• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Process for producing elastomer materials which are abrasion resistant in the heat, based on polyurethanes and polyoxides, by reacting aliphatic or aromatic diisocyanates, low molecular polydiols or polydiamines and hydroxyl-containing polyesters or polyethers with a molecular weight between 800 and 5000, especially between 2000 and 3000, in equimolar quantities and in liquid phase, characterized by performing the reaction in the presence of rubber powder having diene units incorporated therein, the powder being dispersed in the reaction mass in an amount of 20%-50% by weight, the reaction being carried out in the presence of sulfur or a peroxide, and the rubber powder having a particle size between 5 and 500 mu , the polyurethane reaction mass having a surplus of double bonds capable of cross-linking and casting the elastomer so produced from the liquid mass into molds. Tires made from the elastomers according to the invention are of excellent properties in their tread surfaces.
    公开号:SU1166665A3
    申请号:SU792734157
    申请日:1979-03-01
    公开日:1985-07-07
    发明作者:Тимм Тис；Хартвиг Клаус
    申请人:Феникс Аг (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the manufacture of rubber products, in particular the manufacture of tire treads from polyurethane compositions, and can be used in the automobile and other areas of industry. The purpose of the invention is to increase the cost of protectors to abrasion when braking with blocking. Example 1. Polycaprolactone s.d.-terminal OH groups melt at 100-110 ° C, mixed with a protruder and then dispergir-cosiness in the resulting melt using a high-speed knife mixer (rotation speed about 10,000 rpm) all the amount of powdered rubber with additive vulcanizing agents (sulfur, N-ethylphenyl-dithiocarbamate, zinc oxide active). In order to prevent possible foaming of the mass in the period prior to the onset of polymerization, about 0.5% of antifoaming agent may be added to it. In addition, the initial composition is degassed and dehydrated. using vacuum (0.2 bar) for 30 minutes in a reactor dp for preparing a prepolymer. Thereafter, the diisocyanate is added to the composition at 120 ° C and the mixture is kept until the final product is obtained (20 minutes). End re. Stocks are determined by a decrease in temperature after reaching a maximum and due to the heat generated during the exothermic polyaddition. The mixture is discharged from the reactor and, at 80-100 ° C, microdiol (butene-2-diol-1.4.) Is introduced into it with stirring. Depending on the temperature, the viability of the initial composition is 1-10 minutes. The finished composition is then poured into a mold heated to. Time spent in the form of 20 minutes. The product is then additionally annealed at 100 ° C for 12 hours (calculated on a maximum wall thickness of 10 mm). As the original composition using the composition of the following composition, parts by weight:
    Polycaprolactone with terminal OH groups 1,4-Diphenylmethane diisocyanate Buten-2-diol-1,4
    Oily surface. Material at wear t no7, 8-9.2 with yarns 652 Powdered rubber Sulfur Zinc oxide active, N-ethylphenyl-dithiocarbamate zinc 2,2-Methylene-bis- (4metsh1-6-tert-butylphenol) Stearic acid 1.5 In tab. Figure 1 shows the results of wear tests when simulating braking with the brakes on as compared with PU elastomers of a different structure, as well as with conventional high-quality rubber protectors. Laboratory tests were carried out on samples in the form of strips of 6 mm thickness, in order to obtain objective characteristics of the material regardless of the tire design, its profile, the properties of the testing machine, and the qualities of the test driver. The test device consists of a rotating steel drum, to which the specimen clamped in the holder, while rotating the drum at a speed of 75 km / h, is sharply pressed under a load of 3100 N, and the drive is turned off using a locking device. This process is repeated five times. The stopping distance is measured and its average is taken. In addition, an estimate of the sample wear characteristics is performed and the total loss (in grams) due to material abrasion is determined. From the presented data, it follows that in terms of wear resistance, the tread of automobile tires produced according to the invention is on one. level with high quality treads. metal cord tires of passenger cars. . Table 1 Contains dry isocyanurate of small particles of 7.9 Vulcanisation in a vvde, in the form of dry ruem with particulate sulfur. The size of the small (from small to large) 4,2Predlag- In the form of dry ma, including very small shcha- pumps particles of the filler powder, 4 different rubber Rubber In the form of very protectors of small particles 0.2 in table. 2 shows the physicomechanical characteristics of samples of the material obtained according to the invention, and samples of rubber. Table 1 Physical-mechanical in the course of its design and development of the tektor Tensile strength, Mtsa 2316 Relative elongation at break,% Module 100%, MPa 3.91, Size 10, 89, nor 300% , MpA Hardness according to 80.065, Shore A Rebound elasticity at% 38.028i Breaking strength of the specimen with a Grieve-notch, kN / m 40 - 39 Glass melting temperature С -21 -30 tpM, С Logarithmic decrement (Density, g / cm Example 2. Example 1 is repeated, however, instead of 4.3.9 parts by weight of 1, L-diphenylmethane diisocyanate, 38.9 parts by weight of 1,5-naphthypendiisocyanate are used. 3. Example 1 is repeated, but 58.8 parts by weight of diisocyanate-3, 3-dimethyl-diphenylmethane are used as diisocyanate ... Example 4. Example 1 is repeated, and microdiol instead of butandiol and 12.3 parts by weight of allyl ether 1 3 dioxy-2-y) opanol allyl ether. Example 5. Soetav kszhpognitsii, mac.ch .: Macrodiol - polycaprolactone, (mol.m. 2000) e two primary OH-rpyirpam90, 00, Acrylonitrile copolymer and butadiene e with an acrylonitrile content of 16.5% Yol.m. 2000) with two terminal OH groups; 10.00 Diisocyanate — 1,4 diphenylmethane diisocyanate;
    Microdiol - butanediol-1, 48.65
    Powdery
    rubber35,00
    Vulcanizing mixture:
    Sulfur, 60
    zinc oxide active 1.20
    Zinc N-ethylphenyl dithiocarbamate
    2,2-Methylene bis- (4methyl-b-tert-butylphenol),
    Stearic acid
    权利要求:
    Claims (1)
    [1]
    - METHOD FOR PRODUCING CAR TIRE PROTECTORS by casting a pre-urethane composition into a mold followed by curing by heating, characterized in that, in order to increase the tread resistance to abrasion during braking with blocking, the composition is used as a polyurethane composition, parts by weight:
    Polycaprolactone mol.m. 2000 100.00
    Aromatic diisocyanate 38.90-58.80
    Powdered rubber containing diene groups '20 -50 wt.% 35.0
    A low molecular weight diol selected from the group consisting of butene-2-diol 1,4 and allyl ether
    1,3-dioxo-2-propanol * 8.65-12.30 Sulfur 0.60 Active Zinc Oxide 1.20 Zinc N-Ethylphenip-Dithiocarbamate 0.23 2,2-Methylene-bis- (4methyl-6-tert-butyl-phenol) . 0.50 Stearic acid 1,50
    SU "" 1166665
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE2808668A1|1979-09-06|
    JPS54124100A|1979-09-26|
    FR2418803A1|1979-09-28|
    US4225683A|1980-09-30|
    FR2418803B1|1984-08-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1071948B|1957-04-09|1959-12-24|Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk|Process for the production of high molecular weight crosslinked plastics|
    US3259599A|1961-07-31|1966-07-05|Boeing Co|Non-press curing of polyether type polyurethanes with butadiene acrylonitrile copolymer|
    DE1215362B|1962-05-05|1966-04-28|Koelnische Gummifaeden Fabrik|Process for the production of crosslinked polyurethane moldings with improved dynamic properties|
    US3663469A|1968-11-07|1972-05-16|Wertex Anstalt|Particle-containing elastic polyurethane layer|
    US3846163A|1971-05-17|1974-11-05|D Kest|Method of making elastomer-based pressure sensitive adhesive coated article|
    US3755241A|1971-06-30|1973-08-28|Bendix Corp|Potting compound and method of potting|
    JPS5425055B1|1971-07-05|1979-08-25|
    US3806558A|1971-08-12|1974-04-23|Uniroyal Inc|Dynamically partially cured thermoplastic blend of monoolefin copolymer rubber and polyolefin plastic|
    US3980595A|1973-02-26|1976-09-14|The Firestone Tire & Rubber Company|Polyurethane elastomers modified with hydrocarbon rubber|DE2835398C2|1978-08-12|1985-05-02|Phoenix Ag, 2100 Hamburg|Pneumatic tires made of pourable material that hardens to elastic plastic|
    US4933373A|1989-04-06|1990-06-12|Minnesota Mining And Manufacturing Company|Abrasive wheels|
    US6008312A|1995-12-01|1999-12-28|Hokushin Corp|Method for producing millable polyurethanes and polyurethane elastomers|
    EP0783009B1|1995-12-01|2005-01-26|Hokushin Corporation|Method for producing millable polyurethanes and polyurethane elastomers|
    EP0860486A1|1997-02-20|1998-08-26|Procoat Aktiebolag|Composition for coating, sealing and protection purposes|
    ES2138901B1|1997-03-21|2000-09-01|Betere Fab Lucia Antonio|CONTINUOUS PROCEDURE FOR THE MANUFACTURE OF LATZ-POLYURETHANE FOAMS.|
    ES2128994B1|1997-05-28|2000-02-01|Betere Fab Lucia Antonio|POLYURETHANE FOAM INCLUDING MICRONIZED RUBBER.|
    ES2134141B1|1997-06-10|2000-04-01|Betere Fab Lucia Antonio|POLYISOCIANATE AND RUBBER BASED MATERIAL AND ITS APPLICATIONS.|
    GB0620091D0|2006-10-11|2006-11-22|Bowers Frank|Improved porous polymeric compositions|
    EP2094789A1|2006-11-15|2009-09-02|Basf Se|Layer materials with improved adhesion comprising elastic polyurethane binder and plastics granules|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782808668|DE2808668A1|1978-03-01|1978-03-01|PRODUCTION OF ELASTOMERS FROM HETERODISPERSIC SYSTEMS IN REACTION CASTING|
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