Cellulosic Patents (Class 428/393)
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Patent number: 4289824Abstract: Article of manufacture comprising alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having carboxymethylcellulose uniformly dispersed therein, the latter being the sole additive for increasing the fluid holding capacity of the fibers.Type: GrantFiled: October 5, 1979Date of Patent: September 15, 1981Assignee: Avtex Fibers Inc.Inventor: Frederick R. Smith
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Patent number: 4273118Abstract: Alloy fibers having high fluid-holding capacity, and a method for making the same, the alloy fibers being comprised of a matrix of regenerated cellulose having 5 to 25 weight percent of alkali metal salts of cellulose sulfate being dispersed therein. The sulfate salts may be present in combination with anionic polymer. The high fluid-holding capacity is at least 4.8 ml per grams as measured by the Demand Absorption Test.Type: GrantFiled: June 4, 1979Date of Patent: June 16, 1981Assignee: Avtex Fibers Inc.Inventor: Frederick R. Smith
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Patent number: 4259403Abstract: An acid of the formula A--COOH).sub.x, or an anhydride thereof, wherein x is an integer of 1 or 2, wherein the acid groups are vicinal if x is 2, and A is phenyl, C.sub.2 -C.sub.10 alkylene, C.sub.2 -C.sub.10 alkenylene, C.sub.6 -C.sub.10 bridged or nonbridged cycloalkylene or cylcoalkenylene, with the proviso that A is C.sub.1 -C.sub.6 alkyl if x is 1, renders ethylene-propylene-nonconjugated diene elastomers more adherent to fibers that have been treated with a resorcinol-formaldehyde-latex dip when said elastomers are cured directly onto said fibers.Type: GrantFiled: January 16, 1979Date of Patent: March 31, 1981Assignee: Uniroyal, Inc.Inventor: Richard W. Tomlinson
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Patent number: 4247596Abstract: Electrical conductors for use in microelectronic circuitry are prepared from a flexible, polymeric fiber selected from the group of flexible, polymeric fibers consisting of silk, polyacrylonitrile, regenerated cellulose, polyester, and polyamide. The selected fiber is made conductive by coating by a method wherein the fiber is immersed for a predetermined time period of from about 30 minutes to about 60 minutes in a solution prepared from equal portions of a silver nitrate-aqueous ammonia solution and a silver nitrate-potassium-sodium tartrate solution. These solutions coat the selected polymeric fiber with metallic silver. The excess solution is washed off and the coated fiber is air dried or dried in a low temperature oven at about 50.degree. C. The process is repeated if a heavier coating of silver on the fibers is desired for better conductivity. For use, the metallic silver coated fiber is cut to required length and tested for resistivity which should be near one ohm.Type: GrantFiled: May 10, 1979Date of Patent: January 27, 1981Inventor: Tin B. Yee
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Patent number: 4246314Abstract: Glass fibers, either in the form of individual filaments or bundles of glass fibers, which have been coated with a chemically-modified asphalt prepared by reacting a bituminous material with an organo metallic compound in the form of an orthoester or an organo metallic boron compound. The coated fibers can be used as reinforcement for bitumen or bitumen plus aggregate to securely tie the glass fiber surfaces to the bitumen.Type: GrantFiled: June 13, 1979Date of Patent: January 20, 1981Assignee: Owens-Corning Fiberglas CorporationInventors: Alfred Marzocchi, Michael G. Roberts, Charles E. Bolen
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Patent number: 4242405Abstract: High wet modulus viscose rayon fiber having a skin core structure and having a multi-lobular cross-section that imparts to fabrics an improved cover and hand properties similar to those of cotton. The fibers are formed from a modifier-free viscose. The elimination of the modifier reduces manufacturing costs and eliminates an environmental pollution problem created in the discharge of spinning baths containing modifiers.Type: GrantFiled: January 15, 1979Date of Patent: December 30, 1980Assignee: Avtex Fibers Inc.Inventor: Gregory C. Bockno
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Patent number: 4215175Abstract: Ethylenically unsaturated blocked aromatic diisocyanates are prepared which readily polymerize to form homopolymers and interpolymers with copolymerizable vinylidene monomers. Polymers can be prepared via emulsion polymerization, and exhibit excellent stability to hydrolysis when stored in latex form. The polymers cure at temperatures as low as 80.degree. C., and under acidic, neutral, or basic pH conditions. Homopolymers and interpolymers of the defined diisocyanates are useful as adhesives, and interpolymers of the ethylenically unsaturated blocked aromatic diisocyanates with acrylate monomers are particularly useful as binders for nonwoven fibers.Type: GrantFiled: March 30, 1979Date of Patent: July 29, 1980Assignee: The B. F. Goodrich CompanyInventor: Harold A Tucker
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Patent number: 4210692Abstract: The present invention relates to a novel sheet adapted to be adhered to and form the outer layer of a wood article, said sheet being made from a furnish comprising, for each 100 parts by weight, from about 10 to 25 parts synthetic pulp, 10 to 25 parts by weight mineral fiber, 0.1 to 2 parts size, 0.1 to 2 parts wet strength agent, and 79.8 to 46 parts wood fiber and to laminates comprising a wood core and said sheet adhered to at least one surface of said core.Type: GrantFiled: November 17, 1978Date of Patent: July 1, 1980Assignee: Champion International CorporationInventors: Reinhard D. Bohme, Robert O. Ragan
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Patent number: 4204984Abstract: Rubber compounds are readily bonded to tire cords using a dip process in which the dip contains an alkaline aqueous dispersion of a mixture of a major amount by weight of a rubbery carboxylated conjugated diene copolymer and a minor amount of a lignin amine formaldehyde reaction product.Type: GrantFiled: October 17, 1977Date of Patent: May 27, 1980Assignee: The General Tire & Rubber CompanyInventor: Terry C. Neubert
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Patent number: 4204982Abstract: Rubber compounds are readily bonded to tire cords using a dip process in which the dip contains an alkaline aqueous dispersion of a mixture of a major amount by weight of a rubbery carboxylated conjugated diene copolymer and a minor amount of a lignin amine formaldehyde reaction product.Type: GrantFiled: November 13, 1978Date of Patent: May 27, 1980Assignee: The General Tire & Rubber CompanyInventor: Terry C. Neubert
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Patent number: 4197350Abstract: Quaternized amine-amide condensation products which are obtained by condensation of an amine of the formulaR.sub.1 R.sub.2 N--(CH.sub.2).sub.n --NH.sub.2with a lower alkanecarboxylic acid, and subsequent quaternization with a trialkyl phosphate. These products are suitable as fiber preparation agents.Type: GrantFiled: October 19, 1978Date of Patent: April 8, 1980Assignee: Hoechst AktiengesellschaftInventors: Rolf Kleber, Wolfgang Wagemann
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Patent number: 4194940Abstract: Thermoplastic elastomeric materials are bonded to a variety of substrates over a broad range of temperatures and pressure by employing an adhesive system comprising thermoplastic polyether urethane.Type: GrantFiled: August 4, 1978Date of Patent: March 25, 1980Assignee: Lord CorporationInventors: Dennis J. Damico, Brian Martin
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Patent number: 4186238Abstract: This invention relates to a hydrophilic shaped article of a water-insoluble polymer selected from the group consisting of regenerated cellulose, cellulose ether, cellulose ester and polyalkylene, and capable of forming fibers and films, said article containing amorphous particles of an originally water-soluble cellulose ether prepared from natural cellulose and rendered by chemical modification at least partly water-insoluble while remaining water-absorbent.Type: GrantFiled: September 30, 1977Date of Patent: January 29, 1980Assignee: Hoechst AktiengesellschaftInventors: Arno Holst, Michael Kostrzewa, Helmut Lask
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Patent number: 4174418Abstract: Bacteriostatic, water-insoluble complexes of zirconyl acetate with inorganic peroxides are disclosed. Peroxides operative in forming these complexes are hydrogen peroxide, alkali metal perborates and alkali metal peroxydiphosphates. Processes for in situ formation and deposition of the insoluble complexes on the surfaces of cellulosic textiles are described. The textile finishes so produced inhibit the growth and spreading of odor- and infection-producing gram-negative and gram-positive bacteria on the treated textiles. The antibacterial activity imparted to the textiles is durable to repeated laundering.Type: GrantFiled: May 31, 1978Date of Patent: November 13, 1979Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Clark M. Welch, Gary F. Danna, Tyrone L. Vigo
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Patent number: 4148963Abstract: The present invention relates to an adhesive-coating composition for increasing the adhesion of heat-stable, high-modulus, modal, polyester-based yarns and glass fibres towards compounded rubbers based on natural rubber and on synthetic rubber, said composition comprising a solution of a precondensed resorcinol/formaldehyde resin, a latex based on vinylpyridine and polychloroprene latex, 28% strength ammonium hydroxide and a dicarboxylated butadiene/styrene resin. Yarns and fibres coated with the adhesive-coating composition of the invention are useful in the manufacture of tires, conveyors, conveyor belts, hoses and the like.Type: GrantFiled: August 2, 1977Date of Patent: April 10, 1979Assignee: Rhone-Poulenc-TextileInventors: Paul Bourrain, Pierre Giroud
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Patent number: 4137358Abstract: Adhesive-coated tire cord fabric and similar fabric and single end cords for other end uses can be protected from the adverse effects of exposure to the products of combustion present in fuel oil- or kerosene-fired dryers and curing ovens as well as to atmospheric oxidation, prior to the adhesion of such fabrics to rubber, by incorporating a hydrocarbon wax which is a microcrystalline wax or a Fischer-Tropsch wax in the adhesive formulation.Type: GrantFiled: June 10, 1976Date of Patent: January 30, 1979Assignee: Uniroyal, Inc.Inventor: Roy E. Hartz
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Patent number: 4135034Abstract: A flame-retardant yarn or thread containing a flame-retardant lubricant which consists of one or more mono- or di-chloro alkanes or one or more mono- or di-bromo alkanes, wherein the alkanes have ten to thirty carbon atoms.Type: GrantFiled: June 1, 1977Date of Patent: January 16, 1979Assignee: Dixie Yarns, Inc.Inventor: Jefferson L. Claiborne
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Patent number: 4133937Abstract: Soluble, curable triazine polymers are prepared by first polymerizing an aliphatic nitrile at a temperature of about 80 to about 450.degree. C in the presence of a catalyst such as a metal chloride to form a B-stage polymer, treating the B-stage polymer with a solvent such as diethyl ether to remove unreacted nitrile and finally extracting the soluble, curable triazine polymer from the thus-treated B-stage material with an alcohol, such as methanol. On heating, the soluble triazine polymers can be cured to form thermally-stable, insoluble, infusible polymeric materials.Type: GrantFiled: September 7, 1977Date of Patent: January 9, 1979Assignee: Texaco Inc.Inventor: Gordon H. Miller
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Patent number: 4122235Abstract: The invention relates to a resin binder composition comprising, in combination, a resole resin and a metal salt curing accelerator providing a binder composition that has an improved cure rate in electrical grade laminates without adversely affecting electrical properties. The binder composition provides low viscosity for impregnation and accelerated curing rates for advancing the impregnated substrate prior to laminating and final curing.Type: GrantFiled: February 25, 1977Date of Patent: October 24, 1978Assignee: Monsanto CompanyInventor: Ronald H. Dahms
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Patent number: 4107373Abstract: Cellulosic materials such as paper, wood, cotton, rayon and the like are rendered flame retardant by the intimate association therewith of an effective flame retardant amount of a reaction product of aqueous solution of sulfamic acid and an alkylene oxide e.g., ethylene oxide. Amounts of said reaction product of at least, and preferably in excess of, 0.5 percent by weight are generally effective to render the cellulosic material flame retardant. Preferably the reaction product is rendered neutral before or after application to the cellulosic material in order that the material be rendered noncorrosive and nonirritating in nature.Type: GrantFiled: December 30, 1975Date of Patent: August 15, 1978Assignee: Hooker Chemicals & Plastics CorporationInventor: George T. Miller
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Patent number: 4096312Abstract: Process for the transformation of comminuted cellulose ether, which has been rendered at least largely water-insoluble by modification but is still highly swellable with water, into an easily workable material, comprising wetting a hydrophilic support web, applying the comminuted modified cellulose ether to the wetted web, and drying. This invention also relates to an apparatus for performing the process.Type: GrantFiled: July 28, 1976Date of Patent: June 20, 1978Assignee: Hoechst AktiengesellschaftInventors: Arno Holst, Helmut Lask
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Patent number: 4074724Abstract: Tobacco smoke filter rods made with fibers selected from cellulose acetate, poly(ethylene terephthalate) and poly(hexamethylene adipamide) bonded with water and glycol bonding dispersions comprising water, high boiling glycols selected from 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, 1,2-butanediol and 1,3-butanediol; and water and glycol dispersible polyester polymers. The polymer is present in the amount of about 5 to 40% by weight of the dispersion and preferably about 15 to 35% by weight, and is selected from polyesters of combinations of isophthalic acid and the sodium, potassium, or lithium salt of sulfoisophthalic acid reacted with diethylene glycol or triethylene glycol; and from terephthalic acid and the sodium, potassium or lithium salt of sulfoisophthalic acid reacted with diethylene glycol or triethylene glycol. The water and selected glycol(s) serve as a carrier or dispersion medium for the selected water and glycol dispersible polymer. The dispersions contain from about 0.Type: GrantFiled: November 5, 1976Date of Patent: February 21, 1978Assignee: Eastman Kodak CompanyInventors: Gerald P. Morie, Cephas H. Sloan
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Patent number: 4063558Abstract: Method for making alloy fibers having high fluid-holding capacity, the alloy fibers being comprised of a matrix of regenerated cellulose having alkali metal salts of alginic acid uniformly dispersed therein.Type: GrantFiled: November 12, 1976Date of Patent: December 20, 1977Assignee: Avtex Fibers Inc.Inventor: Frederick R. Smith
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Patent number: 4054715Abstract: A flame-retardant yarn or thread containing a flame-retardant lubricant which consists of one or more mono- or di-chloro alkanes or one or more mono- or di-bromo alkanes, wherein the alkanes have ten to 30 carbon atoms.Type: GrantFiled: February 11, 1976Date of Patent: October 18, 1977Assignee: Dixie Yarns, Inc.Inventor: Jefferson Lyle Claiborne
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Patent number: 4048371Abstract: Fasces fibers consisting of fascicles of filaments bonded together at joints are disclosed. The joints may be focal or may be dispersed through the fiber fascicles in a statistical or predetermined pattern. The fascicles may be composed of the same type of fiber or from a mixture of different fibers. In one embodiment the fiber fascicle may contain coarser high tensile strength fiber(s), termed leader fiber(s), which is (are) accompanied and bonded to a group of slender fibers termed the satellite fibers. The latter fibers may provide properties that may be lacking in the mechanically strong leader fiber. These properties for example may include those of texture, softness, resiliency, bulk, insulation, moisture absorption, color and luster, antistatic properties and flame retardancy. The division of variables of fiber characteristics is a valuable feature of the present invention. Another feature of this invention is the ability to control the virtual volume which the composite faces fiber commands.Type: GrantFiled: October 17, 1974Date of Patent: September 13, 1977Assignee: Ingrip Fasteners, Inc.Inventor: George Brumlik
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Patent number: 4031288Abstract: The bonding of tire cord to rubber is improved by first treating the surface of the tire cord with a solvent solution of a polyisocyanate in essentially small amounts and then treating the cord with an adhesive comprising a phenol/aldehyde resin, a phenol aldehyde resin blocked polyisocyanate and a rubber latex.Type: GrantFiled: June 18, 1975Date of Patent: June 21, 1977Assignee: The Goodyear Tire & Rubber CompanyInventors: Roop S. Bhakuni, Grover W. Rye
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Patent number: 4007305Abstract: Textile materials are treated with an alkaline aqueous medium having a pH value of 7.5-11 and containing 0.25-4% by weight of a dissolved water soluble hydrophilic soil release polymer having carboxylic acid groups and 0.05-1% by weight of a dispersed hydrophobic soil repellent fluorochemical. The soil release polymer and the soil repellent fluorochemical are deposited on the surfaces of the textile fibers and the resulting textile material is dried to impart the desired nondurable soil release and soil repellency properties. The aqueous medium also may contain polyvinylpyrrolidone to further improve the finish. In a preferred variant, the textile material is first contacted with an alkaline aqueous solution of the soil release polymer, and thereafter with an alkaline aqueous medium containing the dispersed soil repellent fluorochemical to reduce the tendency of the deposited soil release polymer to cover the deposited soil repellent fluorochemical molecules.Type: GrantFiled: December 23, 1974Date of Patent: February 8, 1977Assignee: BASF Wyandotte CorporationInventors: Sarwan K. Kakar, Frank R. Kappler, Gilbert S. Gomes, John J. Cramer
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Patent number: 3997647Abstract: Chemically modified cellulose fibers such as those which have been subjected to phosphorylation or carboxymethylation or to polymer grafting-hydrolysis are refined in the presence of water, centrifuged to remove unbound water and extruded into filaments. The individual fibers are identifiable within the filaments and are generally aligned parallel to the filament axis. Certain embodiments of the filaments are highly absorbent, have fast wicking rates, and may be self-bonded to form integral nonwoven webs for use in disposable diapers, sanitary products, wipes and the like.Type: GrantFiled: February 24, 1975Date of Patent: December 14, 1976Assignee: Kimberly-Clark CorporationInventor: Frederick O. Lassen
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Patent number: 3993830Abstract: A composition for applying a non-permanent soil-release finish to fabrics from dilute solution comprising a polycarboxylate polymer having an acid equivalent weight of from about 110 to 175, and a water-soluble salt of a polyvalent metal. A preferred polymer is derived from an ethylenically unsaturated monocarboxylic acid and an alkyl acrylate. The composition is particularly useful for applying a soil-release finish in the rinse cycle of a home laundry process.Type: GrantFiled: October 23, 1973Date of Patent: November 23, 1976Assignee: Colgate-Palmolive CompanyInventors: Robert E. Dickson, Stanley M. Barkin
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Patent number: 3984594Abstract: A sized cellulosic fiber-containing yarn having an excellent weaving property and processing property is provided by sizing, in a non-aqueous medium, with a copolymer prepared by copolymerizing 20 to 80% by weight of at least one monomer selected from the group consisting of methyl methacrylate, styrene and acrylonitrile and 80 to 20% by weight of at least one monomer selected from the group consisting of acrylic esters of aliphatic alcohols having 1 to 8 carbon atoms and methacrylic esters of aliphatic alcohols having 4 to 8 carbon atoms, and removing the non-aqueous medium from the yarn, the copolymer having a glass transition temperature of 40.degree. to 80.degree.C and a Young's modulus of 1 .times. 10.sup.3 to 1 .times. 10.sup.4 kg/cm.sup.2.Type: GrantFiled: August 23, 1974Date of Patent: October 5, 1976Assignee: Kanebo, Ltd.Inventors: Junzi Sano, Kiyoshi Aoki, Syoso Makino
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Patent number: 3983288Abstract: Quaternary salts having a pyrido-[1,2-a]-indole nucleus are useful optical brightening agents for synthetic and natural fibers and fabrics. The quaternary salts are especially useful optical brighteners for paper and acrylic fibers.Type: GrantFiled: November 4, 1974Date of Patent: September 28, 1976Assignee: Eastman Kodak CompanyInventor: Derek D. Chapman
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Patent number: 3979544Abstract: Flock of synthetic fibers, especially of polyamide fibers, suitable for electrostatic flocking, and containing a certain amount of mineral tanning agents.Type: GrantFiled: June 9, 1975Date of Patent: September 7, 1976Assignee: Bayer AktiengesellschaftInventors: Joachim Kolbe, Otto Schneider, Ernst Gutschik, Dieter Brokmeier
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Patent number: 3979545Abstract: The flame resistance of synthetic fibers and solid polymers are improved by treatment with a halogen containing amide having the formula ##EQU1## wherein R is lower alkoxy; lower alkoxy carbonyl; ##EQU2## X is chlorine or bromine; m is 0 or 1; n is 1-6; and y is 1-13.Type: GrantFiled: September 12, 1974Date of Patent: September 7, 1976Assignee: National Distillers and Chemical CorporationInventors: Harry Braus, Jay R. Woltermann
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Patent number: 3959556Abstract: Antimicrobial properties are imparted to naturally occurring fibers, such as cotton fibers and fabrics, by intimately admixing the naturally occurring fibers with synthetic fibers prepared by extruding a spinnable solution of a synthetic thermoplastic resin and at least 0.1% by weight of an antimicrobial agent into a strand having a denier of 1.5-60 dpf. The synthetic fibers are characterized by the antimicrobial agent therein migrating to the fiber surface to form a coating thereon and then transferring to the naturally occurring fibers by physical contact as the amount of antimicrobial agent on the surface of the naturally occurring fibers diminishes. Additional antimicrobial agent then migrates to the surface of the synthetic fiber until equilibrium is re-established.Type: GrantFiled: July 2, 1974Date of Patent: May 25, 1976Inventor: Willard L. Morrison
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Patent number: 3955028Abstract: Compounds of the formula:[(BrCH.sub.2).sub.3 CCH.sub.2 O].sub.2 P(O)Rwherein R is a functional group selected from the group consisting of --CH=CH.sub.2, --CH.sub.2 X, --OR'OC(O)CH=CH.sub.2, --OR'OC(O)C(CH.sub.3)=CH.sub.2, --O(R'O).sub.n H, --OH, --Cl, and NR"R'", wherein R' is a C.sub.1 -C.sub.4 alkylene group, wherein R" and R'" are the same or different and are selected from the group consisting of hydrogen, lower alkyl, e.g. C.sub.1 -C.sub.8, preferably C.sub.1 -C.sub.4, phenyl, hydroxyalkyl, e.g., hydroxy C.sub.1 -C.sub.8, or, preferably hydroxy C.sub.1 -C.sub.4, and allyl groups, wherein X is selected from the group consisting of chlorine and bromine and wherein n is an integer between 1 and 20 are disclosed. These compounds have flame retardancy characteristics and are useful either as flame retardant additives or as reactive flame retardants which can react to confer durable flame retardancy on textiles or other polymer products.Type: GrantFiled: July 18, 1974Date of Patent: May 4, 1976Assignee: Stauffer Chemical CompanyInventor: Edward D. Weil
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Patent number: 3941856Abstract: Compositions for surface treatments to give lower release values comprising 100 parts by weight of a hydroxy-containing diorganopolysiloxane, 1 to 20 parts by weight of an organohydrogenpolysiloxane, 0.05 to less than 20 parts by weight of an aminoalkoxy silicon compound, 1 to 20 parts by weight of an organotin compound and, if desired, up to 10 parts by weight of a non-amino-containing alkoxy silicon compound.Type: GrantFiled: January 29, 1974Date of Patent: March 2, 1976Assignee: Imperial Chemical Industries LimitedInventors: Norman Geoffrey Creasey, Leslie Clark Pike