transfer agents of the prior art and, in some cases, even improves the monomer conversion in comparison to the control.