Abstract: Physical properties particularly including tensile modulus and heat-distortion temperature of high nitrile copolymer resins are improved by including therein a processing aid, such as tetra chloro phthalic anhydride, and a filler material, such as clay.
Abstract: A heterogeneous catalytic process for dehydrohalogenating allylically halogenated olefinic hydrocarbon polymers to produce conjugated diene unsaturated polymeric products is disclosed comprising employing certain metal containing catalyst compositions, especially activated alumina supported copper containing catalysts. The process is especially suitable for the preparation of conjugated diene butyl elastomers from halogenated butyl rubber and produces products having relatively high reactivity levels in terms of active diene content.
Abstract: Fluorinated phenolic polymer, process for its preparation, and use thereof, particularly in the form of a film as a membrane in an electrolytic cell, said polymer consisting essentially of recurring units of(1) --CF.sub.2 CFX-- wherein X in each of the recurring units is independently selected from F, Cl, R and OR wherein R is perfluoroalkyl of 1 to 4 carbon atoms and ##STR1## wherein Y is Cl, R or OR wherein R is perfluoroalkyl of 1 to 4 carbon atoms; M is H, alkali metal or NR.sub.4 ' wherein R' in each of the recurring units is independently selected from H and alkyl of 1 to 6 carbon atoms; x is an average value within the range about 0.2 to about 1.0; n is 1, 2 or 3; and p is 0 or 1,said polymer having 0 to about 21 units of (1) per unit of (2).
Abstract: Compositions of and methods for the preparation of polyvinylpyridine and iodine (PVP.nI.sub.2) as cathode materials for electrochemical cells.
Abstract: A continuous process for preparing rubber reinforced resins which are copolymers of styrenic compound, acrylonitrile and diolefinic compound.
Abstract: A family of negative resins, capable of undergoing crosslinking under the effect of more or less energetic photons (gamma radiation, X-rays, ultraviolet or visible light), applicable to the protection of objects against atmospheric agents and to the production of masks of the type used in the production of integrated circuits. The typical compound according to the invention contains at least one substance of which the chemical formula comprises a thiirane ring: ##STR1## such as 2,3-epithiopropyl methacrylate copolymerized with a vinyl monomer, such as methyl methacrylate. Crosslinking is facilitated by photoinitiators, such as aryl diazonium and aryl iodonium salts liberating Lewis acids. By selecting the photoinitiator, it is possible to act on the spectral region where irradiation is effective.
Abstract: A weather resistant adhesive composition possessing an excellent balance of properties including good tack and low melt viscosity comprises a selectively hydrogenated monoalkenyl arene/conjugated diene block copolymer component having certain block molecular weights, tackifying resin, and plasticizer.
Abstract: A process for the preparation of ethylene-propylene block copolymers at high catalyst productivity rates resulting in polymer products having improved impact strength-polymerized ethylene content relationship.
Abstract: Ambient temperature curable compositions comprising a hydroxyl containing organic polymer and an aminoorganosilicon acylamino compound, said compositions being useful as protective coating compositions.
Type:
Grant
Filed:
December 29, 1978
Date of Patent:
August 18, 1981
Assignee:
Union Carbide Corporation
Inventors:
Lawrence G. Kaufman, Charles N. Merriam, Enrico J. Pepe
Abstract: Alicyclic organomonolithium compounds having delocalized conjugated unsaturation are effective initiators in the preparation of polymers of conjugated dienes. Polymers of conjugated dienes, prepared with or without the alicyclic organomonolithium compounds, are terminated with alicyclic compounds having conjugated unsaturation. Either or both approaches can be used to provide polymers containing alicyclic conjugated unsaturated functional groups. Alternatively, polymers prepared from the alicyclic organomonolithium compounds can be coupled to produce linear or branched polymers. Polymers prepared from multichelic lithium compounds also can be terminated with alicyclic conjugated unsaturated compounds.
Abstract: This invention relates to a method for the hydrolysis of acrylamide polymers utilizing less than stoichiometric amounts of a hydrolysis agent selected from the group consisting of alkali metal hydroxides and alkali metal sulfites. The process is conducted with a water-in-oil emulsion (latex) of the acrylamide polymer at an elevated temperature and pressure.
Abstract: The viscosity of filled unsaturated polyester resin compositions is reduced by the incorporation in said compositions of an effective amount of a composition comprising a lower alkoxylated alkyl acid phosphate ester.
Abstract: A method is disclosed for preparing graft polymers of alpha-substituted-beta-propiolactones, comprising the step of providing anionic sites in an amorphous base polymer and reacting the anionic compound with an alpha-substituted-beta-propiolactone. Critical concentrations of unsaturation in the base polymer and critical quantities of the beta-propiolactone concerned are indicated.
Abstract: Diallyl Phthalate compounds having a molecular weight of 250 to 20,000 and having at least one silyl group represented by the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each a hydrogen or a monovalent hydrocarbon radicals having 1 to 10 carbon atoms, such as alkyl, aryl or aralkyl radicals; X is a group selected from halogen, alkoxy, acryloxy, aminoxy, phenoxy, thioalkoxy and amino groups, and "a" is an integer 0, 1 or 2, in the molecule; and process for producing same wherein a diallyl phthalate monomer or prepolymer having molecular weight of 20,000 or less is reacted with a hydrosilane compound having the formula: ##STR2## wherein the designations are the same as above, and at a temperature within the range of 50.degree. to 150.degree. C.
Abstract: What is disclosed is a method for making a lubricating oil additive which comprises a first step of graft copolymerizing an alkyl ester of acrylic acid or of methacrylic acid, alone or in combination with styrene, onto a backbone copolymer which is hydrogenated block copolymer of styrene and a conjugated diene having 4 to 6 carbon atoms to form a first graft copolymer, and a second step of graft copolymerizing a polymerizable heterocyclic monomer, alone or in combination with a hydrophobizing vinyl ester, onto said first graft copolymer to form a second graft copolymer, and the lubricating oil additive so made.
Type:
Grant
Filed:
August 6, 1979
Date of Patent:
August 4, 1981
Assignee:
Rohm GmbH
Inventors:
Rainer Benda, Helmuth Knoell, Peter Neudoerfl, Horst Pennewiss
Abstract: Graft-polymers of,.alpha.,.alpha.'-disubstituted .beta.-propiolactones on isobutylene-triene copolymers are prepared by reacting an isobutylene-triene copolymer with maleic anhydride and possibly with other functionalizing agents adapted to introduce acid and ester groups in the copolymer molecule and by neutralizing or hydrolyzing, or both, with a tetraalkylammonium base, said functional groups, said neutralization or hydrolysis, or both, being followed by a grafting reaction with pivalolactone.
Abstract: The invention relates to novel aqueous dye preparations of dyes difficultly soluble in water, to processes for producing these dye preparations, to the use thereof for preparing printing pastes, and to the use of the said dye preparations for printing carrier materials for transfer printing, for printing in particular textile materials, or for dyeing textile materials, and also to the printed carrier materials, and to the material printed by means of these dye preparations in the transfer-printing process, or to the material dyed or printed in the dyeing or printing process. The novel dye preparations contain water, a finely dispersed dye of which the solubility in boiling perchloroethylene is lower than 0.5 g/kg, an anionic and/or nonionic dispersing agent, a resin which has affinity for the dye and which is more soluble than the dye in a solvent having limited miscibility with water, and optionally further additives.
Type:
Grant
Filed:
December 27, 1978
Date of Patent:
August 4, 1981
Assignee:
Ciba-Geigy Corporation
Inventors:
Carl Becker, Georges Mahler, Paul Erzinger
Abstract: Polymer bound multidentate complexes are prepared by reacting pendant benzyl chloride and benzyl iodide groups on a variety of polymer supports, including crosslinked polystyrene, with 3,3'-iminodiproprionitrile and reducing the nitrile groups by treatment with, for example, a boron hydride-tetrahydrofuran complex to form the amine. The amine is a precursor for other ligand systems; for example, the primary amine groups formed condense with an aldehyde or ketone to yield five coordinate Schiff base ligands. The polydentate amine ligand systems are useful for synthesis of chelating agents for sequestering metal ions from solution for purification or concentration purposes. Metal complexes of these ligands with manganese, iron, cobalt, nickel, copper, and zinc can be prepared which are useful as heterogeneous oxidation catalysts.
Abstract: The present invention relates to a process for preparing ABS polyblends having an alkenyl aromaticalkenyl nitrile monomer matrix polymeric phase reinforced with rubber particles grafted with said monomers and having a bimodal rubber particle size distribution, the process comprising: charging continuously a formulation of said monomers having a soluble diene dissolved therein and a first grafted diene rubber particle dispersed therein to a back-mixed reaction zone operating at 50-80% steady state, flow-through, conversion of said monomer formulation, continuously mass polymerizing said charged monomer formulation to 50-80% conversion, forming and dispersing said soluble rubber as second grafted diene particles having a particle size larger than said first grafted rubber particles, continuously withdrawing an effluent from said reaction zone and separating said ABS polyblend from said effluent.