Contains An Exterior Ethylenic Substituent Bonded To A Single Carbon Atom Of The Bridged Ring System Patents (Class 526/282)
-
Patent number: 4261872Abstract: The invention is concerned with novel autoxidizable compositions comprising an unsaturated acid ester of a glycol monodicyclopentenyl ether, a condensation or vinyl addition polymer, a siccative and a volatile stabilizer, which compositions are uniquely adapted to be formulated with high solids and practical viscosity ranges for coating and/or impregnating purposes.Type: GrantFiled: May 22, 1978Date of Patent: April 14, 1981Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Kayson Nyi
-
Patent number: 4259468Abstract: A rubbery copolymer of ethylene, an .alpha.-olefin having 3 to 10 carbon atoms and a polyene, characterized by having (A) an ethylene/.alpha.-olefin mole ratio of from 50/50 to 95/5, (B) an iodine value of from 5 to 50, (C) an intrinsic viscosity [.eta.], measured in decaline at 135.degree. C., of from 1.0 to 6.0 dl/g, (D) a weight average molecular weight/number average molecular weight ratio (Mw/Mn) of from 3 to 15, and (E) an iodine value index .alpha..sub.1 for the lower molecular weight components and an iodine value index .alpha..sub.2 for the higher molecular weight components, said .alpha..sub.1 and .alpha..sub.2 falling within the ranges -30.ltoreq..alpha..sub.1 .ltoreq.0 and 0<.alpha..sub.2 .ltoreq.30. Said copolymer can be obtained by copolymerizing ethylene, the .alpha.-olefin having 3 to 10 carbon atoms and polyene at a temperature of from about 40.degree. C. to about 100.degree. C. in the presence of a catalyst composed of (a) a vanadium compound of the formula VO(OR).sub.n X.sub.Type: GrantFiled: August 7, 1979Date of Patent: March 31, 1981Assignee: Mitsui Petrochemical Industries Ltd.Inventors: Hirokazu Kajiura, Kazuhiko Murata, Hidekuni Oda, Tatsuo Yasutake
-
Patent number: 4254248Abstract: Monomeric polysiloxanes end-capped with activated unsaturated groups polymerized with a comonomer comprising a polycyclic ester of acrylic acid or methacrylic acid to form a soft contact lens is disclosed. These instant polysiloxane copolymer contact lenses have unexpectedly high tear strengths and unexpectedly high modulus of elasticity.Type: GrantFiled: September 13, 1979Date of Patent: March 3, 1981Assignee: Bausch & Lomb IncorporatedInventors: Gary D. Friends, Martin F. VanBuren
-
Patent number: 4234711Abstract: This invention relates to liquid adhesive and/or sealing compositions capable of hardening or curing under exclusion of oxygen comprising dicyclopentenyloxyethyl acrylate and/or methacrylate and an organic peroxy compound having 3 to 18 carbon atoms selected from the group consisting of organic peroxides and organic hydroperoxides, preferably the latter, and an imide or amine accelerator.Type: GrantFiled: August 9, 1978Date of Patent: November 18, 1980Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Vincent J. Moser
-
Patent number: 4224430Abstract: A resinous composition comprising(1) 40-90 parts by weight of one or more oligomers obtained by reacting a polyhydric alcohol or its derivative with a monobasic acid of the formula, ##STR1## wherein X is an .alpha.,.beta.-unsaturated hydrocarbon group having 2 or 3 carbon atoms, and(2) 10-60 parts by weight of one or more polymerizable monomers having at least one polymerizable double bond in the molecule, has high solid content and gives molded articles excellent in water resistance, chemical resistance and hardness rise in addition to excellent properties of conventional unsaturated polyester resins.Type: GrantFiled: April 28, 1977Date of Patent: September 23, 1980Assignee: Hitachi Chemical Company, Ltd.Inventors: Iwao Maekawa, Isao Uchigasaki, Shouzi Takamizawa, Akira Kageyama
-
Patent number: 4208500Abstract: An acrylic copolymer vulcanizate, which is a sulfur-vulcanized product of an acrylic copolymer, the acrylic copolymer being obtained by the radical polymerization of a monomeric mixture consisting essentially of 100 parts by weight of at least one acrylic acid ester of an aliphatic alcohol containing 1 to 8 carbon atoms and about 1 to about 15 parts by weight of a 5-substituted-2-norbornene of the general formula ##STR1## wherein R represents .dbd.CH--CH.sub.2).sub. x CH.sub.3, in which x is 0 to 4, or --CH.dbd.CH.sub.2, in the presence of about 0.05 to about 3.0 parts by weight, per 100 parts by weight of the monomeric mixture, of a sulfur vulcanization accelerator which does not cause degradative chain transfer.Type: GrantFiled: November 15, 1978Date of Patent: June 17, 1980Assignee: Mitsubishi Belting LimitedInventors: Tadao Matsuo, Satoshi Mashimo, Eiichi Takami, Kyoichi Mishima, Hiroshi Namizashi, Etsuji Uenoyama, Masanori Kakei
-
Patent number: 4200722Abstract: Novel, rubbery copolymers of ethylene with at least one other .alpha.-alkene such as propylene, and a polyene such as 5-ethylidene norbornene-2, characterized by a differential scanning calorimetry thermogram maximum peak at a temperature between -7.degree. and +11.degree. C., are disclosed. These specific rubbery copolymers when one or more tackifiers are included therein, exhibit an unprecedentedly high tack and consequently provide for the first time EPDM-type compositions that have sufficient building tack for the manufacture of multi-ply articles such as tires.Type: GrantFiled: November 19, 1976Date of Patent: April 29, 1980Assignee: Stamicarbon, B.V.Inventors: Albertus J. Pennings, Arnold Vossebeld
-
Patent number: 4189601Abstract: Ethylenically unsaturated blocked aromatic diisocyanates are prepared which readily polymerize to form homopolymers and interpolymers with copolymerizable vinylidene monomers. Polymers can be prepared via emulsion polymerization, and exhibit excellent stability to hydrolysis when stored in latex form. The polymers cure at temperatures as low as 80.degree. C., and under acidic, neutral, or basic pH conditions. Homopolymers and interpolymers of the defined diisocyanates are useful as adhesives, and interpolymers of the ethylenically unsaturated blocked aromatic diisocyanates with acrylate monomers are particularly useful as binders for nonwoven fibers.Type: GrantFiled: June 19, 1978Date of Patent: February 19, 1980Assignee: The B. F. Goodrich CompanyInventor: Harold A. Tucker
-
Patent number: 4172951Abstract: (Meth)acrylic acid esters of tricyclo [5.2.1.0..sup.2.6 ]-decane derivatives having the formula ##STR1## wherein A represents the radical ##STR2## wherein R is a divalent hydrocarbon having 2 to 6 carbon atoms selected from the group consisting of alkylene, alkenylene, cyclohexylene, phenylene and tetrahydrophenylene, and R.sub.1 is a member selected from the group consisting of hydrogen and methyl; as well as the process for the production of the esters, and their use in adhesive or sealing compositions which harden under exclusion of oxygen.Type: GrantFiled: March 24, 1978Date of Patent: October 30, 1979Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Werner Gruber, Joachim Galinke
-
Patent number: 4168358Abstract: In a method for producing olefin polymers which comprises polymerizing ethylene monomer alone, or two components comprising ethylene and .alpha.-olefins of the formula, CH.sub.2 .dbd.CHR (in which R is a straight or branched alkyl group having 1 to 6 carbon atoms), or three components comprising ethylene, said .alpha.-olefin and one or more of straight or cyclic diene or polyene monomers having a non-conjugated double bond, in the presence of a catalyst, the improvement which comprises using a catalyst system comprising (1) an organo-aluminum compoum, (2) a 3- to 5-valent vanadium compound soluble in organic inert solvents, and (3) (A) a compound of the formula, ##STR1## (in which R' is a group having a straight or cyclic ether linkage, and X is a halogen atom), or (B) a reaction product of phosphorus pentachloride with an alcohol as an activating agent.Type: GrantFiled: June 27, 1977Date of Patent: September 18, 1979Assignee: Sumitomo Chemical Company LimitedInventors: Hiroyuki Harada, Yuji Kobayashi, Keisaku Yamamoto
-
Patent number: 4156767Abstract: EP polymer of low molecular weight containing 0.02% to 0.6% by weight vinyl norbornene or norbornadiene whereby the cold flow of the EP polymer is improved with resultant improvement in recoverability and handling without noticeable modification in molecular weight distribution or shear stability and without interfering with the use thereof as an oil additive, and without so much as to decrease oil solubility rate.Type: GrantFiled: May 16, 1977Date of Patent: May 29, 1979Assignee: Copolymer Rubber & Chemical CorporationInventor: James R. Hall
-
Patent number: 4156765Abstract: New polymers with K values of from 20 to 140, in which the side chains contain optically active 1,6,6-trimethylnorpinanyl-2-methyl or 3-pinanyl-methyl groups, so that the polymers are also optically active. The polymers are used for the production of coatings and adhesives, as optical modifiers for films, and for finishing paper and textiles.Type: GrantFiled: February 27, 1978Date of Patent: May 29, 1979Assignee: BASF AktiengesellschaftInventors: Heinz Pohlemann, Horst Koenig, Hardo Siegel, Herbert Naarmann
-
Patent number: 4145503Abstract: The invention is concerned with novel autoxidizable compositions comprising an unsaturated acid ester of a glycol monodicyclopentenyl ether, a condensation or vinyl addition polymer, a siccative and a volatile stabilizer, which compositions are uniquely adapted to be formulated with high solids and practical viscosity ranges for coating and/or impregnating purposes.Type: GrantFiled: March 28, 1977Date of Patent: March 20, 1979Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Kayson Nyi
-
Patent number: 4144212Abstract: Air-curing copolymer latices are described. The preferred copolymer latices are prepared by emulsion copolymerization, in the presence of a free radical polymerization catalyst such as inorganic or organic peroxide polymerization catalysts, with a blend (in % by weight based on the total weight of all monomers used) of (a) about 1% to about 20% of dicyclopentadienyl acrylate or dicyclopentadienyl methacrylate, (b) about 99% to about 20% of an alkyl acrylate or methacrylate, including mixtures of such monomers, and preferably a lower alkyl acrylate or methacrylate in which the alkyl groups contain from 1 to 4 carbon atoms, (c) 0% to about 5% of acrylic acid or methacrylic acid, and (d) 0% to about 85% of other monoethylenically unsaturated copolymerizable monomers.Type: GrantFiled: March 6, 1978Date of Patent: March 13, 1979Assignee: Alcolac Inc.Inventors: Seymour M. Linder, John W. Calentine
-
Patent number: 4141868Abstract: The present invention is concerned with film-forming polymer dispersions, especially in aqueous systems, such as aqueous solutions of polymers of monoethylenically unsaturated monomers as well as latices or dispersions in an aqueous medium of water-insoluble particles of polymers, such as those obtained by emulsion polymerization. It involves the addition to such aqueous polymer systems in order to improve hardness, blocking-resistance, print-resistance and film-formation to yield coherent films at room temperature or below, of a non-volatile, reactive monomer comprising a (meth)acrylic acid ester of a monohydroxy diolether of dicyclopentenyl alcohol to serve as an air-curing coalescent.The designation (meth)acrylic acid is intended to refer to either acrylic acid or methacrylic acid and also generically to both. Similarly, (meth)acrylate, if and when used in the specification and claims herein, is intended to generically refer to an "acrylate" and a "methacrylate".Type: GrantFiled: June 14, 1977Date of Patent: February 27, 1979Assignee: Rohm and Haas CompanyInventors: William D. Emmons, Kayson Nyi
-
Patent number: 4136247Abstract: Dimethylnorbornene, isopropylnorbornene or a mixture thereof is copolymerized by ring opening with (1) at least one acyclic monoolefin or nonconjugated acyclic olefin and (2) optionally, dicyclopentadiene. The copolymers are thermoplastics which can be calendered and thermoformed, for example, to make rigid automotive goods such as glovebox covers, hubcaps and the like.Type: GrantFiled: December 5, 1977Date of Patent: January 23, 1979Assignee: The B. F. Goodrich CompanyInventors: Linwood P. Tenney, Parley C. Lane, Jr.
-
Patent number: 4136249Abstract: 1,2-Dihydrodicyclopentadiene is copolymerized by ring opening with (1) norbornene, at least one alkylnorbornene or a mixture thereof and (2) at least one acyclic monoolefin or nonconjugated acyclic olefin. The copolymers can be calendered and thermoformed, for example, to make rigid automotive goods such as glovebox covers, hubcaps, and the like.Type: GrantFiled: December 5, 1977Date of Patent: January 23, 1979Assignee: The B. F. Goodrich CompanyInventors: Linwood P. Tenney, Parley C. Lane, Jr.
-
Patent number: 4136248Abstract: At least one alkylnorbornene, wherein the alkyl group contains from 8 to 12 carbon atoms, is copolymerized by ring opening with (1) at least one acyclic monoolefin or nonconjugated acyclic olefin and (2) optionally, dicyclopentadiene. These copolymers have substantially lower glass transition temperatures than lower alkylnorbornene copolymers and can be injection molded to make appliance housings and the like, or calendered and thermoformed to make, for example, automotive goods such as glovebox covers and the like.Type: GrantFiled: December 5, 1977Date of Patent: January 23, 1979Assignee: The B. F. Goodrich CompanyInventor: Linwood P. Tenney
-
Patent number: 4133946Abstract: New polymers which contain 1,6,6-trimethylnorpinanyl-2-methyl or 3-pinanylmethyl groups, i.e. macromolecular compounds in which the side chains contain optically active groups, so that the polymers may also be optically active. The new polymers may be used for the production of moldings, coatings and adhesives and as optical modifiers for films.Type: GrantFiled: March 20, 1978Date of Patent: January 9, 1979Assignee: BASF AktiengesellschaftInventors: Hardo Siegel, Herbert Naarmann
-
Patent number: 4131729Abstract: An improved dental composition having shortened hardening time and after hardening increased compressive strength and abrasion resistance, including a radical-inducing compound and a polymerizable acrylic or methacrylic acid ester or diester compound with at least 20 percent by weight of the polymerizable compound being the diacrylic or dimethacrylic acid ester of bishydroxymethyltricyclo [5.2.1.0.sup.2,6 ]-decane. Other monofunctional or difunctional acrylic or methacrylic acid esters as well as fillers, pigments and stabilizers can be included.Type: GrantFiled: April 21, 1978Date of Patent: December 26, 1978Assignee: ESPE Fabrik Pharmazeutischer Praparate GmbHInventors: Werner Schmitt, Robert Purrmann, Peter Jochum, Wolf-Dietrich Zahler
-
Patent number: 4130701Abstract: A resin suitable as a tackifier is prepared by polymerizing using a Friedel Crafts catalyst:(1) a petroleum resin feed comprising C.sub.5 olefins and diolefins, C.sub.6 olefins and diolefins or a mixture of C.sub.5 and C.sub.6 olefins and diolefins, said feed being obtained from the cracking of petroleum feedstock, and(2) an additive comprising vinyl norbornene or tetrahydroindene.The resin thus prepared may be mixed with a natural or synthetic rubber.Type: GrantFiled: October 12, 1977Date of Patent: December 19, 1978Assignee: Exxon Research & Engineering Co.Inventor: Andre Lepert
-
Patent number: 4129557Abstract: A novel copolymer resin having excellent compatibility with rubber and plastics, stable to air, easily soluble in the hydrocarbon solvents and free of gel, said resin being obtained either (1) by copolymerizing one or more of the monomeric substances selected from the group consisting of cyclopentadiene, dicyclopentadiene and alkyl-substituted compounds thereof and one or more of the substances selected from the hydroxystyrene derivatives, or (2) by copolymerizing one or more of the monomeric substances selected from the group consisting of cyclopentadiene, dicyclopentadiene and alkyl-substituted compounds thereof, one or more of the substances selected from the codimers of cyclopentadiene and/or alkyl-substituted compounds thereof and chain conjugated diolefins having 4 to 5 carbon atoms, and one or more of the substances selected from the hydroxystyrene derivatives. There are also provided compositions comprising said resin and rubber or thermoplastic high-molecular weight substances.Type: GrantFiled: May 23, 1977Date of Patent: December 12, 1978Assignee: Sumitomo Chemical Company, LimitedInventors: Ken-ichi Kudo, Yoshihiko Kitawaga, Teruhisa Koyama, Akira Takata, Shuichi Kanagawa, Tetsuo Yamaguchi
-
Patent number: 4125699Abstract: A linear ethylene-propylene random rubbery copolymer composed of 78 to 85 mole% of an ethylene unit and 15 to 22 mole% of a propylene unit and having a Mooney viscosity (ML.sub.1+4, 100.degree. C) of 30 to 50 and a molecular weight distribution corresponding to a Q value of 3.5 to 5.5. The rubbery copolymer may further contain a nonconjugated diene unit in an amount of 4 mole% or less based on the total amount of the ethylene, propylene and nonconjugated diene units. The ethylene-propylene copolymer or ethylene-propylene-nonconjugated diene copolymer affords a cable coating material having improved processability, and when blended with polyethylene or polypropylene, gives a blend having good flowability.Type: GrantFiled: May 17, 1977Date of Patent: November 14, 1978Assignee: Japan EP Rubber Co., Ltd.Inventors: Akira Yamamoto, Masao Shiraishi, Masakatu Isozumi, Masato Yoshikawa
-
Patent number: 4110528Abstract: At least one norbornene-type monomer is copolymerized with about 0% to about 95% by weight of dicyclopentadiene, based upon total polymer weight. The polymerization is primarily by ring opening and is conducted in the presence of (1) a catalyst comprising (a) at least one compound selected from the group consisting of dialkylaluminum iodides, alkylaluminum diiodides and mixtures of trialkylaluminum compounds with iodine, (b) at least one dialkylaluminum chloride or alkylaluminum dichloride and (c) at least one monomer- or solvent-soluble tungsten compound, and (2) at least one nonconjugated acyclic olefin having at least one hydrogen on each double-bonded carbon atom. Catalyst components (a) and (b) are charged before catalyst component (c). Use of a catalyst containing components (a), (b) and (c) produces easy-processing and substantially gel-free polymers, whereas a catalyst containing only (a) and (c) or only (b) and (c) produces heavily gelled polymers.Type: GrantFiled: March 28, 1977Date of Patent: August 29, 1978Assignee: The B. F. Goodrich CompanyInventor: Robert J. Minchak
-
Patent number: 4100336Abstract: A method for the continuous manufacture of hydrocarbon resins starting from polymerizable insaturated hydrocarbons adapted to selectively obtain clear resins having well determined viscosities or softening points and to control the temperature of the polymerization reaction conducted in the presence of a Lewis acid as catalyst and recycling a fraction of the reaction mixture, due to the improvement comprising the steps of forming a close mixture of the catalyst and of the hydrocarbon fraction to be polymerized in a reactor, said mixture containing, by weight, from 0.05 to 0.8 part, and preferably from 0.1 to 0.Type: GrantFiled: March 16, 1977Date of Patent: July 11, 1978Assignee: Societe Chimique des CharbonnagesInventors: Emile Yax, Aurelien Abad
-
Patent number: 4098984Abstract: Process for preparation of monomers of the formula ##STR1## wherein R is hydrogen or methyl;X and Y are independently selected from the group consisting of NO.sub.2, halogen, --CN and --CF.sub.3 ; andm and n can range from 0 to 3.Typical monomers embraced by the above formula can be prepared by Lewis Acid catalyzed esterification of methacrylic acid with a diazo derivative of an electron acceptor such as 9-diazo-2,4,7-trinitrofluorenone. These monomers can be used with other binders or polymerized by standard, free-radical techniques to polymers capable of forming self-supporting films which are useful in electrophotographic imaging members and methods.Type: GrantFiled: April 20, 1977Date of Patent: July 4, 1978Assignee: Xerox CorporationInventor: Sam R. Turner
-
Patent number: 4052549Abstract: Terpene polymer compositions that have softening points in the range of 0.degree. C. to 85.degree. C. and that are useful as components of hot melt coating compositions, adhesives, and the like, are copolymerized employing from about 20% to 80%, oligomers of cyclic monoterpene hydrocarbons, such as dipentene dimer and/or trimer, and from 80% to 20% of a terpene monomer, such as .beta.-pinene, dipentene or mixtures thereof, said percentages being by weight.Type: GrantFiled: May 24, 1976Date of Patent: October 4, 1977Assignee: Arizona Chemical CompanyInventor: James William Booth
-
Patent number: 4051312Abstract: Sulfur vulcanizable elastomers comprise interpolymers of a major proportion of (a) one or more olefinic or haloolefinic hydrocarbons; (b) one or more esters of acrylic acid in which the acyclic or alicyclic radical moiety of the ester is free of olefinic unsaturation; and (c) a minor proportion, of about 0.10 to 10 mol percent of the total monomers present in the interpolymer, of an acyclic conjugated diolefin, prepared with a catalyst system comprising a Lewis acid, a vanadium compound and a source of free-radicals such as an organic peroxide. The polymer chain consists of segments of alternating olefin and acrylic ester monomer units of variable length interconnected by randomly distributed diolefin units and the sum of the olefin and diolefin monomers in moles is substantially equal to the sum of the acrylic esters in moles present in the interpolymer.Type: GrantFiled: November 6, 1975Date of Patent: September 27, 1977Assignee: Exxon Research & Engineering Co.Inventor: Irving Kuntz
-
Patent number: 4048146Abstract: Radiation sensitive polymers comprising:A. from about 1 to 100 mole percent of a polymerized monomer having the formula ##STR1## wherein R is a hydrocarbon group having from 2 to 20 carbon atoms, preferably a bridged hydrocarbon group having from 6 to 10 carbon atoms; andB. from 0 to about 99 mole percent of at least one additional polymerized ethylenically unsaturated monomer are advantageously soluble in organic solvents, possess desirably high glass transition temperatures and are capable of undergoing a photochemical reaction to yield polymers having isocyanate and oxy-substituted cyclopropane moieties which are capable of crosslinking in the presence of active hydrogen-containing compounds. The polymers are useful in radiation sensitive compositions and elements containing same.Type: GrantFiled: December 20, 1976Date of Patent: September 13, 1977Assignee: Eastman Kodak CompanyInventor: John Charles Wilson
-
Patent number: 4048425Abstract: Alternating elastomeric interpolymers comprised of: (A) about 50 mol percent of one or more acyclic or alicyclic esters of acrylic acid wherein the ester radical moiety is free of olefinic unsaturation or readily replaceable halogen; (B) one or more of acyclic or alicyclic Type I or Type III mono-olefins; and (C) 0.3 to 30 mol percent of one or more halomethylated aromatic vinyl compounds, the sum of the (B) and (C) components totalling about 50 mol percent of the interpolymer. The interpolymers can be readily substituted or crosslinked with nucleophilic reagents at moderate temperatures. The crosslinked elastomers possess good tensile strength, elongation and modulus and have utility as general purpose, or particularly as oil and heat resistant elastomers.Type: GrantFiled: January 21, 1976Date of Patent: September 13, 1977Assignee: Exxon Research and Engineering CompanyInventor: Irving Kuntz
-
Patent number: 4029871Abstract: A class of soluble polymers of high molecular weight is disclosed whose members are: copolymers of polycyclic polyenes containing two conjugated double bonds which are members of the group consisting of a) polycyclic polyenes having an endomethylenic system orthocondensed with another hydrocarbon ring wherein the two common carbon atoms form a part of a conjugated diene system whose double bonds are located inside the non-endomethylenic ring, b) polyenes presenting an alkylidene group conjugated with a double bond of a ring which forms a part of an endocyclic system, and c) orthocondensed polycyclic polyenes substituted with an alkylidene type ring whose double bond is conjugated with a double bond of one of the cycles; and homopolymers of at least one of said polycyclic polyenes with at least one other conjugated diene.Type: GrantFiled: June 26, 1975Date of Patent: June 14, 1977Assignees: Snam Progetti, S.p.A., Brevetti e LicenzeInventors: Aldo Priola, Arnaldo Roggero, Sebastiano Cesca
-
Patent number: 4029875Abstract: Radical polymerization of ethylene in the presence of an initiator and up to 500 ppm of a cyclic olefin having from 5 to 12 carbon atoms and a ring of 5 to 9 members or styrene and its alkyl homologues.Type: GrantFiled: April 21, 1976Date of Patent: June 14, 1977Assignee: Societe Chimique des Charbonnages-CdF ChimieInventors: Pierre Gloriod, Jean Pierre Machon
-
Patent number: 4028316Abstract: An acrylic copolymer composition capable of being vulcanized with sulfur comprising the radical polymerization product of (1) a monomer mixture comprising an acrylic acid ester and ethylidene norbornene, (2) a monomer mixture comprising an acrylic acid ester, ethylidene norbornene and acrylonitrile, (3) a monomer mixture comprising an acrylic acid ester and vinyl norbornene, or (4) a monomer mixture comprising an acrylic acid ester, vinyl norbornene and at least one unsaturated compound selected from the group consisting of monovinyl compounds, monovinylidene compounds and monovinylene compounds.Type: GrantFiled: February 17, 1976Date of Patent: June 7, 1977Assignee: Mitsubishi Belting LimitedInventors: Tadao Matsuo, Minoru Miura, Satoshi Mashimo, Masanori Kakei, Kyoichi Mishima
-
Patent number: 4025497Abstract: There is disclosed a new class of substantially linear, amorphous, unsaturated, vulcanizable, high molecular weight copolymers of ethylene, a higher alpha-olefin of the formula CH.sub.2 = CHR in which R is an alkyl group containing from 1 to 6 carbon atoms and certain specific omega-alkenyl derivatives of norbornene in which the double bond of the alkenyl group is non-vinyl and occurs at either end of said group. A process for the preparation of the new copolymers by the use of catalysts acting according to an anionic coordinate mechanism is also disclosed.Type: GrantFiled: September 18, 1970Date of Patent: May 24, 1977Assignee: Montecatini Edison S.p.A.Inventors: Giulio Natta, Alberto Valvassori, Guido Sartori, Nazzareno Cameli
-
Patent number: 4021510Abstract: A resin composition is prepared from 5 to 95 parts by weight of a polymer prepared by ring-opening polymerization of cyano-substituted norbornene derivatives having at least one nitrile group or substituents including nitrile group and 95 to 5 parts by weight of (a) homopolymer or copolymer of vinyl chloride, (b) styrene homopolymer or vinyl copolymer containing at least 50 per cent by weight of at least one vinyl compound selected from the group consisting of styrene, acrylonitrile and methyl methacrylate, (c) said homopolymer or copolymer compounded with elastomer, or (d) graft copolymer obtained by grafting at least one of said vinyl compounds to said elastomer.Type: GrantFiled: March 19, 1974Date of Patent: May 3, 1977Assignee: Showa Denko Kabushiki KaishaInventors: Takashi Ueshima, Yasuzi Tanaka, Toshiro Yokoyama, Shoichi Kobayashi
-
Patent number: 4017669Abstract: Addition terpolymers of ethylene with an .alpha.-olefin and an unsaturated, functionally substituted monomer. Addition tetrapolymers of ethylene with an .alpha.-olefin having 3-18 carbon atoms, a nonconjugated diene having only one polymerizable double bond, and an unsaturated, functionally substituted monomer. A process for preparing copolymers of ethylene with an unsaturated functionally substituted monomer, and optionally also with at least one of the following: an .alpha.-olefin having 3-18 carbon atoms and a nonconjugated diene having only one polymerizable double bond; wherein the monomers are contacted in the presence of a vanadium compound soluble in hydrocarbons and chlorinated hydrocarbons, in which vanadium is in the oxidation state of at least +3, an organoaluminum compound, and an organic compound having at least one carbon atom substituted by three halogen atoms which can be chlorine or bromine.Type: GrantFiled: April 27, 1973Date of Patent: April 12, 1977Assignee: E. I. Du Pont de Nemours and CompanyInventors: John Wilfred Collette, Rolland Shin-Yuan Ro, Fred Max Sonnenberg
-
Patent number: 4016342Abstract: In a process for producing elastomers of ethylene and C.sub.3 to C.sub.10 alpha-olefins, improved products, higher catalyst efficiency, improved monomer conversion and control of molecular weight distribution are obtained by the use of staged reactors wherein the monomer feed is divided between the reactors, the catalyst feed is added to the first reactor and the cocatalyst feed is divided with a different cocatalyst supplied to the second reactor. The process is applicable in either a divided single reactor or in the use of multiple reactors.Type: GrantFiled: January 7, 1976Date of Patent: April 5, 1977Assignee: Exxon Research and Engineering CompanyInventor: Joseph Wagensommer
-
Patent number: 4011387Abstract: An adhesive resin comprising the polymer of dimethyl-di-(cyclohexen-3)-yl-methane as well as a copolymer of this compound with at least one mono-or di- ethylenically unsaturated hydrocarbon or chlorinated hydrocarbon, said hydrocarbon having 4 to 12 carbon atoms. A method of making these resins and a method of causing adhesion using such resins are also disclosed, as well as compositions including this resin.Type: GrantFiled: July 23, 1975Date of Patent: March 8, 1977Assignee: Beiersdorf AktiengesellschaftInventors: Julius Curts, Hanns Pietsch
-
Patent number: 4007043Abstract: Method for achieving free radical initiated copolymerization of an addition monomer having pendant therefrom a strong donor group with an addition monomer having pendant therefrom a strong acceptor group. Copolymers prepared according to this method can be represented by the following formula: ##STR1## wherein R is hydrogen or methyl;R' is hydrogen or methyl;R" is hydrogen or methyl;R'" is selected from the group consisting of --NO.sub.2, halogen, --CN and --CF.sub.3 ;X and Y are independently selected from the group consisting of hydrogen, chlorine, bromine, alkyl of 1 - 4 carbon atoms and phenyl;a and b can range from 0 - 4; andn and m can range from about 5 to about 95 percent.The polymeric compositions prepared according to this method are suitable for use in electrophotography either alone as the primary photoresponsive entity or in combination with other photoconductive materials.Type: GrantFiled: July 16, 1975Date of Patent: February 8, 1977Assignee: Xerox CorporationInventors: Milan Stolka, Sam R. Turner
-
Patent number: 3978029Abstract: Photoconductive composition comprising a carbazole functional polymer wherein at least 0.1 percent of said carbazole function groups have the following structural formula ##SPC1##wherein X is a structural unit of said polymer; R is hydrogen; an aliphatic hydrocarbon radical having from 1 - 10 carbon atoms; phenyl; or substituted phenyl, said phenyl substituents being capable of contribution of electrons to relatively electron deficient centers with the structural unit.Materials of the above structural formula can be readily polymerized or copolymerized with other addition polymers. These polymer compositions are useful in preparation of photoconductive insulating layers for electrophotography.Type: GrantFiled: February 20, 1974Date of Patent: August 31, 1976Assignee: Xerox CorporationInventor: William W. Limburg
-
Patent number: 3976610Abstract: Acrylate rubbers having both halogen and carboxyl cure sites are vulcanized using an alkali metal salt of a carboxylic or organo-phosphoric acid and an amine-blocked isocyanate. The vulcanized compositions exhibit low press-cured and post-cured compression set.Type: GrantFiled: April 14, 1975Date of Patent: August 24, 1976Assignee: The B. F. Goodrich CompanyInventors: Roger E. Morris, Harold Tucker
-
Patent number: 3959238Abstract: This invention discloses solid, homogeneous and essentially random terpolymers of styrene, isobutylene and beta-pinene having a number average molecular weight of from about 1500 to about 7000, a styrene content of from about 40 to about 60 weight percent, an isobutylene content of from about 10 to about 40 weight percent, a beta-pinene content of from about 10 to about 40 weight percent and a ring and ball softening point of from about 160.degree. to about 240.degree.F.Type: GrantFiled: April 14, 1975Date of Patent: May 25, 1976Assignee: Velsicol Chemical CorporationInventors: Takeo Hokama, Frank Scardiglia