Abstract: In a method for manufacturing an integrated circuit arrangement, trenches that define active zones are formed in a substrate. A first insulating layer that fills the narrow trenches is conformally deposited and is structured with a mask and anisotropic etching such that spacers arise at sidewalls of the wide trenches and supporting locations arise in a region of the wide trenches. The surface of the active zones is uncovered by forming a second insulating layer with an essentially planar surface and by a planarizing layer erosion on the basis of chemical-mechanical polishing or conventional dry etching.

Abstract: A laminated glass to be used as a front windshield of an automotive vehicle including a head-up display system. The laminated glass comprises outboard-side and inboard-side glass plates. An intermediate film is interposed between the inboard-side and outboard-side glass plates to bond the glass plates to each other. An optically functioning film such as a polarization-direction changing film is bonded to the outboard-side glass plate. At least one of the inboard-side glass plate, the outboard-side glass plate and the intermediate film is colored in a manner that a color difference between first and second parts of the laminate is not higher than 2.4, in which the first part includes the optically functioning film while the second part is other than the first part.

Abstract: The characteristics of a desktop telephone terminal can easily be enhanced or modified with the use of external devices such as personal computers. Different types of accessory interface cartridges are used for the different types of external devices. To facilitate attachment of the interface cartridges both electrically and mechanically, a stand is provided for supporting the terminal at different desired tilted positions and an accessory connection module (ACM) is mounted in the stand. The ACM has an electrical connection to the underside of the terminal and has one or more electrical connectors which are aligned with apertures in the stand. These apertures are accessible when the terminal is on the stand and permit plugging in of one or more of the cartridges.

Abstract: The invention relates to a transparent substrate, in particular glass substrate, provided with a thin-film stack including at least one metal film with properties in the infrared, in particular a low-emissivity one, arranged between two coatings which each include at least one anti-reflection film based on dielectric material, and at least one protective film based on a sacrificial metal or a partially or fully oxidized sacrificial metal or a sacrificial metal alloy placed between the said metal film and one of the said coatings. According to the invention, the film placed directly below and/or above the said metal film contains at least one of the noble metals Pd, Au, Ir, Pt and Rh. The low-level addition of one or more of these metals to the others, namely the film placed below and/or above the metal film, leads to an increase in the chemical stability and the hardness of the thin-film stack.

Abstract: A pane with low energy transmission. The pane has a laminated structure of at least one glass sheet tinted in its mass and preferably having antisolar properties, and at least one sheet of polymer material containing a UV-absorbent, the at least one glass sheet and at least one sheet of polymer material being chosen to give a light transmission factor TL.sub.A of less than 60%, an energy transmission factor TE such that the ratio TL.sub.A /TE is greater than 1 and a transmission factor TUV less than 0.5%, the total thickness of the pane being preferably between 2.5 and 8 mm. The application of the pane, notably, as a lateral pane, rear window pane, roof or sun roof for transportation vehicle is disclosed.

Abstract: In a laminated glass pane comprising two glass sheets (1, 2) and a transparent support film (4) having an infra red reflecting surface coating (3), connected to the two glass sheets (1, 2) by adhesive layers (5, 6), the first adhesive layer (5) has a thickness of at most about 50 .mu.m. The second adhesive layer (6) preferably has a thickness of 0.76 mm.

Abstract: Copolymerizable benzophenone photoinitiators of the formula I ##STR1## wherein 1, k=0, 1, 2.R.sub.1 =divalent organic group having 1 to 25 carbon atoms;R.sub.2 =H or methyl; andR.sub.3, R.sub.4 =organic group having 1 to 25 carbon atoms.X, Y=hydrogen, halogen or (C.sub.1 -C.sub.25) groups containing N, S, and/or O;and method of making the photoinitiators.The photoinitiators overcome the leaching problem with prior photoinitiators in radiation curable polymer applications. Radiation curable polymers, cured polymers, and coated articles are also disclosed.

Abstract: A glass fiber mat includes glass fibers saturated with a binder and then cured. A predetermined pattern of relatively high and low concentrations of binder is formed throughout the length of the glass fiber mat. The pattern produces at least one portion of the mat having a relatively high concentration of binder adjoining a portion of the mat having a relatively low concentration of binder. The pattern of high and low binder concentration is produced during a wet process. Liquid binder is either selectively applied to the glass fibers via an applicator or selectively removed from the glass fibers via a vacuum. Cover panels having predetermined slot configurations are used with vacuum boxes to create the desired pattern. Such glass fiber mats can be cut along an area of high binder concentration to produce cut edges which resist breaking and tearing. Shingles formed from such glass fiber mats have improved tear resistance and pliability.

Abstract: A pane with low energy transmission. The pane has a laminated structure of at least one glass sheet tinted in its mass and preferably having antisolar properties, and at least one sheet of polymer material containing a UV-absorbent, the at least one glass sheet and at least one sheet of polymer material being chosen to give a light transmission factor TL.sub.A of less than 60%, an energy transmission factor TE such that the ratio TL.sub.A /TE is greater than 1 and a transmission factor TUV less than 0.5%, the total thickness of the pane being preferably between 2.5 and 8 mm. The application of the pane, notably, as a lateral pane, rear window pane, roof or sun roof for transportation vehicle is disclosed.

Abstract: A laminated and insulated glass window construction, especially for use in entryway glass lites. The window includes first and second glass sheets mounted in facing, spaced apart relationship. An adhesive layer is disposed on an outer surface of the first glass sheet and a third glass sheet is adhered to the first glass sheet by the adhesive layer. A decorative element may be disposed within the space created between the first and second glass sheets. This decorative element may be a separate panel or a resinous layer adhered to an inside surface of one of the first and second glass sheets.

Abstract: The invention provides a laminated glass and a method of producing the same. This laminated glass includes first and second transparent glass plates and an interlayer film interposed therebetween. This interlayer film has functional ultra-fine particles which have a particle diameter of up to 0.2 .mu.m and are dispersed therein. Due to the incorporation of the ultra-fine particles thereinto, the interlayer film is provided with various additional functions such as heat insulation, ultraviolet ray absorption and the maintenance of a sufficient radio transmittance. Therefore, the laminated glass becomes suitable as an architectural or automotive laminated glass.

Abstract: Composition and process for the preparation of high temperature stable continuous glass fibers with an upper temperature use limit of 2300.degree. F. are provided. The compositional formulation, in mole percent, is 62-85% SiO.sub.2, 10-20% Al.sub.2 O.sub.3, 5-15% MgO, 0.5-5% TiO.sub.x, and 0-5% ZrO.sub.2. The continuous fibers are prepared by an economical direct melt method, and demonstrate high tensile strength, high Young's modulus, and low linear thermal shrinkage characteristics. Friction pads containing these high temperature stable continuous glass fibers are also provided.

Abstract: There are provided a prepreg for a printed circuit board which comprises a glass cloth impregnated with a flame retardative resin composition comprising a (A) resin composed of a (a) styrenic polymer having syndiotactic configuration, a (b) polymer having compatibility with or affinity for the component (a) and further containing polar group, and a (c) thermoplastic resin other than the components (a) and (b) and/or a rubbery elastomer; a (B) halogenated polystyrene in which the amount of halogen atoms contained in halogen compounds generated under specific conditions is at most 1000 ppm by weight; a (C) flame retardant aid; an (D) organic filler or inorganic filler; and the above glass cloth, and also a substrate for printed circuit which comprises the prepreg or a laminate comprising a plurality of the prepregs laminated on each other, at least one side of the prepreg or laminate being laminated with a metallic layer.

Abstract: A sheet for laminated safety glass comprising polyvinyl butyral resin containing a multivalent metal-substituted aromatic chelate compound in an amount effective to control adhesion of the sheet to glass.

Abstract: A method (38) for packaging a microelectronic device (10) and a device (10) packaged by the method (38). The method (38) includes a step of providing (42) a first material (16) on an active surface of the microelectronic device (10). The first material (16) has a first temperature coefficient of expansion. The method (38) also includes steps of heating (46) the microelectronic device (10) and the first material (16) to a predetermined first temperature and molding (48) a second material (20) about the microelectronic device (10) and the first material (16). The second material (20) has a second temperature coefficient of expansion less than that of the first material (16). A final step of cooling (50) the first material (16), the second material (20) and the microelectronic device (10) provides a packaged microelectronic device (30).

Abstract: A solid substrate, the surface of which has been modified to introduce reactive groups of a hydrophilic nature thereon, the modification being provided by a primer comprising a first polysaccharide containing as reactive groups amino and hydroxyl groups; and a process for the preparation of such solid substrate.

Abstract: Optical device has a carrier substrate with a surface consisting of a plastic material with a predetermined index of refraction and with first mechanical and/or chemical characteristics. The surface is coated and the coating has second mechanical and/or chemical characteristics which are different from the first characteristics. The index of refraction of the coating is different from the predetermined index of refraction of the carrier substrate surface material, varying steplessly through at least a part of the coating, up to the end index of refraction and the surface of the coating.

Abstract: A glass/plastic laminate useful in glazing applications which has improved optical quality is provided by controlling the incidence of optical defects induced during manufacture by particulate contaminates by applying a soft plastic film to the outboard side of the plastic surface of the laminate and entrapping such contaminates during the lamination process in the soft plastic film.

Abstract: A two component adhesive comprising a natural or synthetic rubber first component and a second component capable of destabilizing the natural or synthetic rubber first component slowly can be utilized in conventional application equipment designed for applying single component adhesives is provided.

Abstract: In preparing rough-surfaced sheet of polyvinyl butyral (PVB), a fraction of stiffly resilient particles of crosslinked PVB are present in the formulation which on exiting an extrusion die opening mechanically interfere with and roughen the surface of the sheet being formed.

Abstract: An optical recording medium is provided with a masking layer on a side of a recording layer for receiving a reproducing beam. The masking layer is prepared from that containing photochromic dye molecules having absorption at the wavelength of the reproducing beam and causing a photon mode reaction by absorbing the reproducing beam to be reduced in absorption.

Abstract: The present invention comprises a vehicle accessory mounting button, windshield arrangement and a method for making the same which uses nonelastomeric, thermosetting, structural adhesives, preferably in film form, to adhere the accessory mounting button to the interior surface of a windshield. The adhesives provide outstanding long-term adhesion and good accessory assembly vibration performance even under rigorous climate conditions while simultaneously being compatible with conventional autoclaving processes used in windshield manufacturing. Thermosetting structural adhesives suitable to achieve the objectives of this invention include modified epoxies, which have a cure temperature below 325.degree. F., a modulus of elasticity at 85.degree. C. of at least about 10,000 psi when cured, and are compatible with current windshield manufacturing processes.

Abstract: A plastic sheet, preferably of plasticized partial polyvinyl butyral, for a laminated safety glazing, having means dispersed on its surface, preferably comprising a multiplicity of spaced projections, capable of resisting adhesion to a rigid panel, such as glass, of such a glazing when the sheet is laminated to the panel, the area of the sheet surface without such dispersed means having high affinity for adhesion. The projections physically block adhesion of a dispersed area of the sheet to the panel in that the means on the sheet surface have no or weak interfacial adhesion. The multiplicity of space projections also have low or no affinity for adhesion when in blocking contact with each other or with another plasticized partial polyvinyl butyral surface and thereby increase blocking resistance.

Abstract: Plasticized polyvinyl butyral sheet containing epoxy resin in amount effective, after prolonged exposure to light, to counteract reduction of adhesion between the sheet and a photoreactive component with which it will be in potential contact. The photoreactive component is typically a dielectric such as a metal oxide layer of a heat-wave-reflective or electrically conductive multi-layer coating, which coating can optionally be supported on (a) a thermoplastic substrate sandwiched between two of such polyvinyl butyral sheets forming a prelaminate for use as a constituent of a laminated glazing panel or (b) a glass sheet component of such glazing panel.

Abstract: Plasticized polyvinyl butyral sheet containing epoxy resin in amount effective, after prolonged exposure to light, to counteract reduction of adhesion between the sheet and a photoreactive component with which it will be in potential contact. The photoreactive component is typically a dielectric such as a metal oxide layer of a heat-wave-reflective or electrically conductive multi-layer coating, which coating can optionally be supported on (a) a thermoplastic substrate sandwiched between two of such polyvinyl butyral sheets forming a prelaminate for use as a constituent of a laminated glazing panel or (b) a glass sheet component of such glazing panel.

Abstract: A light-transmitting laminated panel having increased resistance to impact-induced rupture sequentially includes: a) a glass layer, b) an optically clear layer of a plasticized polyvinyl butyral matrix containing discrete particles of crosslinked polyvinyl butyral integrally randomly dispersed throughout the matrix which enhance the impact-resistance of the panel and are visually indistinguishable from the matrix polyvinyl butyral, and c) another glass layer, the laminated panel at a specific pummel adhesion having greater mean break height than that of a laminated panel containing layers a), b) and c) but without the impact-resistance-enhancing particles of crosslinked polyvinyl butyral in layer b). An amount up to 40 weight % of the particles is incorporated into the matrix polyvinyl butyral before preparing the laminated panel.

Abstract: Mandrels for use in the manufacture of nickel shells by vapour deposition of nickel from gaseous nickel carbonyl. The mandrels comprise a body formed of a composite material of a matrix, for example, a ceramic material or an organic polymeric compound, and a filler, for example, metal, metal oxides, carbon in particulate form and having the same coefficient of thermal expansion as nickel. The invention includes processes of manufacturing the shells using the composite mandrel and shells made thereby. The shells have improved non-deformability in operation and are of use as molds in the mass production of plastic articles.

Abstract: A urea-formaldehyde resin modified with a water-insoluble anionic phosphate ester is used as binder in the preparation of glass fiber mats using a hydroxyethyl cellulose white water system. High tear strength glass fiber mats can be produced in a hydroxyethyl cellulose white water system using such a binder.

Abstract: Preparation of plasticizer-containing polyvinylbutyrals (PVB) which are suitable for the production of elastic interleaving films with improved adhesion-reducing properties for laminated glass panes of siliceous glass. They comprise, as adhesion-reducing additives, active amounts of salts of metals of groups Ia, IIa, IIb and IIIa of the periodic table of the elements and naturally occurring resin acids or derivatives of resin acids, and, if appropriate, customary stabilizers and auxiliaries. They are prepared by mixing the components and plasticizing the component mixtures. They can be shaped thermo-plastically by customary methods and are suitable for the production of plasticized PVB films which have advantageously improved adhesion-reducing properties with respect to siliceous glass panes and can advantageously be used for the production of siliceous laminated glass panes.

Abstract: An audio tape cassette comprising a cassette shell, a pair of hubs which is rotatably positioned in the cassette shell, a magnetic tape which is wound around the hubs with its magnetic layer facing outward, guiding parts which are positioned in the cassette shell and guide the running direction of the magnetic tape, and a felt pad which is positioned between the hubs at the front of the shell, which contacts a back of the magnetic tape to press the magnetic tape to a magnetic head, wherein the magnetic tape has a back coating layer which comprises a pigment and a binder having a coefficient of friction not larger than 0.4 against the felt pad which has good runnability, and wherein generation of wow, flutter and modulation noise is apparent and edge damage of the magnetic tape is prevented.

Abstract: The present invention is a fire/heat barrier laminate comprising a light weight glass scrim impregnated with a layered mineral which scrim is laminated to one or both sides of an impact structural layer made of an aromatic polyamide fiber.

Abstract: Holographic films are disclosed that contain a binder having the following formula:(M).sub.w (VAc).sub.x (VOH).sub.y (VOS).sub.zwherein M is a fluoromonomer; VAc is vinyl acetate; VOH is vinyl alcohol; and VOS is vinyl trimethylsilyl ether; and wherein w, x, y, and z are percentages by weight; w is 5 to 30, x is 40 to 80, y is 0 to 20, and z is 2 to 30; said copolymers containing 3 to 23% by weight fluorine. These imaged films are particularly suited for lamination to glass in head-up display applications.

Abstract: A method for stabilizing shelf life conductivity of conductive coatings such as polypyrrole or nickel sulfide on a substrate such as fiberglass, by incorporating in such conductive coating a polyphenol or a polysiloxane. The polyphenol is derived from a phenolic material in the form of a phenol-formaldehyde monomer or an oligomer of phenol-formaldehyde, and the polysiloxane is derived from a siloxane. Upon heating, the phenolic material cures to a polyphenol and the siloxane is converted to a polysiloxane, forming the stabilizing material on the conductive polypyrrole or nickel sulfide coated substrate. The phenolic material is preferably incorporated directly into the solution formulation for preparing the conductive nickel sulfide or polypyrrole on the substrate, and the polyphenol stabilizer is formed together with the conductive coating on the substrate by heating.

Abstract: A laminated glass structure is provided containing at least one glass sheet, a plastic layer provided at the bonding surface of the glass sheet, and a functioning layer having single-or multi-layered films between the bonding surfaces of the glass sheet and the plastic layer, with the functioning layer having a controlling layer in contact with the plastic layer, which contains as the major component an oxide including Cr and at least one of Ti, Zn, Sn, Ni, Zr, Al, Si, Mg and Fe, and wherein the controlling layer has an atomic ratio of Cr to atoms other than oxygen of 60% or lower, and the film thickness of the controlling layer is 10 .ANG. to 500 .ANG..

Abstract: Provided are methods for laminating ordered polymers such as PBZT/sol-gel glass microcomposite film layers by first roughing the bonding surfaces of such film layers and then inserting therebetween a PEEK resin adhesive layer and compressing the film and adhesive layers together at sufficient temperature and pressure to laminate such layers. In one embodiment the ordered polymer layers are hot-pressed before surface roughing, stacking and laminating of film and adhesive layers. The invention also includes the novel laminates prepared thereby which exhibit high tensile strength, high compressive strength and good interlaminar strength, suitable for high-performance structures in e.g. aircraft, spacecraft or other structures or vehicles.

Abstract: Siloxane organic hybrid polymers and a method of making them by condensation polymerization reaction of organoalkoxysilane in the presence of organic film-forming polymers are disclosed wherein cerium oxide is incorporated for the attenuation of ultraviolet radiation.

Abstract: Provided is a method for laminating PBZT/fusible sol-gel glass microcomposite film layers by applying an adhesive of fusible sol-gel glass to the bonding surfaces of such films and compressing the film layers and the so-formed adhesive layer therebetween, at sufficient temperature and pressure to laminate the film and adhesive layers together. The sol-gel glass infiltrant and adhesive may be of the same or different materials. Desirably, the bonding surfaces of such films are roughened before application of the adhesive layer therebetween. The invention also includes the laminates prepared by the above method which laminates exhibit good coherent bonding between layers, high tensile strength and good interlaminar strength between layers for fabrication into durable high-strength space-age structures.

Abstract: The present invention is directed to a phenolic resin composition useful for preparing a binder for reinforced composites, to a binder for reinforced composites made using the phenolic resin composition, and to a reinforced composite made using the binder. The phenolic resin composition of the present invention contains an aqueous mixture of: (a) a resole formed by reacting phenol with formaldehyde in the presence of an ortho directing catalyst at a mole ratio of formaldehyde to phenol ranging from about 0.7:1 to about 3:1 and (b) a water-soluble borate, wherein the composition contains at least about 0.02 equivalent of the ortho directing catalyst per mole of phenol, has a pH at least about 7 and contains from about 0.02 to about 0.5 mole borate per mole of phenol. When the ortho directing catalyst has a cation that forms an insoluble material with a borate anion, the cation is removed after the resole is formed and prior to adding the water-soluble borate.

Abstract: A fireproof barrier system for a composite structure is provided. A sheet ablative material is bonded onto the composite structure to be fireproofed. A protective phenolic resin skin is deposited on the sheet to protect the ablative material from handling and water damage while further improving the fire performance of the system. The protective skin may have between about 50 to 80 parts per hundred of aluminum trihydrate mixed therein. The protective phenolic resin skin may further be glass-reinforced.

Abstract: A novel composition is a solution in an organic solvent of an electron donor-acceptor complex of a conjugated aromatic polyazomethine compound and a Lewis acid compound. This composition is coated on a transparent support and the solvent is evaporated to produce an optical device. Decomposition of the polyazomethine-Lewis acid complex coated on the substrate produces a new optical device comprising a film of the polyazomethine compound on the substrate. Compositions of the present invention can also be used for the preparation of optical wave guides, optical switching elements, fibers, and dielectric materials.

Abstract: A glazing unit comprises a substrate ply and a laminating ply laminated to a surface of the substrate ply. A coating on a laminated surface of the substrate ply is a film stack comprising a film of electrically conductive material covered by a film of dielectric material. The film of dielectric material immediately adjacent the laminating ply comprises a layer of silicon dioxide immediately adjacent the laminating ply and a layer of dielectric material of refractive index greater than 1.5 between the silicon dioxide and the conductive material. Applications include, for example, glazing units for solar load reduction and electrically heated glazing units.

Abstract: The specification discloses fire retardant composites which are curable at ambient temperatures and based on resorcinol-formaldehyde resins having specified molar ratios of phenol and aldehyde and specific viscosities.

Abstract: These polymers are copolymers or overpolymers having a substrate of styrene butadiene copolymer overpolymerized with an amine substituted alkyl acrylate. The polymers promote adhesion between organic and inorganic substrates and unsaturated polymers.

Abstract: A composition capable of being applied as a film and hardening to form a protective layer on the back of a mirror comprises a fluid organic resin and a corrosion inhibitor selected from the group consisting of dicyandiamide and metal or acid salt thereof. The organic resin may be any thermoplastic or thermosetting resin suitable for coating the reflective and other metallic layers of the mirror. Exemplary resins include alkyd resins, acrylic resins, modified alkyd resins, polyesters, urethane oils, vinyl halide polymers or copolymers, oleoresinous varnishes, nitrocellulose compositions, phenol-formaldehyde resin varnishes, and epoxy resins. Preferably, the resin is an alkyd or modified alkyd resin. The dicyandiamide or metal or acid salt or dicyandiamide may be present in an amount from about 0.1 to 20 weight percent, preferably 0.5 to 10 weight percent, of the organic resin coating system. The resin system should be essentially free of lead and lead salts.

Abstract: A process for producing laminated safety glass is disclosed, comprising depositing a film which comprises at least one function layer on a plastic sheet, inserting the sheet between a plurality of further layers, such as two polyvinylbutyral sheets which are in turn enclosed by glass panes, such that the plastic sheet projects beyond the edges of the other layers, clamping the plastic sheet along its projecting sections, and laminating the layers. A clamping device for performing the process and a laminated safety glass produced by the process are also disclosed.

Abstract: Curable polyphenylene ether-polyepoxide compositions containing 1-methylimidazole as the primary curing catalyst have improved latency properties and are useful in the preparation of laminates and bonding sheets for printed circuit boards.

Abstract: Oriented polyester films primer coated in-line with a hydrolyzed aminosilane are disclosed. These silanes in the unhydrolyzed state have the formula:XSi(R.sup.2).sub.a (R.sup.3).sub.bwherein X is a radical selected from the group consisting of H.sub.2 NR.sup.1 HNR.sup.1 --H.sub.2 NR.sup.1 HNR.sup.1 HNR.sup.1 --; the R.sup.1 's are the same or different groups selected from the group consisting of C.sub.1 to C.sub.8 alkyl or phenyl; R.sup.2 is a hydrolyzable group selected from the group consisting of C.sub.1 to C.sub.8 alkoxy, an acetoxy group or a halide; R.sup.3 is a nonreactive, nonhydrolyzable group selected from the group consisting of C.sub.1 to C.sub.3 alkyl or phenyl; (a) is an integer ranging from 1 to 3; (b) is an integer ranging from 0 to 2, with the sum of (a) and (b) being 3.The hydrolyzed aminosilane is applied to the film in-line as an aqueous solution at any suitable stage during manufacture of the film, i.e.

Abstract: There is disclosed automobile glass which is engraved with identifying indicia of a size whereby it can be easily viewed. Particularly, the automobile glass is of the conventional laminated type and the depth of the engraving is of sufficient depth whereby the indicia cannot be removed or obliterated. In one embodiment the engraving of the indicia is of a sufficient depth to expose a portion of the polymeric sandwiched material.

Abstract: Abrasion resistant, tintable coating compositions which are based on siloxane/silica hybrid coating resins and which also contain at least about 3 percent but less than about 20 percent of a tintability enhancing compound selected from the group consisting of polyhydroxyl-functional compounds and butylated urea formaldehyde compounds. These coating compositions are especially useful for providing both abrasion resistance and high levels of tinting and, optionally, absorbance of ultraviolet radiation. Tetrahydroxybenzophenone is a preferred tintability enhancing compound that also absorbs UV light.

Abstract: A composite comprising two or more layers of fiber-reinforced, crosslinked epoxy resin, wherein adjacent layers of the reinforced, crosslinked epoxy resin are interspaced with a layer of a thermoplastic polymer, which thermoplastic polymer comprises a linear polymer of carbon monoxide with one or more olefinically unsaturated compounds, wherein the monomer units originating from carbon monoxide and the monomer units originating from olefinically unsaturated compounds, are present in an alternating arrangement.