Derived From Carboxylic Acid Containing At Least One Atom Of Nitrogen Patents (Class 526/215)
-
Patent number: 4460754Abstract: A process is described for the two-stage mass polymerization of vinyl chloride, in which 0.1 to 3% by weight, relative to the monomer employed, of one or more of the following compounds which are known as heat stabilizers for polyvinyl chloride: monoalkyltin-IV or dialkyltin-IV compounds in which the residual valencies of the tin are attached to organic radicals via sulfur atoms, and/or aminocrotonic acid esters, are added to the polymerization mixture when a conversion of 65 to 85% has been reached. After thorough removal of the unreacted vinyl chloride from the resulting polymer, preferably at temperatures above the glass transition point of the polymer, products are obtained which have an improved color in comparison with polyvinyl chloride produced by conventional mass polymerization.Type: GrantFiled: June 1, 1982Date of Patent: July 17, 1984Assignee: Hoechst AktiengesellschaftInventors: Robert Redinger, Walter Berngruber
-
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
-
Patent number: 4404345Abstract: Adhesive compositions are described which consist of an adhesive base as a first part and an initiator portion as a second part, said first part consisting essentially of (a) 100 parts by weight of a polymerizable monomer having at least one .alpha.,.beta.-unsaturated carboxyl functionality; (b) about 0.05 to 20 parts by weight of a halogenated organic compound as an accelerator; and (c) an inhibitor of free-radical polymerization; and the second part comprising a condensation reaction product of an aldehyde and a primary or secondary amine. These compositions may be formulated as adhesives which, for example, exhibit pressure-sensitive properties, which are particularly suitable in hot-melt applications, or which are particularly suitable as structural adhesives. Bonding methods are also described herein.Type: GrantFiled: September 16, 1981Date of Patent: September 13, 1983Assignee: Minnesota Mining and Manufacturing CompanyInventor: Edward W. Janssen
-
Patent number: 4388448Abstract: Homopolymers of glycidyl methacrylate (GMA) and copolymers of GMA with other methacrylate comonomers; their preparation employing an anionic initiator which is the adduct of a selected organo(alkali metal) compound and at least one mole of methyl methacrylate or another lower alkyl methacrylate; as well as solvolyzed forms of the GMA polymers.Type: GrantFiled: February 23, 1981Date of Patent: June 14, 1983Assignee: E. I. Du Pont de Nemours and CompanyInventor: Lester R. Melby
-
Patent number: 4340708Abstract: The present invention is directed to anaerobically hardening adhesives, sealing compounds, and the like. More particularly, the present invention is directed to an anaerobically hardening adhesive and sealing composition comprising methacrylic or acrylic acid esters, organic peroxides, nitrogen containing compounds as accelerators for polymerization, and customary adjuvant substances, wherein a content of cyanoacetic acid or an ester or an amide thereof is also present.Type: GrantFiled: December 22, 1980Date of Patent: July 20, 1982Assignee: Henkel Komanditgesellschaft auf AktienInventor: Werner Gruber
-
Patent number: 4321349Abstract: Curable acrylate ester compositions having as an accelerator for the polymerization a hydrazine derivative of the formula R.sup.1 --HN--NH--CO--R.sup.2. Typical of the monomers are the polyalkyleneglycol dimethacrylates and the so-called urethane acrylates. Polymerization is preferably initiated by a peroxy compound such as cumene hydroperoxide, such a composition having anaerobic curing characteristics.Type: GrantFiled: May 27, 1980Date of Patent: March 23, 1982Assignee: Loctite CorporationInventor: Richard D. Rich
-
Patent number: 4292420Abstract: A method for drying a polymer latex comprising mixing with said latex a partially fugitive gas producing electrolyte and filtering said latex to recover the polymer.Type: GrantFiled: December 20, 1979Date of Patent: September 29, 1981Assignee: The B. F. Goodrich CompanyInventors: James W. Turner, Bela K. Mikofalvy
-
Patent number: 4287330Abstract: Curable acrylate ester compositions having as an accelerator for the polymerization a hydrazine derivative of the formula R.sup.1 --HN--NH--CO--R.sup.2. Typical of the monomers are the polyalkylene-glycol dimethacrylates and the so-called urethane acrylates. Polymerization is preferably initiated by a peroxy compound such as cumene hydroperoxide, such a composition having anaerobic curing characteristics.Type: GrantFiled: May 23, 1975Date of Patent: September 1, 1981Assignee: Loctite CorporationInventor: Richard D. Rich
-
Patent number: 4286081Abstract: There is disclosed a process for preparing vinyl dispersion resins by conducting the polymerization reaction of the vinyl monomer or monomers in an aqueous alkaline medium, using an oil-soluble polymerization initiator, at low temperatures, in the presence of an emulsifier and, optionally, at least one long straight chain alcohol containing from 14 to 24 carbon atoms, and in the presence of an electrolyte, such as for example, ammonium carbonate ((NH.sub.4).sub.2 CO.sub.3), and wherein the reaction ingredients are thoroughly mixed, or homogenized, prior to polymerization. The aqueous emulsion of the polymer(s) so produced are capable of being dried into friable aggregates of individual spheres of polymer particles. The dried resin can easily be formulated into plastisols of high North Fineness and high gloss. In addition, polymer buildup in the reactor is reduced.Type: GrantFiled: December 20, 1979Date of Patent: August 25, 1981Assignee: The BF Goodrich CompanyInventors: Bela K. Mikofalvy, James W. Turner
-
Patent number: 4260713Abstract: Water-soluble polymers having high molecular weight with little branching and good water solubility, particularly acrylamide series polymers having excellent flocculation effect can be obtained when 2,2'-azobis-(N,N'-dimethyleneisobutylamidine) or an acid addition salt thereof or a mixture of 2,2'-azobis(N,N'-dimethyleneisobutylamidine) or an acid addition salt thereof and another azo compound is used as polymerization initiator.Type: GrantFiled: April 9, 1979Date of Patent: April 7, 1981Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Motoaki Tanaka, Tsutomu Miyagawa, Takashi Nakata
-
Patent number: 4243763Abstract: Tertiary aromatic amines derived from aminoglutethimide or para-aminophenylacetic acid act as accelerators for the peroxide catalyzed polymerization of acrylic resins, especially methacrylates, acrylates and unsaturated polyesters. The amines are characterized by good hardening, strength, color and toxicity characteristics, and are thereby particularly suited for use in the filling and restoration of human teeth and the cementing of bone.Type: GrantFiled: March 10, 1978Date of Patent: January 6, 1981Assignee: American Dental Association Health FoundationInventor: Harold Argentar
-
Patent number: 4230839Abstract: This invention relates to adducts of salts of polymerizable tertiary amines with acrylic compounds illustrated by acrylamide and acrylonitrile; to polymers and copolymers containing said adducts and to processes for preparing them. This invention also relates to the use of said polymers and copolymers, particularly in the clarification of turbid waters by flocculation or flotation of oil and/or suspended solids. In the preferred embodiment, the quaternary adduct monomer is: ##STR1## where X is an anion, preferably halide such as chloride or carboxylate such as acetate; and polymers and copolymers containing units thereof.Type: GrantFiled: October 27, 1978Date of Patent: October 28, 1980Assignee: Petrolite CorporationInventors: Rudolf S. Buriks, Allen R. Fauke, David W. Griffiths
-
Patent number: 4219626Abstract: Amines, amides and amidines work as accelerators for polymerization reactions with initiators of the 1.2-diphenyl ethane type.Type: GrantFiled: September 5, 1978Date of Patent: August 26, 1980Assignee: Bayer AktiengesellschaftInventors: Heinrich Wolfers, Hans J. Rosenkranz
-
Patent number: 4188349Abstract: Poly- or vinyl-ester resin compositions containing ethylenic unsaturation and susceptible to free radical polymerization may be further polymerized by contacting the with an initiating compound having the formula: ##STR1## wherein R.sub.1 is a substituted or unsubstituted aryl radical.Type: GrantFiled: June 21, 1977Date of Patent: February 12, 1980Assignee: ICI Americas Inc.Inventors: Kenneth H. Markiewitz, Alfred J. Restaino
-
Patent number: 4170699Abstract: The production of polymer beads by a suspension polymerization process in which a vinyl aromatic monomer having a free-radical generating catalyst dissolved therein is suspended in an aqueous medium with the aid of from 0.1 to 2.0 percent by weight, based on monomer, of a finely divided phosphate suspending agent in the presence of a modifier and heated to cause the monomer to polymerize into polymer beads is improved by the addition to the suspension of at least about 0.01 percent by weight based on monomer of an adjunct modifier, glutamic acid. Although the process of the invention is especially applicable in the preparation of large polymer beads, the glutamic acid also makes it possible to prepare the smaller polymer beads having narrow particle size distribution, also.Type: GrantFiled: June 29, 1978Date of Patent: October 9, 1979Assignee: Arco Polymers, Inc.Inventor: Harold A. Wright
-
Patent number: 4095019Abstract: Ethylenically unsaturated monomers susceptible to free radical polymerization may be polymerized by contacting the monomers with an initiating compound having the formula: ##STR1## wherein R.sub.1 is a substituted or unsubstituted aryl radical.Type: GrantFiled: April 5, 1976Date of Patent: June 13, 1978Assignee: ICI Americas Inc.Inventors: Kenneth H. Markiewitz, Alfred J. Restaino
-
Patent number: 4072810Abstract: A new class of compounds: R-W-R' where R and R' are identical oxy radicals containing peroxide functions such as dialkyl or diaralkyl peroxide, peroxyketal, peroxyester, or monoperoxycarbonate, and W is a carbonyl group, or carbonyl containing group, or an alkylidene or aralkylidene group, or a phosphorus containing group.Examples:Di[1,3-dimethyl-3-(t-butylperoxy)butyl] carbonate;Di[1,3-dimethyl-3-(n-butoxycarbonylperoxy)butyl] carbonate;2,2-Bis[3,3-di(t-butylperoxy)butoxy] propane;Di[1,3-dimethyl-3-(t-butylperoxy)butyl] ethyl phosphate.They are free radical affording compounds useful in crosslinking of polyolefins and unsaturated polymers, and for the polymerization of vinyl monomers and diolefinic monomers.Type: GrantFiled: March 16, 1973Date of Patent: February 7, 1978Assignee: Pennwalt CorporationInventors: Antonio J. D'Angelo, Orville L. Mageli, Chester S. Sheppard
-
Patent number: 4063012Abstract: New aliphatic azo compounds containing an .alpha.-hydroperoxy group and the alkali metal and alkaline earth metal salts thereof as represented by the general structure ##STR1## processes for preparing I where M is H and R is t-aliphatic by reacting t-aliphatic azo compounds having an .alpha.-halo substituent with about an equimolar amount of sodium or hydrogen peroxide; processes for converting I where M is H to its alkali or alkaline earth metal salt by reaction with aqueous solutions of the corresponding base or with calcium or sodium hydride; and the use of these novel compounds as polymerization initiators for vinyl monomers and as curing agents for resins. For example, 2-t-butylazo-2-hydroperoxy-4-methylpentane is prepared from sodium peroxide and 2-t-butylazo-2-chloro-4-methylpentane and used to polymerize vinyl chloride and to cure unsaturated polyester resin.Type: GrantFiled: April 19, 1976Date of Patent: December 13, 1977Assignee: Pennwalt CorporationInventors: Ronald Edward MacLeay, Chester Stephen Sheppard
-
Patent number: 4058656Abstract: Initiating compounds having the following formula: ##STR1## wherein R.sub.1 in an substituted or unsubstituted aryl radical and wherein R.sub.2 is hydrogen or alkyl are useful in initiating polymerization reaction of ethylenically unsaturated monomers susceptible to free radical polymerization.Type: GrantFiled: April 5, 1976Date of Patent: November 15, 1977Assignee: ICI United States Inc.Inventors: Kenneth H. Markiewitz, Alfred J. Restaino
-
Patent number: 4055714Abstract: Compounds which contain azo or peroxide linkages as well as the radical of an ultraviolet light stabilizing group are described. These compounds function as polymerization initiators which cause an ultraviolet light stabilization group to be chemically bound to the polymer.Type: GrantFiled: April 27, 1976Date of Patent: October 25, 1977Assignee: Pennwalt CorporationInventors: Chester S. Sheppard, Ronald E. MacLeay
-
Patent number: 4048423Abstract: Unsymmetrical azo compounds (R").sub.3 C--N.dbd.N--R' where (R").sub.3 C-- is tert.-aliphatic and R' is --C(R.sub.1)(R.sub.2)(Z) or ##STR1## e.g., 1-t-butylazo-1-chlorocyclohexane, their use as vinyl polymerization initiators and polyester resin curing agents, and methods for preparing same from t-aliphatic hydrazones and t-aliphatic .alpha.-halo-substituted azoalkanes.Type: GrantFiled: March 29, 1976Date of Patent: September 13, 1977Assignee: Pennwalt CorporationInventors: Ronald Edward MacLeay, Chester Stephen Sheppard
-
Patent number: 4042773Abstract: Compounds which contain azo or peroxide linkages as well as the radical of an ultraviolet light stabilizing group are described. These compounds function as polymerization initiators which cause an ultraviolet light stabilization group to be chemically bound to the polymer.Type: GrantFiled: April 27, 1976Date of Patent: August 16, 1977Assignee: Pennwalt CorporationInventors: Chester S. Sheppard, Ronald E. MacLeay
-
Patent number: 3992369Abstract: A new compound, 2-[(1-cyano-1-methylethyl)azo]-2-methylpropionamide, has been found which is useful as an initiator in the polymerization of ethylenically unsaturated compounds.Type: GrantFiled: September 18, 1975Date of Patent: November 16, 1976Assignee: E. I. Du Pont de Nemours and CompanyInventor: Earl Phillip Moore, Jr.
-
Patent number: 3965145Abstract: A new class of compounds: R--W--R' were R and R' are identical oxy radicals containing peroxide functions such as dialkyl or diaralkyl peroxide, peroxyketal, peroxyester, or monoperoxycarbonate, and W is a carbonyl group, or carbonyl containing group, or an alkylidene or aralkylidene group, or a phosphorus containing group.ExamplesDi[1,3-dimethyl-3-(t-butylperoxy)butyl]carbonate;Di[1,3-dimethyl-3-(n-butoxycarbonylperoxy)butyl]carbonate;2,2-Bis[3,3-di(t-butylperoxy)butoxy]propane;Di[1,3-dimethyl-3-(t-butylperoxy)butyl]ethyl phosphate.They are free radical affording compounds useful in crosslinking of polyolefins and unsaturated polymers, and for the polymerization of vinyl monomers and diolefinic monomers.Type: GrantFiled: January 16, 1974Date of Patent: June 22, 1976Assignee: Pennwalt CorporationInventors: Antonio Joseph D'Angelo, Orville Leonard Mageli, Chester Stephen Sheppard