Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8039676 | Process for producing phosphine oxide vitamin D precursors A process for producing a compound of the formula: including reacting of a compound of the formula: with diphenyl phosphine oxide using a binary phase reaction mixture including d... | 10/18/2011 |
| 7902403 | Dithiophosphate composition and utility in rubber The present invention relates to oligomeric or polymer dithiophosphate di- or poly-sulfides and their utility in rubbers. Another aspect of the invention is a method for making oligomeric or polymeric dithiophosphates by reacting phosphorous pentasulfide with a di- ... | 03/08/2011 |
| 7772439 | Amino or thiol linker building block for the synthesis of amino- or thiol-functionalized nucleic acids and methods of making and use thereof An amino or thiol linker building block for the synthesis of amino or thiol functionalized amino acids and generally of the following structure: is provided. Such building block may be introduced in the 5′ end position of... | 08/10/2010 |
| 7772440 | Process for preparing phosponates having alcoholic hydroxyl group A novel process for preparing in a high purity and in a high yield phosphonates having a secondary and/or tertiary alcoholic hydroxyl group at the end of a P—C bond chain thereof with the use of a phosphite and a carbonyl compound as raw materials. ... | 08/10/2010 |
| 7439401 | Process for preparing acylphosphanes and derivatives thereof The present invention relates to a new, selective process for the preparation of mono- and bisacylphosphanes of formula (I) n and m are each independently of the other 1 or 2; R1, if n=1, is e.g. phenyl R1, if n=2, is e.g. C1-C1... | 10/21/2008 |
| 7385064 | Catalysts for use in enantioselective synthesis Disclosed are compounds having the following formula: in which Z11 is selected from a substituted or unsubstituted saturated adamantyl or other polycyclic group and a substituted or unsubstituted branched acyclic... | 06/10/2008 |
| 7378556 | Process for making thiophosphine compounds Disclosed is a process for making a thiophosphine compound of formula (I): wherein X represents SH or with R1 being H or —CH3, R and R′ represent, indepe... | 05/27/2008 |
| 7368604 | Method for the production of acylphosphine oxides Process for the preparation of aromatic acylphosphine oxides (II) in which aromatic carboxyphosphines (I) are converted to the acylphosphine oxides (II) ... | 05/06/2008 |
| 7332537 | Three dimensional printing material system and method The present invention is directed to a 3DP™ material composition and method of use. The composition of the present invention includes an adhesive material, a fibrous component and a filler. Alternatively, the composition may include a particulate material having a... | 02/19/2008 |
| 7291657 | Ultraviolet light curing compositions for composite repair An ultraviolet (UV) light curable formulation useful for repairing composite materials, comprising: an acrylic oligomer, an acrylic monomer, and a photoinitiator. This formulation may include fiberglass. The photoinitiator can be a combination of a bis-acylphosphine... | 11/06/2007 |
| 7291656 | Ultraviolet light curing compositions for composite repair An ultraviolet (UV) light curable formulation useful for repairing composite materials, comprising: an acrylic oligomer, an acrylic monomer, and a photoinitiator. This formulation may include fiberglass. The photoinitiator can be a combination of a bis-acylphosphine... | 11/06/2007 |
| 7276542 | Ultraviolet light curing compositions for composite repair An ultraviolet (UV) light curable formulation useful for repairing composite materials, comprising: an acrylic oligomer, an acrylic monomer, and a photoinitiator. This formulation may include fiberglass. The photoinitiator can be a combination of a bis-acylphosphine... | 10/02/2007 |
| 7214830 | Process for the preparation of acylphosphines, acyl oxides and acyl sulfides A description is given of processes for the preparation of mono- and bisacylphosphines and of mono- and bisacylphosphine oxides and mono- and bisacylphosphine sulfides, which comprises first reacting organic P-monohalogenophosphines or P,P-dihalogenophosphines, or m... | 05/08/2007 |
| 7205286 | (20S)-1α-hydroxy-2α-methyl and 2β-methyl-19-nor-vitamin Dand their uses This invention discloses (20S)-1α-hydroxy-2α-methyl-19-nor-vitamin D3 and (20S)-1α-hydroxy-2β-methyl-19-nor-vitamin D3 and pharmaceutical uses therefor. These compounds exhibit pronounced activity in arresting the proliferation of undiffere... | 04/17/2007 |
| 7196228 | Multimer forms of mono-and bis-acylphosphine oxides The invention relates to dimer and multimer form of BAPO compounds of the formula (I) dimer and multimer forms of MAPO compounds of the formula (II) wherein R1, R2, and R3 independently of one another are unsubstituted or substituted... | 03/27/2007 |
| 7169826 | Optical fiber coatings Optical fiber coating compositions which comprise at least one ethylenically unsaturated polymerizable compound and a photoinitiator blend, wherein the blend comprises (a) bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide and (b) 2,4,6,-trimethyl... | 01/30/2007 |
| 7148382 | Bathochromic mono- and bis-acylphosphine oxides and sulfides and their use as photoinitiators Compounds of formula (I), wherein A is S or O; x is 0 or 1; a is SR10 or N(R11)(R12); R1 and R2 are C1–C24alkyl, OR10, CF3 or halogen; R3, R4 a... | 12/12/2006 |
| 7144544 | Ultraviolet light curing compositions for composite repair An ultraviolet (UV) light curable formulation useful for repairing composite materials, comprising: an acrylic oligomer, an acrylic monomer, and a photoinitiator. This formulation may include fiberglass. The photoinitiator can be a combination of a bis-acylphosphine... | 12/05/2006 |
| 7134875 | Processes for forming dental materials and device Processes for forming dental materials that include applying a first hardenable dental composition (e.g., a dental adhesive) to a surface followed by applying a second hardenable dental composition (e.g., a dental composite) to the first hardenable dental compositio... | 11/14/2006 |
| 7129367 | Phosphine compound, its intermediate, its complex with palladium and a manufacturing method of unsaturated compounds by using the palladium complex Palladum-phosphine complexes obtained by reacting a 5 compound of formula (1) below with a palladium compound: F(I) (wherein R1 is a hydrogen atom, an alkyl group, a cycloalkyl group or a phenyl group which may be substituted; R2 and R3 | 10/31/2006 |
| 7112692 | β-ketophosphonates A method for making β-ketophosphonates by reacting a trialkyl phosphonocarboxylate (such as triethyl phosphonoacetate) with an acyl halide (such as acetyl chloride) in a reaction involving ester formation, followed by decarboxylation, followed by purification. The ... | 09/26/2006 |
| 7109250 | Multimer forms of acylphosphines and their derivatives Compounds of the formula (I), in which E is O or S; and x is 0 or 1, A is cyclopentyl, cyclohexyl, naphthyl, biphenylyl, anthracyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring, where the mentioned radicals are unsubstituted or substituted by halog... | 09/19/2006 |
| 7109286 | Phosphorus-containing hydroquinone derivatives, process for their production, phosphorus-containing epoxy resins made by using the derivatives, flame-retardant resin compositions, sealing media and laminated sheets A phosphorus-containing hydroquinone derivative represented by a general formula (1): (where R1 and R2 represent linear or branched alkyl groups that are identical or may be different, and/o... | 09/19/2006 |
| 7094931 | Process for the preparation of acylphosphines, acyl oxides and acyl sulfides A description is given of processes for the preparation of mono- and bisacylphosphines and of mono- and bisacylphosphine oxides and mono- and bisacylphosphine sulfides, which comprises first reacting organic P-monohalogenophosphines or P,P-dihalogenophosphines, or m... | 08/22/2006 |
| 7067701 | Preparation of phosphorus-containing compounds useful in the preparation of biphosphine ligands This invention relates to processes for making phosphorus compounds R2P—X—PR2, R2P-M, R2P-L and R3P, and the novel cation R2P+(L)-X—P+(L)R2, where R represents a... | 06/27/2006 |
| 7064115 | (20S)-1α-hydroxy-2α-methyl and 2β-methyl-19-nor-vitamin Dand their uses This invention discloses (20S)-1α-hydroxy-2α-methyl-19-nor-vitamin D3 and (20S)-1α-hydroxy-2β-methyl-19-nor-vitamin D3 and pharmaceutical uses therefor. These compounds exhibit pronounced activity in arresting the proliferation of undiffere... | 06/20/2006 |
| 7026017 | Organometallic monoacylalkylphosphines Compounds of the formula I in which Ar is a group or unsubstituted or substituted cyclopentyl, cyclohexyl, naphthyl, biphenylyl or an O-, S- or N-con... | 04/11/2006 |
| 7015360 | Asymmetric catalysts prepared from optically active bisphosphites bridged by achiral diols This invention relates to asymmetric hydroformylation (hf) processes in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active aldehyde or product derived from an opticall... | 03/21/2006 |
| 6977312 | Phosphor, arsenic and antimony compounds based upon diaryl-anellated bicyclo[2.2.n] parent substances and catalysts containing same Novel compounds of phosphorus, of arsenic and of antimony can be used as ligands to form complexes of metals of transition group VIII which can be used in catalysts for hydroformylation, hydrocyanation, carbonylation, hydrogenations, oligomerization and polymerizati... | 12/20/2005 |
| 6974885 | Method for isolating pharmaceutically exploitable etidronate disodium The method of isolating an anhydrous etidronate disodium particulate includes preparing a liquid-liquid dispersion consisting of an aqueous-organic phase and an etidronate-disodium-salt-containing aqueous phase; adjusting a temperature of the liquid-liquid dispersio... | 12/13/2005 |
| 6972320 | Ligation method and reagents to form an amide bond Methods and reagents for the formation of amide bonds between an activated carboxylic acid derivative and an azide useful in the synthesis of peptides, proteins and derivatized or labeled amino acids, peptide or proteins. The method involves the formation of a phosp... | 12/06/2005 |
| 6969733 | Organometallic monoacylalkylphosphines Compounds of the formula I (I), in which Ar is a group or unsubstituted or substituted cyclopentyl, cyclohexyl, naphthyl, biphenylyl or an O-, S- or N-contai... | 11/29/2005 |
| 6906112 | Radiation-curable, cyanoacrylate-containing compositions A radiation-curable composition which includes a cyanoacrylate component or a cyanoacrylate-containing formulation; a metallocene component; and a polymerizingly effective amount of a photoinitiator to accelerate the rate of cure is provided. ... | 06/14/2005 |
| 6900251 | Dental materials based on acrylic-ester phosphonic acids Acrylic ester phosphonic acids of general formula (I), stereoisomers thereof and mixtures of these, wherein n is 1 or 2, on the condition that for n=1 R1 has the meaning ... | 05/31/2005 |
| 6888031 | Process for the preparation of acylphosphines, acyl oxides and acyl sulfides A description is given of processes for the preparation of mono- and bisacylphosphines and of mono- and bisacylphosphine oxides and mono- and bisacylphosphine sulfides, which comprises first reacting organic P-monohalogenophosphines or P,P-dihalogenophosphines, or m... | 05/03/2005 |
| 6878665 | Diphosphines, their complexes with transisition metals and their use in asymmetric synthesis The invention relates to novel diphosphines, in optically pure or racemic form, of formula (I): in which: R1 and R2 are a (C5-C7)cycloalkyl... | 04/12/2005 |
| 6849669 | Hydrophilic macromolecular compounds The invention relates to macromolecular hydrophilic photocrosslinkers having polymeric backbones of substituted ethylene groups carrying photoactive groups. The photocrosslinkers are capable of producing, when being exposed to light of determined wavelengths above 3... | 02/01/2005 |
| 6737549 | Organometallic monoacylalkylphosphines Compounds of the formula I Ar is a group or unsubstituted or substituted cyclopentyl, cyclohexyl, naphthyl, biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyc... | 05/18/2004 |
| 6683219 | Synthesis of A-ring synthon of 19-nor-1,25-dihydroxyvitamin D3 from (D)-glucose The present invention provides a method for the synthesis of an A-ring synthon phosphine oxide used in the preparation of 19-nor vitamin D compounds, and to novel synthetic intermediates formed during the synthesis. The new method prepares the phosphine o... | 01/27/2004 |
| 6664427 | Process for preparing aldehyde compounds The invention relates to a process for the making organic aldehyde compounds from an unsaturated compound by hydroformylation and in the presence of a catalyst system comprising a Group VIII metal and a bidentate phosphorus ligand having two trivalent pho... | 12/16/2003 |
