Abstract: Strands of starch-oil chemically treated glass fibers can have improved performance in high humidity environments. Such strands have a sole starch, film-former modifier which is a poly(oxypropylene) organic alcohol. Starch-oil sizings for treating glass fibers having polyethylene glycol are converted to improved starch-oil sizing compositions by substituting the poly(oxypropylene) organic alcohol for the polyethylene glycol. The strands of chemically treated glass fibers with improved high humidity performance are also made more lubricious by having a moisture-reduced residue of the starch-oil aqueous chemical treating composition with the poly(oxypropylene) organic alcohol. The more lubricious characteristic is effected by having present a starch mixture of a high amylose cationic starch and a highly crosslinked starch of approximately 50 percent amylose and wax in an amount less than the starch mixture but more than the oil and a cationic lubricant wetting agent and bacteriocide or fungicide.

Abstract: An apparatus for the manufacture of mineral fibers from a drawable material such as glass products, poured in the molten state onto a first centrifuging wheel before being conducted to a following wheel, each wheel transforming part of the molten material into fibers and dispatching the excess to the following wheel. A cooling water supply channel is arranged in the axis of each centrifuging wheel and is ridgidly coupled to the rotational movement of said wheel. Means of the helicoidal type, which are fixed to the channel, caused the water to advance to the end of the channel.

Abstract: A method and apparatus for rapidly cooling optical fiber comprising passing optical fiber through an enclosure having a flat black internal surface, the walls of said enclosure having symmetrically oriented perforations or other symmetrically oriented means of passing cryogenic gas through the walls to contact optical fiber within the enclosure, the enclosure surrounded by a gas plenum to which gas is supplied to facilitate the symmetrical passage of cryogenic gas through the walls, whereby the cryogenic gas symmetrically contacts and cools the optical fiber and also serves to cool the walls of the enclosure.

Abstract: Coated fabrics produced with more flexible bundles of filaments -are possible with the flexible bundle of filaments of the present -invention. The flexible bundle of filaments comprise a plurality of -sized filaments having the moisture-reduced partially cured coating and -impregnant of an aqueous chemical coating composition. The composition -has a vinyl-containing interpolymer with one or more comonomers and a -self-crosslinking polymeric material and water. Optionally, there may be -present one or more aqueous emulsifiable or dispersible waxes, aqueous -dispersible or emulsifiable plasticizers and/or one or more aqueous -dispersible or emulsifiable diene-containing elastomers. The -diene-containing elastomer is always present when the comonomer of the -ethylene-containing interpolymer tends to decrease the noncrystallinity -of the interpolymer or increase the glass transition temperature of the -interpolymer.

Abstract: A chalcogenide glass rod and/or a fluoride glass rod are covered with a thermally shrinkable synthetic resin tube, the resulting assembly being heated under vacuum to produce a preform, and a thermally shrinkable synthetic resin tube with a plurality of said preforms formed in a bundle and inserted thereinto is drawn again under heating.

Abstract: A novel process for the production of glass fiber products is provided. By the inventive process glass fibers are combined with a heat curable binder and then consolidated onto a conveyor where a glass fiber mass is placed onto the surface of the consolidated mass of glass fibers and heat curable binder. The resulting product is then subsequently cured and then coated on-line with a suitable coating. Glass fiber products made by the novel inventive process are also disclosed.

Abstract: Chemically treated glass fibers in the form of continuous bundles of glass fibers and chopped bundles of glass fibers are provided that have good handleability and thermal aging characteristics in reinforcing thermoplastic polymers. The chemically treated glass fibers have a dried residue of an aqueous chemical treating composition. The aqueous chemical treating composition has two aqueous soluble, dispersible, or emulsifiable film forming polymers which can be either epoxy polymers and polyurethane polymers or epoxy polyurethane copolymers and polyurethane polymers and an amino alkyl functional silane coupling agent and at least a second silane coupling agent which can be a lubricant modified amine organo functional silane coupling agent, a polyamino organo functional silane coupling agent, an epoxy organo functional silane coupling agent or a vinyl organo functional silane coupling agent and a reaction product process aid.

Abstract: An improved process for the preparation of a glass fiber product useful as range insulation for pyrolytic self-cleaning oven units is disclosed. An integral part of the inventive process involves a two stage curing of the insulation product. When range insulation produced by the inventive process is used in pyrolytic self-cleaning oven units, the insulation emits reduced levels of smoke and odor during the self-cleaning cycle.

Abstract: A metal foil laminate including at least one sheet of metal foil directly bonded to one face of a sheet of glass fiber reinforced polyester and epoxy resin, and a continuous process for preparing such laminates.

Abstract: The degree of cure of a traveling carbonaceous polymeric material (on 48), formed (at 34) from a plurality of chemical reactants (32) and subjected to a curing process (at 42 and 44) is determined by directing (with 86 and 88) into the traveling material radiations including a first infrared radiation (A1) from the group thereof adapted to selectively interact with molecular resonance vibrations at frequencies that are characteristic of respective terminal functional groups of atoms involved in reactions that take place in the material during the curing process. Also directed into the material is a second infrared radiation that is either of the kind (R) that does not exhibit substantial selective interaction with molecular resonance vibrations in the material or of the kind (A2) that is adapted to selectively interact with molecular resonance vibrations at a frequency that is characteristic of groups of atoms forming the backbones of the polymeric molecules in the material.

Abstract: A hot melt, non-aqueous glass size composition consists of an ethylene-ethylacrylate copolymer, a micro-crystalline wax, a phenolic-modified terpene resin and a silane.

Abstract: The use of an antistatic agent in the production of blowing wool insulation is disclosed. The antistat is a quanternary ammonium salt which is applied from an aqueous solution. The antistat reduces the tendency of the small fiber particles to dispense during pneumatical application.

Abstract: Method and coating composition for coating newly formed glass at relatively low temperature and without prior "hot end" treatment. In this method, the composition is applied in a conventional manner by spray, dip, or roller coating, the composition comprising a carboxylic functional resin in dilute aqueous solution, the solution also including a lubricity-imparting additive. The carboxylic functionality of the resin renders it water dispersible and also renders the finished coating receptive to conventional label adhesives, decorating printing, and so forth. The use of this composition, without cross-linking of the coating, protects the surface of the glass until sterilization at which time the composition is removed by hot water washing; the treated glassware is then sterilized by exposure to dry heat temperature above 400.degree. F. without surface discoloration.

Abstract: Molded glass fiber parts are formed by depositing a phenolic resin and liquid polyisocyanate on the glass fibers as they are emitted from a fiber forming means, accumulating the glass fibers as a pack and molding the pack in contact with a tertiary amine to cure said resin and polyisocyanate and to produce a molded glass fiber part.

Abstract: Method and coating composition for coating newly formed glass at relatively low temperature and without prior "hot-end" treatment. In this method, the composition is applied in a conventional manner by spray, dip, or roller coating, the composition comprising a carboxylic functional resin in dilute aqueous solution, the solution also including a crosslinking agent for the resin and a lubricity-imparting additive. The carboxylic functionality of the resin renders it water dispersible and also renders the finished coating receptive to conventional label adhesives, decorating printing, and so forth.

Abstract: Method and apparatus are disclosed for scrubbing effluent gases arising during the production of mineral fibers and particularly during the production of glass fiber insulation blankets or mats. The scrubbing is effected by the use of opposed jets of water, the interaction of which produces a planar dispersion of water droplets across the path of the effluent gases. The jets are preferably located within the gas collecting ducts closely adjacent the region of gas emergence to prevent buildup of glass fibers and binder on the duct walls. The water is separated from the gas, following which the water and gas are both subjected to further treatment before being recycled or released.

Abstract: A glass size composition comprising a trimellitic anhydride anhydride-containing unsaturated polyester imparts to glass fibers superior reinforcing characteristics when used to reinforce sheet molding compounds.

Abstract: Glass fibers coated with a size composition comprising gamma-aminopropyltriethoxysilane and an alkoxysilane are disclosed. When a glass fiber size composition of this invention is employed on glass fibers incorporated into plastics reinforced by the incorporation of the fibers, the resulting product exhibits improved strength properties.

Abstract: Chemically treated glass fibers can be produced having improved wet-out and resin demand performance when used for reinforced polymeric matrices which have good strength properties. The treated glass fibers have the dried residue of an aqueous treating composition having a water soluble, dispersible or emulsifiable epoxy novalac type polymer, glass fiber coupling agent, a water soluble, dispersible or emulsifiable poly(oxyalkylene-oxyethylene) polyol copolymer, wherein the ethylene oxide portion is present in an amount in the range of about 10 to about 40 weight percent of the copolymer, and the copolymer is present in an effective lubricating amount, and water in a sufficient amount to allow the aqueous treating composition to be applied to the glass fibers.

Abstract: A method for producing an elongated optical fiber element is disclosed. The method envolves preparing two optical fiber elements by removing their outer coating layers to expose bare glass fiber portions. The glass fiber portions are melt-joint together. A material which is chemically compatible with the removed outered layer is then molded about the joined bare glass portions. A thermoplastic resin is then extruded continuously over the molded material in order to form a single elongated optical fiber element. The bonding method produces a structure which can withstand bending stress exerted on the coated optical fiber and prevent the concentration of any stress in the bonded area.

Abstract: An aqueous sizing composition with a cationic lubricant, amide compound, and water soluble or dispersible polyol which is used to produce wet chopped sized glass fiber strands. The sized wet or dried chopped glass fiber strands can be used to produce non-woven glass fiber strand mat, having good tensile strength, and good flexibility and reduced tendency for static generation. The wet chopped glass fiber strands also have good flowability in bulk handling apparatus.

Abstract: An aqueous sizing composition with a cationic lubricant, amide compound, and water soluble or dispersible polyol which is used to produce wet chopped sized glass fiber strands. The sized wet or dried chopped glass fiber strands can be used to produce non-woven glass fiber strand mat, having good tensile strength, and good flexibility and reduced tendency for static generation. The wet chopped glass fiber strands also have good flowability in bulk handling apparatus.

Abstract: The rate at which glass optical fiber can satisfactorily be coated with a primary plastics coating by a liquid application method is enhanced by causing the fiber to enter the liquid contained in a coating vessel via a suction tube in which a partial vacuum is maintained by an air induction device. Optionally a funnel is used to deflect the exhaust away from the incoming uncoated fiber.

Abstract: A process for producing an optical fiber is described, wherein a fiber that has been drawn from a glass preform is coaed with a resin composition curable with heat, ultraviolet rays, or electron beams, and then cured, wherein before the drawn fiber contacts another solid object, the fiber is cooled by being passed through a cooling means filled with a non-reactive liquid material which is the same as said resin composition except that it is free from any compound that catalyzes curing of the resin, selected from among a curing agent, a cross-linking agent, curing catalyst, curing accelerator, sensitizing agent and a reactive diluent, and then the fiber is coated and with said resin composition and cured.

Abstract: A glass batch, and a fiberizable glass composition, comprising 2 percent B.sub.2 O.sub.3 is disclosed. The glass fibers have improved dry strength and water durability and have a surface boron concentration, in weight percent, of about 2.5.

Abstract: Sizing compositions having polyurethane latex, cationic silane having unsaturation and polyamino silane are provided. The compositions are used to treat glass fibers to produce sized glass fibers having improved physical properties such as integrity. The sized glass fibers when used with molding compounds yields molded articles with improved physical properties like tensile strength, flexural strength and articles with impact strength.

Abstract: Glass fiber sizing compositions and methods of making same and glass fibers containing dried residue of the sizing composition are provided that yield improved efficiencies, reduced migration, reduction in drying conditions, reduced cleaning time and improved housekeeping. The sizing composition, method and glass fiber strand involves the use of a high solids sizing composition having a water solubilized, condensation, cross-linkable, unsaturated polyester resin having free carboxyl groups either pendant or terminal or pendant and terminal and an amino-containing silane and an amount of water to yield a sizing composition having an amount of total solids in the range of about 18 to about 40 weight percent. In addition, other additives can be included in the sizing composition such as additional polyester resins, additional coupling agents, thermoplastic polymers, anti-static agents, film-former modifiers, wetting agents, stabilizers and lubricants.

Abstract: The process comprises mixing chopped glass fibres with plastics-forming ingredients and moulding or forming the mixture to obtain reinforced plastics articles. The invention lies in the use of chopped glass fibres in filamentary form. Conveniently the glass fibres are first made into a slurry or paste, which forms the aspect of the invention, with a liquid compatible with the plastics-forming ingredients or with all or a part of one or more of the ingredients. The invention includes a novel form of chopped glass fibres formed from glass strand bound with a size containing as the main ingredient one component of a plastics-forming mixture or a derivative thereof. It also includes apparatus for mixing the glass fibre paste or slurry with plastics-forming ingredients by impingement mixing.The invention is of special use for reinforcing with glass fibres plastics articles, especially polyurethane plastics articles, formed by a Reaction Injection Moulding (RIM) process.

Abstract: A mat of randomly disposed multifilament glass strand of indefinite length bonded to each other within a binder consisting essentially of the dried residue of an aqueous dispersion of emulsified polyurethane or epoxy resin having an average particle diameter of at least about 0.6 .mu.m and an amine-functional organosilane, where the individual filaments are sized with a mixture of an amine-functional organosilane and an amide reaction product of a fatty acid with an aliphatic polyamine, the reaction product having residual amine functionality, gives improved impact strength when used to reinforce thermoplastic, and especially polyamide, laminates which are stamped to form shaped articles.

Abstract: A sizing composition and method of preparing sized glass fiber strand is provided to produce sized glass fiber strand that has reduced tackiness. The sizing composition has a low molecular weight liquid polymer selected from the group consisting of styrene-butadiene copolymer, acrylonitrile-butadiene copolymer or hydroxy or carboxy derivatives of said copolymers, epoxy resins, polyester resins, or polyurethane resins that are free radically curable; and a free radical precurser selected from the group consisting of peroxides, hydroperoxides in an amount in the range of about 0.2 to 5 parts per hundred parts of liquid polymer in said sizing composition; or the said liquid polymer that can be treated with radiation to produce an equivalent amount of free radicals.

Abstract: Oil-in-water emulsions of antioxidants having low volatility and good thermal resistance are provided for treating fibrous reinforcements such as glass fibers. The emulsions are comprised of the antioxidant in an amount of about 5 to about 60 weight percent of the emulsion along with an organic solvent that has a boiling point above the temperature of use or of preparation and is compatible with the antioxidant in an amount in a ratio of about 0.5 to about 1.5 with the antioxidant and one or more emulsifiers selected from the group consisting of anionic, and nonionic having a combined HLB (hydrophilic/lipophilic balance) in the range of about 12 to about 27. The emulsion can also contain a resin carrier such as an epoxy resin and/or a stabilizing agent such as polyalkylene polyol.

Abstract: Sizing composition for glass fibers, method of making same, method of making sized glass fibers and sized glass fibers are provided to have improved sized glass fibers for use in thermosetting molding compounds. The improved sized glass fibers are produced with improved processability and have good handling characteristics and give improved properties to thermosetting molding compounds.The sizing composition is an aqueous sizing composition having water soluble or dispersible, liquid epoxy resin, melamine formaldehyde condensate, polyamide resin and thermoplastic plasticizing agent, and one or more silane coupling agents.The method of preparing the sizing composition involves adding the melamine formaldehyde condensate and polyamide resin before the addition of or in the presence of the epoxy resin.The sized glass fibers are in contact with dried residue of the epoxy resin, melamine formaldehyde-polyamide reaction product, thermoplastic plasticizing agent and one or more silane coupling agents.

Abstract: The specification describes radiation cured coatings suitable for coating fiber lightwaveguides. The coatings are relatively low modulus materials that remain rubbery throughout normal environmental temperature ranges. An exemplary coating composition comprises an oligomeric resin, which is a condensation product of a mixture of polypropylene glycols and two units of a O-hydroxy-ethylacrylate N-C aliphatic urethane, mixed with an oligomeric liquid which is a dimethylacrylate of a polyethylene glycol of molecular weight larger than 600, a monomoneric triacrylate, such as trimethylolpropane triacrylate and a photoinitiator. The coatings are free of nomoneric ingredients.

Abstract: A sizing composition and process are provided for producing wound packages and particularly precision wound packages of glass fiber strand and/or roving. The sizing composition has a total solids content in the range of about 9 to about 30 weight percent and comprises a phenolic epoxy resin, the reaction product of a partial ester of a polycarboxylic acid containing one or more unesterified carboxyl groups with a compound containing more than one epoxy group; and organo silane or silanes; a non-ionic surface active agent; a protective colloid; and a cationic lubricant.