Mixed With An 1,2-epoxy Compound Containing More Than One 1,2-epoxy Group Per Mole Or Polymer Derived Therefrom Patents (Class 525/31)
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Patent number: 5107327Abstract: A photosemiconductor device and an epoxy resin composition for use in molding a photosemiconductor used for the photosemiconductor device, the photosemiconductor device comprises a photosemiconductor element molded with a cured transparent epoxy resin composition, the cured transparent epoxy resin composition having a refractive index distribution curve characterized by the following (A), (B), and (C):(A) the refractive index difference X between refractive index values (b) and (c), which respectively are lower and higher than refractive index value (a) corresponding to the maximum peak of the refractive index distribution curve and respectively correspond to those points on the refractive index distribution curve which have a relative height of 20 with the height of the maximum peak being taken as 100, is 0.Type: GrantFiled: July 17, 1990Date of Patent: April 21, 1992Assignee: Nitto Denko CorporationInventors: Syuuji Nishimori, Tadaaki Harada, Yasuhiko Yamamoto, Nobuyuki Hiromori, Yasumori Yoshimura, Katsuya Muramatsu, Katsumi Shimada
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Patent number: 5102605Abstract: A method of making a molded article by injecting into a mold filled with reinforcing material a resin composition including (a) 40 to 80% by weight of a resin including an oligomer having a number average molecular weight of 900 to 3,000 in terms of polystyrene equivalent obtained by gel permeation chromatography and having two or more terminal (meth)acrylate groups and an unsaturated polyester, and (b) 20 to 60% by weight of methyl (meth)acrylate monomer.Type: GrantFiled: August 21, 1991Date of Patent: April 7, 1992Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Katsuo Kagaya, Yoshifumi Hama, Shichinosuke Ito
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Patent number: 5098950Abstract: Disclosed is a thermosetting resin composition which includes(a) an unsaturated polyester,(b) a polymer having a (meth)acrylate group only at one or both terminals of its main chain,(c) a poly(meth)acrylate oligomer,(d) a styrene monomer, and(e) a methyl methacrylate monomer.Also, a method of molding the resin is disclosed, which includes dividing the thermosetting resin composition into two parts, adding a curing agent to one of the two parts and a curing accelerator to another to form two partial compositions, introducing the two partial compositions into a mold, and allowing the two partial compositions to mix with each other and cure.Type: GrantFiled: February 15, 1990Date of Patent: March 24, 1992Inventors: Katsuo Kagaya, Tadao Saito, Shichinosuke Ito
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Patent number: 5084508Abstract: A resin composition comprising(a) 40 to 80% by weight of a resin comprisingan oligomer having a number average molecular weight of 900 to 3,000 in terms of polystyrene equivalent obtained by gel permeation chromatography and having two or more terminal (meth)acrylate groups andan unsaturated polyester, and(b) 20 to 60% by weight of methyl (meth)acrylate monomer.Type: GrantFiled: April 28, 1989Date of Patent: January 28, 1992Assignee: Dainippon Ink & Chemicals, Inc.Inventors: Katsuo Kagaya, Yoshifumi Hama, Shichinosuke Ito
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Patent number: 5080531Abstract: A destructible multiple chamber cartridge for the in situ production of synthetic resin bodies from a reactive set for fastening anchoring elements in boreholes. The reactive set comprises between 18 and 25 parts by weight of a preaccelerated resin component composed of 3-60 parts by weight of a vinyl ester epoxy resin, 28-45 parts by weight of one or several ethylenically unsaturated monomer compounds, 63-3 parts by weight of an unsaturated polyester, and 10-0.1 parts by weight of epoxy resin. The reactive set further comprises 0.4-1.2 parts by weight of a hardener component comprising an organic peroxide, and 40-55 parts by weight of a filler component. The hardener component and the preaccelerated resin component are contained separate from each other in different chambers. When the fastening element is driven into the borehole, the cartridge is destroyed and the components are mixed and hardened, forming the synthetic resin body.Type: GrantFiled: August 27, 1990Date of Patent: January 14, 1992Assignee: Upat GmbH & Co.Inventors: Herbert Kistner, Christian Weber
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Patent number: 5077324Abstract: A reactive composition for preparing synthetic resin bodies used in destructible multible-chamber cartridges and a process for anchoring a fastening element to the fastening base by introducing the destruction multiple-chamber cartridges containing the components of a curable adhesive in a drilling in the fastening base. When the fastening element is driven into the hole, the cartridge is destroyed, the synthetic resin components are mixed and harden forming a synthetic resin body. The reactive compound contains between 18 and 25 parts by weight of a pre-activated resin component composed of (A) between 3 and 60 parts by weight of a vinylester epoxy resin, (B) between 28 and 45 parts by weight of one or several ethylenically unsaturated monomeric compounds and (C) between 63 and 3 parts by weight of an unsaturated polyester and if necessary (D) between 10 and 0.1 part by weight of epoxy resin, between 0.4 and 1.2 parts by weight of hardeners and between 40 and 55 parts by weight of fillers.Type: GrantFiled: February 14, 1989Date of Patent: December 31, 1991Assignee: UPAT GmbH & Co.Inventors: Herbert Kistner, Christian Weber
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Patent number: 5069581Abstract: A process for anchoring a fastener in a base comprising introducing a bore hole in the base a destructible multiple chamber cartridge containing a reactive set for producing a synthetic resin body. The reactive set contains 3-60 parts by weight of a vinyl ester epoxy resin, 28-45 parts by weight of styrene and/or methyl methacrylate, 63-3 parts by weight of an unsaturated polyester resin which is not an ester of a polyepoxide with an ethylenically unsaturated monocarboxylic acid, 10-0.1 parts by weight of an epoxy resin which is not an ester of a polyepoxide with an ethylenically unsaturated monocarboxylic acid, 0.4-1.2 parts by weight of an organic peroxide hardener component, 40-55 parts by weight filler, accelerators, and polymerization inhibitors. The organic peroxide and resin components are in separate chambers. The cartridge is driven into the borehole so that the cartridge is destroyed and the organic peroxide is mixed with the resin components whereby the resin is cured.Type: GrantFiled: August 27, 1990Date of Patent: December 3, 1991Assignee: UPAT GmbH & CompanyInventors: Herbert Kistner, Christian Weber
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Patent number: 5061742Abstract: Stable aqueous acrylic resin dispersions are made from a dispersion in water of the reaction product of a carboxylic acid containing acrylic resin and a diglycidyl ether of a polyoxyalkylene glycol.Type: GrantFiled: May 16, 1990Date of Patent: October 29, 1991Assignee: Hi-Tek Polymers, Inc.Inventor: Michael M. Miller
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Patent number: 4973624Abstract: A resin composition for coating comprising (A) a polyester-modified vinyl copolymer obtained by copolymerization of (a) a polyester resin having 5 to 60% by weight of oil or fatty acid component with special physical limitations, (b) a polymerizable unsaturated monomer having at least one tertiary amino group, (c) a polymerizable unsaturated monomer having at least one carboxyl group, and (d) an unsaturated monomer copolymerizable with the components (b) or (c), and (B) an epoxy resin can be cured at room temperature or with slight heating to give a coating film excellent in dispersibility of pigment having large oil absorption.Type: GrantFiled: February 24, 1989Date of Patent: November 27, 1990Assignee: Hitachi Chemical Company, Ltd.Inventors: Eiichi Ohtani, Masayuki Mogami, Kengo Kobayashi, Shigeyoshi Tanaka
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Patent number: 4921890Abstract: A process for improving the flame retardancy, hygroscopic, soil release and other properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water-soluble monomer and an organic halogen-containing hydrophobic carrier compound at a temperature of between about 40.degree. C. to 100.degree. C. Polymerization of the monomer is thereafter initiated by a chemical or physical initiator to form a polymer evenly disposed on the substrate. The flame retardancy, hygroscopic, soil release and other surface properties of the substrate are thereby improved. The mixture may be in the form of an emulsion wherein the hydrophobic carrier compound is emulsified by an appropriate agent. The invention also pertains to the improved substrates prepared in accordance with the present process.Type: GrantFiled: April 24, 1987Date of Patent: May 1, 1990Assignee: Intera Company, Ltd.Inventors: Katsumi Hayashi, Gregory A. Lentz
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Patent number: 4918120Abstract: A composition for reducing styrene monomer emissions in DCPD resins, while maintaining good interlaminate adhesion, comprising,(a) 0.001 to 1.0% by weight of a paraffin,(b) 0.001 to 3.0% by weight of an intermediate bonding promoter comprising the reaction product of(i) a saturated or unsaturated fatty acid containing 5 to 30, and preferably 10 to 20 carbon atoms,(ii) a mono- or diepoxy compound,(c) 0.0 to 10% by weight of alpha-methyl styrene, and(d) 0.0 to 1.0% by weight of a copper salt,wherein said composition results in styrene emission rates of 60 grams/square meter or less measured one hour after gelation, and retains at least 80% to 90% of the interlaminate adhesion properties of an unmodified resin.Type: GrantFiled: February 3, 1988Date of Patent: April 17, 1990Assignee: Reichhold Chemicals, Inc.Inventors: Douglas G. Vanderlaan, Wolfgang C. Forster
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Patent number: 4895895Abstract: A thickened moulding composition comprises fibrous reinforcement, an ethylenically unsaturated polymer, a monomer copolymerizable therewith and a crystalline unsaturated polyester having a glycol component derived from at least two symmetrical glycols.Preferably, the crysatlline polyester has a molecular weight per double bond of no more than about 210 and a melting point of from 50.degree.-115.degree. C.Type: GrantFiled: June 17, 1987Date of Patent: January 23, 1990Assignee: Scott Bader Company LimitedInventors: Trevor R. Osborne, Stephen J. Thompson
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Patent number: 4891403Abstract: A curable thermosetting resin composition with improved tensile strength, modulus and glass transition temperatures, without a sacrifice in tensile elongation to break, which comprises a blend of:(A) an epoxy resin compound containing at least one vicinal epoxy group in the molecule, and with a curing amount a primary or secondary amine containing curing agent; and(B) a polyester resin with an effective amount of a free radical initiator;where A and B are blended in a ratio of from about 20:80 to about 80:20% by weight, preferably 40:60 to about 75:25% by weight, and more preferably 60:40 to about 75:25% by weight.Type: GrantFiled: June 28, 1988Date of Patent: January 2, 1990Assignee: Shell Oil CompanyInventor: Robert D. Farris
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Patent number: 4879317Abstract: A method is provided for reducing the density of silicone foam resulting from the generation of hydrogen gas by employing a hydride polysiloxane in the form of a mixture of linear hydride polysiloxane and cyclic hydride polysiloxane. Aqueous methanol is also found to be an effective density-reducing agent.Type: GrantFiled: January 24, 1989Date of Patent: November 7, 1989Assignee: General Electric CompanyInventors: Kennith A. Smith, Connie L. Haig
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Patent number: 4865911Abstract: A gasket of a nonwoven sheet material, and a coating composition on at least one side of the nonwoven sheet material. The coating composition is a reaction product of a vinyl functional polydimethylsiloxane, a trimethylsiloxy silica terpolymer, a reactive diluent, and a catalyst. The reactive diluent can be a methyl vinyl cyclic siloxane having the formula (MeViSiO).sub.n wherein n is an integer of from three to five, Me is methyl, and Vi is vinyl.Type: GrantFiled: January 9, 1989Date of Patent: September 12, 1989Assignee: Dow Corning CorporationInventor: John D. Blizzard
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Patent number: 4753982Abstract: A mixture of a vinyl ester and a norbornyl terminated unsaturated polyester or polyesteramide optionally containing one or more copolymerizable ethylenically unsaturated monomers cures to provide mechanical strength, steam resistance, corrosion resistance and heat resistance in excess of that provided by one or both cured separate components of the aforesaid mixture.Type: GrantFiled: December 29, 1986Date of Patent: June 28, 1988Assignee: The Dow Chemical CompanyInventor: Robert E. Hefner, Jr.
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Patent number: 4673706Abstract: The addition of cross-linkable vinyl monomers and epoxy compounds to low shrinking polyester molding compositions containing unsaturated polyesters results in moldings with improved surface characteristics.Type: GrantFiled: June 24, 1986Date of Patent: June 16, 1987Assignee: Union Carbide CorporationInventor: Kenneth E. Atkins
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Patent number: 4588753Abstract: The invention relates to a plastics cellular material comprising the reaction product of an unsaturated polyester resin containing a polymerizable unsaturated monomer and an epoxy-based vinyl ester in the presence of surfactants.Type: GrantFiled: October 29, 1984Date of Patent: May 13, 1986Inventors: Alexander Miutel, Jerry P. Shira
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Patent number: 4585831Abstract: Adducts, improved polymer-polyols and improved polyurethane foams are provided. The adducts are produced by reacting suitable polyol and epoxy co-reactant to essentially eliminate all epoxy groups. The polymer-polyol is produced by polymerizing suitable ethylenically unsaturated monomer in the adduct or in the adduct forming mixture, in the later case the adduct forming reaction and the polymerization reaction occur simultaneously to produce the polymer-polyol. Polyurethane foams are produced by the usual method but employing the novel adduct or polymer-polyol of the present invention.Type: GrantFiled: October 17, 1984Date of Patent: April 29, 1986Assignee: Union Carbide CorporationInventor: Paul Stamberger
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Patent number: 4569957Abstract: This invention discloses a creep resistant thermoset molding composition which is of particular value as a material from which wheels can be made. The creep resistant molding composition of this invention is comprised of a mixture of a vinyl ester resin and a dicyclopentadiene polyester resin.Type: GrantFiled: November 16, 1984Date of Patent: February 11, 1986Assignee: The Goodyear Tire & Rubber CompanyInventor: James A. Woelfel
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Patent number: 4550137Abstract: In a curable composition capable of acid catalyzed crosslinking and having as its principal components an active hydrogen-containing resin, a crosslinking agent present externally and/or internally as a part of the active hydrogen-containing resin, and an acid catalyst, cure can be readily attained by using as the acid catalyst, a catalytic amount of a latent acid catalyst which is the reaction product of a member selected from a lactam, an amino acid, an amino ester and an aminoalkyl ester; an alcohol or water; and a member selected from a sulfonic acid, sulfuric acid, and phosphoric acid.Type: GrantFiled: March 28, 1983Date of Patent: October 29, 1985Assignee: PPG Industries, Inc.Inventors: Rostyslaw Dowbenko, Barbara A. Greigger
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Patent number: 4530962Abstract: An elastomer-modified unsaturated polymer comprises an unsaturated polyester or vinyl ester polymer modified by a low molecular weight elastomer. The elastomer has terminal groups provided by an epoxy resin which render it compatible with the unsaturated polymer. These elastomer-modified unsaturated polymers are useful for providing resin compositions which include a cross-linking agent for the unsaturated polymer. The elastomer is soluble in the resin composition, which is curable to provide an unsaturated resin matrix having particles of the modifying elastomer dispersed therein.Type: GrantFiled: November 9, 1982Date of Patent: July 23, 1985Assignee: Scott Bader Company LimitedInventor: Ian J. Alexander
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Patent number: 4489184Abstract: This invention discloses a creep resistant thermoset molding composition which is of particular value as a material from which wheels can be made. The creep resistant molding composition of this invention is comprised of a mixture of a vinyl ester resin and a dicyclopentadiene polyester resin.Type: GrantFiled: September 26, 1983Date of Patent: December 18, 1984Inventor: James A. Woelfel
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Patent number: 4482649Abstract: This invention relates to a plastics cellular material and to a process for production of a plastics cellular material. The plastics cellular material has a resin binder and is characterized by the inclusion of products of the reaction of polyester resins and epoxy-based vinyl esters in the presence of surfactants. The process includes taking a first mixture of an unsaturated fast curing polyester resin, epoxy-based vinyl esters, copolymerizeable monomers, a finely dispersed gas releasing salt, hardening accelerators, finely dispersed surfactants, and fillers. The process also includes taking a second mixture is mixed that includes an acidic solution, for reaction with the gas releasing salt as a blowing agent, and organic catalysts. The two mixtures are combined to form a third mixture that will foam in a controllable manner and cure to produce a foam material.Type: GrantFiled: February 21, 1984Date of Patent: November 13, 1984Assignee: Phoenix Foam Inc.Inventors: Alexander Miutel, Jerry P. Shira
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Patent number: 4482671Abstract: Provides new and improved water-reducible coating compositions and methods of making them. Three preferred processes are disclosed. These differ in the manner of incorporating and chemical nature of an extender polymer.Broadly, the process of the invention is one for forming an aqueous dispersion of a fluent resinous composition ofa. a mixture in an organic solvent of(i) an ionizable graft polymer of an epoxy resin and an addition polymerized resin, the addition polymerized resin being bonded to aliphatic backbone carbon atoms of the epoxy resin by carbon-to-carbon bonds, and(ii) an extender resin;b. an aqueous vehicle, andc. an ionizing agent;the ionization present from said combined components being sufficient to establish the components as a dispersion in the aqueous vehicle, and then addition polymerizing a quantity of addition polymerizable monomer, under addition polymerizing conditions, in said aqueous dispersion, the aqueous dispersion serving as a vehicle therefor.Type: GrantFiled: November 1, 1982Date of Patent: November 13, 1984Assignee: SCM CorporationInventors: James T. K. Woo, Vincent W. Ting, Richard M. Marcinko
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Patent number: 4468485Abstract: A method of preparing polymer lattices of homogeneous interpenetrated structure, starting from a mixture of at least two basic prepolymer constituents is characterized by the fact that a microwave radiation is applied having a frequency spectrum chosen in order that it interacts preferentially with the first prepolymer and a power density chosen in order that it directly activates the exothermic reaction of cross-linking of the first prepolymer. The cross-linking of the second prepolymer is only triggered under the combined action of the heat due to the interaction of the microwave energy with the second prepolymer and the heat introduced by the cross-linking reaction of the first prepolymer, which makes it possible to combine propagation of the two cross-linking reactions at similar speeds.Type: GrantFiled: January 11, 1983Date of Patent: August 28, 1984Assignee: Electricite de France (Service National)Inventors: Albert Gourdenne, Pascal Heintz
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Patent number: 4465806Abstract: The compositions disclosed herein comprise a mixture of:(1) An unsaturated polyester resin; such as the polymeric ester of maleic acid or anhydride and a glycol such as ethylene glycol; and(2) The reaction product of a polyepoxy compound, such as the diglycidyl ether of bisphenol-A, and an unsaturated monocarboxylic acid, such as acrylic or methacrylic acid, in which reaction product there remains unreacted at the time of mixing with said polyester resin at least 5 percent of the original epoxy groups of said polyepoxy compound.This mixture when molded or cured gives improvement with respect to thermal and humid aging as compared to similar compositions in which the epoxy groups of said reaction product are substantially all reacted prior to mixture with said unsaturated polyester resin. The flexural strength, in particular, of the compositions are better retained on aging without adverse effect on other properties.Type: GrantFiled: February 16, 1983Date of Patent: August 14, 1984Assignee: Plastics Engineering CompanyInventor: Chung J. Lee
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Patent number: 4433070Abstract: Cultured onyx, cultured marble, and like mineral-appearing products are provided, as well as intermediates and components and methods therefor through the combination of a locally discontinuous phase comprising a synthetic organic resin portion hardened to a predetermined hardness and a visually distinguishable continuous phase comprising a synthetic organic resin portion separately hardened to the predetermined hardness with the discontinuous phase intimately distributed therein, to form shaped structures having surfaces simulative of onyx, marble, or like naturally occurring mineral in appearance, which surfaces are uniformly polishable in phase undifferentiated relation.Type: GrantFiled: May 5, 1980Date of Patent: February 21, 1984Inventors: Gilbert B. Ross, Theodore E. Stevens
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Patent number: 4424299Abstract: The invention relates to a process for manufacturing unsaturated polyester resins with suppressed volatilization of monomer, useful in the manufacture of laminates, moulding compounds, varnish coatings and castings. It is known a process for manufacturing unsaturated polyester resins by dissolving unsaturated polyesters in monomers with the addition of paraffin, waxes, ceresin wax, emulsifiers forming emulsions of the "water-in-oil" or "oil-in-water" type. These additives suppress the volatilization of monomers, but they exhibit a limited solubility in the resin and a majority of them separate on the surface during curing of the polyester resin and, thus, reduce the adhesion capacity of the subsequent layers of resin or laminates to the previously cured substrate.It has been found that unsaturated polyester resins with suppressed volatilization of monomer can be prepared by dissolving the unsaturated polyester in the monomer and by introducing 0.005-5.Type: GrantFiled: April 5, 1983Date of Patent: January 3, 1984Assignee: Instytut Chemii PrzemyslowejInventors: Piotr A. Penczek, Zofia Klosowska-Wolkowicz, Ewa J. Kicko-Walczak, Andrzej Kopec
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Patent number: 4385154Abstract: Novel thermosetting compositions, including a polyimide/N-vinylpyrrolidone prepolymer, optionally comprising an unsaturated polyester, and an epoxy resin, are well adapted for the molding of a variety of useful shaped articles.Type: GrantFiled: October 15, 1981Date of Patent: May 24, 1983Assignee: Rhone-Poulenc IndustriesInventors: Robert Cassat, Gerard Guillot
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Patent number: 4362848Abstract: Cycloalphatic acrylate compositions and methods of making them are disclosed. The compositions are mixtures containing dicyclopentadiene (meth) acrylate and (meth) acrylates such as the mono and di (meth) acrylates of tri, and tetracyclopentadiene and a mixture of the copolymers of (meth) acrylic acid with adducts of cyclopentadiene with isoprene and/or piperylene and a mixture of poly (meth) acrylates having the repeating unit ##STR1## Where R.sup.1 is hydrogen or ##STR2## R.sup.2 is CH.sub.2 .dbd.CZ--C(O)--O-- Z is H, or methyln is 0, 1 or 2 andm is 0 or 1 and when m is 0 there isa double bond present.The compositions are useful to make cross-linkable blends with unsaturated resins or monomers and to make laminates.Type: GrantFiled: May 29, 1981Date of Patent: December 7, 1982Assignee: The Dow Chemical Co.Inventors: Hans R. Friedli, Donald L. Nelson, John L. Massingill, Jr.
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Patent number: 4350789Abstract: Unsaturated polyester resins are rendered less brittle without deteriorating other properties thereof by mixing therewith 0.1 to 20 parts of a vinyl terminated reactive liquid polymer per 100 parts of the polyester resin.Type: GrantFiled: October 28, 1980Date of Patent: September 21, 1982Assignee: The B. F. Goodrich CompanyInventors: Eugene H. Rowe, Frank H. Howard
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Patent number: 4345048Abstract: Brominated cycloaliphatic (meth) acrylate compositions are prepared by the reaction of bromine at a temperature in the range from -30.degree. C. to 50.degree. C. with compositions made by reacting (meth) acrylic acid with dicyclopentadiene compositions in the presence of a Friedel-Crafts catalyst such as BF.sub.3.The brominated compositions are useful to make copolymers which find use as metal coatings, laminates, ultraviolet light curable coatings and the like.Type: GrantFiled: January 21, 1980Date of Patent: August 17, 1982Assignee: The Dow Chemical CompanyInventors: Hans R. Friedli, Clinton J. Boriack
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Patent number: 4336349Abstract: Chlorinated cycloaliphatic (meth) acrylate compositions are prepared by the reaction of chlorine at a temperature in the range from -30.degree. C. to 50.degree. C. with compositions made by reacting (meth) acrylic acid with crude dicyclopentadiene in the presence of a Friedel-Crafts catalyst such as BF.sub.3. The chlorinated compositions have a pleasant fruity odor and are useful to make homopolymers or copolymers which find use as metal coatings, inks, ultraviolet light curable coatings and the like.Type: GrantFiled: December 22, 1980Date of Patent: June 22, 1982Assignee: The Dow Chemical CompanyInventors: Hans R. Friedli, Clinton J. Boriack
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Patent number: 4336344Abstract: The stability to phase separate solutions of unsaturated polyesters, vinyl ester resins or mixtures thereof and an elastomeric additive is improved by the use of a compatibilizing agent which is the ester of a carboxyl terminated diene polymer and a polyoxyalkylene.Type: GrantFiled: August 24, 1981Date of Patent: June 22, 1982Assignee: The Dow Chemical CompanyInventor: Laurence J. Craigie
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Patent number: 4319009Abstract: Cycloalphatic acrylate compositions and methods of making them are disclosed. The compositions are mixtures containing dicyclopentadiene (meth) acrylate and (meth) acrylates such as the mono and di (meth) acrylates of tri, and tetracyclopentadiene and a mixture of the copolymers of (meth) acrylic acid with adducts of cyclopentadiene with isoprene and/or piperylene and a mixture of poly (meth) acrylates having the repeating unit ##STR1## where R.sup.1 is hydrogen or ##STR2## R.sup.2 is CH.sub.2 .dbd.CZ-C(O)--O-- Z is H, or methyln is 0, 1 or 2 andm is 0 or 1 and when m is 0 there isa double bond present.The compositions are useful to make crosslinkable blends with unsaturated resins or monomers and to make laminates.Type: GrantFiled: October 13, 1978Date of Patent: March 9, 1982Assignee: The Dow Chemical CompanyInventors: Hans R. Friedli, Donald L. Nelson, John L. Massingill, Jr.
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Patent number: 4309473Abstract: A strand prepreg which comprises (i) a resin composition comprising 100 parts by weight of thermosetting resin having a softening point of 60.degree. C. or less and about 5 to 60 parts by weight of epoxy resin having a number average molecular weight of 5,000 or more and (ii) about 20 to 80% by volume strands of carbon fibers, glass fibers, aromatic polyamide fibers and the like, wherein the strands are impregnated with the resin composition.Type: GrantFiled: December 5, 1979Date of Patent: January 5, 1982Assignee: Toho Beslon Co., Ltd.Inventors: Tsuyoshi Minamisawa, Keitsugu Nohara
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Patent number: 4302553Abstract: Synthetic resins having a topologically interpenetrating polymeric network comprise macrocyclic structures of chemically different, crosslinking polymers which are permanently entangled with each other. The several macrocyclic structures that are present are characterized by the absence of chemical bonds between the individual networks.Type: GrantFiled: November 2, 1972Date of Patent: November 24, 1981Assignees: Harry L. Frisch, Kurt C. Frisch, Daniel KlempnerInventors: Harry L. Frisch, Kurt C. Frisch, Daniel Klempner
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Patent number: 4293659Abstract: A method for producing coated, molded, fiber-reinforced thermoset plastic articles having an adherent coating in heated matched metal molds.The coating composition includes(A) a blocked polyisocyanate which is the reaction product, essentially free of unreacted --NCO radicals, of e-caprolactam and organic polyisocyanate;(B) a polyepoxide-polyacrylate which is the reaction product, essentially free of unreacted epoxy radicals of a polyepoxide and acrylic or methacrylic acid;(C) ethylenically unsaturated polyester resin;(D) copolymerizable alpha-beta ethylenically unsaturated monomer;(E) an initiator for addition polymerization;(F) a catalyst for the reaction of --NCO radicals and --OH radicals;(G) filters, such as inert particulate filled, pigments, mold release agents.The coating composition is applied in the matched metal mold after a fiber-reinforced thermoset plastic article has been shaped within the mold.Type: GrantFiled: May 1, 1980Date of Patent: October 6, 1981Assignee: Freeman Chemical CorporationInventor: Glenn R. Svoboda
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Patent number: 4273888Abstract: Macromonomers are obtained by successively reacting an oligomer or polymer containing at least one hydroxyl group with a cyclic carboxylic anhydride in an amount of at least one mole of the anhydride per hydroxyl group, and reacting the product with a compound containing a single epoxide group and a single polymerizable double bond, in such proportions as to esterify all carboxyl groups in that product. Graft copolymers which are useful as steric stabilizers for dispersions of polymer particles can be made by copolymerizing the macromonomers with other polymerizable monomers.Type: GrantFiled: December 7, 1979Date of Patent: June 16, 1981Assignee: Imperial Chemical Industries LimitedInventor: Clive W. Graetz
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Patent number: 4267288Abstract: Described are polyester-urethane-epoxy adhesives produced by reacting one or more diols with two or more dicarboxylic acids to form a polyester prepolymer; chain-extending the prepolymer with an organic diisocyanate to yield a hydroxy-terminated polyester-urethane; capping the urethane partially or completely with a dicarboxylic acid or anhydride of dicarboxylic acid; and finally reacting with an epichlorohydrin/bisphenol A-type epoxy resin, forming an epoxy polyester-urethane block copolymer. The resulting product may then be crosslinked in use as an adhesive.Type: GrantFiled: July 23, 1979Date of Patent: May 12, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventors: Dean C. Burkhart, Lee R. Harper, Eugene G. Sommerfeld