Patents by Inventor Alain Blanc
Alain Blanc has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 5292958Abstract: Processes for eliminating the diethanolamine present in triethanolamine and the preparation of triethanolamine or compositions containing triethanolamine substantially free from diethanolamine in which the triethanolamine containing diethanolamine is treated with glyoxal in a molar ratio of glyoxal to diethanolamine greater than or equal to 1, then if desired the triethanolamine obtained or the composition containing it is isolated, and their use.Type: GrantFiled: October 29, 1992Date of Patent: March 8, 1994Assignee: Societe Francaise HoechstInventors: Gabrielle Claud, Alain Blanc
-
Patent number: 5220327Abstract: A decimation filter for converting a train of sigma-delta pulses S(i) in synchronism with a sigma-delta clock (fs) into a train of PCM samples which includes counters (321, 331, 341) driven by the sigma-delta clock (fs) and which is continuously incremented by one during N sigma-delta clock pulses, then decremented by two during N following sigma-delta clock pulses and then incremented again by one during N following sigma-delta clock pulses in order to provide a sequence of incrementation parameter DELTA(n). The decimation filter further includes storages (320, 330, 340) for storing the value of the coefficient C(n) corresponding to the decimation filter transfer function, and incrementers (327, 337, 347) driven by the sigma-delta clock fs for incrementing the storages with the incrementation parameter DELTA(n).Type: GrantFiled: May 4, 1992Date of Patent: June 15, 1993Assignee: International Business Machines CorporationInventors: Jean-Claude Abbiate, Alain Blanc, Patrick Jeanniot, Gerard Orengo, Gerard Richter
-
Patent number: 5204883Abstract: Method and apparatus for recognizing of a framing pattern of M single bits distributed at intervals of a fixed number, N of bits, as measured from the start of one framing bit to the start of the next, in an incoming serial bit stream. The system makes a computation following each reception of an arbitrary group of N incoming data, and after the minimum number of computation steps to distinguish between a `look-alike` framing pattern and a `true` framing pattern, points out with no ambiguity the very position of the "true" pattern within the bit stream, thus allowing synchronization over that stream.Type: GrantFiled: May 1, 1991Date of Patent: April 20, 1993Assignee: International Business Machines CorporationInventor: Alain Blanc
-
Patent number: 5180710Abstract: Ethyl (2E,4Z,7Z)-2,4,7-decatrienoate, a novel compound, is a useful perfuming ingredient capable of imparting odor notes of the pear, green, violet leaf type to the compositions and articles into which it is incorporated. It can also be advantageously used in a variety of flavoring compositions.Type: GrantFiled: October 8, 1991Date of Patent: January 19, 1993Assignee: Firmenich S.A.Inventors: Ferdinand Naef, Rene Decorzani, Regula Naef, Pierre-Alain Blanc, Nicole van Beem
-
Patent number: 5157090Abstract: Glycerol derivatives of general formula (I) ##STR1## in which R=allyl, methylallyl, acryloyl or methacryloyl, R.sub.1 =R.sub.2 =glyoxyloyl, R.sub.1, R.sub.2 =H, glyoxyloyl; their preparation process, their use as cross-linking agnets and cross-linking or cross-linkable compositions containing them. These compounds are useful as crosslinking agents for woven and non-woven fibrous mats and textiles.Type: GrantFiled: October 21, 1991Date of Patent: October 20, 1992Assignee: Societe Francaise HoechstInventors: Didier Wilhelm, Fernand Cuirassier, Alain Blanc
-
Patent number: 5155095Abstract: The reaction product of methyl anthranilate with 3-phenylbutanal is useful as a perfuming ingredient for the preparation of perfuming compositions and perfumed articles, to which it imparts a floral-green odor note of the yellow flower type.Type: GrantFiled: December 19, 1991Date of Patent: October 13, 1992Assignee: Firmenich S.A.Inventors: Pierre-Alain Blanc, Roland Aschiero
-
Patent number: 5151410Abstract: Spiro[5.7]tridec-1-ene-3-one is a useful perfuming ingredient for the preparation of perfuming bases and perfumed articles to which it imparts odor notes of the costus, animal and leather type.Type: GrantFiled: February 6, 1992Date of Patent: September 29, 1992Assignee: Firmenich S.A.Inventors: Wolfgang K. Giersch, Pierre-Alain Blanc, Karl-Heinrich Schulte-Elte
-
Patent number: 5093518Abstract: Glycerol derivatives of general formula (I)CH.sub.2 --ORCH--OR.sub.1 (I)CH.sub.2 --OR.sub.2in which R=allyl, methylallyl, acryloyl or methacryloyl, R.sub.1 =R.sub.2 =glyoxyloyl, R.sub.1, R.sub.2 =H, glyoxyloyl; their preparation process, their use as cross-linking agents and cross-linking or cross-linkable compositions containing them.Application in the textile or paper industry.Type: GrantFiled: January 10, 1990Date of Patent: March 3, 1992Assignee: Societe Francaise HoechstInventors: Didier Wilheim, Fernand Cuirassier, Alain Blanc
-
Patent number: 5081276Abstract: The invention concerns new polyfunctional ethylenic monomers of the general formula (I): ##STR1## where R.sub.1 and R.sub.2 each represent --CHR.sub.3 R.sub.4 where R.sub.3 and R.sub.4 may be identical or different and represent H or an alkyl, alkenyl or aralkyl group. R.sub.1 and R.sub.2 may, alternatively, together form a radical --CH.sub.2 --(CR.sub.5 R.sub.6).sub.n --CHR.sub.7 where n=0 or 1 and R.sub.5, R.sub.6 and R.sub.7 may be identical or different and represent H or CH.sub.3.Particular monomers are:2-cyano-4,4-dimethoxy-3-hydroxy-1-butene;2-cyano-4,4-dibutoxy-3-hydroxy-1-butene.Type: GrantFiled: August 29, 1990Date of Patent: January 14, 1992Assignee: Societe Francaise HoechstInventors: Didier Wilhelm, Alain Blanc
-
Patent number: 4981993Abstract: The invention concerns new polyfunctional ethylenic monomers of the general formula (I): ##STR1## where R=cyano, substituted or unsubstituted acyl, substituted or unsubstituted alkoxycarbonyl or substituted or unsubstituted aryloxycarbonyl; R.sub.1 and R.sub.2 each represent --CHR.sub.3 R.sub.4 where R.sub.3 and R.sub.4 may be identical or different and represent H or an alkyl, alkenyl or aralkyl group. R.sub.1 and R.sub.2 may, alternatively, together form a radical --CH.sub.2 --(CR.sub.5 R.sub.6).sub.n --CHR.sub.7 where n=0 or 1 and R.sub.5, R.sub.6 and R.sub.7 may be identical or different and represent H or CH.sub.3.Particular monomers are: 2-cyano-4,4-dimethoxy-3-hydroxy-1-butene; 2-cyano-4,4-dibutoxy-3-hydroxy-1-butene; 4,4-dibutoxy-2-ethoxycarbonyl-3-hydroxy-1-butene; 2-butoxycarbonyl-4,4-dibutoxy-3-hydroxy-1-butene; 4,4-dimethoxy-2-hydroxythoxycarbonyl-1-butene; 4,4-dimethoxy-2-dimethylaminoethoxycarbonyl -3-hydroxy-1-butene; and 4,4-dimethoxy-2-ethoxycarbonyl-3-hydroxy-1-butene.Type: GrantFiled: August 18, 1988Date of Patent: January 1, 1991Assignee: Societe Francaise HoechstInventors: Didier Wilhelm, Alain Blanc
-
Patent number: 4941151Abstract: A predictive clock extracting circuit having a first circuit for determining the duration between two consecutive transitions of a multilevel digital signal and a second circuit for generating an SPL pulse at half the duration after a third transition following on two consecutive previous transitions. A phase locked oscillator which is driven by said SPL pulse generates the extracted clock signal which is in phase with the SPL pulse and coincides with the center of the eye intervals of said multilevel digital signal. The system includes a first counter N which starts running in response to the detection of the first transition of the multilevel digital signal. The running stops when the second transition occurs. The result N(i) stored into the first counter N at second transition is therefore representative of the duration between the two consecutive first and second transitions.Type: GrantFiled: October 3, 1988Date of Patent: July 10, 1990Assignee: Internationl Business CorporationInventors: Jean-Claude Abbiate, Alain Blanc, Patrick Jeanniot, Eric Lallemand
-
Patent number: 4918139Abstract: These aqueous dispersions contain a copolymerizate containing 90 to 99% by weight of repeating units resulting from the polymerization of a mixture of monomers (a) based on 0.1 to 10% by weight of alpha,beta-ethylenic mono- and/or di-carboxylic C.sub.3 -C.sub.5 acid and/or their amides, 0 to 10% by weight of styrene and/or acrylonitrile, the remainder of the esters of (meth)acrylic acid with C.sub.1 -C.sub.12 alkanols; and 10 to 1% by weight of repeating units of general formula (I) ##STR1## where R=H or --CH.sub.3, R.sub.1 =H or C.sub.1 -C.sub.4 alkyl and R.sub.2 and R.sub.3 =C.sub.1 -C.sub.8 alkyl or a --CH.sub.2 --CR.sub.4 R.sub.5 --(CH.sub.2).sub.n --group in which n=0 or 1 and R.sub.4 and R.sub.5 =H or --CH.sub.3.Type: GrantFiled: April 3, 1989Date of Patent: April 17, 1990Assignee: Societe Francaise Hoechst of Tour Roussel-HoechstInventors: Fernand Cuirassier, Didier Wilheim, Alain Blanc
-
Patent number: 4854934Abstract: They have the formula: ##STR1## where either R.sub.1 and R.sub.2 are identical and represent --CH.sub.2 R where R=H or a C.sub.1 to C.sub.4 alkyl group or R.sub.1 and R.sub.2 together form the --CH.sub.2 (CR.sub.4 R.sub.4).sub.n --CH.sub.2 group where n=0 or 1, R.sub.4 =H or --CH.sub.3, R.sub.3 =H or --CH.sub.2 R.sub.5 where R.sub.5 =H or a C.sub.1 to C.sub.4 alkyl group. A and A.sub.1 are either identical and represent H or A and A.sub.1 together form an ethylene, trimethylene or --CH(OCH.sub.2 R.sub.6)--CH(OCH.sub.2 R.sub.6)-- radical where R.sub.6 =H or a C.sub.1 to C.sub.4 alkyl group or, when R.sub.3 =H, a 1,2 dihydroxy-ethylene group.They are obtained by reacting a disubstituted ethanal ##STR2## with a urea ANH--CO--NHA, followed if required by etherification with an alcohol R.sub.5 CH.sub.2 OH.Type: GrantFiled: March 14, 1988Date of Patent: August 8, 1989Assignee: Societe Francaise HoechstInventors: Didier Wilhelm, Antonio Gelabert, Alain Blanc
-
Patent number: 4845752Abstract: A multiprocessor system includes a plurality of signal processors and a common unit processor. Each of the signal processors is connected to a different source of signals such as voice signals and performs one or more signal processing functions relative to the connected source. The common unit processor performs one or more functions for the signal processors on a shared synchronized basis. A signal processor adapter responsive to a source of clock pulses generates synchronous interrupts applied to the common unit processor and enabling signals in sequence to connect the signal processor in sequence to the common unit processor in synchronization with the interrupts. In addition, the signal processors are provided with ping-pong buffers at their inputs and outputs to enhance throughput.Type: GrantFiled: October 14, 1986Date of Patent: July 4, 1989Assignee: International Business Machines Corp.Inventors: Alain Blanc, Patrick Jeanniot, Sylvie Spalmacin-Roma
-
Patent number: 4835320Abstract: This process for the preparation of products of general formula (I): ##STR1## wherein either R.sub.1 and R.sub.2, which are identical, represent a --CHRR.sub.3 group, in which R and R.sub.3, which are identical or different, represent an alkyl, alkenyl or aralkyl group, or R.sub.1 and R.sub.2, which are identical, represent a --CH.sub.2 R group, in which R represents a hydrogen atom, an alkyl, alkenyl or aralkyl radical, or R.sub.1 and R.sub.2 together form a --CH.sub.2 --(CRR).sub.n --CHR-- radical, in which n represents 0 or 1 and R retains the meaning given previously, is characterized by reacting glyoxal in the presence of an acid catalyst with an excess of the corresponding alcohol of general formula (II) RR.sub.3 CHOH, (III) RCH.sub.2 OH or (IV) --(CRR).sub.n --CHROH, in which R, R.sub.3 and n retain the meaning given previously, then stopping the reaction as soon as the concentration of the desired monoacetal of general formula (I) decreases in the reaction medium in favor of bisacetal.Type: GrantFiled: June 1, 1987Date of Patent: May 30, 1989Assignee: Societe Francaise HoechstInventors: Alain Blanc, Farid Hamedi-Sangsari, Francine J. Chastrette
-
Patent number: 4650877Abstract: The invention concerns a process for producing cyclic ureas of the general formula (II): ##STR1## in which R is selected from the group comprising hydrogen atom and C.sub.1 -C.sub.4 alkyl radicals through condensation in aqueous medium at a pH of between 4 and 7 and at a temperature of between 40.degree. and 60.degree. C. of glyoxal with or without excess of a urea having the general formula (I):RNH--CO--NHR (I)in which R has the same meaning as above, said process being conducted in the presence of a catalytic amount of orthophosphoric acid.Type: GrantFiled: October 25, 1984Date of Patent: March 17, 1987Assignee: Societe Francaise HoechstInventors: Frederic Mabire, Alain Blanc
-
Patent number: 4602106Abstract: Process for producing hydroxyalkylaminoacetic acids having the general formula (I):R--CHOH--CHR.sub.1 --NR.sub.2 --CH.sub.2 --COOH (I)in which:R represents a hydrogen atom, a C.sub.1 -C.sub.18 -alkyl group, with straight or ramified chain, or a phenyl group possibly substituted by one or more radicals (preferably one or two) selected from the group comprising: C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alcoxy or halogeno radicals;R.sub.1 represents a hydrogen atom or a C.sub.1 -C.sub.4 -alkyl group;R.sub.2 represents a C.sub.1 -C.sub.18 -alkyl group or R.sub.3 --CHOH--CHR.sub.4 --group in which R.sub.3 identical to R represents a hydrogen atom or a C.sub.1 -C.sub.18 -alkyl group with straight or ramified chain, and R.sub.4 is identical to R.sub.1, according to which glyoxal is reacted hot upon a secondary hydroxylated amine having the general formula (III): ##STR1## in which R, R.sub.1 and R.sub.2 have the meaning as given above.Type: GrantFiled: March 20, 1985Date of Patent: July 22, 1986Assignee: Societe Francaise HoechstInventor: Alain Blanc
-
Patent number: 4595751Abstract: Novel perhydro-[2,3-c]-oxazolo-1,4-oxazines, having the general formula (I): ##STR1## in which R represents a hydrogen atom or a C.sub.1 -C.sub.5 -alkyl radical, and the process for preparation thereof comprising reacting at a temperature lower than 30.degree. C. one mole of glyoxal with one mole of diethanolamine having the general formula (II): ##STR2## in which R has the same meaning as above.Type: GrantFiled: March 20, 1985Date of Patent: June 17, 1986Assignee: Societe Francaise HoechstInventor: Alain Blanc
-
Patent number: 4088442Abstract: Flexible temporary carriers for dry transfer printing or dyeing, characterized in that they carry a multi-colored print or a print of a single color, produced by means of one or more dyestuffs which can vaporize or sublime below 250.degree. C and at least one of which is either a (di-alkylamino)-anthraquinone of which at least one alkyl radical is an isopropyl radical and which carries in the 2- and 3-position one hydrogen atom, or a 1-amino-anthraquinone which carries, in the 2-position, an ethoxy, methoxy or methyl group, a hydrogen atom or, preferably, a halogen atom and especially a chlorine atom and, in the 4-position, a hydrogen atom or a hydroxyl group, the other dyestuffs optionally present on this carrier behaving in the same way when exposed to heat between 150.degree. and 250.degree. C at atmospheric pressure and use thereof for dry dyeing or dry printing synthetic polyamides.Type: GrantFiled: April 2, 1976Date of Patent: May 9, 1978Assignee: Sublistatic Holding S. A.Inventors: Bernard Hugelin, Claude-Alain Blanc, Charles Serex
-
Patent number: 3993672Abstract: Olefins containing from 3 to 30 carbon atoms are directly oxidized to epoxides and allyl alcohols in the liquid phase by contact with a gas stream comprising oxygen but substantially free from hydrogen, in the presence of two metal compound catalysts which are soluble in the reaction mixture. The catalysts are preferably a compound of a Group VII or VIII metal and a compound of a Group VA or VIA transition metal.Type: GrantFiled: August 21, 1974Date of Patent: November 23, 1976Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Henri Arzoumanian, Alain A. Blanc, Ulrich Hartig, Jacques V. Metzger