Nitrogen Of Ring Is Bonded Directly Or Indirectly To Extracyclic Ethylenic Moiety Patents (Class 526/263)
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Patent number: 4440919Abstract: Low N-vinyl lactam content copolymers are cross-linked with resonance free di(alkene tertiary amine) cyclic compounds to obtain biomedical devices, including soft contact lenses, which have good oxygen permeability and mechanical properties.Type: GrantFiled: November 12, 1981Date of Patent: April 3, 1984Assignee: Bausch & Lomb IncorporatedInventors: Richard C. Chromecek, Gary D. Friends, Lawrence Y. Wissman, Raymond A. Yourd, III
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Patent number: 4438278Abstract: Compounds useful in making crosslinkable polymers having the formula (I): ##STR1## wherein R is hydrogen or methyl; R.sup.1 is cyano or ##STR2## wherein R.sup.2 is alkyl; Z is --X--R.sup.3 --X--or ##STR3## wherein each --X-- is --O-- or --NR.sup.4 --, provided at least one --X-- is --NR.sup.4 -- wherein R.sup.4 is hydrogen or alkyl, R.sup.3 is divalent hydrocarbon and D.sub.1 and D.sub.2 together are the carbon atoms necessary to complete a 5 to 7 membered ring. These compounds can be homopolymerized or copolymerized with each other or with other polymerizable ethylenically unsaturated monomers to give crosslinkable polymers. Such polymers can be purified by conventional purification techniques such as dialysis, diafiltration, ultrafiltration without losing their capability of crosslinking. The resulting purified polymers are particularly useful in photographic materials as gelatin extenders, binders or polymeric color couplers.Type: GrantFiled: April 19, 1982Date of Patent: March 20, 1984Assignee: Eastman Kodak CompanyInventors: Ignazio S. Ponticello, Kenneth R. Hollister, Richard C. Tuites
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Patent number: 4436887Abstract: N-vinyl lactam monomers and comonomers are cross-linked with resonance free di(alkene tertiary amine) cyclic compounds to obtain biomedical devices, including contact lenses, which have high oxygen permeability and good mechanical properties.Type: GrantFiled: November 12, 1981Date of Patent: March 13, 1984Assignee: Bausch & Lomb IncorporatedInventors: Richard C. Chromecek, Gary D. Friends, Lawrence Y. Wissman, Raymond A. Yourd, III
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Patent number: 4429095Abstract: The invention provides new compounds which are cyclic alkylene ureas produced by the reaction of an alkylene urea selected from the group consisting of a mono-(alkylene ureido alkyl) urea, a bis-(alkylene ureido alkyl) urea, and mixtures thereof, with an unsaturated glycidyl ether or ester, such as allyl glycidyl ether. The new compounds are monomers which may be incorporated in aqueous emulsion polymer systems and are useful as wet adhesion promoters for latex paints.Type: GrantFiled: February 25, 1982Date of Patent: January 31, 1984Assignee: Alcolac Inc.Inventors: Joseph M. Sandri, John W. Calentine, Seymour M. Linder, Yves J. Billioux
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Patent number: 4429093Abstract: Acidic cyclic perfluoroaliphaticdisulfonimides, salts thereof, a process for making the same, curable compositions containing acidic cyclic perfluoroaliphaticdisulfonimides or salts thereof and cationically-sensitive monomers, and a process for using acidic cyclic perfluoroaliphaticdisulfonimides and salts thereof as catalysts for the cure of cationically-sensitive monomers.Type: GrantFiled: March 7, 1983Date of Patent: January 31, 1984Assignee: Minnesota Mining and Manufacturing Co.Inventor: Robert J. Koshar
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Patent number: 4426503Abstract: The invention provides new compounds which are cyclic alkylene ureas having hydroxyl and amine functionalities and which are produced by the reaction of an omega-amino alkyl alkylene urea, such as 2-aminoethyl ethylene urea, with an unsaturated glycidyl ether or ester, such as allyl glycidyl ether. The new compounds are monomers which may be incorporated in aqueous emulsion polymer systems and are useful as wet adhesion promoters for latex paints.Type: GrantFiled: December 14, 1981Date of Patent: January 17, 1984Assignee: Alcolac Inc.Inventors: Joseph M. Sandri, John W. Calentine, Seymour M. Linder, Yves J. Billioux
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Patent number: 4424312Abstract: Two new optically active pyrrolidinephosphine monomers prepared by the reaction of 2(S), 4(S)-4-diphenylphosphino-2-diphenylphosphinomethylpyrrolidine and 2(R), 4(R)-4-diphenylphosphino-2-diphenylphosphinomethylpyrrolidine with acryloyl-chloride to give N-acryloyl-2(S), 4(S)-4-diphenylphosphino-2-diphenylphosphinomethylpyrrolidine (1) and N-acryloyl-2(R), 4(R)-4-diphenylphosphino-2-diphenylphosphinomethylpyrrolidine (2). Copolymerization of 1 and 2 with hydrophilic comonomers and a divinyl monomer provided crosslinked insoluble polymers containing about 3-5% of 1 or 2 that would swell in polar solvents. Exchange of rhodium(I) onto the polymer gave catalysts which were active for the asymmetric hydrogenation of N-acyl-amino acids in high optical yields, the phosphine derived from the enantiomer of the naturally occurring 4-hydroxyproline giving S-amino acids.Type: GrantFiled: March 16, 1981Date of Patent: January 3, 1984Assignee: Polymer Sciences CorporationInventor: John K. Stille
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Patent number: 4424272Abstract: Polymeric mordants which are capable of converting to non-mordanting species in an alkaline environment are described. The mordants can be used in photographic elements to temporarily mordant a photographically useful dye material, such as a light-filter or anti-halation dye or a diffusion transfer image dye-providing material, and then release the dye material during processing of the element with an alkaline processing composition.Type: GrantFiled: August 3, 1981Date of Patent: January 3, 1984Assignee: Polaroid CorporationInventor: Lloyd D. Taylor
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Patent number: 4423198Abstract: The preparation of synthetic rubbers characterized by high green strength and tack in which a polymerizable unsaturated tertiary amine and a polymerizable cross linking agent in the form of an organic compound containing active halogen groups are copolymerized with the rubber forming monomers.Type: GrantFiled: September 24, 1982Date of Patent: December 27, 1983Assignee: Copolymer Rubber & Chemical CorporationInventor: Tom Tsai
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Patent number: 4421915Abstract: Compounds useful in making crosslinkable polymers having the formula (I): ##STR1## wherein R is hydrogen or methyl; R.sup.1 is cyano or ##STR2## wherein R.sup.2 is alkyl; Z is --X--R.sup.3 --X-- or ##STR3## wherein each --X-- is --O-- or --NR.sup.4 --, provided at least one --X-- is --NR.sup.4 -- wherein R.sup.4 is hydrogen or alkyl R.sup.3 is divalent hydrocarbon and D.sub.1 and D.sub.2 together are the carbon atoms necessary to complete a 5 to 7 membered ring. These compounds can be homopolymerized or copolymerized with each other or with other polymerizable ethylenically unsaturated monomers to give crosslinkable polymers. Such polymers can be purified by conventional purification techniques such as dialysis, diafiltration, ultrafiltration without losing their capability of crosslinking. The resulting purified polymers are particularly useful in photographic materials as gelatin extenders, binders or polymeric color couplers.Type: GrantFiled: April 19, 1982Date of Patent: December 20, 1983Assignee: Eastman Kodak CompanyInventors: Ignazio S. Ponticello, Kenneth R. Hollister, Richard C. Tuites
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Patent number: 4418187Abstract: A process for the preparation of electrically conductive polymers by polymerizing acenaphthylene, N-vinyl-heterocyclics, eg. N-vinylcarbazole or N-vinylpyridine, or N,N-divinylaniline at from -80.degree. to +100.degree. C. in the presence of a cationtic catalyst, wherein from 1 to 50 percent by weight of an oxidizing Lewis acid, preferably FeCl.sub.3, FeBr.sub.3, SbCl.sub.5, SbF.sub.5, AsF.sub.5 or CF.sub.3 -SO.sub.3 H, or a combination of AlCl.sub.3 or TiCl.sub.4 with the said compounds or with CrO.sub.3 or OsO.sub.4 is used as the catalyst. In a preferred embodiment of the process, thin films of the monomers to be polymerized, applied to glass or to a polymeric base, preferably to a plastic film, are treated with gaseous SbCl.sub.5, SbF.sub.5 or AsF.sub.5.Type: GrantFiled: April 15, 1981Date of Patent: November 29, 1983Assignee: BASF AktiengesellschaftInventors: Volker Muench, Herbert Naarmann, Klaus Penzien
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Patent number: 4413096Abstract: .alpha.-Olefin copolymers having recurring structural units of the formula ##STR1## where preferably T is hydrogen, L.sub.1 is hydrogen, L.sub.2 is COOL.sub.3, L.sub.3 is lower alkyl, E is --COO--, G is a hindered amine moiety, a/a+b+c=0.50 to 0.99, b/a+b+c=0 to 0.49 and c/a+b+c=0.01 to 0.50, are useful as light stabilizers for polymeric substrates, particularly polyolefins.Type: GrantFiled: January 26, 1982Date of Patent: November 1, 1983Assignee: Ciba-Geigy CorporationInventors: Frank T. Fu, Roland A. E. Winter
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Patent number: 4402936Abstract: A preshampoo-type, hair-treating composition comprising a polymer having a cyclic cationic group, and optionally containing a peptide having a molecular weight of 300 to 10,000.Type: GrantFiled: February 17, 1981Date of Patent: September 6, 1983Assignee: Kao Soap Co., Ltd.Inventors: Takeo Okumura, Hiroshi Ando
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Patent number: 4401629Abstract: A polymeric ion exchange resin of the cross-linked type in which the active groups may be constituted either wholly or in part by an imidazole group which is, in turn, attached directly to a cross-linked, polymerized vinyl backbone. The optional substituents on the imidazole ring include optionally substituted pyridyl, imidazolyl or amino groups which can be substantially known type. A method of preparation of such resins includes the provision of at least the imidazole ring on the vinyl monomer before polymerization thereof. The active groups may be added or modified after polymerization with a cross-linking agent.Type: GrantFiled: March 10, 1981Date of Patent: August 30, 1983Assignee: National Institute for MetallurgyInventors: Robert D. Hancock, Brian R. Green
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Patent number: 4386192Abstract: Process for the preparation of copolymers of definite specific viscosities from hydantoin vinyl ethers of the formula I and olefinically unsaturated compounds by free-radical polymerization of the monomers in a solvent mixture consisting of cyclohexane and toluene, it being possible to vary the specific viscosity of the copolymers within wide limits by altering the ratio of the two solvents. The meaning of the individual symbols can be seen in patent claim 1.Type: GrantFiled: February 10, 1982Date of Patent: May 31, 1983Assignee: Ciba-Geigy CorporationInventors: Sameer H. Eldin, Peter Grieshaber
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Patent number: 4383926Abstract: This invention relates to N,N-diallyl-3-hydroxy azetidinium salts, homo- and co-polymers thereof; and the preparation thereof. This invention also relates to the use of the above polymers as demulsifiers.Type: GrantFiled: January 15, 1982Date of Patent: May 17, 1983Assignee: Petrolite CorporationInventors: Rudolf S. Buriks, Eva G. Lovett
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Patent number: 4355147Abstract: Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with polycyclic modulus modifiers and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.Type: GrantFiled: February 26, 1981Date of Patent: October 19, 1982Assignee: Bausch & Lomb IncorporatedInventors: William G. Deichert, Gary D. Friends, John B. Melpolder, Joon S. Park
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Patent number: 4355167Abstract: This invention is directed to telomeric quaternary salt compositions of the formula[A.sub.x B.sub.y ].sub.Zwherein A is a segment selected from vinyl monomers, B is a quaternary salt segment, x and y are numbers representing mole fractions of A and B, the sum of x and y being equal to 1, and Z represents the degree of polymerization, wherein there results a telomeric quaternary salt having a number average molecular weight of from about 1,000 to about 10,000.Type: GrantFiled: May 1, 1981Date of Patent: October 19, 1982Assignee: Xerox CorporationInventor: Roger N. Ciccarelli
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Patent number: 4349651Abstract: A water soluble addition copolymer is formed by reaction admixing a monomer having a pendant vinyl group attached to at least one ring structure selected from the group consisting of nitrogen containing heterocyclic ring structures and aromatic ring structures and their mixtures, and a monomer selected from the group consisting of maleic anhydride, fumaronitrile, tetracyanoethylene, maleimide and their mixtures, where such addition copolymer can be used alone, as curable an insulating coating composition, or can be added to a resin, to form a curable resinous insulating coating composition.Type: GrantFiled: August 1, 1980Date of Patent: September 14, 1982Assignee: Westinghouse Electric Corp.Inventor: James D. B. Smith
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Patent number: 4346231Abstract: Compounds useful in making crosslinkable polymers having the formula (I): ##STR1## wherein R is hydrogen or methyl; R.sup.1 is cyano or ##STR2## wherein R.sup.2 is alkyl; Z is --X--R.sup.3 --X-- or ##STR3## wherein each --X-- is --O-- or --NR.sup.4 --, provided at least one --X-- is --NR.sup.4 -- wherein R.sup.4 is hydrogen or alkyl, R.sup.3 is divalent hydrocarbon and D.sub.1 and D.sub.2 together are the carbon atoms necessary to complete a 5 to 7 membered ring. These compounds can be homopolymerized or copolymerized with each other or with other polymerizable ethylenically unsaturated monomers to give crosslinkable polymers. Such polymers can be purified by conventional purification techniques such as dialysis, diafiltration, ultrafiltration without losing their capability of crosslinking. The resulting purified polymers are particularly useful in photographic materials as gelatin extenders, binders or polymeric color couplers.Type: GrantFiled: June 9, 1980Date of Patent: August 24, 1982Inventors: Ignazio S. Ponticello, Kenneth R. Hollister, Richard C. Tuites
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Patent number: 4341887Abstract: This invention relates to N,N-diallyl-3-hydroxy azetidinium salts, homo- and co-polymers thereof; and the preparation thereof. This invention also relates to the use of the above polymers as demulsifiers.Type: GrantFiled: March 7, 1980Date of Patent: July 27, 1982Assignee: Petrolite CorporationInventors: Rudolf S. Buriks, Eva G. Lovett
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Patent number: 4322489Abstract: Copolymeric mordant materials containing recurring units according to the following formula are disclosed: ##STR1## In such copolymers, each of R.sup.1, R.sup.2 and R.sup.3 can independently be alkyl; substituted alkyl; cycloalkyl; aryl; aralkyl; alkaryl; or at least two of R.sup.1, R.sup.2 and R.sup.3, together with the quaternary nitrogen atom to which they are bonded, can complete a saturated or unsaturated, substituted or unsubstituted nitrogen-containing heterocyclic ring; and X is an anion. The molar ratio of a:b can range from about 0.1:1 to about 10:1, e.g., about 0.3:1 to about 3:1.The copolymeric mordant materials can be utilized as image-receiving layers and in photographic products and processes of the diffusion transfer type. The mordants are especially adapted to the production of dye images free of objectionable haze, yellowing or related image defects.Type: GrantFiled: April 22, 1980Date of Patent: March 30, 1982Assignee: Polaroid CorporationInventors: Edwin H. Land, Irena Y. Bronstein-Bonte, Lloyd D. Taylor
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Patent number: 4321198Abstract: Novel compositions comprising acetylenic polyhemi-amic acid compositions and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide acetylenic amide groups having terminal .dbd.C.tbd.CH groups as hemi-amic acid groups of their derivatives. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing acetylenic amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.Type: GrantFiled: January 25, 1980Date of Patent: March 23, 1982Assignee: Plastics Engineering CompanyInventors: Gaetano F. D'Alelio, Phillip A. Waitkus
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Patent number: 4316843Abstract: Novel compositions comprising unsaturated polyimide-polyamides and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.Type: GrantFiled: January 25, 1980Date of Patent: February 23, 1982Assignee: Plastics Engineering CompanyInventors: Phillip A. Waitkus, Gaetano F. D'Alelio
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Patent number: 4316845Abstract: Novel compositions comprising acetylenic polyimide-polyamides and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide acetylenic amide groups having terminal --C.dbd.CH groups. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing acetylenic amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.Type: GrantFiled: January 25, 1980Date of Patent: February 23, 1982Assignee: Plastics Engineering CompanyInventors: Gaetano F. D'Alelio, Phillip A. Waitkus
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Patent number: 4316844Abstract: Novel compositions comprising unsaturated polyhemi-amic acid compositions and processes for their preparation are disclosed herein. These new compositions are primarily derivatives of anhydride-terminated aromatic polyimides from which they are prepared by amidation to provide unsaturated amide groups having terminal --CH.dbd.CH.sub.2 groups as hemi-amic acid groups or their derivatives. These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation thereby extending greatly the applications for which the aromatic polyimides can be employed. Also included are monomeric compounds containing unsaturated amide groups derived from monomeric tetracarboxylic dianhydrides. These are particularly useful as crosslinking agents.Type: GrantFiled: January 25, 1980Date of Patent: February 23, 1982Assignee: Plastics Engineering CompanyInventors: Phillip A. Waitkus, Gaetano F. D'Alelio
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Patent number: 4316952Abstract: Water-dispersible radiation curable polyesters having backbone hydantoin groups and alpha-methylene groups are disclosed. These polyesters are useful in the field of graphic arts.Type: GrantFiled: January 5, 1981Date of Patent: February 23, 1982Assignee: Minnesota Mining and Manufacturing CompanyInventor: Larry A. Wendling
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Patent number: 4309529Abstract: Water-dispersible radiation curable polyesters having backbone hydantoin groups and alpha-methylene groups are disclosed. These polyesters are useful in the field of graphic arts.Type: GrantFiled: May 12, 1980Date of Patent: January 5, 1982Assignee: Minnesota Mining and Manufacturing CompanyInventor: Larry A. Wendling
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Patent number: 4304705Abstract: A composition comprising a radiation-curable polymer, said polymer being crosslinkable and having pendant ethylenically unsaturated peptide groups is disclosed. Such polymers are useful in the field of graphic arts.Type: GrantFiled: January 2, 1980Date of Patent: December 8, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventors: Steven M. Heilmann, Frederick J. Palensky, Jerald K. Rasmussen
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Patent number: 4303760Abstract: An adhesive particularly suitable for use with polyvinyl fluoride sheets consisting predominantly of a copolymer of two vinyl compounds, compound (1) containing an aziridinyl group and the other vinyl compound (2) being capable of copolymerizing with the first named compound. The vinyl compound (1) has the following formula: ##STR1## where R.sub.1 is H or CH.sub.3, and R.sub.2 is an alkylene group containing from 1 to 8 carbon atoms. The adhesive may further contain an epoxy resin.Type: GrantFiled: July 28, 1980Date of Patent: December 1, 1981Assignee: Sony CorporationInventors: Makoto Nishimura, Yoshio Omori, Yoshio Fujiwara
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Patent number: 4299750Abstract: The products of the invention are partial acetylene end-capped oligomers which have the structure as shown in FIG. 3 in which terminal R" group is derived from a mixture consisting of about 14-40 mol % of an aromatic monoamine and the balance an acetylene substituted aromatic monoamine. The products are prepared from either of two (2) precursors. The first precursor has the structure shown in FIG. 2. The second precursor is a complex amine salt having the structure shown in FIG. 5.Type: GrantFiled: May 3, 1979Date of Patent: November 10, 1981Assignee: Gulf Oil CorporationInventors: Patricia A. Antonoplos, William J. Heilman
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Patent number: 4295948Abstract: A photohardenable adhesive comprising, as a photopolymerizable agent, acrylic acid.Type: GrantFiled: September 20, 1979Date of Patent: October 20, 1981Assignee: Battelle Memorial InstituteInventors: Alain Roman, Pierre Chevreux, Manfred Wust, Jacques Ehretsmann
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Patent number: 4296158Abstract: Information-carrying discs are comprised of a substrate having an information bearing layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic monomer.Type: GrantFiled: February 1, 1980Date of Patent: October 20, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventor: Terry W. Lewis
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Patent number: 4296225Abstract: This invention provides a process for preparing a stable aqueous emulsion composition which has excellent properties for application as a wet abrasion-resistant paper coating binder. The dispersed copolymer of the aqueous emulsion composition comprises a major proportion of vinyl acetate and a minor proportion of an amino-containing vinyl monomer. An important aspect of the emulsion preparation method is the addition of an aqueous solution of the amino-containing vinyl monomer as a separate feedstream, wherein the amine group in the said vinyl monomer is in the form of an amine-acid salt.Type: GrantFiled: January 4, 1980Date of Patent: October 20, 1981Assignee: Celanese CorporationInventor: David Rhum
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Patent number: 4294676Abstract: Aqueous solutions of olefinically unsaturated hydrophilic monomers are deoxygenated, advantageously pH adjusted, and prepared for direct photopolymerization by photoinitiator addition and countercurrent scrubbing with an inert gas in a contactor column, preferably a packed column.Type: GrantFiled: July 10, 1979Date of Patent: October 13, 1981Assignee: Rhone-Poulenc IndustriesInventors: Jean Boutin, Bernard Guenot, Bruno Jamet
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Patent number: 4294949Abstract: Homopolymeric acrylates and methacrylates which carry N-heterocyclic rings in a side position and their copolymers with compounds containing at least one polymerizable double bond are suitable as additives for plastics.Type: GrantFiled: January 25, 1980Date of Patent: October 13, 1981Assignee: Ciba-Geigy CorporationInventor: Friedrich Karrer
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Patent number: 4292237Abstract: An ultraviolet light sensitive polymer composition wherein resistance to photodegradation is enhanced by the inclusion therein of a stabilizer polymer having structural units corresponding to the following formula ##STR1## wherein R.sub.a, R.sub.b, and R.sub.Type: GrantFiled: November 14, 1977Date of Patent: September 29, 1981Assignee: The B. F. Goodrich CompanyInventors: Robert W. Layer, Pyong N. Son
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Patent number: 4276401Abstract: Copolymeric compounds which carry side N-heterocyclic rings and contain the recurring structural unit of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 are hydrogen and R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.4 is a N-heterocyclic substituent, their preparation and their use as light stabilizers and UV absorbers in organic material and also the organic material stabilized with the aid of these compounds.Type: GrantFiled: October 5, 1979Date of Patent: June 30, 1981Assignee: Ciba-Geigy CorporationInventor: Friedrich Karrer
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Patent number: 4262072Abstract: Abrasion resistant coatings are comprised of a crosslinked polymeric coating comprising at least 15% by weight of said polymer derived from a polyacrylate material having a heterocyclic nucleus therein.Type: GrantFiled: June 25, 1979Date of Patent: April 14, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry A. Wendling, John B. Covington
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Patent number: 4258165Abstract: A method for producing a vinyl chloride resin comprising 10 to 80% by weight of tetrahydrofuran-insoluble vinyl chloride resin gel fraction and the balance of tetrahydrofuran-soluble fraction with an average polymerization degree of 1,000 or more, characterized in that vinyl chloride alone or a mixture of a major amount of vinyl chloride and a minor amount of at least one monomer copolymerizable therewith is polymerized at a temperature of 0.degree. to 50.degree. C. in the presence of at least one polyfunctional monomer having two or more ethylenic double bonds in the molecule until the whole monomer or monomers in the polymerization system are substantially polymerized. The thus obtained vinyl chloride resin is excellent in processability and capable of forming a molded article having a small compression permanent set.Type: GrantFiled: April 12, 1979Date of Patent: March 24, 1981Assignees: Sumitomo Bakelite Company, Limited, Sumitomo Bakelite Company, LImitedInventors: Tomoyuki Emura, Yasuhiro Moriuchi
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Patent number: 4256867Abstract: The present invention relates to new hydantoin vinyl ethers of the formula ##STR1## in which R.sub.1 is hydrogen or an organic radical, R.sub.2 is an alkylene group, and R.sub.3 and R.sub.4 are preferably lower alkyl groups. These compounds are used for the preparation of homopolymers and copolymers, which can be used as thickeners, solubilizing agents, binders, thixotropic agents, complexing agents, stabilizers and so forth.Type: GrantFiled: September 4, 1979Date of Patent: March 17, 1981Assignee: Ciba-Geigy CorporationInventors: Sameer H. Eldin, Friedrich Stockinger
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Patent number: 4251417Abstract: The products of the invention are acetylene end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3',4,4' benzophenonetetracarboxylic acid, an aromatic triamine, and an acetylene-substituted aromatic monoamine. The structure of the polyimide oligomers is shown in FIG. 3.Type: GrantFiled: April 25, 1979Date of Patent: February 17, 1981Assignee: Gulf Oil CorporationInventors: Wai Y. Chow, William J. Heilman
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Patent number: 4251419Abstract: The products of the invention are vinyl end-capped oligomers which have the structure as shown in FIG. 3. The products are prepared from either of two (2) precursors. The first precursor is a compound which has the structure as shown in FIG. 2. The second precursor is a complex amine salt which has the structure shown in FIG. 5.Type: GrantFiled: April 5, 1979Date of Patent: February 17, 1981Assignee: Gulf Oil CorporationInventors: William J. Heilman, Daniel J. Hurley
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Patent number: 4251420Abstract: The products of the invention are end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic acid such as 3,3'4,4'-benzophenonetetracarboxylic acid, an aromatic triamine, and a 1-(aminoaryl)-3-hydroxy-3-methyl-1-butyne. The structure of the polyimide oligomers is shown in FIG. 3.Type: GrantFiled: April 23, 1979Date of Patent: February 17, 1981Assignee: Gulf Oil CorporationInventors: Patricia A. Antonoplos, William J. Heilman
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Patent number: 4251418Abstract: The products of the invention are acetylene end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic such as 3,3', 4,4'-benzophenonetetracarboxylic acid, an aromatic diamine, and a propargyl ester of an amino-substituted aromatic acid such as aminobenzoic acid. The structure of the polyimide oligomers is shown in FIG. 3.Type: GrantFiled: April 27, 1979Date of Patent: February 17, 1981Assignee: Gulf Oil CorporationInventors: Wai Y. Chow, S. Paul Thackaberry
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Patent number: 4247673Abstract: Compounds useful in making crosslinkable polymers having the formula (I): ##STR1## wherein R is hydrogen or methyl; R.sup.1 is cyano or ##STR2## wherein R.sup.2 is alkyl; Z is --X--R.sup.3 --X-- or ##STR3## wherein each --X-- is --O-- or --NR.sup.4 --, provided at least one --X-- is --NR.sup.4 -- wherein R.sup.4 is hydrogen or alkyl, R.sup.3 is divalent hydrocarbon and D.sub.1 and D.sub.2 together are the carbon atoms necessary to complete a 5 to 7 membered ring. These compounds can be homopolymerized or copolymerized with each other or with other polymerizable ethylenically unsaturated monomers to give crosslinkable polymers. Such polymers can be purified by conventional purification techniques such as dialysis, diafiltration, ultrafiltration without losing their capability of crosslinking. The resulting purified polymers are particularly useful in photographic materials as gelatin extenders, binders or polymeric color couplers.Type: GrantFiled: October 15, 1979Date of Patent: January 27, 1981Assignee: Eastman Kodak CompanyInventors: Ignazio S. Ponticello, Kenneth R. Hollister, Richard C. Tuites
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Patent number: 4243789Abstract: Hydroxyl-containing alkyl acrylate liquid polymers containing polymerized therein from about 1 weight percent to about 20 weight percent N-vinyl-2-pyrrolidone have improved clarity, and pressure-sensitive adhesives made from such liquid polymers have both improved clarity and adhesion.Type: GrantFiled: January 22, 1979Date of Patent: January 6, 1981Assignee: The B. F. Goodrich CompanyInventor: Jack C. Gilles
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Patent number: 4242483Abstract: The invention relates to new monomers of polysiloxanyl alkyl esters of acrylic and methacrylic acids and their copolymerization with alkyl esters of acrylic, methacrylic acids and/or itaconate esters to produce highly permeable contact lens material. The copolymers preferably include a cross-linking agent and hydrophilic monomer. Contact lenses manufactured from the material are easily machined and polished into hard or semi-hard contact lenses having excellent dimensional stability.Type: GrantFiled: August 13, 1979Date of Patent: December 30, 1980Inventor: Nick N. Novicky
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Patent number: RE31422Abstract: Cross-linked hydrophilic interpolymers and contact lenses made therefrom comprising hydrophilic units of which the only or major proportion are derived from .Iadd.vinyl pyridine or .Iaddend.an N-vinyl heterocyclic monomer, hydrophobic units derived from the group consisting of styrene and ring-substituted styrenes, and cross-linking units derived from monmers containing two or more polymerizable double bonds per monomer unit.Type: GrantFiled: December 9, 1981Date of Patent: October 18, 1983Assignee: Schering CorporationInventors: Samuel Loshaek, Chah M. Shen
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Patent number: RE31533Abstract: Information-carrying discs are comprised of a substrate having an information bearing layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic monomer.Type: GrantFiled: December 3, 1982Date of Patent: March 6, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventor: Terry W. Lewis