Sulfur Or Phosphorus Containing Preservative Or Stabilizer Patents (Class 558/307)
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Publication number: 20140121399Abstract: The polymerization of monomers may be at least partially reduced or inhibited by introducing an effective amount of an additive. The additive may be or include a first compound: where: R1 and R2 may be or include an alkyl group, an aryl group, an alkyl group having a heteroatom, an aryl group having a heteroatom, and combinations thereof. The hetero atom may be or include sulfur, nitrogen and/or oxygen. R1 may be the same or different from R2. The polymerizable monomers may be or include, but are not limited to styrene, butadiene, isoprene, acrylic acid, acrylonitrile, vinyl acetate, and combinations thereof.Type: ApplicationFiled: October 25, 2012Publication date: May 1, 2014Applicant: BAKER HUGHES INCORPORATEDInventors: Hua Mo, Roger D. Metzler
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Patent number: 7893099Abstract: The invention relates to a compound of formula (I) wherein A1 and R1 to R5 are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament.Type: GrantFiled: June 2, 2010Date of Patent: February 22, 2011Assignee: Hoffman-La Roche Inc.Inventors: David Banner, Simona M. Ceccarelli, Uwe Grether, Wolfgang Haap, Hans Hilpert, Holger Kuehne, Harald Mauser, Jean-Marc Plancher, Ruben Alvarez Sanchez
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Patent number: 6512023Abstract: An adhesive composition includes a polymerizable adhesive monomer, at least one vapor phase stabilizer, and at least one liquid phase stabilizer. The combination of at least one vapor phase stabilizer and at least one liquid phase stabilizer provides superior stabilization and shelf-life for the monomer composition. The stabilized adhesive composition provides superior performance and shelf-life and can be sterilized without significant polymerization of the monomer.Type: GrantFiled: June 18, 1998Date of Patent: January 28, 2003Assignee: Closure Medical CorporationInventors: Bernard Malofsky, Andrés Rivera, Gabriela Rueda
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Patent number: 5646295Abstract: The invention concerns diazapentalene derivatives of formula I ##STR1## in which X and Y represent leaving groups which are less nucleophilic than thiol compounds, as thiol-specific fluorochromes for the detection of compounds containing thiol groups, in particular in cells.Type: GrantFiled: January 31, 1996Date of Patent: July 8, 1997Assignee: Boehringer Mannheim GmbHInventors: Rudolf Gompper, Manfred Kubbies, Axel Schmidt, Bernhard Virnekas
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Patent number: 5468870Abstract: Dye-donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer containing a dye corresponding to the following formula ##STR1## wherein Z represents CN, COOR.sup.1 or CONR.sup.2 R.sup.3 ;R.sup.1, R.sup.2 and R.sup.3 each independently represent hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or R.sup.2 and R.sup.3 together represent the necessary atoms to close a heterocyclic nucleus or substituted heterocyclic nucleus;Y represents OR.sup.4 or NR.sup.5 R.sup.6 or CN;R.sup.4 represents hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, SO.sub.2 R.sup.7, COR.sup.7, CSR.sup.7, POR.sup.7 R.sup.8 ;R.sup.5 and R.sup.6 each independently has one of the significances given to R.sup.4 or represent substituted or unsubstituted amino, or R.sup.5 and R.sup.Type: GrantFiled: October 20, 1994Date of Patent: November 21, 1995Assignee: AGFA-GAVAERT, N.V.Inventor: Luc J. Vanmaele
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Patent number: 5424343Abstract: A cyanoacrylate monomer adhesive formulation which has improved thermal properties resulting from the inclusion in the formulation of an effective amount for enhancing the thermal resistance of the cured polymer of a naphthosultone compound having at least one strong electron withdrawing group thereon, suitably a nitro group.Type: GrantFiled: October 8, 1992Date of Patent: June 13, 1995Assignee: Loctite CorporationInventor: Shabbir Attarwala
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Patent number: 5302681Abstract: The premature free-radical polymerization of a non-linear, readily polymerizable organic monomer under conditions where the monomer would otherwise polymerize is inhibited by incorporating within the non-linear, readily polymerizable monomer a polymerization inhibiting amount of a fullerene or a derivative thereof.Type: GrantFiled: December 10, 1992Date of Patent: April 12, 1994Assignee: Nalco Chemical CompanyInventor: Robert D. McClain
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Patent number: 4602092Abstract: A method is provided for preparing phosphinic acid prodrug intermediates which are useful in preparing phosphinic acid angiotensin-converting enzyme inhibitors which method includes the step of coupling a phosphonous acid or its ester of the structure ##STR1## wherein R is H or lower alkyl and R.sup.1 is lower alkyl, aryl, arylalkyl, cycloalkyl or cycloalkylalkyl, with an alkylating agent of the structure ##STR2## wherein Hal is Cl, Br or I, n is 0 or 1, R.sup.2 is H or lower alkyl, and Z is H, lower alkyl, --CO.sub.2 R.sup.3 (wherein R.sup.3 is H or lower alkyl), ##STR3## (wherein R.sup.4 is H, lower alkyl, aryl or arylalkyl), --CN, or ##STR4## (wherein R.sup.5 and R.sup.6 may be the same or different and are selected from the group consisting of H, lower alkyl, aryl, aryl-lower alkyl, cycloalkyl or cycloalkylalkyl and at least one of R.sup.5 and R.sup.6 is other than H, or R.sup.5 and R.sup.Type: GrantFiled: January 22, 1985Date of Patent: July 22, 1986Assignee: E. R. Squibb & Sons, Inc.Inventors: John K. Thottathil, Jerome L. Moniot