Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7309756 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 12/18/2007 |
| 7297754 | Method for the preparation of aromatic chloroformates A method for preparing an aromatic chloroformate comprising, introducing a mixture of at least one aromatic hydroxyl compound, phosgene, at least one solvent, and at least one organic base into a flow reactor to obtain a unidirectionally flowing reaction mixture. Th... | 11/20/2007 |
| 7232865 | Transparent and high-heat polycarbonate-polysiloxane copolymers and transparent blends with polycarbonate and a process for preparing same A method is provided for making siloxane polycarbonate copolymers and blends of other polycarbonates with such copolymers wherein the copolymers and blends have excellent transparency and physical characteristic. ... | 06/19/2007 |
| 7151143 | Blends containing macrocyclic polyester oligomer and high molecular weight polymer The invention provides blends of macrocyclic polyester oligomer (MPO) with high-molecular-weight polymer and polymerization catalyst as friable, one-component, ready-to-polymerize materials with long shelf life. The invention also provides methods for preparation an... | 12/19/2006 |
| 7071291 | Isolation, formulation and shaping of macrocyclic oligoesters Processes for isolating, formulating, and shaping macrocyclic oligesters were developed which allow efficient production of macrocyclic oligoesters substantially free from solvent, which may include additives, fillers, and catalysts. ... | 07/04/2006 |
| 7022806 | Methods for converting linear polyesters to macrocyclic oligoester compositions and macrocyclic oligoesters Macrocyclic oligoesters and compositions comprising macrocyclic oligoesters are prepared from intermediate molecular weight polyesters. In one embodiment, a diol is contacted with a dicarboxylic acid or a dicarboxylate in the presence of a catalyst to produce a comp... | 04/04/2006 |
| 6994914 | Macrocyclic polyester oligomers and processes for polymerizing the same A water slurry process is used to prepare a prepreg and to manufacture articles from macrocyclic polyester oligomers. In one embodiment, a process for preparing a water suspension of macrocyclic polyester oligomers includes the steps of contacting a macrocyclic poly... | 02/07/2006 |
| 6962968 | Purification of macrocyclic oligoesters Acid impurities, such as carboxylic acid-terminated polymers, are removed from macrocyclic oligoesters with ion exchange resins, resulting in macrocyclic oligoesters that are substantially free of acid impurities. The ion exchange resins can be regenerated anew and ... | 11/08/2005 |
| 6960626 | Intimate physical mixtures containing macrocyclic polyester oligomer and filler The invention provides intimate physical mixtures of macrocyclic polyester oligomer (MPO) and filler, as well as methods for their preparation and use. Improved dispersion of filler in a polymer matrix is achieved upon polymerization, and larger amounts of filler wi... | 11/01/2005 |
| 6911558 | Method for purifying chloromethyl chloroformate Describes a method for obtaining substantially pure chloromethyl chloroformate from a chloroformate mixture comprising chloromethyl chloroformate and methyl chloroformate by heating the chloroformate mixture in a reaction zone at temperatures ranging from at least 5... | 06/28/2005 |
| 6906147 | Catalytic systems This invention relates to single-component and multi-component catalytic systems using aryl titanates. Aryl titanate compounds are useful as catalysts and co-catalysts in single-component and multi-component catalytic systems (e.g., for the polymerization of macrocy... | 06/14/2005 |
| 6613929 | Process for preparation of fluoroformates A process for the preparation of fluoroformates of the formula ##STR1## wherein R1 is a saturated or unsaturated, substituted or unsubstituted and primary or secondary aliphatic, a saturated or unsaturated, substituted or unsubstituted secondar... | 09/02/2003 |
| 6479690 | Phosgenation under pressure of alcohol's for producing chloroformates The invention concerns a method for phosgenation of monohydroxy alcohol's and/or polyols characterised in that it consists of treating alcohol and or polyol, whether in the presence of solvent or not, with a molar excess of phosgene, preferably 2 to 30 ti... | 11/12/2002 |
| 6175017 | Process for the production of aryl carbonates A process for the preparation of carbonates containing aromatic ester groups is disclosed. The process entails reacting aromatic monohydroxy componds with phosgene or with chlorocarbonic acid esters of aromatic monohydroxy compounds at a temperature of 50... | 01/16/2001 |
| 5162564 | Method for making oligomeric carbonate bischloroformates with low phosgene usage Oligomeric carbonate bischloroformates are prepared with low phosgene usage by phosgenating a dihydroxyaromatic compound in an interfacial reaction in the presence of small amounts of trialkylamine, preferably, triethylamine. In this invention, the molar ... | 11/10/1992 |
| 5144055 | Liquid crystalline bis-chlorocarbonic acid esters Liquid crystalline bis-chlorocarbonic acid esters are 4-hydroxybenzoic acid-(4'-hydroxyphenyl) esters corresponding to the following formula ##STR1## wherein R1, R2, R3 and R4 denote, independently of one a... | 09/01/1992 |
| 5142088 | Preparation of branched polycarbonates and chloroformates, and intermediates therefor Ester polyphenols such as the tris(bisphenol A) ester of trimellitic acid are prepared by the reaction of the corresponding aromatic poly(acyl halide) with a dihydroxyaromatic compound such as bisphenol A. They may be employed in the preparation of branch... | 08/25/1992 |
| 5011967 | Method for preparing aromatic bischloroformate compositions Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and... | 04/30/1991 |
| 5011966 | Low phosgene method for preparing aromatic bischloroformates Aromatic bischloroformates are prepared by the reaction of a dihydroxyaromatic compound such as bisphenol A with phosgene in the presence of water, base and an organic liquid such as methylene chloride. Initially, a mixture of the bisphenol, organic liqui... | 04/30/1991 |
| 4994595 | Preparation of spirobiindane bisphenol bischloroformate compositions Bischloroformate compositions are prepared from spirobiindane bisphenols by phosgenation in a substantially inert organic liquid in a two-step reaction. The pH during the first step is maintained in the range of about 8-14 by addition of aqueous base. In ... | 02/19/1991 |
| 4973729 | Method for preparing hydroquinone and hydroquinone-bisphenol a Bischloroformates Bischloroformates of bisphenol compositions comprising hydroquinone or a hydroquinone-bisphenol A mixture are prepared by passing phosgene into a vigorously agitated mixture of water, an alkaline earth metal hydroxide, the bisphenols and a substantially i... | 11/27/1990 |
| 4904810 | Bischoloroformate preparation method with phosgene removal and monochloroformate conversion Aqueous bischloroformates are prepared by the reaction of a dihydroxyaromatic compound (e.g., bisphenol A) with phosgene in a substantially inert organic liquid (e.g., methylene chloride) and in the presence of an aqueous alkali metal or alkaline earth me... | 02/27/1990 |
| 4814420 | Detecting the stoichiometric end point of phosgenation reactions A method is provided for determining the stoichiometric end point of phosgenation reactions which produce polycarbonates and chloroformates, respectively, by monitoring the rate of heat generated by the reaction mixture per unit of phosgene utilized.... | 03/21/1989 |
| 4810813 | Method for making reaction products of phosgene and dihydric phenol with stable suspension of dihydric phenol, alkali metal hydroxide and water A method is provided for making reaction products of phosgene and dihydric phenol under interfacial reaction conditions. The dihydric phenol such as BPA is introduced into the reactor in the form of a stable suspension which reduces phosgene hydrolysis, m... | 03/07/1989 |
| 4767877 | Nitrogen-containing bisphenol compositions Bisamide and bisurethane bisphenols and bishaloformates are prepared by the reaction of amines with dicarboxylic acid halides or bisphenol bishaloformates. They are useful as intermediates for the preparation of cyclic heterocarbonates, which may in turn ... | 08/30/1988 |
| 4722995 | Detecting the stoichiometric end point of phosgenation reactions A method is provided for determining the stoichiometric end point of phosgenation reactions which produce polycarbonates and chloroformates, respectively, by monitoring the rate of heat generated by the reaction mixture per unit of phosgene utilized.... | 02/02/1988 |
| 4701544 | Method for making reaction products of phosgene and dihydric phenol A method is provided for making reaction products of phosgene and dihydric phenol, such as bischloroformates and polycarbonates utilizing a reactor with an overhead condenser. Reduced phosgene blow-by is achieved by using an absorber for phosgene which is... | 10/20/1987 |
| 4649210 | Reducing phosgenation reaction temperatures A method is provided for reducing the reflux temperatures of methylene chloride in phosgenation reactions by introducing a second inert vaporizable component to the reaction medium. This second inert vaporizable component has a lower vaporization temperat... | 03/10/1987 |
| 4638077 | Method for the preparation of chloroformate compositions Chloroformate compositions, particularly bischloroformate compositions, are prepared by the reaction of phosgene with a hydroxy compound, preferably a dihydroxy compound such as bisphenol A, in a heterogeneous mixture, while adding a hydrogen chloride sca... | 01/20/1987 |
| 4614829 | Process for the preparation of -chlorinated chloroformates Process for the preparation of -chlorinated chloroformates with the formula ##STR1## where R is H, an aliphatic or aromatic hydrocarbon radical or heterocyclic radical, substituted or non-substituted and n an integer. The process consists of r... | 09/30/1986 |
| 4601858 | Method for preparing bischloroformate compositions Bischloroformate compositions are prepared by passing gaseous phosgene into an agitated aqueous solution of a di-(alkali metal) salt of an organic dihydroxy compound such as bisphenol A, while maintaining said solution at a temperature within the range of... | 07/22/1986 |
| 4592872 | Process for the synthesis of -chlorinated chloroformates Process for the synthesis of -chlorinated chloroformates, and new -chlorinated chloroformates. The invention relates to a new process for the manufacture of -chlorinated chloroformates and, to new -chlorinated chloroformates as... | 06/03/1986 |
| 4592874 | Process for the synthesis of alpha-chlorinated chloroformates Process for the synthesis of -chlorinated chloroformates, and new -chlorinated chloroformates. The invention relates to a new process for the manufacture of -chlorinated chloroformates and, to new -chlorinated chloroformates as... | 06/03/1986 |
| 4568391 | Sizing agents The invention provides new sizing agents, in particular for paper, which contain chloroformic acid esters of ester alcohols and/or carboxamide alcohols. The chloroformic acid esters in question preferably have the following idealized structure: wherein X=... | 02/04/1986 |
| 4415722 | Branched aromatic polycarbonate from aliphatic polyol This invention relates to the use of polyol compounds as branching agents for the manufacture of randomly branched novel polycarbonates. The polycarbonates are useful for the fabrication of blow molded articles.... | 11/15/1983 |
| 4411838 | Unsymmetrical polynitrocarbonates and symmetrical 1,3-bis(halo- and nitroalkyl carbonyldioxy)-2,2-dinitropropanes and methods of preparation Unsymmetrical carbonates of the formula ##STR1## are prepared by the following reaction sequence ##STR2## where R and R' can each be --CH2 C(NO2)3, CH2 CF(NO..2)2, --CH2 CF2... | 10/25/1983 |
| 4372877 | Di(acylperoxy)-1,4-cyclohexane dimethanol-bis-carbonates Di(acylperoxy)-bis-carbonates of the formula: ##STR1## wherein each R is selected from alkyl and aryl of up to about 20 carbon atoms. The new molecules have exceptional thermal stability, which facilitates storage at ambient temperatures. They have u... | 02/08/1983 |
| 4332744 | Unsymmetrical polynitrocarbonates and methods of preparation Unsymmetrical carbonates of the formula ##STR1## are prepared by the following reaction sequence ##STR2## where R and R' can each be --CH2 C(NO2)3, CH2 CF(NO..2)2, --CH2 CF2... | 06/01/1982 |
| 4293503 | Synthesis of polyol bis(allyl carbonate) utilizing reagent recovery and recycle Disclosed is an improved method of forming polyol (allyl carbonate) monomers. In the disclosed method, the organic by-products as diallyl carbonate and unreacted reagents as allyl alcohol are separated from the brine and wash water derived aqueous phase a... | 10/06/1981 |
| 4273726 | Polyol (allyl carbonate) synthesis utilizing solid alkali metal hydroxide Disclosed is a method of synthesizing a polyol (allyl carbonate) by the alkali metal hydroxide catalyzed reaction of allyl alcohol and a polyol chloroformate where a portion of the alkali metal hydroxide is anhydrous.... | 06/16/1981 |
