Abstract: Synergistic microbicidal compositions are disclosed, comprising 4,5-dichloro-2-octyl-3-isothiazolone and 5 bromo-5-nitro-1,3,dioxane for more effective, and broader control of microorganisms in various systems.
Abstract: Synergistic microbicidal compositions are disclosed, comprising 4,5-dichloro-2-n-octyl-3-isothiazolone and one or more known microbicides for more effective, and broader control of microorganisms in various systems.
Type:
Grant
Filed:
May 3, 1994
Date of Patent:
November 14, 1995
Assignee:
Rohm and Haas Company
Inventors:
Angela B. Downey, Valerie S. Frazier, Gary L. Willingham
Abstract: Process for producing substantially separated 5-chloro-2-methyl-3-isothiazolone (CMI) and 2-methyl-3-isothiazolone (MI) from a mixture of their hydrochloride salts, or in a special mixture having a higher ratio of CMI to MI, comprising heating a mixture of CMI.HCl and MI.HCl for a period of time necessary to fully dissociate said CMI.HCl and form substantially pure CMI, but insufficient to fully dissociate said MI.HCl.
Abstract: A thioacryloyl compound of the formula ##STR1## wherein Z is selected from the group consisting of OR, R and NR.sup.1 R.sup.2 ;R is selected from the group consisting of hydrogen; (C.sub.1 -C.sub.18)alkyl; (C.sub.1 -C.sub.8)alkenyl; (C.sub.1 -C.sub.8)haloalkynyl; 2-(5-chlorothienyl)methyl; phenyl optionally substituted with one or more substituents selected from the group consisting of halo-, (C.sub.1 -C.sub.3)alkoxy-, nitro-, and (C.sub.1 -C.sub.3)alkyl; phenacyl optionally substituted with one or more substituents selected from the group consisting of ring halo-, (C.sub.1 -C.sub.3)alkoxy-, nitro-, and (C.sub.1 -C.sub.3)alkyl; arylalkyl optionally substituted with one or more substituents selected from the group consisting of ring halo-, (C.sub.1 -C.sub.3)alkoxy-, nitro-, and (C.sub.1 -C.sub.3)alkyl;R.sup.1 and R.sup.2 are independently selected from (C.sub.1 -C.sub.8)alkyl and phenyl, or R.sup.1 and R.sup.
Type:
Grant
Filed:
December 13, 1993
Date of Patent:
November 7, 1995
Assignee:
Rohm and Haas Company
Inventors:
Peter Osei-Gyimah, Samuel E. Sherba, Barry C. Lange, Rai J. Mehta, Rhoda W. Joseph
Abstract: A synergistic antimicrobial composition comprising 2-mercaptopyridine N-oxide, and salts thereof, and iodopropargyl butylcarbamate in a ratio to each other which exhibits synergism is disclosed.
Type:
Grant
Filed:
November 4, 1992
Date of Patent:
November 7, 1995
Assignee:
Rohm and Haas Company
Inventors:
Raj I. Mehta, Barry C. Lange, Samuel E. Sherba
Abstract: The present invention provides a method of stabilizing solutions of 3-isothiazolone compound(s) selected from the group consisting of 5-chloro-2-methyl-3-isothiazolone, 2-methyl-3-isothiazolone, and mixtures thereof in water free of nitrate or nitrite by the use of extremely low levels of copper ion, and compositions comprising water solutions of 3-isothiazolone compound(s) selected from the group consisting of 5-chloro-2-methyl-3-isothiazolone, 2-methyl-3-isothiazolone, and mixtures thereof, and extremely low levels copper ion.
Abstract: Microemulsions of water-insoluble active ingredients, employing a special surfactant system and solvent system. These microemulsions remain thermodynamically stable over a wide range of water dilutions.
Abstract: Epoxy molding compositions for surface mount applications are disclosed. The compositions contain multifunctional epoxy resin and multifunctional hardener along with silicone rubber particles, organofunctional silicone fluid and a high loading of silica.
Abstract: Composition as a highly useful concentrated biocide, said composition being solid at 20.degree. C., easily meltable and solidifyable, capable of undergoing remelt and resolidification without loss of homogeneity and method.
Abstract: A biocidal composition comprising a dry, water soluble mixture of a solid bromide and a stable, solid peracetylperoxyborate compound useful as a chlorine-free water treatment system, said peracetylperoxyborate composition generating hypobromous acid upon addition of water. Methods of treating water with said compositions are also disclosed.
Abstract: Disclosed herein are compositions comprisinga) at least one 3-isothiazolone of the formula (I) ##STR1## wherein Y is an unsubstituted or substituted (C.sub.1 -C.sub.18) alkyl, an unsubstituted or substituted (C.sub.3 -C.sub.12) cycloalkyl, an unsubstituted or halogen-substituted (C.sub.2 -C.sub.8) alkenyl or alkynyl, an unsubstituted or substituted (C.sub.7 -C.sub.10) aralkyl, or an unsubstituted or substituted aryl; andR and R.sup.1 is each independently H, halogen or (C.sub.1 -C.sub.4) alkyl; andb) a carbonyl compound selected from the group consisting of (C.sub.2 -C.sub.6) aldehydes, (C.sub.7 -C.sub.10) aromatic aldehydes or acids, (C.sub.2 -C.sub.4) dialdehydes, (C.sub.1 -C.sub.12) acids, (C.sub.2 -C.sub.8) diacids, triacids or tetracids, (C.sub.3 -C.sub.10) .alpha.,.beta. unsaturated carbonyls, (C.sub.1 -C.sub.6) haloamides of the formula ##STR2## where R.sub.1 =phenyl or (C.sub.1 -C.sub.4)alkyl, substituted phenyl,R.sub.2 =(C.sub.1 -C.sub.7)alkyl, (C.sub.1 -C.sub.7)alkoxylalkyl, or (C.sub.1 -C.sub.
Abstract: Nitrosamine-free 3-isothiazolone biocidal compositions suitable for applications where substantial human or animal contact is anticipated, their method of use and process of preparation are disclosed.
Type:
Grant
Filed:
November 18, 1993
Date of Patent:
May 30, 1995
Assignee:
Rohm and Haas Company
Inventors:
Horst O. Bayer, Barry C. Lange, Ramesh B. Petigara
Abstract: In one aspect, compounds, methods of using them, compositions comprising such compounds, and uses of such compositions.These objects, and others which will become apparent from the following disclosure, are achieved by the present invention which comprises in one aspect compounds of the formula ##STR1## wherein R is alkyl, cycloalkyl, aryl, substituted aryl, alkaryl optionally substituted on the aryl portion or aralkyl optionally substituted on the aryl portion, R having up to 20 carbon atoms and is optionally branched, andA is (CH.sub.2).sub.p, (CH.sub.2).sub.q --O--(CH.sub.2).sub.r, or (CH.sub.2).sub.q --S--(CH.sub.2).sub.r,wherein p=2 to 8, q=1 to 8, and r=1 to 8.R.sub.1 =--(CH.sub.2).sub.m --, --(CH.sub.2 CH.sub.2 --O).sub.n --CH.sub.2 CH.sub.2 --, or --(CH.sub.2 CH.sub.2 CH.sub.2 --O).sub.n --CH.sub.2 CH.sub.2 CH.sub.2 --.
Type:
Grant
Filed:
June 10, 1992
Date of Patent:
May 16, 1995
Assignee:
Rohm and Haas Company
Inventors:
Samuel E. Sherba, Raj J. Mehta, Margaret M. Bowers-Daines, Adam C. Hsu
Abstract: Antimicrobial compounds of the formula ##STR1## wherein R, R.sup.1 and R.sup.2 are selected according to the following:A. R is (C.sub.11 -C.sub.16) alkyl (straight or branched), and R.sup.1 and R.sup.2 are joined to form a morpholine, pyrrolidine, or piperidine ring with the N;B. R is (C.sub.11 -C.sub.16) and R.sup.1 and R.sup.2 are independently selected from (C.sub.1 -C.sub.3) alkyl which in the case of C.sub.3 can be branched; andC. R.sup.1 and R.sup.2 are the same and are (C.sub.6 -C.sub.12) alkyl, straight or branched, and R is (C.sub.1 -C.sub.16) alkyl, straight or branched; andX.sup.- =an anion preferably selected from chlorine, bromine, iodine, phosphate, acetate, benzoate, citrate, tartrate, alkyl- or aryl-sulfonate, and alkylsulfate.
Abstract: An improvement to a sample concentrator apparatus for extracting and concentrating trace organic components from an aqueous sample for subsequent analysis; and a method for concentrating trace organics.
Type:
Grant
Filed:
October 14, 1993
Date of Patent:
April 4, 1995
Assignee:
Rohm and Haas Company
Inventors:
Ledelle Collier, Wayne A. Thompson, Jr.
Abstract: Compounds of the formula ##STR1## wherein A is selected from the group consisting of hydrogen, alkyl, aryl, and heterocyclic;Y and Z are independently selected from the group consisting of O, S, and N--R;R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted phenyl, and substituted or unsubstituted heterocyclic; andX is selected from the group consisting of I and Br, are diclosed to useful as antimicrobials.
Abstract: Antimicrobial compounds of the formula ##STR1## wherein A is selected from the group consisting of alkyl; phenyl; alkoxy; phenoxy; benzyloxy; monoalkylamino; dialkylamino; cyclic amino, anilino; heterocyclic; amino substituted with heterocyclic ring, methods of making and using said compounds, and compositions comprising said compounds are disclosed.
Abstract: Girondalones of the formula I useful as microbicides ##STR1## wherein A is a residue of a dialdehyde;R.sub.1 is independently selected from the group consisting of R.sub.2 and (C.sub.1 -C.sub.18)alkyl and;R.sub.2 is ##STR2## wherein (i) X.sub.1 and X.sub.2 can be joined to form a 5 or 6 membered fused carbocyclic ring, said ring being saturated, unsaturated, or aromatic; or(ii) X.sub.1 =Cl, H, methyl, or Br; andX.sub.2 =H, Cl, or Br.
Type:
Grant
Filed:
November 12, 1991
Date of Patent:
January 24, 1995
Assignee:
Rohm and Haas Company
Inventors:
Kevin F. Gironda, Peter Osei-Gyimah, Barry C. Lange
Abstract: An apparatus for pyrolyzing a sample prior to analysis by a gas chromatograph or a mass spectrometer comprising an insertion probe for bearing said sample, a reaction chamber which is mounted to the insertion probe so as to encompass the sample, said insertion probe having a ribbon for depositing said sample and maintaining said sample during a pyrolysis, said insertion probe being removable from said reaction chamber, means for rapidly heating said sample so as to pyrolyze said sample, and an outlet from said reaction chamber to a gas chromatograph or a mass spectrometer; the improvement comprising: means for automatically depositing said sample onto said ribbon while said insertion probe is in said reaction chamber. A method for pyrolyzing samples using said apparatus is also disclosed.
Abstract: Antimicrobial compounds of the formula ##STR1## wherein R is selected from (A)(C.sub.1 to C.sub.20) straight or branched alkyl, optionally substituted with hydroxy, halogen, alkoxy, phenoxy, or --C(.dbd.O)R' wherein R' is selected from C.sub.1 -C.sub.20)alkyl, (C.sub.1 -C.sub.20)alkoxy, phenoxy, or NHR" wherein R" is (C.sub.1 -C.sub.6)alkyl or phenyl; (B) benzyl; (C) phenethyl; (D) cyanoethyl; (E) 2-cyanoethyl; (F) propargyl; and (G) allyl;X=halogen (chlorine, bromine, or iodine), phosphate, acetate, benzoate, citrate, tartrate, alkyl- or aryl-sulfonate, alkylsulfate; and ##STR2## represents a 3-to 7-membered ring that contains at least one nitrogen atom optionally substituted with one or more substituents selected from (C.sub.1 -C.sub.3)alkyl, halo, and carboxyl, said ring optionally containing one or two hetreoatoms in addition to said one nitrogen atom, selected from sulfur, oxygen, and a second nitrogen;Processes for inhibiting microbial growth, and compositions suitable therefore are also disclosed.