• 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:
    1. A method for producing a seamless coating on the periphery surface of a cylindrical drum body by applying a polymer material on parts of the peripheral surface of the case followed by surface coating, characterized in that, in order to simplify the process and to improve the quality of the coating, a surface coating will be applied, and the surface will be applied. porous material with open vapors and a thickness of 2,537,5 mm and the subsequent introduction of a liquid containing a polyurethane resin or butyl rubber, or thermosetting oxide or polyester resin, or polyisobutylene rubber, and curing the coating by heating it. 2. The method according to claim 1, wherein the liquid containing polyurethane resin or butyl rubber, or thermosetting epoxy or polyester resin, or isobutylene rubber, is introduced during the rotation of the drum body. 3. Method according to paragraphs. 1 and 2, in that the introduction of a liquid containing polyurethane g resin or butyl rubber, sludge and a thermosetting epoxy resin or polyester resin, or isobutylene rubber, and curing from the coating take place simultaneously. 4. Method according to paragraphs. 1-3, about t l and h ay u and, so that the polymeric material contains 5-15 pores to 23.4 mm.
    公开号:SU1109059A3
    申请号:SU762319105
    申请日:1976-01-27
    公开日:1984-08-15
    发明作者:Джонатан Адамс Ричард
    申请人:Белойт Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to methods for producing seamless coatings on cylindrical drums.
    A known method for producing a seamless coating on a portion of the peripheral surface of a cylindrical drum housing is by applying a polymer material on a portion of the peripheral surface of the housing, followed by processing the coating t1 3.
    In the manufacture of plastic containers, fiber-reinforced coatings, it is difficult to apply plastic to the drum in such a way as to obtain a seamless, uniform in properties coating.
    The purpose of the invention is to simplify the process and improve the quality of the coating.
    The goal is achieved in that according to the method of obtaining a seamless coating on a portion of the peripheral surface of a cylindrical drum housing by applying a polymer material on a portion of the peripheral surface of the housing with a subsequent treatment of the coating, the coating is applied by placing a porous material with open pores and a thickness of 2 on the housing surface 5-37.5 mm and the subsequent introduction of a liquid containing a polyurethane resin or butyl rubber, or a thermosetting epoxy or polyurethane resin, or isobutylene rubber and curing the coating by heating it.
    Fluid containing polyurethane resin or butyl rubber, or thermosetting epoxy or polyester resin, or isobutylene rubber, is injected during rotation of the drum body.
    The introduction of a liquid containing a polyurethane resin or butyl rubber, or a thermosetting epoxy or: a polyester resin, or isobutylene rubber, and curing the coating is carried out simultaneously.
    The polymer material contains 515 pores by 25.4 mm.
    A solid layer of open-cell foam can be of any shape and composition. The pores can be of any suitable size. The preferred dimensions are approximately 10 pores per linear inch. The foam used may be rigid or flexible.
    090591
    As examples of organic foams, there may be polyurethane, polystyrene, polyvinyl chloride, polyethylene, and the like. In these foams, foaming can be carried out by chemical or physical means, by usual injection of agents containing pentane, 1,1 azobisformamide, and the like. 10 For example, suitable foam rubber is produced by blowing air into a rubber latex, followed by vulcanization, or by introducing ammonium carbonate or sodium carbonate into J5 strongly plasticized rubber compound, so that, under the heat of vulcanization, ammonia or carbon dioxide is produced, which expand the rubber, and the required 20 are formed. Christ mass as p-az before the start of vulcanization.
    Examples of inorganic foams include foam glass (for example, based on sodium silicate 25 and mineral fiber from rocks), vitreous ceramic foam materials, foam metals, and the like. Preferred are large 3Q absorption capacities for organic liquids, for example so that the foam absorbs a weight amount of organic liquid equal to the minimum weight of the foam. It is also possible to use foams with a greater or lesser abdominal capacity, depending on the type of drum coating required in each particular case.
    40
    At present, preferred polymers are organic polymers. Such foams may be thermoplastic or thermosetting. Thermosetting foams are preferred as well as flexible foams. Honeycomb foam sheets may be used, for example, which have a one-piece coating on one side. Such a coating may be worn adjacent to the outer parts of the cylindrical surfaces of the drum. For coatings obtained directly on the drum, rigid 55 foams are more technological, i.e. they are more easily machined than flexible ones.
    The most preferred foam is polyurethane foam. This polymer is obtained by condensation of a polyisocyanate with a substance containing hydroxyl groups, for example, with a polyhydric alcohol or drying oil (reacting hexamethylene diisocyanate with 1,4-butanediol). The molecule of this polymer contains, in addition to the numerous urethane or free isocyanate groups typical of it, a number of other components. In addition, a thermoplastic polymer can be made thermoset. In particular, if polyurethane foam is used, the organic liquid used to make the coating of the drum contains a molding polyurethane resin or elastomer. Polyurethane foams are usually obtained by treating a polyester, for example polypropylene glycol, with a diisocyanate in the presence of water and a catalyst. As a result of the interaction of the isocyanate groups with water, crosslinking occurs and carbon dioxide is released, which causes foaming. Trifluoromethane or the like can be used as a blowing agent.
    Polyurethane elastomers are obtained by reacting polyisocyanates with linear polyesters or polyethers containing hydroxyl groups. Prepolymers are used as intermediates, and crosslinking is carried out by reacting with compounds capable of cleaving two hydrogen ions or containing diamino or dicarboxyl groups. For special purposes, they can be modified with various other polymers or substances, such as castor oil, as well as fillers and enhancers.
    Polyurethane films are obtained from prepolymers containing isocyanate groups (toluene and 4,4-diphenylmethane diisocyanates) and substances containing hydroxyl groups, for example polyhydric alcohols and drying oils. These films are thermosetting and cure when heated.
    The choice of polyurethane elastomer or polymer film for this
    the cementing phase depends on the type of drum coating required.
    Curved foams are usually formed into curved films with a desired radius of curvature approximately equal to the curvature radius of the outer part of the cylindrical surface of the drum for which the coating is made, and then these curvilinear foam films are put on the said cylindrical surfaces.
    Flexible foam is usually applied in the form of sheets, the shape of which is fitted to the shape of the cylindrical surface of the drum when the coating is applied on it.
    Putting on the coating can be completed by wrapping the foam around a cylindrical surface and bonding or even overlapping the ends by stitching or another similar method, preferably using threads of a composition close to that of her foam. It is possible to use glue or similar substance for bonding the cenoplast to a cylindrical surface.
    The fluid introduced into the porous structure worn on the cylindrical surface of the drum contains an organic resin or starting materials for its formation.
    The liquid turns into a solid organic resin in a relatively short period of time. This transformation is usually carried out in air at pressure and ambient temperature, although it is preferable to use elevated temperatures to accelerate the cure, which is converted from the original liquid form in solid form in the temperature range of approximately 50-250 ° C for a period of time, typically less than 2 hours, preferably 30-15 minutes, although longer and shorter periods are acceptable. remeni, as well as higher and lower temperatures. The resin, after being converted into a solid form, can be either thermoplastic or (preferably) thermoset.
    The starting fluid may consist essentially of 100% by weight of resin. The resin may be either already polymerized, or it may be the starting materials for the formation of the resin, for example, monomers or pre-polymers, the interaction of which will form a solid polymer. In accordance with another embodiment, the initial liquid may contain less than 100 weight. (calculated on the total weight) of the resin, in this case the difference between the total resin content and 100% by weight (according to the same calculation) is the liquid carrier in which the resin is dissolved or suspended (dispersed). In connection with the evaporation of the liquid carrier and its removal, when the resin goes from a liquid to a solid state and also due to shrinkage, it is preferable to use a liquid resin containing less than 50% by weight (calculated on the total weight). The original foam foam coating liquid may be applied as a melt at an elevated temperature. It is preferable to use the original liquid, which is suitable at ambient temperature and pressure, in order to avoid the need to heat the drum covered in foam, since this is difficult in the manufacture of coatings for large drums, such as those used in paper machines. In practice, conventional thermosetting or thermoplastic polymerization resins are applicable, including elastomers, filled systems, and the like. Examples include polyurethanes, polyethers, polysulfones, polyacrylates, polyvinyl polymers (including plastisols, phenol formaldehyde resole resins, melamine formaldehyde resins, epoxy resins, silicone resins, etc.), latexes and elastomer dispersions, for example, butadiene acrylonitrile (nitrile rubbers), styrene butadiene (e.g. GR-S, synthetic rubber obtained by copolymerization of butadiene with styrene), neoprene obtained from acetylene by converting it into vinyl acetylene, followed by combining with chlorides m hydrogen, butyl rubbers, obtained by copolymerization of isobutylene with a small amount of butadiene or isoprene, polysulfide rubbers, ethylene-propylene rubber, polyurethane elastomers, with silicone rubbers, fluorocarbon elastomers, etc. Cross-linking agents are usually sulfur peroxides or organic peroxides (for example, for vulcanization of rubber), divinylbenzene (styrene polymers), organic lerekis (polyethylene), dimethyl carbonate (cellulose), and the like. For curing, usually less than 5% by weight of this agent is added to the starting resin. Various rubber derivatives are applicable, in particular latexes or dispersions of chlorinated rubbers, such as parlon (the brand name of the chlorinated rubbers of the company is Hercules Wilmington, Delaware State), chlorinated polypropylene or cyclo-rubber, for example, plyolite (brand name of styrene-butadiene polymerization latexes and vinyl pyridine-pyridine, and vinyl pyridine-pyridine, and vinyl pyridine polymers, and vinyl-pyridine latexes and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers, and vinyl pyridine polymers and latex pyridiene polymers, and cyclo-plating rubber. Butadiene thermopolymerization latex firm Goodyear Tyr and Rabber), etc. The liquid carrier may be water or an organic liquid. Suitable volatile organic liquids are saturated monohydric alcohols, for example methanol, ethanol, isopropanol, normal butanol, and the like, esters, for example ethyl acetate, amyl acetate, and the like, hydrocarbons, for example aromatic hydrocarbons, derived from coal distillates. gums such as benzene, toluene, xylene, naphtha, white alcohol, kerosene, etc. chlorinated solvents, for example carbon tetrachloride, trichloroethylene, tetrachlorethylene, and the like, ketones, for example acetone, methyl ethyl ketone, and the like, ethers, aldehydes, and the like. Preferred resins are elastomers. At the drum, the thickness of the coating or coating layer is usually in the range of about 0.1-1.5 inches (2.54-38.1 mm), however, if necessary, both greater and smaller thickness can be used. Preferably, the foam and cementing phase are thermosetting (e.g., crosslinked). During the transition of a liquid containing resin or precursors to form a resin substance into solid
    While the drum is covered with foam-soaked with this liquid, the drum rotates at a speed of approximately 0.1–40 rpm. However, higher and lower speeds are acceptable. During the transition of the liquid to the solid state, when the drum rotates, at any moment in time only part of the cylindrical surface of the drum must be heated (if heat is applied). Conventional heat sources such as hot air, infrared heaters, stoves, and the like can be used. Preferably, during the transition of the liquid to the solid state, both rotation and heating are performed at the indicated temperatures, in each case the exact purpose of the temperature depends on the particular resin chosen and on the type of foam used.
    With the introduction of a liquid resin in the foam and the transition of a liquid into a solid state, there is a coarse relationship between the viscosity of the liquid and the pore size. The greater the viscosity of the fluid, the larger the pore size must be and / or the faster the speed of rotation of the drum must be to facilitate the coating manufacturing process.
    The process steps can be carried out sequentially. However, it is possible to carry out such a process in which the introduction of the source liquid in the foam and the conversion of the liquid into a solid resin occurs simultaneously. For example, the introduction of a liquid resin can be carried out in the longitudinal section of the drum, and curing (heating) in the second longitudinal section of the drum after the drum is rotated through a certain angle.
    After curing, the coating obtained directly on the drum can, if necessary, be machined (including sandblasting, grinding, turning on a lathe, etc.) to eliminate the smallest surface irregularities that may be on the drum coating, and to obtain a coating made directly on the drum, having a circle in a cross-section.
    FIG. 1 shows a schematic of a drum, on a peripheral top 90598.
    the ness of which is laid a layer of porous structure, cross section; in fig. 2 is the same with a layer of foam which rotates in a liquid containing an organic resin or starting materials for its preparation; in FIG. 3 - the same, with a layer of foam containing a cementing phase, formed from the specified liquid during rotation and simultaneous heating of the specified layer} in FIG. 4 shows an enlarged portion of the drum cover shown in FIG. 3, in FIG. 5 shows an embodiment of a porous structure.
    The preformed (Fig. 1), flexible, rigid, open-cell foam 1, consisting of an organic polymer, is fitted and fitted onto a portion 2 of the peripheral surface of the drum-3. The drum 3 is seated on a rotatable shaft 4. The drum 3 is placed in the bath 5 with a liquid containing an organic resin that turns into a solid resin. In this case, the foam layer 1 is impregnated with this liquid (Fig. 2).
    The drum 3 coated with the impregnated foam liquid is heated by heater 6 (FIG. 3), resulting in the formation of a solid cementing layer 7 over part of the surface 2 as the drum 3 rotates with the shaft 4. The foam layer 1 remains unchanged, it is distributed throughout cementing layer (or cementing phase) 7 and, as a rule, the same direction with him.
    The foam structure of the foam 1 (Fig. 4) serves as an amplifier and increases the mechanical strength and even the wear resistance of the cementing phase 7.
    A similar result can be achieved by using a foam having the structure shown in FIG. 5, where the individual lengths of the fibers 8 are bonded to each other at the points of contact by means of a sizing agent 9, for example, glue, resin or the like.
    Example 1. A sheet of rigid, thermosetting polyurethane foam with open pores approximately 1/7 inch thick (3.2 mm) is placed on the steel peripheral cylindrical surface of the drum, and the closing longitudinal (relative to the drum) edges of the sheet are sewn with polyurethane fiber. The foam contains approximately 10 pores per linear inch.
    The drum rotates at a speed of approximately 1-10 rev / min. On top of this foam, worn on the surface of the drum, slowly pour the liquid polyurethane on the resin until the foam is completely filled with liquid resin. The liquid used is commercially available under the trade name Adaprene (DuPont). The same results can be obtained using a liquid resin with the company name Cyanaprene (American Cyanamide).
    Then a foam layer saturated in this way is exposed to a heat source that selectively heats this layer to a temperature of approximately 210-240 ° F (99115 0). This heat acts for a time sufficient to completely transform this liquid resin into a solid one, which is O (blesses the foam layer and has the same direction as it. The foam layer structure remains unchanged. A strict inspection of the resulting layer shows that its structure is similar to that shown in Fig. 4, The obtained drum coating is distinguished by good hardness, flexibility, abrasion resistance, impact strength, and high adhesion to the underlying drum surface.
    EXAMPLE 2 A drum with a coating made according to Example 1 rotates at a speed of approximately 5-30 rpm, while parts of the peripheral surface of the drum are treated with abrasives to remove minor surface irregularities and achieve a regular circular cross section. The drum coating obtained exhibits the same properties as the coating obtained according to Example 1.
    Example 3. The procedure described in example 1 is repeated, but instead of liquid polyurethane, butyl rubber is used — a copolymer of isobutylene (97%) and isoprene (3%), sold under the brand name Injey Liquid Rabber (Ingey Chemical).
    EXAMPLE 4 The test procedure described in Example 1 is repeated, but instead of liquid polyurethane, liquid thermosetting epoxy resin is used — a solution of a mixture of Epicot 815 from Shell Oil (100 parts) and triethylene tetramine (10 hours).
    Example 5: The test procedure described in Example 1 is repeated, but a liquid thermosetting polyester resin is used instead of liquid polyurethane.
    Example The foam coating of the drum according to Example 1 is prepared. The drum is then placed horizontally so that its lower part contacts the bath containing an aqueous emulsion of isobutylene-type rubber, commercially available under the brand name Injei Butyl Latex (Injey Chemical). The emulsion contains heat-activated crosslinking agents and coagulants.
    The drum rotates around its axis at a speed of approximately 2 rpm. A set of infrared heaters acts on the upper part of the drum. After a butyl rubber coating is formed on the cylindrical surface of the drum (both in and on the foam layer), the operation is completed and the coated coating drum is removed.
    figg
    fig.Z
    权利要求:
    Claims (4)
    [1]
    1. METHOD FOR PRODUCING SEAMLESS COATING ON THE PART OF THE PERIPHERAL SURFACE OF THE CYLINDRICAL DRUM HOUSING by applying polymer material to parts of the peripheral surface of the housing with subsequent processing of the coating, characterized in that, in order to simplify the process and improve the quality of the coating, the coating is applied by laying on the surface material with open pairs and a thickness of 2.5
    37.5 mm and the subsequent introduction of a fluid containing polyurethane resin or butyl rubber, or thermosetting epoxy or polyester resin, or isobutylene rubber, and curing the coating by heating it.
    [2]
    2. The method according to p. ^ Characterized in that a liquid containing a polyurethane resin or butyl rubber, or a thermosetting epoxy or polyester resin, or isobutylene rubber, is introduced during rotation of the drum body.
    [3]
    3. The method according to PP. 1 and 2, characterized in that the introduction of a liquid containing a polyurethane resin or butyl rubber, or a thermosetting epoxy or polyester resin, or isobutylene rubber, and curing of the coating are carried out simultaneously.
    [4]
    4. The method according to PP. 1-3, on the basis of the fact that the polymer material contains 5-15 pores per 25.4 mm.
    SU, m 1109059
    1 1109059 1
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1109059A3|1984-08-15|Method of obtaining seamless coating on portion of peripheral surface of drum cylindrical body
    US4863650A|1989-09-05|Process for molding and vulcanizing tires and other rubber articles
    EP0616271B1|2006-06-07|A liquid metering and coating device
    GB1565881A|1980-04-23|Method for making structural foams with facing sheets
    US4224376A|1980-09-23|Process of manufacturing a heat-resistant composite sheet
    GB1592926A|1981-07-15|Process for making coated covering material
    US5384337A|1995-01-24|Poromeric material having uniformly distributed electrets for maintaining an electrostatic charge
    US3814791A|1974-06-04|Method of preparing pile surfaced products from epoxy resin
    EP0547249A4|1994-02-02|
    US4112178A|1978-09-05|Aqueous polyurethane undercoats
    US3622412A|1971-11-23|Method of covering volume-compressible articles
    US3654066A|1972-04-04|Manufacture of a porous polymeric sheet
    SU718015A3|1980-02-25|Panel making method
    KR970011788B1|1997-07-16|Method for producing interior finishing material in atomobiles
    US3861937A|1975-01-21|Method of producing suede-like synthetic leathers
    US4218505A|1980-08-19|Production of polyurethane-split leather laminate
    US2906642A|1959-09-29|Process for forming composite cellular structures
    US5151240A|1992-09-29|Leather-like material having excellent water vapor permeability and suppleness and its manufacture
    HU215789B|1999-02-01|Surface-polishing band and method for producing such band
    US1435721A|1922-11-14|Abrasive structure and method of making same
    US2065942A|1936-12-29|Grinding wheel
    US4256523A|1981-03-17|Method for the manufacture of a pipe
    Kuzuya et al.1995|A Novel Method for Introduction of Plasma-Induced Hydrophilicity on Polyethylene-Naphthalate
    US6630048B2|2003-10-07|Process for obtaining or repairing a die that does not need end finishing
    EP3478484B1|2021-07-21|Methods for treating inner liners and tires containing such inner liners
    同族专利:
    公开号 | 公开日
    ES444614A1|1977-05-01|
    MX144196A|1981-09-10|
    CA1029227A|1978-04-11|
    FI58526B|1980-10-31|
    AR210483A1|1977-08-15|
    US3950833A|1976-04-20|
    FI58526C|1981-02-10|
    GB1541741A|1979-03-07|
    PL111033B1|1980-08-30|
    FI753725A|1976-07-29|
    IT1054965B|1981-11-30|
    SE415389B|1980-09-29|
    JPS51105370A|1976-09-17|
    DE2602217A1|1976-08-26|
    FR2299140B1|1981-03-20|
    BR7600466A|1976-08-31|
    DE2602217C3|1981-01-08|
    ES450899A1|1977-09-01|
    DE2602217B2|1980-05-08|
    FR2299140A1|1976-08-27|
    SE7600579L|1976-07-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2287768A|1940-05-04|1942-06-30|Du Pont|Roller having surface of sponge rubber knobs|
    US2393953A|1944-04-10|1946-02-05|Dayton Rubber Mfg Co|Spinning cot for textile fiber processing|
    DE1135930B|1960-04-28|1962-09-06|Luise Beutel|Dampening roller|
    US3536564A|1967-02-28|1970-10-27|Du Pont|Process for preparing a composite article|
    DE1957728A1|1968-12-04|1970-06-18|Joseph Polidori|Cleaning roller for printing plates|
    US3635158A|1969-10-06|1972-01-18|William D Budinger|Roller for printing press|
    US3707752A|1970-10-28|1973-01-02|Beloit Corp|Roll covering|
    IL40598D0|1971-10-21|1972-12-29|Reuter Maschinen|Anti-static conveyor belt rollers|DE2548273C2|1974-10-29|1988-10-13|Nippon Paint Co., Ltd., Osaka, Jp|
    US4138965A|1977-11-14|1979-02-13|American Can Company|Apparatus for delivering metered amounts of varnish to the surface of a can, or the like|
    US4287649A|1978-08-04|1981-09-08|Truly Magic Products, Inc.|Roller construction for paper feeding|
    GB9024596D0|1990-11-13|1991-01-02|Sherman Aaron|Foamed products|
    JP3409984B2|1996-11-14|2003-05-26|東京エレクトロン株式会社|Semiconductor device and method of manufacturing semiconductor device|
    US6305045B1|1999-07-08|2001-10-23|Newell Operating Company|Paint supply and finishing system|
    US8550968B2|2005-11-11|2013-10-08|Bridgestone Corporation|Developing roller and imaging apparatus comprising the same|
    US8805241B2|2011-07-27|2014-08-12|Xerox Corporation|Apparatus and methods for delivery of a functional material to an image forming member|
    US8805262B2|2011-11-01|2014-08-12|Xerox Corporation|Apparatus and methods for delivery of a functional material to an image forming member|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/544,675|US3950833A|1975-01-28|1975-01-28|Roll covering composition|
    [返回顶部]