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Pet Toilet-Like Water Disk and Food Storage
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| Number | Title | Issue Date |
| 4649225 | Hydrogenolysis of polyalkylene glycols to produce monoethylene glycol monoalkyl ethers, monoethylene glycol and ethanol This invention relates to a process for selectively cleaving a polyalkylene glycol, e.g., diethylene glycol, containing at least one ether group therein at a carbon-to-oxygen covalent bond and independently at a carbon-to-carbon covalent bond by heating t... | 03/10/1987 |
| 4633025 | Method for preparing (+)R-2-methyl-hexane-1,2-diol A method for preparing important stereospecific intermediates in the synthesis of prostaglandin analogs is disclosed. Said intermediates are (+)R-2-methyl-hexane-1,2-diol and (-)S-2-methyl-hexane-1,2-diol and are prepared via an asymmetric halolactonizati... | 12/30/1986 |
| 4609768 | Process for synthesis of ethylene glycol from synthesis gas plus 1,3-dioxolane using 1,3-dioxolane as a solvent This invention relates to the manufacture of ethylene glycol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus 1,3-dioxolane in the presence o... | 09/02/1986 |
| 4568780 | Process for low pressure synthesis of ethylene glycol from synthesis gas plus 1,3-dioxolane This invention relates to the manufacture of ethylene glycol and more particularly to a low pressure process for making ethylene glycol comprising reacting synthesis gas, i.e. a mixture of carbon monoxide and hydrogen, plus 1,3-dioxolane in the presence o... | 02/04/1986 |
| 4533774 | Process for the production of ethylene glycol Ethylene glycol is produced by reacting at elevated temperature methanol, a polymeric source of formaldehyde and an organic peroxide having the formula R--O--O--R1 wherein R and R1 are independently either alkyl or aralkyl groups con... | 08/06/1985 |
| 4510336 | Transetherification method Transetherification is carried out in a catalytic distillation reactor, wherein the catalytic structure also serves as a distillation structure, by feeding a first ether to the catalyst bed to at least partially dissociate it into a first olefin and a fir... | 04/09/1985 |
| 4503275 | Production of butane-1,4-diol Butane-1,4-diol is produced by converting allyl alcohol to an allyl t-alkyl or -cycloalkyl ether of the general formula: ##STR1## wherein R1 and R2 each, independently of the other, represent a C1 to C4 alk... | 03/05/1985 |
| 4474973 | Acidic mixed oxide catalytic dealkylation to produce 1,4-butanediol and tetrahydrofuran A coproduct continuous dealkylation process is described in which 4-t-butoxy-n-butanol is contacted with acidic silica-alumina catalyst at temperatures in the 160°-200° C. range (reactor wall temperature) in the liquid hourly space velocity regime of 2:... | 10/02/1984 |
| 4368337 | Process for converting glycol dialkyl ether A process is described for converting glycol dialkyl ether without substantial formation of olefin oligomers by reaction with water, comprising reacting a feed glycol di-tertiary alkyl ether represented by structural formula (A) with water using a strongl... | 01/11/1983 |
| 4313008 | Synthesis of S-3-chloro-1,2-propanediol The S-enantiomer of 3-chloro-1,2-propanediol is prepared by reaction of a chlorodeoxy-D-saccharide having the partial structure. ##STR1## to cleave the glycol, reduce the aldehyde so formed to an alcohol, and hydrolyse the alcohol under mild acidic c... | 01/26/1982 |
| 4287127 | Production of tetrahydrofuran Tetrahydrofuran is produced by converting allyl alcohol to an allyl t-alkyl or -cycloalkyl ether of the general formula: ##STR1## wherein R1 and R2 each, independently of the other, represent a C1 to C4 alk... | 09/01/1981 |
| 4254290 | Acidic mixed oxide catalytic de-alkylation of tertiary-alkyl-ether-alkanols A de-alkylation process which comprises contacting a t-alkylether-alkanol, e.g. 4-t-butylether-n-butan-1-ol, with an acidic solid mixed oxide, e.g. silica-alumina, catalyst which results in the formation of alkanediols, e.g. 1,4-butanediol, in the substan... | 03/03/1981 |
| 4096192 | Process for the preparation of 2-methyl-1,3-propanediol A process for the preparation of 2-methyl-1,3-propanediol (MPD) by recycling mixed diols from the process for the preparation of 1,4-butanediol from acrolein and aliphatic diols until the final product is essentially 1,4-butanediol and MPD.... | 06/20/1978 |
| 4069261 | Process for the production of polyhydric alcohols Polyhydric alcohols can be produced in high selectivity from substituted 1,3-dioxanes containing at least one hydroxyalkyl group by heating, in the presence of water, said 1,3-dioxane or mixtures thereof in contact with boric acid, boric acid anhydride or... | 01/17/1978 |
| 4065511 | Alcohol production Selected organic peroxides are converted to the corresponding alcohols when contacted with a triorganophosphine in a reaction medium comprising water and an organic solvent miscible with water. In one embodiment, diene polyperoxides are converted to the n... | 12/27/1977 |
| 4024197 | Production of butanediol 2-VINYL-5-METHYL-1,3-DIOXANE IS PROVIDED AS A NEW CYCLIC ACETAL WHICH, WHEN HYDROFORMYLATED, HYDROLYZED AND HYDROGENATED PROVIDES HIGH YIELDS OF A MIXTURE OF 1,4-BUTANEDIOL AND 2-METHYL-1,3-PROPANEDIOL.... | 05/17/1977 |
| 4010195 | Process for producing methyl p-toluate P-Tolualdehyde freed from reaction-inhibiting substances is autooxidized by a gas containing molecular oxygen in an aliphatic ketone or fatty acid ester solvent under pressure in the absence of catalyst to produce per-p-toluic acid. The resulting per-p-to... | 03/01/1977 |
| 3947503 | Manufacture of 1,6-hexanediol from butadiene 1,6-Hexanediol is manufactured by hydroformylation of 1,3-butadiene by a process wherein an acetal of pent-3-en-1-al is formed in a first hydroformylation step in the presence of lower alkanols or alkanediols and of rhodium catalysts, and is then converte... | 03/30/1976 |
| 3933923 | Process for the manufacture of vicinal glycols A process for the manufacture of higher vicinal diols or polyols by hydrolysis of the corresponding mono- or poly-epoxides, characterized in that the hydrolysis is carried out using aqueous solutions of salts of aliphatic mono- and/or polycarboxylic acids... | 01/20/1976 |
