Fluorine Containing Monomer Contains Nitrogen Atom Patents (Class 526/248)
-
Patent number: 5556929Abstract: An ocular lens material made of a copolymer obtained by polymerizing copolymerizable components comprising (A) a fluorine-containing di(meth)acrylate having urethane bonds, of the formula (I): ##STR1## wherein each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or a methyl group, each of R.sup.3 and R.sup.4 independently represents a C.sub.5-15 alkylene group, R.sup.5 represents a C.sub.1-20 alkylene group containing from 1 to 20 fluorine atoms, each of m and n independently represents an integer of from 1 to 5, and each of x and y independently represents 0 or 1, (B) a silicone-containing di(meth)acrylate having urethane bonds, of the formula (II): ##STR2## wherein each of R.sup.6 and R.sup.7 independently represents a hydrogen atom or a methyl group, each of R.sup.8 and R.sup.9 independently represents a C.sub.1-10 alkylene group or a C.sub.2-10 ether group, R.sup.Type: GrantFiled: January 2, 1996Date of Patent: September 17, 1996Assignees: Menicon Co., Ltd., Shin-Etsu Chemical Co., Ltd.Inventors: Yasuhiro Yokoyama, Yuriko Watanabe, Akinori Okumura, Shoji Ichinohe, Toshio Yamazaki
-
Patent number: 5530067Abstract: Electrostatic toners comprising polymeric dyes comprising of (1) discrete segments that are dispersible in highly fluorinated solvents and (2) discrete color-imparting segments. These toners can be prepared by a means of a polymerization process, wherein macromers containing highly fluorinated dispersible segments are grafted onto a polymer having chromophores attached thereto.Type: GrantFiled: May 17, 1994Date of Patent: June 25, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: S. Prabhakara Rao, Terrance P. Smith
-
Patent number: 5498639Abstract: Polymeric compositions are derived from copolymers of .alpha.,.beta., .beta.-trifluorostyrene with a variety of substituted .alpha.,.beta.,.beta.-trifluorostyrenes. These compositions are suitable for use as membranes, particularly as ion-exchange membranes, and most particularly as solid polymer electrolytes in electrochemical applications, such as, for example, electrochemical fuel cells.Type: GrantFiled: May 16, 1995Date of Patent: March 12, 1996Assignee: Ballard Power Systems Inc.Inventors: Jinzhu Wei, Charles Stone, Alfred E. Steck
-
Patent number: 5468812Abstract: Polymerizable, organic-soluble, oligomeric fluorochemical surfactant compositions having at least two pendent fluoroaliphatic groups, at least two organic-solubilizing groups, and a pendent polymerizable olefinic group. Also a method of preparing such surfactant compositions. The compositions reduce the surface energy of acrylate-containing mixtures and acrylate-based pressure-sensitive adhesives. They can be used in preparing acrylate-based pressure-sensitive adhesives that coat well due to the presence of the surfactant and maintain adhesive performance upon aging.Type: GrantFiled: September 26, 1994Date of Patent: November 21, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Imelda A. Muggli, Roger R. Alm
-
Patent number: 5444136Abstract: Nonlinearly optically active monomer species comprising at least two carbon-carbon activated double bonds, i.e., the polymerization of which is facilitated by the presence of an electron attracting function, and a non-centrosymmetric system of pi (.pi.Type: GrantFiled: March 15, 1994Date of Patent: August 22, 1995Assignee: Flamel TechnologiesInventors: Yves Camberlin, Gerard Mignani, Remi Meyrueix, Gilles Tapolsky
-
Patent number: 5426164Abstract: A polymer has at least one photoactive site and more than one perfluorocyclobutane group. New monomers containing photoactive sites or photoactive precursors and at least one perfluorovinyl group are useful for making such polymers. Processes of making such polymers and the monomers from which they are made are disclosed. The polymers are useful in coatings, photoresists, and the like.Type: GrantFiled: December 24, 1992Date of Patent: June 20, 1995Assignee: The Dow Chemical CompanyInventors: David A. Babb, W. Frank Richey, Katherine S. Clement, Eric S. Moyer, Marius W. Sorenson
-
Patent number: 5422411Abstract: Polymeric compositions are derived from copolymers of .alpha.,.beta.,.beta.-trifluorostyrene with a variety of substituted .alpha.,.beta.,.beta.-trifluorostyrenes. These compositions are suitable for use as membranes, particularly as ion-exchange membranes, and most particularly as solid polymer electrolytes in electrochemical applications, such as, for example, electrochemical fuel cells.Type: GrantFiled: September 21, 1993Date of Patent: June 6, 1995Assignee: Ballard Power Systems Inc.Inventors: Jinzhu Wei, Charles Stone, Alfred E. Steck
-
Patent number: 5418277Abstract: An aqueous dye or pigment ink particularly adapted for ink jet printing containing a fluorinated block copolymer prepared from a fluorinated oxazoline or oxazine. Resulting inks exhibit high print quality over a range of papers.Type: GrantFiled: April 26, 1994Date of Patent: May 23, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Sheau-Hwa Ma, Jose M. Rodriguez-Parada
-
Patent number: 5408010Abstract: Fluoroalkyl-substituted maleic anhydride polymers, substrates treated therewith, and to novel processes for preparing and using the same. The polymers can be prepared by reacting: (1) terminally unsaturated alkenylamines or alcohols (e.g. allyl amine or alcohol, or diallyl amine) with maleic anhydride polymers, and (2) the resulting polymeric amides or esters with fluoroalkyl iodides in the presence of a free radical initiator. Dehydroiodination of the resulting product with base yields novel polymeric products which provide oil- and water-repellency as well as soil-resistance when applied to substrates, particularly nylon fibers.Type: GrantFiled: July 28, 1994Date of Patent: April 18, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: Donald D. May
-
Patent number: 5393803Abstract: A maleimide polymer comprises units derived from a maleimide derivative represented by the following general formula (I): ##STR1## where R.sup.1 is a hydrogen atom or a methyl group, and R.sup.2 is an alkyl, alkenyl or aryl group, each of which groups is substituted by at least one organosiloxane group or fluorine atom, or comprises a copolymer of (1) a maleimide derivative represented by the formula (I) but in which R.sup.2 may be hydrogen or any optionally substituted aliphatic hydrocarbon or aryl group with (2) an alkyl or fluoroalkyl methacrylate or an organosiloxy styrene- or organosiloxy-(meth)acrylic acid derivative.The polymer material may be formulated into contact lenses high in oxygen permeability and having good mechanical properties.Type: GrantFiled: March 12, 1993Date of Patent: February 28, 1995Inventors: Teiji Kawano, Mitsuru Yokota
-
Patent number: 5382639Abstract: Novel polymers are disclosed which can be used to prepare water-based compositions are disclosed having the capability of forming a uniform, low surface-energy, thin film on a substrate. Such compositions comprise a polymer having at least one fluoroaliphatic moiety and at least one anionic moiety, and a novel polymer having at least one fluoroaliphatic moiety and at least one oxazoline moiety.Type: GrantFiled: December 17, 1993Date of Patent: January 17, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: George G. I. Moore, Dong-Wei Zhu
-
Patent number: 5374701Abstract: Diarylacetylenes and diarylenamines are synthesized from a Schiff's base and an N-arylmethylheterocycle; these compounds are useful as intermediates for a variety of polymers; in particular an efficient process is provided for producing diaryl acetylenes useful in the efficient production of acetylene group-containing polymers which can be cross-linked to produce high strength polymers free of structural defects such as conventionally arise as a result of liberation of volatiles during the cross-linking.Type: GrantFiled: May 4, 1993Date of Patent: December 20, 1994Inventors: Allan S. Hay, Martino Paventi
-
Patent number: 5364917Abstract: A process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having aromatic polyester, aromatic polyamide, or polyimide groups or combination thereof, at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to sufficient heat and for a sufficient time that a polymer containing perfluorocyclobutane rings is formed. Chain extending oligomers of polymers having poor processing characteristics by this process results in polymers which are more easily processed. For instance, perfluorocyclobutane groups formed in an extruder to chain lengthen polyimide oligomers, in effect, render polyimides extrudable. The polymer formed by the method preferably has polyimide groups. New monomers and polymers having imide and perfluorovinyl or perfluorocyclobutane structures, respectively, are prepared.Type: GrantFiled: December 1, 1993Date of Patent: November 15, 1994Assignee: The Dow Chemical CompanyInventors: David A. Babb, W. Frank Richey, Katherine S. Clement, Bobby R. Ezzell
-
Patent number: 5326670Abstract: A resist composition for forming a upper resist layer and a process for forming a pattern thereby are disclosed. This resist comprises an azide compound and a polyacrylic copolymer of the following formula (1): ##STR1## wherein, R.sub.1 means CH.sub.3, CF.sub.3, CN, CH.sub.2 OH, or CH.sub.2 CO.sub.2 R, wherein R means an alkyl having 1 to 5 carbon atomsR.sub.2 means a hydrocarbon radical having at least one Si,R.sub.3 means OH, O--C(CH.sub.3).sub.3, NH.sub.2 , or NHCH.sub.2 OH, and, a ratio of n to m is more than 0 and is 1 or less than 1.Whereby a finely-resolved resist pattern is obtained by a preset process for forming the resist pattern.Type: GrantFiled: June 7, 1991Date of Patent: July 5, 1994Assignee: Fujitsu LimitedInventors: Akiko Kotachi, Satoshi Takechi
-
Patent number: 5314975Abstract: The present invention provides novel fluorinated acrylamide silane monomers which are useful as adhesion promoting agents in optical fiber cladding compositions. Polymerization of the novel monomers, optionally in the presence compatible ethylenically-unsaturated monomers, provides homopolymers and copolymers which are useful as non-wetting agents.Type: GrantFiled: January 28, 1993Date of Patent: May 24, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Stefan A. Babirad, Dean M. Moren, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
-
Patent number: 5292924Abstract: .alpha.-Fluoro-substituted N-acryloylamino acid derivatives of the formula ##STR1## are used to make polymers optionally for chromatographic resolution of racemates into their enantiomers. The fluorine atom improves performance in many instances.Type: GrantFiled: November 13, 1992Date of Patent: March 8, 1994Assignee: Bayer AktiengesellschaftInventors: Rolf Grosser, Walter Lange, Bruno Bomer, Dieter Arlt, Dietmar Bielefeldt
-
Patent number: 5274008Abstract: When molding shaped articles such as contact lenses from monomeric mixtures containing silicone monomers and hydrophilic monomers, the wettability of the resulting article is improved by using a mold material produced from a resin comprising a copolymer of an alpha, beta, olefinically unsaturated mononitrile and at least one comonomer to enhance melt processability.Type: GrantFiled: January 14, 1993Date of Patent: December 28, 1993Assignee: Bausch & Lomb IncorporatedInventor: Yu-Chin Lai
-
Patent number: 5264511Abstract: Monomers, B-stage polymers, C-stage polymers, cured polymers and electricy conducting polymers of acetylene-terminated aromatic monomers containing three benzene rings separated by ethylene groups are disclosed. These new polymers can withstand aggressive environments and are particularly adapted for use in high temperature composites in addition to the utilization of their electrical conducting properties. Preparation of these materials is accomplished by melt polymerization and heat treatment at high temperatures.Type: GrantFiled: June 30, 1992Date of Patent: November 23, 1993Assignee: The United States of America as represented by the Secretary of the NavyInventor: Theordore R. Walton
-
Patent number: 5256731Abstract: Polymers based on ethylenically unsaturated monomers contain at least 0.1% by weight of monomer units comprising specific ethylenically unsaturated, fluorine-containing and polymerization-capable or copolymerization-capable urethane derivatives (see formula I).The process for the preparation of the polymers or copolymers from the monomers from which they are built up by free-radical initiated polymerization or copolymerization, preferably by a method of emulsion polymerization.The use of the polymers as a starting material for the production of films, sheets, fibers, adhesives, paints, compression-molding compositions and moldings, as a thickener in aqueous preparations, as an impregnant, binder or coating agent for various industrial or chemotechnological areas of application.Type: GrantFiled: February 25, 1991Date of Patent: October 26, 1993Assignee: Hoechst AGInventors: Hans-Ullrich Huth, Karl-Hans Angelmayer
-
Patent number: 5256747Abstract: Perfluoroelastomers characterized by low molecular weight and freedom form color-forming impurities can be prepared by pyrolysis techniques, and are useful in pellicle coatings and other optical applications.Type: GrantFiled: December 23, 1991Date of Patent: October 26, 1993Inventors: Leo Ojakaar, Anestis L. Logothetis
-
Patent number: 5247035Abstract: At least 95% tetrahydrofuran soluble polymers are obtainable by copolymerization of a monomer mixture ofA) from 1 to 99% by weight of at least one at least 98% pure monomer of the general formula ICH.sub.2 .dbd.C(E)CH.sub.2 --O--CH.sub.2 C(E').dbd.CH.sub.2 Iwhere E and E' have been selected from the group consisting of --COOR.sup.1, --COR.sup.1, --CONR.sup.2 R.sup.3 and --CN and R.sup.1, R.sup.2 and R.sup.3 are each defined as follows:R.sup.1 =H, alkyl, cycloalkyl, cycloalkylalkyl, wherein the cycloalkyl rings may be alkyl- or alkoxy-monosubstituted, -disubstituted or -trisubstituted, hydroxyalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, aryl, arylalkyl, wherein the aryl groups may carry up to three of the following groups: halogen, alkyl, alkoxy, carboxyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, nitrilo, nitro, amino, alkylamino, dialkylamino;R.sup.2, R.sup.Type: GrantFiled: January 19, 1993Date of Patent: September 21, 1993Assignee: BASF AktiengesellschaftInventors: Siegmund Besecke, Andreas Deckers, Harald Lauke
-
Patent number: 5247042Abstract: This invention provides novel side chain polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in all-optical and electrooptical light switch and light modulator devices.Type: GrantFiled: September 11, 1989Date of Patent: September 21, 1993Assignee: Hoechst Celanese Corp.Inventors: Diane E. Allen, Ronald N. DeMartino, Hyun-Nam Yoon
-
Patent number: 5225515Abstract: Polybenzazole polymers may contain perfluorocyclobutane rings to provide a flexible moiety which is stable at high temperatures.Type: GrantFiled: April 17, 1991Date of Patent: July 6, 1993Assignee: The Dow Chemical CompanyInventors: Zenon Lysenko, William J. Harris
-
Patent number: 5216097Abstract: The invention provides polymers or copolymers which are prepared by the polymerization of the reaction product of a diisocyanate with a perfluoro compound or an epichlorhydrinadduct thereof and (meth)acrylic esters of a three hydroxyl groups containing compound. Furthermore, the invention relates to fluoroacrylic monomers, a process for preparing the polymers or copolymers and a treatment agent comprising the polymers or copolymers of the invention and an environmentally acceptable solvent. Polymers and copolymers of the invention can be used for making textiles, papers, non-woven articles, leather, plastic, wood, metal, stone and cement water and oil repellent.Type: GrantFiled: April 21, 1992Date of Patent: June 1, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Kathy Allewaert, Dirk Coppens, Franceska Fieuws
-
Patent number: 5212269Abstract: Processible chromophoric polymers having nonlinear optical properties and wherein the chromophore is present in and is a part of the polymer backbone, including substantially all of the monomer or repeat units, with the dipole moments pointing in the same direction (head-to-tail) along the polymer backbone. Such polymers include phenylene, phenylene vinylene, stilbenylene, phenyl piperdine, and coumarin polymers.Type: GrantFiled: March 25, 1991Date of Patent: May 18, 1993Inventors: John Fischer, Ronald Henry, James Hoover, Geoffrey Lindsay, John Stenger-Smith, Andrew P. Chafin
-
Patent number: 5198513Abstract: A compound having at least one perfluorovinyl group and at least one functional group is suitable for reacting with and/or forming polymers. The compound is preferably of Formula I:(G)n-R-(X--CF.dbd.CF.sub.2).sub.mwherein R represents an optionally substituted hydrocarbyl group, X represents any group which links R and a perfluorovinyl group; n is the number of G groups, m is the number of (XCF.dbd.CF.sub.2) groups; and G represents any reactive functional group or a group convertible into a reactive functional groups.A process for preparing a compound of Formula I comprises the steps of:(a) preparing a 2-halotetrafluoro compound of the Formula III:(Q--CF.sub.2 --CF.sub.2 -X).sub.m -R-(G").sub.Type: GrantFiled: March 12, 1991Date of Patent: March 30, 1993Assignee: The Dow Chemical CompanyInventors: Katherine S. Clement, David A. Babb, Bobby R. Ezzell, W. Frank Richey
-
Patent number: 5187234Abstract: This invention provides novel vinyl polymers with pendant side chains which exhibit nonlinear optical response. The polymers have utility as a transparent optical media in optical devices.Type: GrantFiled: September 6, 1991Date of Patent: February 16, 1993Assignee: Hoechst Celanese Corp.Inventors: Thomas M. Leslie, Ching F. Shu, Karsten Blatter, Ronald DeMartino, Frank Battito
-
Patent number: 5187237Abstract: The epoxy resins according to the invention demonstrate the following structure: ##STR1## The cross-linked epoxy resins exhibit non-linear optical properties.Type: GrantFiled: September 17, 1991Date of Patent: February 16, 1993Assignee: Siemens AktiengesellschaftInventors: Jens Nordmann, Heinz Hacker
-
Patent number: 5177165Abstract: A new class of polymerizable surfactants, useful for modifying the surfaces of polymeric objects, which are described by the formula:DC[A.sub.x B.sub.y ]wherein A is at least one ethylenically unsaturated hydrophilic monomer, B is at least one ethylenically unsaturated hydrophobic monomer, C is a functional chain transfer agent, D is an ethylenically unsaturated end group, y is within the range from about 0.1 to about 0.9, and x+y=1. Also disclosed are random copolymer precursors of such polymerizable surfactants.Type: GrantFiled: December 11, 1991Date of Patent: January 5, 1993Assignee: Bausch & Lomb IncorporatedInventors: Paul L. Valint, Jr., Joseph A. McGee
-
Patent number: 5171803Abstract: In one embodiment this invention provides novel side chain copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in all-optical and electrooptical light switch and light modulator devices.Type: GrantFiled: May 24, 1991Date of Patent: December 15, 1992Assignee: Hoechst Celanese Corp.Inventors: Connie R. Walton, Brian B. Marr, Anthony J. East
-
Patent number: 5166283Abstract: A polymer having dihydropyridine rings or dihydrotriazine rings as main constitutional units, an ethynyl- or cyanato-terminated Schiff's compound which is a starting material for producing the polymer, and applications of the polymer.Type: GrantFiled: June 14, 1991Date of Patent: November 24, 1992Assignee: Hitachi Ltd.Inventors: Akio Nishikawa, Tohru Koyama, Hideki Asano, Toshikazu Narahara
-
Patent number: 5162468Abstract: Compounds have a structure represented by Formula I:CF.sub.2 .dbd.CF--X--R--(X--CF.dbd.CF.sub.2).sub.mwherein R represents an unsubstituted or inertly substituted hydrocarbyl group; each X is independently selected from the group consisting of groups having at least one non-carbon atom between R and --CF.dbd.CF.sub.2 ; and m is an integer of from 1 to about 3. Polymers formed from such compounds are also prepared. The compounds are preferably prepared by a method by a process comprising the steps of:(a) forming a salt having anion corresponding to a compound of Formula II:HX--R--(XH.sub.m);wherein X, R and m are as defined for Formula I:(b) reacting the salt with a 1,2-dihalo-1,1,2,2-tetrafluoroethane wherein the halo groups are iodine, bromine, chlorine or mixtures thereof, at least one halo group being bromine or iodine, to form a compound of Formula III:Z--CF.sub.2 CF.sub.2 --X--R--(X--CF.sub.2 CF.sub.2 --Z).sub.Type: GrantFiled: March 12, 1991Date of Patent: November 10, 1992Assignee: The Dow Chemical CompanyInventors: David A. Babb, Katherine S. Clement, Bobby R. Ezzell
-
Patent number: 5142010Abstract: An antimicrobial polymerizable compound and polymers resulting therefrom, the compound being ##STR1## wherein A is any polymerizable group; Q is phenylene; and R is --(CF.sub.2).sub.y CF.sub.3 wherein y=1-20, --(CH.sub.2).sub.x --O--C.sub.x H.sub.2x+1 wherein x=1-25, --(CH.sub.2 CH.sub.2 O).sub.n (CH.sub.2 CHCH.sub.3 O).sub.m (CH.sub.2 CH.sub.2 O).sub.p T wherein T=--H or any branched or unbranched C.sub.1-20 alkyl and n, m, and p=0-99 and m+n+p.gtoreq.1, --CHR'COOH wherein R' is H or any naturally occurring amino acid side chain, --(CH.sub.2).sub.x COOH, --(CH.sub.2).sub.x --(CH.sub.2 CH.sub.2 --O).sub.n --(CH.sub.2 CHCH.sub.3 O).sub.m (CH.sub.2 CH.sub.2 O).sub.p --CO--NH--CH.sub.2 --CH.dbd.CH.sub.2, --(CH.sub.2).sub.x --CO--NH--CH.sub.2 --CH.dbd.CH.sub.2, or --(CH.sub.2).sub.x --O--C--COH.dbd.CH.sub.2. The resulting polymers are useful in any variety of applications requiring an antimicrobial agent or an active sanitizer or disinfectant including caulks, mortars, films and coatings, adhesives and the like.Type: GrantFiled: May 10, 1990Date of Patent: August 25, 1992Assignee: H. B. Fuller Licensing & Financing Inc.Inventor: Alan D. Olstein
-
Patent number: 5100954Abstract: A soilresisting agent containing, as an effective component, a copolymer of (I) a fluorine-containing urethane compound containing a (meth)acryloyl group or an allyl group, and a polyfluoroalkyl group, obtained by reacting (a) a polyfunctional isocyanate having at least trifunctionality, (b) a hydroxy compound containing a (meth)acryloyl group or an allyl group, and (c) a hydroxy compound having a polyfluoroalkyl group, and (II) a copolymerizable compound other than said fluorine-containing urethane compound.Type: GrantFiled: August 15, 1990Date of Patent: March 31, 1992Assignee: Asahi Glass Company Ltd.Inventors: Katsuji Itoh, Gen-ichirou En-na, Sachio Otoshi
-
Patent number: 5098971Abstract: A fluorine-containing thermosetting resin having a three-dimensional crosslinking structure is obtained by polymerizing a bismaleimide compound having the formula, ##STR1## wherein Rf is fluorine, CF.sub.3, C.sub.2 F.sub.5 or C.sub.3 F.sub.7. The resin is excellent in moldability, thermal resistance and electric properties, has a low dielectric constant, is hence suitable as a molding material and can be used for molding materials, wiring boards, layer insulation films of LSI, etc.Type: GrantFiled: September 28, 1990Date of Patent: March 24, 1992Assignees: Hitachi, Ltd., Central Glass, Co.Inventors: Akira Nagai, Shin Nishimura, Akio Takahashi, Masamichi Maruta, Akihiro Fukui
-
Patent number: 5085975Abstract: Polymerizable compounds comprising perfluoroalkyl groups, reproduction layers containing these compounds, and use of the reproduction layers for waterless offset printing. The novel polymerizable compounds comprise at least two acryloyl or methacryloyl groups and at least one perfluoroalkyl group which is linked to the molecule through a functional group, in particular, an ester or amide function. The compounds can be prepared, for example, from hydroxyl group-containing acrylates or methacrylates and perfluoroalkyl group-containing carboxylic acid chlorides, in the presence of an amine or from perfluoroalkyl group-containing carboxylic acid derivatives and reactive acryloyloxy or methacryloyloxy compounds. Oligomeric compounds can additionally be synthesized from the above-mentioned compounds by linking, for example, with diisocyanates.Type: GrantFiled: October 23, 1989Date of Patent: February 4, 1992Assignee: Hoechst AktiengesellschaftInventor: Werner H. Mueller
-
Patent number: 5084498Abstract: A copolymer of an unsaturated fluoro compound with a vinyl ether and, optionally, with at least one additional ethylenically unsaturated monomer can be stabilized against gelling by the addition, either to the copolymerization reaction or to the copolymer in solution or in aqueous dispersion, of a 2,2-unsubstituted alicyclic 1,3-diketone in the presence of the enolate ion of said ketone, which enolate may be formed in situ. Solutions and dispersions of such copolymers are very useful in hard, weather-resistant finishes, for example, those used for bridge ironwork and architectural maintenance and in automotive applications.Type: GrantFiled: October 17, 1990Date of Patent: January 28, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Norman M. van Gulick
-
Patent number: 5081198Abstract: A tough, high performance polyimide is provided by reacting a triple bond conjugated with an aromatic ring in a bisethynyl compound with the active double bond in a compound containing a double bond activated toward the formation of a Diels-Adler type adduct, especially a bismaleimide, a biscitraconimide, or a benzoquinone, or mixtures thereof. Addition curing of this product produces a highly linear polymeric structure and heat treating the highly linear polymeric structure produces a thermally-stable aromatic addition-type thermoplastic polyimide, which finds utility in the preparation of molding compounds, adhesive compositions, and polymer matrix composites.Type: GrantFiled: November 13, 1989Date of Patent: January 14, 1992Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Ruth H. Pater
-
Patent number: 5079319Abstract: Vinyl unsaturated copolymers are described which are obtained in a two-step process and which consist of monomeric units A, B, C, D and E, copolymerized in a first step, and in a second step reacted with a reactive vinyl monomer M.sub.v, and in which A is a siloxane or fluorine containing vinyl monomer, 30-70% by weight; B is NN-dimethylacrylamide or N-vinylpyrrolidone, 30-70% by weight; C is an active hydrogen containing vinyl monomer, 0.5-25% by weight; D are other copolymerizable comonomers, 0-30% by weight, and E is a chain transfer agent, 0-10 mol percent. M.sub.v is a vinyl unsaturated isocyanate.These vinyl unsaturated polymers are useful, either by themselves or in combination with other copolymerizable vinyl monomers, as heat or UV-curable coatings or glass, plastic, wood, paper, textiles, metal or ceramics, said coatings possessing low surface energies and low refractive indices.Type: GrantFiled: February 13, 1991Date of Patent: January 7, 1992Assignee: Ciba-Geigy CorporationInventor: Karl F. Mueller
-
Patent number: 5066746Abstract: The present invention is a process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to sufficient heat and for a sufficient time that a polymer containing perfluorocyclobutane rings is formed wherein at least about 0.05 mole percent of the monomer, have at least 3 dimerizable perfluorovinyl groups and polymers prepared thereby.Type: GrantFiled: June 7, 1990Date of Patent: November 19, 1991Assignee: The Dow Chemical CompanyInventors: Katherine S. Clement, David A. Babb, Bobby R. Ezzell
-
Patent number: 5037917Abstract: A process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to sufficient heat and for a sufficient time that a polymer containing perfluorocyclobutane rings is formed. The invention includes polymers having a backbone comprising hydrocarbyl groups, perfluorocyclobutane rings and non-carbon atoms and polymers of at least 10,000 molecular weight having repeating units [O-(CFR.sub.f).sub.n -O-perfluorocyclobutane].Type: GrantFiled: June 9, 1989Date of Patent: August 6, 1991Assignee: The Dow Chemical CompanyInventors: David A. Babb, Katherine S. Clement, W. Frank Richey, Bobby R. Ezzell
-
Patent number: 5037918Abstract: A crosslinked polymer having perfluorocyclobutane rings is prepared in a process comprising the steps of: (a) contacting monomers having two dimerizable perfluorovinyl groups; (b) exposing the monomers to sufficient heat and for a sufficient time that a (linear) polymer containing perfluorocyclobutane rings is formed; and (c) exposing the polymer to sufficient crosslinking initiating means and for a sufficient time such that crosslinking occurs. Crosslinked polymers, so prepared are novel and have tensile strength and other physical proeprties enhanced over the properties of the corresponding linear polymer.Type: GrantFiled: December 15, 1989Date of Patent: August 6, 1991Assignee: The Dow Chemical CompanyInventor: David A. Babb
-
Patent number: 5006624Abstract: Water-soluble of water-dispersible, crosslinkable polymeric surfactants having fluorocarbon and ionic moieties are disclosed. Such surfactants can be cured into tough, solvent resistant, low critical surface tension coatings useful for protective finishes on metal, plastics and fabrics.Type: GrantFiled: March 1, 1990Date of Patent: April 9, 1991Assignee: The Dow Chemical CompanyInventors: Donald L. Schmidt, Charles E. Coburn, Perry J. McCrackin
-
Patent number: 5001198Abstract: A novel fluorine-containing polymeric compound represented by the general formula--CH.sub.2 --CH[(CH.sub.2).sub.a --NH.sub.2 ]}.sub.m-n--CH.sub.2 --CH[(CH.sub.2).sub.a --NH--CO--NH--CH.sub.2).sub.a Rf]}.sub.n,in which Rf is a perfluoroalkyl group having 6 to 15 carbon atoms, m is a positive integer in the range from 10 to 1500, n is a positive integer smaller than 0.7 m and a is 0 or 1, is prepared by the reaction of, when a is 0, a polyvinylamine of the formula --CH.sub.2 --CHNH.sub.2 ].sub.m, with an alkyl perfluoroalkanoate of the formula Rf--CO--OR, in which R is an alkyl group having 1 to 5 carbon atoms, or, when a is 1, a polyallylamine of the formula --CH.sub.2 --CH(CH.sub.2 --NH.sub.2)].sub.m, with a perfluoroalkylmethyl isocyanate of the formula RfCH.sub.2 --NCO. Despite the high fluorine content, the polymer is soluble in at least one kind of organic solvents so that Langmuir-Blodgett's films can be prepared from a solution of the polymer.Type: GrantFiled: February 6, 1989Date of Patent: March 19, 1991Assignee: Director General of Agency of Industrial Science and TechnologyInventors: Akira Sekiya, Masanori Tamura, Hiroyasu Ishida
-
Patent number: 4981936Abstract: Water soluble terpolymers based on (1) an acrylamide or acrylamide derivative, (2) a cationic vinyl monomer and (3) a hydrophilic vinyl monomer of the formula CH.sub.2 C(R)C(O)O(CH.sub.2 (CH.sub.2).sub.m O).sub.n E where R and E are each hydrogen or alkyl, m is an integer from 1 to 3 and n is an integer from 1 to 25 are useful flocculants.Type: GrantFiled: April 14, 1989Date of Patent: January 1, 1991Assignee: Polypure, Inc.Inventors: Frederick J. Good, Jr., Ronald E. Highsmith
-
Patent number: 4971424Abstract: Novel optical fiber cladding compositions containing fluorinated acrylamide monomers are described. The claddings are liquids at room temperature which possess excellent coating viscosities in the pre-polymerized state and are polymerized by actinic radiation.Type: GrantFiled: October 26, 1989Date of Patent: November 20, 1990Assignee: Minnesota Mining and Manufacturing Co.Inventors: Stefan A. Babirad, Steven M. Heilmann, Larry R. Krepski, Jerald K. Rasmussen
-
Patent number: 4900420Abstract: A process for preparing an anion exchange membrane, which comprises subjecting a carboxylate membrane made of a copolymer having repeating units of the formula: ##STR1## wherein X is F or CF.sub.3, l is an integer of from 0 to 5, m is 0 or 1, n is an integer of from 1 to 5, and p/q is from 4 to 16, and R is an alkyl group, to an acid or base treatment, and then introducing anion exchange groups thereinto.Type: GrantFiled: March 28, 1988Date of Patent: February 13, 1990Assignee: Tosoh CorporationInventors: Yasuhiro Kurauchi, Toru Seita, Kiyohide Matsui, Kikuo Sugimoto
-
Patent number: 4855376Abstract: This invention provides novel sidechain liquid crystalline polymers which exhibit nonlinear response, and which have utility as a transparent nonlinear optical component in optical light switch and light modulator devices.Type: GrantFiled: November 21, 1986Date of Patent: August 8, 1989Assignee: Hoechst Celanese Corp.Inventors: Ronald N. De Martino, Hyun-Nam Yoon, James B. Stamatoff
-
Patent number: 4853448Abstract: Copolymers comprising perfluoroalkyl groups, reproduction layers containing these copolymers and use thereof for waterless offset printing. The novel perfluoroalkyl group-containing copolymers are prepared from at least two different monomers, monomer (a) comprising acryloyl or methacryloyl groups and phenolic OH groups and monomer (b) comprising acryloyloxy, methacryloyloxy or vinyl groups and a perfluoroalkyl group. Monomer component (a) can, for example, be prepared from a hydroxybenzoic acid by esterification with a hydroxyalkyl-acrylate. The novel copolymers are, in particular, used as binders in radiation-sensitive reproduction layers which additionally contain at least one radiation-sensitive compound. Reproduction layers of this kind are used as radiation-sensitive coatings of support materials for printing plates used in waterless offset printing.Type: GrantFiled: July 30, 1987Date of Patent: August 1, 1989Assignee: Hoechst AktiengesellschaftInventors: Werner H. Muller, Arnold Schneller
-
Patent number: 4806608Abstract: Bis-maleimide compounds of the formula: ##STR1## where R' is an alkenylene or alkylene group; the R" groups are independently hydrocarbon or halohydrocarbon groups; and n is an integer, are hydrolytically stable compounds which may be thermally cured, or co-cured with other radically cureable monomers, to provide crosslinked polymer with good thermal properties. Compounds of the formula where n is above about 9 can be used as additives for radically cureable silicone formulations.Type: GrantFiled: March 16, 1987Date of Patent: February 21, 1989Assignee: Loctite CorporationInventor: Philip Klemarczyk