Epoxy binder and reinforced profile fibre-glass based on said binder |
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IPC classes for russian patent Epoxy binder and reinforced profile fibre-glass based on said binder (RU 2425852):
Epoxy binder, prepreg based thereon and article made therefrom / 2424259
Invention relates to preparation of epoxy binder for construction polymer composite materials based on carbon fibre filler, which can be used in aviation, space, machine- and shipbuilding industries, as well as other industries. The binder contains the following (pts.wt): epoxy-novolak resin 24-35, nitrogen-containing epoxy resin 27-32, hardener - 4,4'-diaminodiphenylsulphone 30-32, diglycidyl ether of diethyleneglycol 5-10 and a product of condensing glycol with dimethyterephthalate 2-5. The prepreg contains the following (in wt %): said epoxy binder 30-50 and fibrous filler - carbon bundles, tapes, fabric 50-70.
 Binder, preparation method and prepreg / 2415891
Binder for preparing prepregs is a product of reacting polyamide acid and an epoxy-novolac oligomer with the following ratio of components in wt %: polyamide acid 1-20, epoxy-novolac oligomer - the rest. The invention also discloses a method of preparing the said binder and a prepreg from the said binder.
 Powder coating composition for coating pipes / 2408613
Composition contains a homogeneous mixture consisting of at least one bromine-functionalised epoxy resin, at least one epoxy curing agent and at least one pigment, filler and/or coating additive. Content of bromine in the bromine-functionalised epoxy resin is equal to 5-60%. The composition also contains alkanol amine and at least one zinc borate compound. Alkanol amine is selected from a group consisting of diethanol amine and tris(hydroxymethyl)aminomethane. The method of preparing the composition involves mixing components, heating to melting point of the mixture, extrusion of the molten mixture, cooling, crushing and grinding to powder. The composition provides a coating with high glass transition temperature and acceptable flexibility when depositing the coating onto a metallic or plastic base, in particular metallic and plastic pipes.
 Method of protection and/or reconditioning of corroded metal surface and cover composition obtained by this method / 2379320
Blemished surface is covered with polyester resins Derakane 8084 as primer coat, after drying surface is covered with at least two layers of powder-bonded glass-fiber mat and three layers of surface film as reinforcing layer, these layers are resinated by Derakane 411-350, rolled, after drying protecting cover as wax top coat based on isophthalic polyester is applied.
Electrical embedment compound / 2343577
Invention is attributed to the field of electric engineering specifically to epoxide thin filling compounds used for electric insulating and reinforcing by means of embedding of high-voltage power supply units, transformers, electric circuitry, uncased and cased electric couplers, for sealing and protecting elements of radio-electronic devices against moisture and mechanical impacts. Composition for filling compound with moderate initial viscosity contains 30-36 wt-p. of epoxide diane resin, 12-20 wt-p. of threeglycid polyoxypropylene triol ether, 10-12 wt-p. of monoglycid n-butanol ether, 18-22 mass-p. of low-polymeric polyamid resin and 7-10 wt-p. of aliphatic amine.
 Process of polymer binder production / 2326909
Invention concerns process of heatproof binder production for permeation of glass-cloth filler used in production of chimney vent shafts, offtake collector pipes for hot aggressive gas etc. The process involves stirring of basic resin - epoxy novolac heated to 80-100°C beforehand - in acetic-alcohol-toluene solvent for up to 12 hours. For at least 3 hours at 30-50°C phenol formaldehyde novolac with particle size of 2-3 cm is added to the obtained solution and stirred. Further promoting 2,4,6-tris/dimethylamino/methyl/phenol or diethylaminomethylethoxysilane is introduced and stirred continuously for at least 20 minutes. Obtained binder of given density is filtered.
 Epoxy binder, the prepreg based on it and the product is made of prepreg / 2184128
The invention relates to the field of creation of high-strength composite materials on the basis of fibrous fillers and epoxy resins, which can be used in machine building, shipbuilding, aviation industry and other fields
 The rubber mixture / 2125066
 A polyvinylchloride composition / 2108352
The invention relates to compositions based on polyvinyl chloride for injection molding and can be used as the plastic for making bottom shoes
 Anti-friction composition / 2080337
The invention relates to anti-friction composition based on PTFE, of a complex of thermosetting resin and filler, and can be used in the manufacture of high-loaded friction units of machines and mechanisms, having a low coefficient of friction and operating at elevated temperatures
 Epoxy resins containing cycloaliphatic diamine based curing agent / 2418816
Invention relates to curing compositions for epoxy resin based systems. The invention discloses a curing composition for epoxy resins, containing a mixture of 1,3-bis(aminomethyl)cyclohexane and 1,4-bis(aminomethyl)cyclohexane, a prepolymer curing composition for epoxy resins, containing a product of reacting epoxide with a mixture of 1,3-bis(aminomethyl)cyclohexane and 1,4-bis(aminomethyl)cyclohexane, as well as a method of preparing the prepolymer curing composition, a method of gluing two substrates, an aqueous epoxy resin and versions of curing compositions and methods of applying a coating on a substrate.
 Triethanolamine perchlorato (triflato)metal inner-complex coordination polymers as additives for synthetic polymers / 2398793
Invention discloses at least one triethanolamine perchlorato (triflato) metal inner-complex coordination polymer with monomer links of formula
 Adhesion activating agent of rubbers to brass-coated metal / 2380385
There is described adhesion activating agent of rubbers to brass-coated metal, corresponding alloy of blocked by ε-caprolactam and higher fatty acids dy- and (or) polyisocyanate with cobalt stearate, boric acid and secondary phenylenediamine. Mentioned alloy is encapsulated by powder-like inorganic matter, selected from group, including colloidal silicic, kaolin, bentonite, zinc oxide, at ratio (wt %): 60-20 and 40-80 correspondingly.
 Epoxide resin hardening compositions / 2346012
Present invention pertains to versions of compositions, which are used in making powder coatings for pipes. In the first version, the composition based on epoxide resin contains a mixture of a hardening agent and a primary amino alcohol. In the second version, the hardening composition based on epoxide resin contains a hardener-primary amino alcohol, which reacts with a phenol resin derivative. The amino alcohol used has the following structural formula:
 Novel stabilising sysem for halogenated polymers / 2341542
Stabilising system includes, at least, (a) one perfluoralkansulfonate salt and (b), at least, one or several indoles and/or ureas and/or alkanoamines and/or aminouracils, in which indoles have general
 Vulcanicola rubber compound / 2236423
The invention relates to the production of vulkanizetas rubber compound, the vulcanizates on the basis of which have high resistance to thermal-oxidative aging
 Thermosetting composition / 2201947
The invention relates to thermosetting resin compositions, which can find use as coatings, adhesives, compounds, adhesives for laminates
 Polymer composition / 2186802
The invention relates to polymeric compositions used in the repair of oil and gas pipelines both in summer and winter conditions, the use of metal couplings, as well as casting compounds in electronics, electrical engineering, construction and other purposes
 Polymer composition / 2177012
The invention relates to polymeric compositions based on polypropylene and can be used in the production of plates, insulating coatings, films, fibers and other shaped articles
Rubber mixture modified with composition of ultra-high molecular weight polyethylene and magnesium nano-spinel / 2425851
Rubber mixture based on butadiene-nitrile rubber BNKS-18 is prepared. 2-5 pts.wt synthetic magnesium nano-spinel with particle size less than 100 nm is added to 10 pts.wt powdered ultra-high molecular weight polyethylene per 100 pts.wt rubber and then mixed for 2-3 minutes in a blade mixer. The obtained composition is added to the rubber mixture on rollers or rubber mixer. The rubber mixture also contains natural rubber, sulphur, N,N-diphenylguanidine, di-(2-benzothiazolyl)-disulphide, zinc oxide, aldol-α-naphthylamine, N-(4-hydroxyphenyl)-naphthylamine-2, N-(1,3-dimethylbutyl)-N-phenylenediamine-1,4, technical carbon P803, stearic acid, dibutyl phthalate.
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FIELD: chemistry. SUBSTANCE: binder contains the following (pts.wt): epoxy-novolak resin with epoxy equivalent weight of 169-181, containing 2.5-3.6 glycidyl groups per mol of the epoxy resin - 100, hardener - anhydride of methyl-endo-cis-5-norbornene dicarboxylic acid - 80-95, curing accelerator - 0.1-2.0, and target additives - 0.5-2.0. The binder has acceptable application life for producing fibre-glass. EFFECT: high shearing strength along the fibre and splitting strength along the fibre. 2 cl, 2 tbl, 3 ex
The invention relates to the field of production of epoxy resins for the production of high-strength profile fiberglass mainly used for electrical purposes. Oriented (unidirectional) profile fiberglass is produced by pultrusion, i.e. the continuous pulling impregnated with a binder of roving through a preheated temperature of the adhesive die plate of a given geometrical profile that defines the desired shape of the cross section and dimensions of the profile fiberglass. Profile fiberglass very promising material. Continuous production technology, the use of relatively cheap and available fillers, high feed rate, the use of a binder without solvents, a high level of mechanical and electrical properties, no need for machining - all this is of growing interest. Known epoxy binder for composite materials, including epoxygenase resin, curing agent and curing accelerator in the following ratio of ingredients (weight%): epoxy resin ED-20-55, hardener - ISO-methyltetrahydrophthalic anhydride (out-MTHFA) 44,8, accelerator 0,2 (see Vasaputi, Kay. "Physico-mechanical properties of epoxy polymers and with whom ecoplastics", Kiev: Naukova Dumka, 1986, p.30-31, table 21). Known epoxy binder for composite materials, comprising (parts by weight): 100 epoxy Dianova resin ED-20 or ED-16, 60-80 hard-MTHFA and 1.0-2.0 accelerator curing - alkanolamine obtained by the interaction oxyruncidae compounds with aliphatic amines in the environment of aromatic solvent (EN 2327718, C1, CL C08L 63/02, C08G 59/50, B32B 27/38, C07C 213/04; 09.01.2007). Known bathroomvanities epoxy binder comprising epoxygenase resin ED-20, anhydrite hardener - from-MTHF, the basic catalyst is 2,4,6-Tris-(dimethylaminomethyl) phenol (yn-606/2) (Ustinov A.M., Oleinikov Y.V., Lipsky, VA, Belobrov NS, Vorobyev, AN. "Bathroomvanities epoxy binder. Plastic masses". 1983.3, p.34). In addition to the epoxy resin, anhydrous curing agent and curing accelerator (catalyst), epoxy resins may contain various additives target. Known epoxy resin composition for profile fiberglass electrical components, comprising (wt.%): epoxy Dianova resin 45,2-51,4; anhydrite hardener 39,1-41,2 - from-MTHFA; a curing accelerator HOS-1 - 1,8-naphthoylene-1',2'-benzimidazole 06-1,7 and the target additive - flexibilization, namely epoxyether based on epoxy resins and synthetic fatty acids (C10(5,7-15,1) (SU A, CL C08L 63/02, B32B 27/38, H1B 3/40; 25.04.1980). Known epoxy binder for fiberglass, includes the following components at a ratio (wt.%): 56,11-56,42 epoxy resin ED-22; 42,10-42,29 from MTHF; 0,79 up-606/2 and 0.5 to 1.0 additives target - policyfailure ester of boric acid (RU 2339662 C1, CL C08L 63/02, C08G 59/42, C08G 79/08, R32B 27/38; 30.05.2007). The closest to the claimed invention are binders for composite materials based on epoxy resin ED-20, hardener - from-MTHFA and accelerator curing - triethanolamine - for impregnation of glass fiber roving (EN 2220049, CL B32B 17/04, E04C 5/07, publ. 12.27.2003) and equally similar binder for core fiberglass brand WBS e TU 2296-051-05758799-00, in which the accelerator is used up-606/2 (prototype). Common to all of the above binder is the use of low-molecular Dianova epoxy resin (ED-16, ED-20 or ED-22) and out-MTHFA as the anhydrous compound. The differences in the choice of an amine accelerator are not principal. Significant disadvantages of the above technical solutions are low viability of the binder, the rapid increase of viscosity after the introduction of the accelerator and poor manufacturability associated with the presence of sharp thermal spike during curing, due to chemical PR is the nature of the binder components. In addition, reinforced roving products have a low resistance to shear along the grain, which limits their use. The structure of the profile of the glass determines the strong anisotropy of properties. Having a high tensile strength and bending, profile plastics have low tensile shear when the separation of fibers from each other, as in this case the filler is almost "not working". Profile plastics usually consist of unidirectional glass fibers and binder, but may have a more complex scheme of reinforcement. To increase the strength to cut along the grain developed various types of transverse reinforcement. In particular, to increase the strength of the rotor slot wedges developed a special technology of hardening their side faces. However, this technology allows to increase the strength of the slice by only 5-10%, which does not meet the technical requirements of the slot wedges. Middleware prototype, even with transverse reinforcement, do not provide a profile fiberglass with the required strength in a longitudinal section (30-50 MPa)that is necessary to ensure that they can be used as slot rotor wedges for traction motors of electric locomotives and other electric rolling stock. Present from retina aimed at creating technologically advanced epoxy resin with an acceptable viability for profile fiberglass, with high tensile shear and other improved physical and mechanical characteristics. This goal is achieved by the use of epoxy binder comprising epoxydodecane resin with an epoxy equivalent weight 169-181, containing 2,5-3,6 glycidyloxy groups per 1 mol of epoxy resin, anhydrous hardener, which apply anhydride methyl-endo-CIS-5-norbornenedicarboxylic acid, a curing accelerator and target additive in the following ratio of components, parts:
As the curing accelerator used nitrogen-containing compounds selected from the group comprising tertiary amines (benzyldimethylamine), Quaternary ammonium salt (triethylmethylammonium), Mannich bases (Tris-(dimethylaminomethyl)phenol), alkanolamine (triethanolamine), imidazole derivatives (1(2)-Mei), etc. Target additive is an excipient type antiadhesives (oleic CIS the PTA, polypropylenglycol (Laprol)); not exotropia fillers (up to 3%), such as titanium dioxide; plasticizers; synergistic coscarelli; regulators curing etc. Example 1. The roving brand RBN-13-1260-76 on THE 5952-045-05763895-2004 of aluminosilicate glass treated with sizing, No. 76, which is a variance-based and polyterpenes, in primary forms aminosilane of AGM-9, impregnate at 30-35°C binder, the composition of which is given in table 1. Impregnated roving stretch through the heated die plate length of 60 cm at a rate of 0.39-0.45 m/min pipe Size Spinneret 11×4. The temperature of the first zone of the die 130-140°C, the second zone 165-180°C. the resulting laminate is cut into segments of length 1.5 m and placed in an oven for an additional heat treatment for 6-8 hours at 180±5°C. The test results of the finished profile of the laminate are shown in table 2. Examples 2 and 3 On the technology described in example 1, manufactured fiberglass according to a formulation shown in table 1. The corresponding results are given in table 2. Test cases 1. Technology of example 1 is made fiberglass-based Dianova epoxy resin ED-20 and offer anhydride methyl-endo-CIS-5 norbornenedicarboxylic acid. 2. Similarly produce fiberglass-based p is edlagaemoe epoxydodecane resin brand DEN-431 manufactured by Dow Chemical), USA, and ISO-methyltetrahydrophthalic anhydride (ISMGF). Recipe binders are shown in table 1, and properties of the obtained materials in table 2. In addition to fiberglass, made in the above examples, for an objective comparison of the properties was also made on the same technology and the same size plastic-based binder used in industry in the manufacture of specialized fiberglass brand WBS E. Recipe binders are shown in table 1, and properties of plastics in table 2. Data analysis table 2 shows that only the combination of polyfunctional epoxydodecane resin with anhydride methyl-endo-CIS-5 norbornenedicarboxylic acid allows one to obtain high strength in longitudinal section for relevant fiberglass, which, in addition, have high values of other physical-mechanical characteristics and high resistance to heat. Use Dianova resins (reference example 1) in combination with the above anhydride or use epoxydodecane resin commonly used in the industry ESMTPA (control example 2) does not give the desired result. 1,5
1. Epoxy binder for fiberglass, including epoxy resin, anhydrous curing agent, the curing accelerator and the target additives, characterized in that as epoxy resin it contains epoxydodecane resin with an epoxy equivalent weight 169-181, containing 2,5-3,6 glycidyloxy groups per 1 mol of epoxy resin and hardener includes anytimethis-endo-CIS-5-norbornenedicarboxylic acid in the following ratio of components, parts:
2. Hardened profile fiberglass obtained by pultrusion-based roving and a binder according to claim 1.
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