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Class 549/201 - With preservative or stabilizer


Subclass of Class 549 - Organic compounds -- part of the class 532-570 series
Definition: Products which contain a compound having an oxygen containing
No. of patents: 19
Last issue date: 04/29/2008


NumberTitleIssue Date
7365113Phosphate ester flame retardants from resorcinol-ketone reaction products
Flavan-based and spirodichroman compound-based phosphate esters prepared by reacting flavans and spirodichroman compounds with phosphorus oxychloride, monophenyl dichlorophosphate, or diphenyl chlorophosphate compounds are described. The flavans and spirodichroman c...
04/29/2008
7282066Processes for preparing and using tanning agents and preservatives
A process for the preparation of aqueous formulations, and aqueous formulations so prepared, the process comprising heating at least one cyclic compound of the formula I in the presence of water and of an acidic ...
10/16/2007
6858730Process for the production of high purity melamine from urea
A method for purifying melamine comprising impurities like ureido-melamine, oxotriazines, melam, melem, comprises the step of putting into contact at a temperature comprised between 340° C. and 410° C. and at a pressure comprised between 8 and 17 MPa a melamine me...
02/22/2005
6713042Ascorbic acid analogs for metalloradiopharmaceuticals
The invention relates to the use of ascorbic acid analogs as buffering reagents and chelating agents for the preparation of metalloradiopharmaceuticals. Also, invention relates to the use of ascorbic acid as a buffering reagent, a chelating agent, and a stabilizer f...
03/30/2004
6583174Composition and method for stabilizing the same
Disclosed is a novel composition comprising a novel bi-cyclic compound, which is expected to be pharmaceutically active, and a glyceride. The stability of the bi-cyclic compound can be improved significantly by dissolving the same in a glyceride....
06/24/2003
6518339Aldehyde emission reduction for dibenzylidene sorbitol clarified plastics
An additive that is used in conjunction with certain dibenzylidene sorbitol-type (DBS) clarifiers and acid scavengers within polyolefin resins to reduce the release of aldehydes from polypropylene material is disclosed. Hydrazides have been shown to be ef...
02/11/2003
6403811Recovery of chroman derivatives
A process for recovering a concentrate of chromans from a distillate containing chromans is provided comprising the steps of: (1) forming chroman phosphates in the distillate; (2) subjecting the distillate to shearing forces, in the presence of a gas of f...
06/11/2002
5852159Plastic with reduced sulfur uptake rate
The present invention relates to plastics comprising a high molecular weight, sterically hindered amine, wherein the sterically hindered amine is at least one amine from the group consisting of I: oligomerized 2,2,4,4-tetramethyl-20(oxiranylmethyl)-7-oxa-...
12/22/1998
5831102Chemiluminescent 3-(substituted adamant-2'-ylidene) 1,2-dioxetanes
Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile substituent thereof is intentionally clea...
11/03/1998
5260310Oxetanone compounds and pharmaceutical compositions containing them
Novel compounds of the formula ##STR1## wherein Q, R1 and R2 are described herein, are disclosed along with pharmaceutical compositions, methods of use, and process for producing compounds of formula I which starts from the corr...
11/09/1993
5241080Process for stabilizing dibenzylidenesorbitols and composition thereof
A process for stabilizing dibenzylidenesorbitols comprising incorporating 0.05-20 pts. wt. sorbic acid and/or potassium sorbate in 100 pts. wt. dibenzylidenesorbitol represented by the following formula, ##STR1## and a stabilized dibenzylidenesorbito...
08/31/1993
5026875Stability-improved trioxane composition
Disclosed is a composition comprising 1,3,5-trioxane, and more particularly a stability-improved trioxane composition....
06/25/1991
4814428Method of increasing the thermal stability of cyclic carbonate oligomers
The thermal stability of cyclic carbonate oligomers may be increased by treating a solution of the oligomers with an effective amount of a hydrogen halide....
03/21/1989
4634773Thiazolidinylethylchlorocarbonates
This invention relates to 2-(thiazolidin-2'-yl) ethylchlorocarbonates useful as intermediates in the synthesis of photographic image dye-providing materials and to their preparation by the reaction of the appropriate 2-(2'-hydroxyethyl)-thiazolidine with ...
01/06/1987
4448977Stabilized acetal-acid compositions
A storage stable composition of glutaraldehyde acetals and an organic acidic catalyst, which can be converted to glutaraldehyde at the site and upon demand, by the addition of water....
05/15/1984
4377712Preparation of meta-substituted diaryl ethers
A process for the preparation of meta-substituted diaryl ethers comprises reacting an ortho-haloaryl compound with a phenol compound in a non-aqueous medium in the presence of an alkaline metal base. In a specific embodiment m-phenoxytoluene is prepared b...
03/22/1983
4185019Process for preparing 4-phenyl-1,3-dioxane
A process for preparing 4-phenyl-1,3-dioxane from styrene and formaldehyde using a simplified method for working up the reaction mixture is disclosed, which comprises reacting styrene with an aqueous formaldehyde solution in the presence of an acidic cata...
01/22/1980
4125540Process for stabilizing trioxane
A process for stabilizing trioxane, characterized by adding thereto a specific trivalent organic phosphorus compound is disclosed....
11/14/1978
4075229Process for stabilizing metaldehyde and stabilized composition
Process for stabilizing metaldehyde which involves mixing the metaldehyde and 0.005 to 5 percent by weight, based on the weight of the metaldehyde, of an inorganic base or organic base having a pK number of 6.5 to 12.5. The inorganic base or the organic b...
02/21/1978
 
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