The Additional Ring Is One Of The Cyclos In A Polycyclo Ring System Patents (Class 546/195)
  • Patent number: 5071853
    Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.
    Type: Grant
    Filed: February 27, 1990
    Date of Patent: December 10, 1991
    Inventors: Christopher F. Bigge, Sheryl J. Hays, Graham Johnson, Perry M. Novak, Daniel F. Ortwine
  • Patent number: 5055474
    Abstract: Novel 2,3-dihydro-1H-indene derivatives and salts thereof represented by the general formula (1), ##STR1## [wherein R.sup.1 and R.sup.2 are each a hydrogen atom, a lower alkyl group, a phenyl group which may have halogen atoms and/or alkyl groups as the substituents on the phenyl ring; R.sup.3 is a halogen atom or a lower alkyl group; R.sup.4 is a hydrogen atom, a halogen atom, a phenyl-lower alkyl group, a cycloalkyl-lower alkyl group or the like; R.sup.5 is a hydroxyimino group, an alkylamino group or a group of the formula --NHR.sup.8 (wherein R.sup.8 is a hydrogen atom, a halogen-substituted lower alkanoyl group or the like); R.sup.6 is a hydrogen atom or a phenyl group; and R.sup.7 is a hydrogen atom or a lower alkyl group].
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: October 8, 1991
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yasuo Oshiro, Hiraki Ueda, Kazuyuki Nakagawa
  • Patent number: 4933459
    Abstract: Certain acylated benzilic acid derivatives are useful for influencing therapeutically the tone of the urinary bladder in humans and animals. These derivatives are N-alkyl-4-piperidyl .alpha.,.alpha.-diphenyl-.alpha.-acyloxyacetates having the formula ##STR1## wherein R is H, CH.sub.3, C.sub.2 H.sub.5 or C.sub.3 H.sub.7 ; R' is H, NH.sub.2, phenyl, carboxyphenyl, (C.sub.1 -C.sub.6)alkyl, hydroxy(C.sub.1 -C.sub.6)alkyl, methoxy, ethoxy, methoxymethyl, ethoxymethyl, amino (C.sub.1 -C.sub.6)alkyl which can be substituted in the alkyl radical by one or more of a --NH.sub.2, --COOH or --SCH.sub.3 group, N-acetylamino (C.sub.1 -C.sub.6)alkyl, or a group having the formula--CH.dbd.CH--COOR" or --(CH.sub.2).sub.n --COOR"where n is an integer from 0 to 8, and R" is H, CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7, or a pharmacologically acceptable cation; or a salt thereof with a pharmaceutically acceptable acid.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: June 12, 1990
    Assignee: Schaper & Bruemmer GmbH & Co., KG
    Inventors: Eckhart Pein, Helmut Ritter, Reinhard Laven
  • Patent number: 4927928
    Abstract: An aromatic benzamido compound having the formula ##STR1## wherein R.sub.1 represents --CH.sub.2 OH, --CHOHCH.sub.3 or --COR.sub.5,R.sub.5 represents hydrogen, lower alkyl, or --OR.sub.6 or ##STR2## R.sub.6 represents hydrogen, lower alkyl or mono- or polyhydroxyalkyl, r' and r" represent hydrogen, lower alkyl, mono or polyhydroxyalkyl, aryl or benzyl optionally substituted, the residue of an amino acid or aminated sugar or taken together form a heterocycle,R.sub.2 represents an .alpha.,.alpha.'-disubstituted alkyl having 4-12 carbon atoms or mono or polycyclic cycloalkyl having 5-12 carbon atoms, the linking carbon of which is quaternary,R.sub.3 represents hydrogen or alkyl having 1-10 carbon atoms, andR.sub.4 represents a hydrogen, lower alkyl or hydroxy, andthe salts of this aromatic benzamido compound when R.sub.6 represents hydrogen.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: May 22, 1990
    Assignee: Centre International de Recherches Dermatologiques C.I.R.D.
    Inventors: Braham Shroot, Jacques Eustache, Jean-Michel Bernardon
  • Patent number: 4923641
    Abstract: Highly concentrated stable solutions of color-forming agents of the general formula ##STR1## wherein x denotes hydroxyl, alkoxy, alkenyloxy, aralkoxy, cycloalkoxy, aryloxy, acyloxy, alkylamino, dialkylamino, acylamino, aralkylamino or arylamino andR denotes alkyl, alkenyl or aralkyl,further isocyclic or heterocyclic rings can be fused onto the rings A, B, C and D and the cyclic and acyclic radicals and the rings A, B, C and D can carry further non-ionic substituents which are customary in dyestuff chemistry, or mixtures thereof, in water-insoluble organic solvents from the group comprising optionally chlorinated hydrocarbons, vegetable oils and phthalic acid esters are used for the preparation of pressure-sensitive recording materials.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: May 8, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Eckstein, Hubertus Psaar
  • Patent number: 4921955
    Abstract: The invention relates to a process for the preparation of 1,5-disubstituted imidazoles of the formula ##STR1## by alkylation of an N-cyanoformamidine of the formula IIX--NH--CH.dbd.N--CH (II)to form an N,N-disubstituted N'-cyanoformamidine of the formula ##STR2## which is cyclised under the action of bases to form a 4-aminoimidazole of the formula ##STR3## and then reduced to form the product of the formula I. The invention relates also to a special process for the reduction of the aminoimidazole V to I, and to intermediate compounds for carrying out this process and to processes for the preparation of the intermediate compounds.The meaning of the substituents X and L is explained in detail in the text.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: May 1, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Werner Topfl
  • Patent number: 4910226
    Abstract: Invented are substituted acrylate analogues of steroidal synthetic compounds, pharmaceutical compositions containing the compounds, and methods of using these compounds to inhibit steroid 5-.alpha.-reductase. Also invented are intermediates used in preparing these compounds.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: March 20, 1990
    Assignee: SmithKline Beckman Corporation
    Inventors: Dennis A. Holt, Mark A. Levy, Brian W. Metcalf
  • Patent number: 4871842
    Abstract: Novel compounds of the formula: ##STR1## [wherein A is an .alpha.-amino acid residue; B is a group represented by the formula: ##STR2## (wherein R.sup.4 is hydrogen, lower alkyl, aralkyl or amino-lower alkyl), whereby the linkage between the symbols A and B designates a peptide bond and the group R.sup.4 in B may be linked with A; R.sup.1 is hydrogen, lower alkyl or aralkyl; R.sup.2 is hydrogen, lower alkyl, aralkyl or acyl; X is alkylene] and salts thereof possess, for example, inhibitory activity on angiotensin converting enzyme, and are useful as an agent for diagnosis, prevention or treatment of hypertension as well as circulatory diseases such as cardiopathy and cerebral apoplexy.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: October 3, 1989
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hirosada Sugihara, Kohei Nishikawa, Katsumi Ito
  • Patent number: 4816466
    Abstract: Novel Compounds of the formula: ##STR1## [wherein A is an .alpha.-amino acid residue; B is a group represented by the formula: ##STR2## (wherein R.sup.4 is hydrogen, lower alkyl, aralkyl or amino-lower alkyl), whereby the linkage between the symbols A and B designates a peptide bond and the group R.sup.4 is B may be linked with A; R.sup.1 is hydrogen, lower alkyl or aralkyl; R.sup.2 is hydrogen, lower alkyl, aralkyl or acyl; X is alkylene] and salts thereof posses, for example, inhibitory activity on angiotension converting enzyme, and are useful as an agent for diagnosis, prevention or treatment of hypertension as well as circulatory diseases such as cardiopathy and cerebral apoplexy.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: March 28, 1989
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hirosada Sugihara, Kohei Nishikawa, Katsumi Ito
  • Patent number: 4804659
    Abstract: Novel fungicidally active decahydronaphth-2-yl-alkylamines of the formula ##STR1## in which A represents optionally substituted decahydronaphth-2-yl andR.sup.1 and R.sup.2 are identical or different and represent alkyl or alkenyl, orR.sup.1 and R.sup.2, together with the nitrogen atom to which they are bound, represent an optionally substituted, saturated heterocycle which may contain further hetero atoms,or a plant-tolerated acid-addition salts thereof.
    Type: Grant
    Filed: July 8, 1987
    Date of Patent: February 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Weissmuller, Paul Reinecke
  • Patent number: 4757079
    Abstract: Novel compounds of the formula: ##STR1## are described wherein Z is a bicyclic aryl group containing between 9 and 10 ring atoms, up to two of which may be nitrogen and up to one of which may be oxygen or sulfur; A is an ethenyl group which may be lower-alkyl-substituted; and R and R' each represent H or an aliphatic group of 1-4 carbon atoms; or a pharmaceutically acceptable acid addition salt thereof.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: July 12, 1988
    Assignee: Dynamac Corporaton
    Inventor: Allan P. Gray
  • Patent number: 4755323
    Abstract: New 1,4-dioxanes of the formula I ##STR1## wherein R.sup.1 and R.sup.2 each signify and alkyl group with 1 - 10 C-atoms, wherein one or two CH.sub.2 groups can also be replaced by O-atoms, F, Cl, Br or CN,R.sup.2 also H,A.sup.1 and A.sup.2 each signify 1,4-phenylene, 1,4-cyclohexylene, 1,3-dioxane-2,5-diyl, 1,4-dioxane-2,5-diyl, peperidine-1,4-diyl, 1,4-bicyclo(2,2,2)-octylene or pyrimidine-2,5-diyl groups, unsubstituted or substituted by 1 - 4 F-atoms,Z.sup.1 and Z.sup.2 each signify --CO--O--, --O--CO--, CH.sub.2 CH.sub.2 --, OCH.sub.2 -- --CH.sub.2 O-- or a single bond,m and n each signify 0, 1, 2 or 3,(m+n), however, are at least 1 and at most 3,whereby for m=2 or 3, the groups A.sup.1 and for n=2 or 3 the groups A.sup.2 can each be the same or different from one another,as well as the acid-addition salts of the basic ones of these compounds,are suitable for use as components of liquid-crystalline dielectrics.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: July 5, 1988
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Rudolf Eidenschink, Georg Weber
  • Patent number: 4725605
    Abstract: This invention relates to a method of treating ulcers or hypersecretion in a mammal which comprises administering a compound of formula ##STR1## or a pharmaceutically acceptable salt thereof wherein --B--B.sup.1 -- represents a chain of formula--CR.sup.5 .dbd.CR.sup.6 -- (Ib)or--(CHR.sup.5).sub.n --CR.sup.6 .dbd. (Ic);R represents an optionally substituted aryl or heteroaryl radical; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen, or a defined substituent or any adjacent pair of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 together with the carbon atoms to which they are attached complete a five or six membered saturated or unsaturated carbocyclic or heterocyclic ring, said ring being optionally substituted by a defined substituent said heterocyclic ring having at least one heteroatom selected from oxygen, nitrogen and sulphur. Novel compositions and compounds of formula I are also disclosed.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: February 16, 1988
    Assignee: John Wyeth & Brother Limited
    Inventors: Roger Crossley, Peter J. Meade
  • Patent number: 4642373
    Abstract: 1,2,3,4,4a,4b,5,6,7,8,8a,12b-Dodecahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy or alkoxyalkyl)triphenylenes, 2,3,3a,3b,4,5,6,7,7a,11b-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)-1H-cyclopenta[1]-phenanthrenes, 2,3,4,4a,4b,5,6,7,8,8a-decahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy, alkoxyalkyl, aralkyl, aralkoxy, aryloxyalkyl or aralkoxyalkyl)-1H-pyrido[1,2-f]phenanthridines, and 1,2,3,3a,3b,4,5,6,7,7a-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)pyrrolo[1,2-f]phenanthridines and derivatives are valuable as central nervous system active agents or as intermediates to compounds having such activity.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: February 10, 1987
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Michael R. Johnson, Lawrence S. Melvin, Jr.
  • Patent number: 4564698
    Abstract: The present invention relates to new tricyclic compounds of the formula: ##STR1## having valuable CNS and cardiovascular properties.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: January 14, 1986
    Assignee: Akzo N.V.
    Inventors: Johannes H. Wieringa, Frans A. van der Vlugt
  • Patent number: 4540801
    Abstract: The present invention relates to 5-fluoro-PGI.sub.2 derivatives of Formula I. These compounds are useful for the treatment of platelet dysfunction. Also disclosed is the process for preparing them and the appropriate intermediates.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: September 10, 1985
    Assignee: G. D. Searle & Co.
    Inventors: Leonard N. Nysted, Raphael Pappo
  • Patent number: 4486428
    Abstract: Bicyclic fused benzenoid compounds of the formula ##STR1## and pharmaceutically acceptable cationic and acid addition salts thereof, where M is O, CH.sub.2 or NR.sub.6 ; R.sub.6 is hydrogen, formyl, carbobenzyloxy or certain carboalkoxyalkyl, alkanoyl, alkyl, aralkyl or aralkylcarbonyl groups;A' is:(1) A where one of A and B is hydrogen such that when A is hydrogen, B is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 1 or 2; when B is hydrogen, A is C(R.sub.2 R.sub.3)(CH.sub.2).sub.f Q and f is 0 or 1, when taken together A and OR.sub.1 form a lactone or certain derivatives thereof;(2) A' is ##STR2## (3) A' is Q.sub.3 ; Q is CO.sub.2 R.sub.7, COR.sub.8, C(OH)R.sub.8 R.sub.9, CN, CONR.sub.12 R.sub.13, CH.sub.2 NR.sub.12 R.sub.13, CH.sub.2 NHCOR.sub.14, CH.sub.2 NHSO.sub.2 R.sub.17 or 5-tetrazoyl;Q.sub.3 is ##STR3## 5-tetrazolyl, CH.sub.2 CONHCOR.sub.7, COOH or certain ester, amide, carboximido or sulfonimido derivatives thereof, CONHOH, CONHCONH.sub.2, or COCH.sub.2 Q.sub.4 where Q.sub.
    Type: Grant
    Filed: January 13, 1983
    Date of Patent: December 4, 1984
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Michael R. Johnson, Lawrence S. Melvin, Jr.
  • Patent number: 4473704
    Abstract: 1,2,3,4,4a,4b,5,6,7,8,8a,12b-Dodecahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy or alkoxyalkyl)triphenylenes, 2,3,3a,3b,4,5,6,7,7a,11b-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)-1H-cyclopenta[1]phenanthrenes, 2,3,4,4a,4b,5,6,7,8,8a-decahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy, alkoxyalkyl, aralkyl, aralkoxy, aryloxyalkyl or aralkoxyalkyl)-1H-pyrido[1,2-f]phenanthridines, and 1,2,3,3a,3b,4,5,6,7,7a-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)pyrrolo[1,2-f]phenanthridines and derivatives are valuable as central nervous system active agents or as intermediates to compounds having such activity.
    Type: Grant
    Filed: March 16, 1982
    Date of Patent: September 25, 1984
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Michael R. Johnson, Lawrence S. Melvin, Jr.
  • Patent number: 4435336
    Abstract: Aminoarylsulphonic acids which have a relatively high purity and a relatively low content of aminoaryldisulphonic acids can be obtained, if they are prepared, from the corresponding arylammonium hydrogen sulphates, by an improved version of the so-called baking process, wherein the reaction is carried out under pressure at a temperature of at least 140.degree. C. and, at least partially, in the presence of water.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: March 6, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Emde, Heinz U. Blank, Peter Schnegg
  • Patent number: 4329293
    Abstract: An improved process is disclosed for sulfenylating carbamates in the presence of a solvent and acid acceptor, in which the reaction between a carbamate and a sulfenyl halide is conducted in the presence of a catalytic amount of a complex of a lower alkylamine and sulfur dioxide. Several methods for preparing and utilizing the complex in the reaction are disclosed and exemplified.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: May 11, 1982
    Assignee: FMC Corporation
    Inventors: John W. Ager, Maurice J. C. Harding, Charles E. Hatch, III
  • Patent number: 4328227
    Abstract: Compounds of general formula ##STR1## wherein R.sup.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: May 4, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gebert Ulrich, Werner Thorwart, Jaromir Komarek, Carl Cartheuser, Kurt Popendiker, Heinz-Gunther Greve
  • Patent number: 4323691
    Abstract: Described are compounds of the formula ##STR1## wherein ##STR2## wherein Z is hydrogen or loweralkyl, R.sub.5 and R.sub.6 may be the same or different and are hydrogen, loweralkyl or together are alkylene of 4 or 5 carbon atoms,R.sub.2 is hydrogen, halo, haloloweralkyl, loweralkyl, loweralkoxy, loweralkylthio or ##STR3## wherein R.sub.5 and R.sub.6 are previously defined, R.sub.3 is hydroxy, alkoxy, branched alkoxy, adamantyloxy, morpholino, amino or amino substituted by loweralkyl or alkylene of 4 or 5 carbon atoms,R.sub.4 is hydrogen or loweralkyl, andX.sub.1 and X.sub.2 are hydrogen, loweralkyl, halo or when substituted on adjacent carbon atoms of the benzene ring form a 1,3-butadienylene linkage, Y is oxygen or sulfur, and pharmaceutically acceptable salts thereof. The compounds are effective as diuretic agents in increasing urinary excretion.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: April 6, 1982
    Assignee: Abbott Laboratories
    Inventors: Carroll W. Ours, Cheuk M. Lee
  • Patent number: 4276419
    Abstract: An improved process for the preparation of pyridines and/or hydrogenated pyridines that have been substituted with a hydrocarbon group at one or more carbon atoms, .gamma.-cyanoketone, in a gaseous phase and in the presence of hydrogen, is passed in a reaction zone over a first catalyst containing a catalytically active metal or compound of a metal selected from the group copper, silver, gold, iron, nickel, cobalt, ruthenium, rhodium, palladium, osmium, iridium and platinum to form a reaction mixture. A hydrogen-containing gas is separated from the reaction mixture, passed over a second catalyst containing a catalytically active metal or compound of a metal selected from the group iron, nickel and cobalt at a temperature of between 300.degree. and 800.degree. C., and the hydrogen-containing gas so treated is recycled to the reaction zone.
    Type: Grant
    Filed: September 19, 1979
    Date of Patent: June 30, 1981
    Assignee: Stamicarbon, B.V.
    Inventors: Egidius J. M. Verheijen, Charles H. Geersheuvels
  • Patent number: 4196204
    Abstract: Steroids of the formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different and each is hydrogen or the residue of an organic or inorganic acid,and for the esters (R.sub.1 or R.sub.2 is not H) capable of salt formation, the salts thereof, possess valuable pharmacological properties, e.g., good antiandrogenic activity with low progestational activity.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: April 1, 1980
    Assignee: Schering Aktiengesellschaft
    Inventors: Karl Petzoldt, Hermann Steinbeck, Walter Elger
  • Patent number: 4167573
    Abstract: Valuable novel 3,5-dimethyl-piperidin-4-one compounds, substituted at the nitrogen by a long-chain radical, which have a good fungicidal action, and a process for combating fungi by means of these compounds.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: September 11, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Himmele, Karl-Heinz Koenig, Norbert Goetz, Ernst-Heinrich Pommer
  • Patent number: 4156694
    Abstract: The present invention relates to novel benzo(b) bicyclo[3.3.1]nones of the general formula I: ##STR1## and a salt or nitrogen oxide thereof, in which R.sub.1 and R.sub.2 stand for hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 1-6 carbon atoms, an optionally substituted aralkyl group or an acyl group orR.sub.1 and R.sub.2 together with the nitrogen atom represent a heterocyclic 5- or 6-membered ringR.sub.3 is a free, etherified or esterified hydroxy,X and Y stand for hydrogen, hydroxy, halogen, alkyl or alkoxy of 1-6 C-atoms, nitro, CF.sub.3 or an acyloxy group, having valuable biological activities, particularly anorectic activity.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: May 29, 1979
    Assignee: Akzona Incorporated
    Inventors: Colin L. Hewett, David S. Savage, James Redpath, Thomas Sleigh, Duncan R. Rae
  • Patent number: 4153629
    Abstract: 9,10-Dihydro-9,10-methanoanthracene N-oxide derivatives represented by the formula: ##STR1## wherein A represents a straight or branched C.sub.1 -C.sub.6 alkylene; R.sup.1 and R.sup.2 each represents C.sub.1 -C.sub.4 alkyl or phenyl-C.sub.1 -C.sub.4 alkyl, or ##STR2## represents the group ##STR3## and X represents methylene, hydroxymethylene, C.sub.1 -C.sub.4 ##STR4## or hydroxy-C.sub.1 -C.sub.4 ##STR5## and their pharmaceutically acceptable acid addition salts which are useful as anti-depressants, tranquilizers, or anti-epileptics.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: May 8, 1979
    Assignee: Shionogi & Co., Ltd.
    Inventors: Hiroshi Tanida, Tadashi Irie
  • Patent number: 4138419
    Abstract: A novel cyclopentadiene derivative of the general formula: ##STR1## wherein R.sup.1 is hydrogen, a mono- to tetra-hydric alcohol moiety having 1 to 12 carbon atoms, a metal of Groups Ia, IIa and IIb of the Periodic Table, an ammonium group or an organic amine residue; R.sup.2, R.sup.3, and R.sup.4 are independently hydrogen or alkyl groups having 1 to 6 carbon atoms; R.sup.a, R.sup.b, and R.sup.c are independently hydrogen or alkyl groups having 1 to 3 carbon atoms; m is 0 or 1; and n is an integer of 1 to 4. This cyclopentadiene derivative is comparable or even superior to natural rosin in effectiveness as an emulsifier for use in the production of SBR and ABS resins or as a sizing agent in paper making.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: February 6, 1979
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Masatoshi Arakawa, Ryotaro Ohno, Katuhiro Ishikawa, Noboru Yamahara, Hisashi Matsui