Frederick E. Bailey - Charleston WV Michael W. Jorgenson - Cross Lanes WV Robert D. Whitman - Charleston WV
Assignee:
Union Carbide Corporation - Danbury CT
International Classification:
C08G 1814
US Classification:
521103
Abstract:
This invention relates to a process for producing water-blown, flexible polyurethane foams for improved foam stability and molded water-blown, flexible polyurethane foams that are rapidly demoldable with improved green strength. The process involves the use of certain compounds ("foam modifiers") as hereinafter more specifically defined. The foam modifiers consist of an alkali metal or alkaline earth metal ion and an anion of a Bronsted acid having a pKa of greater than 1 (other than: (a) an inorganic alkaline earth metal salt that has a water solubility of less than one gram of salt per 100 milliliters of water at 25. degree. C. , (b) alkali metal dihydrogen phosphate and (c) alkali metal sulphate).
Reduced Reactivity Polyols As Foam Controllers In Producing Polyurethanes Foams
Frederick E. Bailey - Charleston WV Benny J. Argento - South Charleston WV
Assignee:
Union Carbide Corporation - Danbury CT
International Classification:
C08L 7500 C08L 7102 C08L 6300 C08L 506
US Classification:
521137
Abstract:
Reduced reactivity polyols are provided as foam controllers in the production of polyurethane foams. When the foam controllers are incorporated into polyurethane foam formulations, foam rise time is increased without adverse effects on foam characteristics, such as load bearing capability, resiliency and porosity. The foam controllers are acid grafted polyethers, such as acrylic acid grafted poly(alkylene oxides), and can be employed in surprisingly low concentrations to control reactivity.
Water-blown, polyurethane foams modified by incorporation of specific zeolites at levels of from about 0. 5 to ten parts per hundred parts polyol exhibit superior combustibility with no halogen or phosphorus flame retardant additive in the foam. Conventional halogen/phosphorus flame retardants, while providing a level of combustion resistance, generally lead to increased smoke containing noxious, and potentially toxic, combustion products.
Polymer/Polyols Of Substituted Styrenes And Polyurethanes Made Therefrom
Stable dispersions of poly(para-methylstyrene), poly(vinyltoluene) and other substituted styrenes can be made in polyether polyols and thereafter formed into polyurethanes. The polymer/polyols made from substituted styrenes have low viscosity and good particle size and distribution.
Crystalline Co-And Terpolymers Of Ethylene And Acenaphthylene
Frederick Eugene Bailey - Charleston WV Werner Claus VON Dohlen - Charleston WV
Assignee:
Union Carbide Corporation - New York NY
International Classification:
C08L 2308
US Classification:
260897A
Abstract:
A highly crystalline non-uniform copolymer comprised of ethylene and acenaphthylene, which lacks the independent beta thermomechanical transition in the torsion pendulum loss-modulus curve possessed by known copolymers of ethylene. The non-uniform copolymer being photodegradable. A compatible blend of the polymeric material and high density polyethylene or the polymeric material and low density polyethylene has a higher use temperature than the particular polyethylene by itself. A though semi-crystalline, high-modulus, semi-elastic, non-uniform terpolymer comprised of ethylene, acenaphthylene and a different alpha-olefin, such non-uniform terpolymer being more elastic than polyethylene.
Frederick Eugene Bailey - Charleston WV Joseph Victor Koleske - Charleston WV
Assignee:
Union Carbide Corporation - New York NY
International Classification:
C08L 2512 C08L 2706 C08L 2514 C08L 3506
US Classification:
260 296RB
Abstract:
A poly(vinyl chloride) resin composition comprised of an admixture of poly(vinyl chloride) resin and a clear or translucent polymeric material comprised of a non-uniform copolymer comprised of acrylonitrile, styrene and acrylate ester. The clear polymeric ASA material is a good impact modifier for PVC. The admixture contains from 3 to 15 percent by weight, based on the admixture, of the clear polymeric material. The clear polymeric material has a weight ratio of acrylonitrile and styrene acrylonitrile, styrene and acrylate ester which is between about 40 to 60 and about 60 to 40. The PVC resin combination, in dry form, can be conventionally hot processed or fabricated. The non-uniform polymer is prepared by the process which comprises introducing at least one primary polymerizable feed composition, selected from the group of monomers consisting of styrene, acrylonitrile, acrylate ester, and a mixture of two or more of such monomers, from at least one primary feed source to a polymerization zone, the primary polymerizable feed composition continually varying in compositional content of the polymerizable reactants therein during the continuous introduction; simultaneously adding to the primary feed source at least one different secondary polymerizable feed composition, selected from the group of monomers consisting of styrene, acrylonitrile, acrylate ester and a mixture of two or more of such monomers, from at least one secondary feed source so as to continually change the compositional content of the polymerizable reactants of the primary polymerizable feed composition in the primary feed source; and continuously polymerizing the primary polymerization feed composition introduced to the polymerization zone until the desired polymerizable has been achieved, the primary polymerizable feed composition being different from the secondary polymerizable feed composition.
Gradient Polymers Of Two Or More Alpha Mono-Olefinic Monomers Capable Of Polymerizing With Themselves And Each Other
Frederick Eugene Bailey - Charleston WV Werner Claus VON Dohlen - Charleston WV Markus Matzner - Edison NJ Robert Hayward Young - Somerville NJ Lloyd Mahlon Robeson - Whitehouse Station NJ
Assignee:
Union Carbide Corporation - New York NY
International Classification:
C08F 1000 C08F29708
US Classification:
260878B
Abstract:
Polymers of at least two different alpha monoolefinic monomers capable of polymerizing with themselves and each other. The polymers comprise a plurality of polymer chains along which the proportion of mer units provided by a first such monomer for a given first chain length gradually increases as the proportion of mer units provided by a second such monomer along the first chain length gradually decreases to a second chain length along which the proportion of mer units provided by the first and second monomers, respectively, remain substantially constant throughout said second chain length. Also, included are polymers of this type wherein the polymer chains comprise a third chain length along which the proportion of mer units provided by the first monomer is greater than the minimum proportion of the same type of mer units in the given first chain length and remains substantially constant throughout the third chain length. In this case the third chain length is connected to one end of a fourth chain length which is connected at its other end to the given first chain length and the proportion of mer units provided by the first monomer gradually diminishes along the fourth chain length as the proportion of mer units provided by the second monomer gradually increases along the fourth chain length to the respective proportions of mer units provided by the first and second monomers at the beginning of the given first chain length at the point of attachment of the fourth chain length to the given first chain length.
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Frederick D. Bailey President, Treasurer, Director, Secretary