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| Patent # | Description |
|---|---|
| US-4,419,520 |
Hydroxyalkyl- and alkoxyalkyl-triazolidine-3,5-dione compounds and their
processes for their preparation An hydroxyalkyl- and alkoxyalkyl-triazolidine-3,5-dione is disclosed of the formula ##STR1## wherein R.sup.1 represents an unsubstituted or substituted... |
| US-4,419,519 |
Continuous preparation of phthalimide A process for the continuous preparation of phthalimide by reacting phthalic anhydride with ammonia in about the stoichiometric ratio, in a mixing apparatus and... |
| US-4,419,518 |
1,4-Dihydropyridine derivatives New 1,4-dihydropyridine derivatives of the formula [I] are provided: ##STR1## wherein R.sup.1 represents a C.sub.1-4 alkyl group or a C.sub.3-6 alkoxyalkyl... |
| US-4,419,517 |
4a-Aryl-trans-decahydroisoquinolines Certain 4a-aryl-trans-decahydroisoquinolines are useful as analgesics. Exemplary is N-cyclopropylmethyl-4a-m-hydroxyphenyl-trans-decahydroisoquinoline. |
| US-4,419,516 |
Antiviral imidazo- and triazolo-pyridines Thioacetonitrile of imidazo- and triazolo pyridines and their use as antiviral agents are disclosed. |
| US-4,419,515 |
Two stage process for preparing 2,6-pyridinedicarboxylic acid This invention relates to a two stage process for preparing 2,6-pyridinedicarboxylic acid or dipicolinic acid from 2,6-dimethyl-pyridine through oxidation of the... |
| US-4,419,514 |
Method for converting carboxylic acid groups to trichloromethyl groups Method for converting carboxylic acid groups to trichloromethyl groups which comprises contacting a compound containing a carboxylic acid group with a... |
| US-4,419,513 |
Isocyanato-isocyanurates, and process for the production thereof The present invention relates to a process for the preparation of novel isocyanato-isocyanurates by the catalytic and ... |
| US-4,419,512 |
N-Substituted polyalkylpiperidine-4-spirooxazolones Compounds of the formulae Ia and Ib ##STR1## wherein n is 1 or 2, R.sup.1 is an aliphatic or aromatic acyl radical, carbamoyl radical or --CH.sub.2 CN, and... |
| US-4,419,511 |
Process for the preparation of trimethine dyestuffs To prepare trimethine dyestuffs of the general formula ##STR1## wherein R represents a C.sub.1 - to C.sub.4 -alkyl radical, R.sup.1 represents hydrogen, C.sub.1... |
| US-4,419,510 |
Method for controlling cellulose etherification reaction This invention provides a method for controlling the reaction between cellulose and an etherifying agent which comprises the steps of (a) combining cellulose... |
| US-4,419,509 |
Process for de-cyanoethylating blocked nucleotides A .beta.-cyanoethyl blocking group is selectively removed from the phosphate moiety of a nucleotide or polynucleotide by treatment with a primary amine having... |
| US-4,419,508 |
20-Dihydro-20-deoxy-23-demycinosyltylosin and process for its production 20-Dihydro-20-deoxy-23-demycinosyltylosin (DH-DO-DMT), 20-dihydro-20-deoxy-5-O-mycaminosyltylonolide (DH-DO-OMT), specified acyl ester derivatives, and their... |
| US-4,419,507 |
Copolyester adhesives Disclosed are linear, crystalline or partially crystalline copolyesters derived from 100 mole % of a dibasic acid component comprising at least 40 mole %... |
| US-4,419,506 |
Radiation sensitive polymer materials A radiation sensitive polymer material having (a) one or more repeating units of the formula: ##STR1## wherein R is an alkyl group, a halogen atom, a... |
| US-4,419,505 |
Contact lens composition, article and method of manufacture A copolymer composition, specially adapted for use in fabricating a contact lens comprises a copolymer of comonomers which include about 1-95 parts by weight of... |
| US-4,419,504 |
Method of accelerating cure rates for acetylene-terminated resins and
curable compositions employed therein Accelerated curing rates of certain acetylene-terminated aromatic sulfones and polyimide oligomers are obtained by thermally curing the resins with an effective... |
| US-4,419,503 |
Catalytic process for the production of petroleum resins In a process in which a C.sub.5 -C.sub.12 feedstock has been distilled from a cracked petroleum fraction and polymerized with the help of a Friedel-Crafts... |
| US-4,419,502 |
Polymerization process for carboxyl containing polymers A method for polymerizing olefinically unsaturated carboxylic acids containing at least one activated carbon-to-carbon olefinic double bond and at least one... |
| US-4,419,501 |
Olefin polymerization catalyst components and polymerization process A process for the preparation of an olefin polymerization catalyst component which comprises contacting a solid composition obtained by combining a magnesium... |
| US-4,419,500 |
Process for producing quaternary ammonium polyamino ureylene containing
halohydrin functionality Described is a novel process for producing quaternary ammonium compounds containing halohydrin functionality from tertiary amines without the use of... |
| US-4,419,499 |
Compositions of urethane rubber and nylon Compositions are described comprising blends of cured millable urethane rubber and nylon. |
| US-4,419,498 |
Process for producing quaternary ammonium amino polyamide containing
halohydrin functionality Described is a novel process for producing quaternary ammonium compounds containing halohydrin functionality from tertiary amines without the use of... |
| US-4,419,497 |
Process for producing novel hydrogenated resin from five-member cyclic
compounds having a conjugated double... According to the present invention, there is disclosed a process for producing a novel resin which comprises the step of copolymerizing a five-member cyclic... |
| US-4,419,496 |
Particle agglomeration in rubber latices Particle size distribution in elastomeric latex preparations is advantageously controlled and improved by treatment of the prepared latex with an agglomerating... |
| US-4,419,495 |
Epoxy resin powder coatings having low gloss The gloss of epoxy resin powder coatings is reduced by employing as the curing agent therefor or as a portion of the curing agent therefor, a polymer of two or... |
| US-4,419,494 |
Heat resistant hot melt adhesives Conventional hot melt adhesive formulations based on A-B-A type block copolymers are improved with respect to their heat and plasticizer resistance by addition... |
| US-4,419,493 |
Sulfur-vulcanizable blends of ethylene-vinyl acetate copolymer
elastomers and polyacrylate elastomers Polyacrylate-containing elastomers, having improved tensile strength and hardness upon vulcanization, comprise blends containing about 35 to 65 percent, by... |
| US-4,419,492 |
Process for preparing ABS polymeric polyblends The invention relates to a process for preparing ABS polyblends having small and large grafted rubber particles dispersed therein providing polyblends having... |
| US-4,419,491 |
Thermoplastic resin composition excellent in color development A thermoplastic resin composition with excellent color development which comprises (A) a graft polymer comprising an ethylene-propylene elastomeric polymer and... |
| US-4,419,490 |
Polymeric hydrogenation catalysts, the production thereof and their use
to promote hydrogenation The invention relates to polymeric soluble hydrogenation catalysts in which a metal of the eighth subgroup of the periodic system is bound by covalent and/or... |
| US-4,419,489 |
Easily emulsifiable acrylamide and rubber modified asphalts Chemically modified asphalts having utility for road construction, repair and maintenance as well as coating for various substrates, including cementitious... |
| US-4,419,488 |
Process for continuous production of high impact polystyrene High impact polystyrene having excellent properties is produced by a continuous process comprising feeding rubber and styrene continuously to a multistage... |
| US-4,419,487 |
Toughened polyester resins Unsaturated polyester resins are rendered less brittle without significantly deteriorating other physical properties by reacting therewith 0.1 to 25 parts of a... |
| US-4,419,486 |
Sulphonated polyaryletherketones A polyaryletherketone polymer which is a hydrophilic sulphonated polymer derived by controllably sulphonating a copolymer having the repeat unit of formula ... |
| US-4,419,485 |
Shaped articles and process for the production thereof Shaped articles comprising a branched, high molecular weight poly(alkylene terephthalate) polyester resin and obtained by providing a molten, self-supporting... |
| US-4,419,484 |
Organopolysiloxane molding compositions The present invention relates organopolysiloxane molding compositions which are capable of storage in the absence of moisture and which crosslink to give... |
| US-4,419,483 |
Process for preparing water-in-oil emulsions Cationic water-in-oil emulsions of water-soluble polymers and copolymers of at least one ethylenically unsaturated monomer are prepared by including in the... |
| US-4,419,482 |
Products containing polymer chains, the preparation and use thereof The invention relates to a process for preparing products containing polymer chains in which a linear prepolymer or polymer contains at least one free acid group... |
| US-4,419,481 |
Small particle size latex useful as a pressure sensitive adhesive A pressure-sensitive adhesive is prepared by blending (1) a small particle size latex having a hard monomer (such as styrene), a soft monomer (such as butadiene)... |
| US-4,419,480 |
Soft, fatigue resistant elastomer articles A soft, fatigue resistant vulcanizate adapted for transmitting load between moving mechanical parts comprising (a) 100 parts by weight of crosslinked elastomer,... |
| US-4,419,479 |
Reinforced carboxy nitrile polymer compositions containing particulate
nickel Reinforced polymer compositions comprising a minor effective amount of a particulate metal reinforcing agent are provided. A preferred particulate metal... |
| US-4,419,478 |
Thermoplastic molding materials Thermoplastic molding materials based on impact resistant styrene polymers and polyphenylene ethers, containing an ester of an aliphatic monocarboxylic acid... |
| US-4,419,477 |
Powder phenolic resin composition for dry process resin-bonded felt This invention relates to a powdered phenolic resin composition suitable for the production of dry processed resinbonded felt. The phenolic resin composition... |
| US-4,419,476 |
Ternary adhesive systems Disclosed are adhesive systems and adhesives formed from (A) hydroxyl-terminated, preferably branched, polyols, (B) isocyanate-capped, polyol-based urethanes and... |
| US-4,419,475 |
Heat resistant ethylene-propylene rubber with improved tensile
properties and insulated conductor product thereof A cross-link curable ethylene-propylene rubber composition with improved tensile and related properties and resistance to heat, the cured rubber composition and... |
| US-4,419,474 |
Flame-repellent polysiloxane molding compositions In a polysiloxane molding composition which can be cured to give flame-repellent products, comprising (a) a diorganopolysiloxane of the formula ##EQU1## in... |
| US-4,419,473 |
Polyolefin plastic compositions having improved transparency A polyolefin plastic composition is provided having improved transparency, which comprises: (a) a major portion of a linear, low density polyethylene polymer; (b) a... |
| US-4,419,472 |
Piperidine compositions for light stabilization The invention relates to ester mixtures of polyalkylpiperidine derivatives of the formulae I and II ##STR1## in which R.sub.1 is hydrogen or methyl, R.sub.2... |
| US-4,419,471 |
Core-shell polymers Disclosed are improved styrene-butadiene (SBR) core-alkyl acrylate/methacrylate shell-polymer compositions and an improved process for applying patterns to... |
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