US20140010484A1 - Slide bearing comprising a primer system as adhesion promoter - Google Patents

Slide bearing comprising a primer system as adhesion promoter Download PDF

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Publication number
US20140010484A1
US20140010484A1 US13/931,010 US201313931010A US2014010484A1 US 20140010484 A1 US20140010484 A1 US 20140010484A1 US 201313931010 A US201313931010 A US 201313931010A US 2014010484 A1 US2014010484 A1 US 2014010484A1
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United States
Prior art keywords
canceled
microns
slide bearing
layer
primer
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Abandoned
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US13/931,010
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English (en)
Inventor
Olaf Schmitjes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Performance Plastics Pampus GmbH
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Saint Gobain Performance Plastics Pampus GmbH
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Application filed by Saint Gobain Performance Plastics Pampus GmbH filed Critical Saint Gobain Performance Plastics Pampus GmbH
Priority to US13/931,010 priority Critical patent/US20140010484A1/en
Assigned to SAINT-GOBAIN PERFORMANCE PLASTICS PAMPUS GMBH reassignment SAINT-GOBAIN PERFORMANCE PLASTICS PAMPUS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHMITJES, OLAF
Publication of US20140010484A1 publication Critical patent/US20140010484A1/en
Priority to US15/136,207 priority patent/US10113588B2/en
Priority to US16/144,164 priority patent/US10563696B2/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/203—Multilayer structures, e.g. sleeves comprising a plastic lining
    • F16C33/206—Multilayer structures, e.g. sleeves comprising a plastic lining with three layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04—Homopolymers or copolymers of ethene
    • C09J123/08—Copolymers of ethene
    • C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C09J123/0892—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms containing monomers with other atoms than carbon, hydrogen or oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J127/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers
    • C09J127/02—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J127/12—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Adhesives based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09J127/18—Homopolymers or copolymers of tetrafluoroethene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/28—Metal sheet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/203—Multilayer structures, e.g. sleeves comprising a plastic lining
    • F16C33/205—Multilayer structures, e.g. sleeves comprising a plastic lining with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/208—Methods of manufacture, e.g. shaping, applying coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/06—Coating on the layer surface on metal layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials
    • C09J2400/16—Metal
    • C09J2400/163—Metal in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2427/00—Presence of halogenated polymer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/02—Plastics; Synthetic resins, e.g. rubbers comprising fillers, fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/30—Fluoropolymers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/30—Fluoropolymers
    • F16C2208/32—Polytetrafluorethylene [PTFE]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
    • F16C2208/20—Thermoplastic resins
    • F16C2208/58—Several materials as provided for in F16C2208/30 - F16C2208/54 mentioned as option
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2223/00—Surface treatments; Hardening; Coating
    • F16C2223/30—Coating surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/40—Material joints with adhesive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/60—Thickness, e.g. thickness of coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/94—Volume
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor

Definitions

  • the disclosure relates to a slide bearing comprising a metal support, a primer layer, an adhesive layer, and a sliding layer.
  • the primer layer includes a silanol based oligomeric condensate.
  • Maintenance-free slide bearings which comprise a layer structure having a metallic support material, an intermediate layer and a sliding layer applied thereto have been known for a long time in a variety of forms from the prior art and are used in a wide variety of technical fields, for example in the field of automotive engineering.
  • EP 0 394 518 A1 describes a multilayer slide bearing material in which the metallic support material preferably consists of cold-rolled steel on which a layer of a copolymer of perfluoro(alkyl vinyl ether) and tetrafluoroethylene has been applied as intermediate layer.
  • a sliding layer composed of a PTFE compound material is in turn applied to the intermediate layer.
  • the intermediate layer has the function of establishing firm adhesion of the sliding layer to the support material.
  • the surface of the metallic support material in this known slide bearing material has to be pretreated in a suitable manner by wet chemical means. The best results appear to be achieved by chromating of the surface of the metallic support.
  • this process is problematical for a variety of reasons, including environmental issues and others. As such, there is a continued need for improved maintenance free slide bearings.
  • a slide bearing can include a metal support, a primer layer, an adhesive layer applied directly thereto, and a sliding layer applied to the adhesive layer.
  • the primer layer can include an oligomeric condensate of at least one silanol selected from the group having the formula:
  • the moieties R 1 and R 2 can be the same or different.
  • the moieties R 1 and R 2 can be selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, and a functionalized alkyl group R′—(CH 2 ) z —, wherein z is at least 1.
  • z can be 1, 2, 3, 4, or 5.
  • z is not greater than 10, such as not greater than 8, not greater than 7, not greater than 6, not greater than 5, not greater than 4, or not greater than 3.
  • the adhesive layer can include perfluoroalkoxyethylene (PFA), tetrafluoroethylene-perfluoro(methyl vinyl ether) copolymer (MFA), ethylene tetrafluoroethylene (ETFE), tetrafluoroethylene-hexafluoropropylene (FEP), and any combination thereof.
  • PFA perfluoroalkoxyethylene
  • MFA tetrafluoroethylene-perfluoro(methyl vinyl ether) copolymer
  • EFE ethylene tetrafluoroethylene
  • FEP tetrafluoroethylene-hexafluoropropylene
  • a method for producing a slide bearing includes applying a primer liquid onto a metal support.
  • the primer liquid can include at least one silanol or an oligomeric condensate of at least one silanol.
  • the silanol can be selected from the group having the formula
  • the method can further include drying the primer liquid to form a primer layer.
  • the method can further include applying an adhesive precursor onto the primer layer to form an adhesive layer.
  • the method can include applying a sliding layer onto the adhesive layer.
  • FIG. 1 shows an exemplary slide bearing in schematic sectional view
  • FIG. 2 shows a comparison graph of adhesive strength tests on slide bearings according to an embodiment.
  • a slide bearing can include a metal support, a primer layer, an adhesive layer applied directly thereto, and a sliding layer applied to the adhesive layer, in which adhesion of the sliding layer to the support material is ensured over the long term. Moreoveor the method of forming the slide bearing can be without use of ecologically problematical processes for surface pretreatment.
  • FIG. 1 The structure of an exemplary slide bearing is shown in FIG. 1 .
  • the metal support is denoted by 1
  • 2 denotes the primer layer
  • 3 denotes the adhesive layer
  • 4 denotes the sliding layer applied thereto.
  • the intermediate layer 3 comprises a primer layer which can include an oligomeric condensate of at least one silanol.
  • the silanol features a polar moiety and a organic residue moiety.
  • the polar moiety that has an affinity to adhere to support materials, such as metal support 1 .
  • the polar moiety of the silanol may condense or oligomerize to form a network or a sheet which increases the adhesion to the metal support.
  • the organic residue moiety has an affinity to interact with the adhesive layer 3 depending from type, length, and physical-chemical properties of the organic residue. For example, the organic residue can interact with the adhesive layer through van-der-Waals forces, covalent bonds, or a combination thereof.
  • silanols that form primer layer 2 can be selected from the group having the formula:
  • the moieties R 1 and R 2 can be the same or different.
  • the moieties R 1 and R 2 can be selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, and a functionalized alkyl group R′—(CH 2 ) z —, wherein z is at least 1.
  • z can be 1, 2, 3, 4, or 5.
  • z is not greater than 10, such as not greater than 8, not greater than 7, not greater than 6, not greater than 5, not greater than 4, or not greater than 3.
  • R′ can be selected from the group consisting of vinyl, difluorovinyl, trifluoromethyl, pentafluoroethyl, heptafluoropropyl, nonafluorobutyl, undecafluoropentyl, tridecafluorohexyl, pentadecafluoroheptyl, heptadecafluorooctyl, methoxy, ethoxy, trifluoromethoxy, pentafluoroethoxy, heptafluoroproxy, nonafluorobutoxy, undecafluoropentoxy, tridecafluorohexanoyl, pentadecafluoroheptanoyl, heptadecafluorooctanoyl, dimethyl amino, diethlyamino, di(trifluoromethyl)amino, and di(pentafluoroethyl)amino.
  • the silanol can be selected from the group consisting of:
  • two silanols can be mixed to form the primer layer.
  • the two silanol can be any two silanols of the aforementioned formulas.
  • two or more silanols can be mixed to form the primer layer.
  • two silanols can be mixed in any weight ratio.
  • two silanols can be mixed in a weight ratio of at least about 1:1, such as at least about 2:1, at least about 3:1, at least about 4:1, at least about 5:1, at leas about 10:1, at least about 20:1, or at least about 50:1.
  • the primer layer 2 has a thickness of at least about 0.2 microns, such as at least about 0.5 micron, at least about 0.8 microns, at least about 1 micron, at least about 1.5 microns, at least about 2 microns, at least about 2.5 microns, or at least about 3 microns.
  • the thickness is not greater than about 5 microns, such as not greater than about 4.5 microns, not greater than about 4 microns, not greater than about 3.5 microns, not greater than about 3 microns, not greater than about 2.5 microns, or not greater than about 2 microns.
  • the primer layer 2 and the adhesive layer 3 can have a combined thickness of at least about 2 microns, such as at least about 4 micron, at least about 6 microns, at least about 8 microns, or at least about 10 microns.
  • the adhesive layer 3 comprises an adhesive layer comprising a thermoplastic polymer or a blend of thermoplastic polymers.
  • the thermoplastic polymers can include perfluoroalkoxyethylene (PFA), tetrafluoroethylene-perfluoro(methyl vinyl ether) copolymer (MFA), ethylene tetrafluoroethylene (ETFE), tetrafluoroethylene-hexafluoropropylene (FEP), and any combination thereof.
  • the adhesive layer 3 can include a polymer blend of thermoplastic polymers.
  • the blend can include at least two thermoplastic fluoropolymers P1 and P2, wherein P1 is selected from perfluoroalkoxyethylene (PFA) or tetrafluoroethylene-hexafluoropropylene (FEP).
  • PFA perfluoroalkoxyethylene
  • FEP tetrafluoroethylene-hexafluoropropylene
  • P2 is different from P1 and can be a polymer selected from tetrafluoroethylene-hexafluoropropylene (FEP), modified tetrafluoroethylene-hexafluoropropylene (mFEP), perfluoroalkoxyethylene (PFA), modified perfluoroalkoxyethylene (mPFA), polyimide (PI), polyamidimide (PAI), polyphenylene sulfide (PPS), polyphenylene sulfone (PPSO2), liquid crystal polymers (LCP), polyether ether ketones (PEEK), aromatic polyesters (Ekonol), ethylene-tetrafluoroethylene (ETFE), tetrafluoro-ethylene-perfluoro(methyl vinyl ether) (MFA), modified polytetrafluoroethylene (TFM), polyvinylidene fluoride (PVDF), ethylene-chlorotrifluoroethylene (ECTFE), polyethersulfone (PES), and polyetherketone (
  • the blend of P1 and P2 can be in any a weight ratio.
  • the weight ration of P1:P2 can be about 1:99, about 5:95, about 10:90, about 15:85, about 20:80, about 25:75, about 30:70, about 35:65, about 40:60, about 45:55, or about 50:50.
  • the adhesive layer 3 can comprise at least three fluoropolymers P1, P2, and P3, wherein P1 is perfluoroalkoxyethylene (PFA), P2 is tetrafluoroethylene-hexafluoropropylene (FEP). P3 is different from P1 and P2.
  • PFA perfluoroalkoxyethylene
  • FEP tetrafluoroethylene-hexafluoropropylene
  • P3 can be a polymer selected from modified tetrafluoroethylene-hexafluoropropylene (mFEP), modified perfluoroalkoxyethylene (mPFA), polyimide (PI), polyamidimide (PAI), polyphenylene sulfide (PPS), polyphenylene sulfone (PPSO2), liquid crystal polymers (LCP), polyether ether ketones (PEEK), aromatic polyesters (Ekonol), ethylene-tetrafluoroethylene (ETFE), tetrafluoro-ethylene-perfluoro(methyl vinyl ether) (MFA), modified polytetrafluoroethylene (TFM), polyvinylidene fluoride (PVDF), ethylene-chlorotrifluoroethylene (ECTFE), polyethersulfone (PES), and polyetherketone (PEK).
  • mFEP modified tetrafluoroethylene-hexafluoropropylene
  • mPFA modified perfluoroal
  • each of the polymer of the adhesive layer 3 can be present at various weight percentages.
  • P1 can comprise at least about 1 wt %, at least about 2 wt %, at least about 5 wt %, at least about 10 wt %, at least about 20 wt %, at least about 30 wt %, at least about 40 wt %, or at least about 50 wt % of the adhesive layer.
  • P2 can comprise at least about 1 wt %, at least about 2 wt %, at least about 5 wt %, at least about 10 wt %, at least about 20 wt %, at least about 30 wt %, at least about 40 wt %, or at least about 50 wt % of the adhesive layer.
  • P3 or any subsequent polymer can comprise can comprise at least about 1 wt %, at least about 2 wt %, at least about 5 wt %, at least about 10 wt %, at least about 20 wt %, at least about 30 wt %, at least about 40 wt %, at least about 50 wt %, at least about 60 wt %, at least about 70 wt %, at least about 80 wt %, at least about 90 wt %, or at least about 95 wt % of the adhesive layer.
  • some polymers of the blend for the adhesive layer 3 do not exceed certain weight percentages.
  • the weight percentage of P1 is not greater than about 50 wt %, not greater than about 40 wt %, not greater than about 30 wt %, not greater than about 20 wt %, not greater than about 10 wt %, not greater than about 5 wt %, not greater than about 2 wt %, not greater than about 1 wt % of the adhesive layer.
  • the weight percentage of P2 is not greater than about 50 wt %, not greater than about 40 wt %, not greater than about 30 wt %, not greater than about 20 wt %, not greater than about 10 wt %, not greater than about 5 wt %, not greater than about 2 wt %, not greater than about 1 wt % of the adhesive layer.
  • the weight percentage of P3 or any subsequent polymer is not greater than about 95 wt %, not greater than about 90 wt %, not greater than about 80 wt %, not greater than about 70 wt %, not greater than about 60 wt %, not greater than about 50 wt %, not greater than about 40 wt %, not greater than about 30 wt %, not greater than about 20 wt %, not greater than about 10 wt %, not greater than about 5 wt %, not greater than about 2 wt %, or not greater than about 1 wt % of the adhesive layer.
  • Variation of the ratio of polymers P1, P2 and P3 provides for changes in the MFI (melt flow index), as specified by DIN EN ISO 1133, which is incorporated herein in its entirety.
  • the MFI is determined by the mass of polymer that can extrude through an orifice of defined dimensions at a specified temperature and load within 10 minutes. In general, the load is 5 kg and the temperature is approximately the melting point of the material to be characterized.
  • PFA has a melting point of approximately 372° C.
  • FEP or ETFE have melting points of approximately 297° C.
  • the MFI of the adhesive can be from 1 to 100 g/10 min, such as from 2 to 50 g/10 min, or from 3 to 25 g/10 min.
  • the sliding layer 4 applied to the adhesive layer 3 can be a PTFE compound tape, in particular as a surface-pretreated, preferably etched, PTFE compound tape.
  • the PTFE compound layer 4 used can contain various fillers to improve the mechanical properties, e.g. fibers, inorganic materials, thermoplastic materials, or mineral materials, or mixtures thereof.
  • fibers can include glass fibers, carbon fibers, and aramids.
  • inorganic materials can include ceramic materials, carbon, glass, graphite, aluminum oxide, molybdenum sulfide, tungsten disulfide, bronze, and silicon carbide.
  • the inorganic materials can be in the form of woven fabrics, powders, spheres, or fibers.
  • thermoplastic materials can include polyimide (PI), polyamidimide (PAI), polyphenylene sulfide (PPS), polyphenylene sulfone (PPSO2), liquid crystal polymers (LCP), polyether ether ketones (PEEK), polyethersulfone (PES), polyetherketone (PEK), and aromatic polyesters (Ekonol).
  • mineral materials can include wollastonite and barium sulfate.
  • the sliding layer includes PTFE, polyamide (PA), polyimide (PI), polyether ether ketone (PEEK), or a mixture thereof.
  • the sliding layer is perforated, air-permeable, or both.
  • the sliding layer 4 has a thickness of at least about 0.01 mm, such as at least about 0.05 mm, at least about 0.1 mm, or at least about 0.2 mm. In other embodiments, the sliding layer 4 has a thickness of not greater than about 2.0 mm, such as not greater than about 1.5 mm, not greater than about 1.0 mm, not greater than about 0.8 mm, not greater than about 0.5 mm, not greater than about 0.4 mm, or not greater than about 0.35 mm. In other embodiments, the sliding layer 4 has a thickness in a range from about 0.2 mm to about 0.4 mm, such as from about 0.2 mm to about 0.25 mm and from about 0.28 mm to about 0.32 mm. In one particular embodiment, the sliding layer has a thickness has a thickness of about 0.24 mm. In another particular embodiment, the sliding layer has a thickness has a thickness of about 0.30 mm.
  • such sliding layer can further comprise at least one filler.
  • filler selected from fibers, glass fibers, carbon fibers, aramids, inorganic materials, ceramic materials, carbon, glass, graphite, aluminum oxide, molybdenum sulfide, tungsten disulfide, bronze, silicon carbide, woven fabrics, powders, spheres or fibers, thermoplastic materials, in particular polyimide (PI), polyamidimide (PAI), polyphenylene sulfide (PPS), polyphenylene sulfone (PPSO2), liquid crystal polymers (LCP), polyether ether ketones (PEEK), aromatic polyesters (Ekonol), mineral materials, wollastonite, barium sulfate, or mixtures thereof.
  • the filler can be in a proportion from about 1 to about 40% by volume, from about 5 to about 30% by volume, from about 10 to about 20% by volume.
  • the slide bearing can be characterized by improved adhesion of the sliding layer 4 to the support material 1 brought about by the adhesive layer 3 and the primer layer 2 .
  • FIG. 2 displays the bonding strength of a sliding layer in the presence and absence of the primer layer 2 .
  • the metal support can be of any structure or shape.
  • the metal support can be a plate, a sheet, a woven fabric, a mesh, or metal foam.
  • the metal support includes steel, cold-rolled steel material No. 1.0338, cold-rolled steel material No. 1.0347, matt zinc-plated steel, stainless steel material No. 1.4512, stainless steel material No. 1.4720, stainless steel material No. 1.4310, aluminum, alloys, or any combinations thereof.
  • the metal support can have a coating.
  • the coating can be a layer of another metal or alloy.
  • the coating is a metal or alloy containing at least one of the following metals: chromium, molybdenum, tungsten, manganese, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver, gold, zinc, cadmium, mercury, aluminum, gallium, indium, thallium, silicon, germanium, tin, lead, antimony, and bismuth.
  • the coating can be a copper alloy, a copper-tin alloy, a copper-zinc alloy, a bronze, a phosphor bronze, a silicon bronze, a brass, or any combinations thereof.
  • the metal support used in the slide bearing can have a surface of a varying nature.
  • the metal support can have either a smooth surface or a roughened or structured surface (for example, as achieved by brushing, sandblasting, embossing of a structure). Regardless of the surface roughness, the surface can also be modified to form a plated surface, such as an electrolytically zinc-plated surface.
  • the thickness of the adhesive layer can correspond essentially to the roughness of the metal support, defined as the distance R max between the maximum profile peak height and the maximum profile valley depth of the roughness profile of the surface of the metal support. In this way, it can be ensured that a sufficiently thick adhesive layer is applied to the metal support so that a full-area adhesive bond between sliding layer and metal support is ensured.
  • the adhesive layer should also not be made too thick. In this case, there would be a risk that, on joining the layers, parts of the adhesive layer could be pressed out from the adhesive bond or cohesive rupture could occur within parts of the adhesive layer projecting above the roughness profile of the metal support surface when the slide bearing is subjected to shear stress.
  • the thickness can be at least about 1 micron, such as at least about 2 microns, at least about 3 microns, at least about 5 microns, at least about 10 microns, at least about 15 microns, or at least about 35 microns.
  • the thickness can be not greater than about 40 microns, such as not greater than about 35 microns, not greater than about 30 microns, not greater than about 25 microns, not greater than about 20 microns, not greater than about 15 microns, or not greater than about 10 microns.
  • the metal support can have an average surface roughness R a of less than about 400 microns, less than about 200 microns, less than about 100 microns, less than about 50 microns, less than about 25 microns, less than about 20 microns, less than about 15 microns, less than about 10 microns, less than about 5 microns, less than about 3 microns, less than about 2 microns, less than about 1 micron.
  • the metal support has an average surface roughness R a of at least about 0.01 micron, at least about 0.02 micron, at least about 0.05 micron, at least about 0.1 micron, at least about 0.5 micron, at least about 1 micron, at least about 2 microns, at least about 5 microns, at least about 10 microns, at least about 20 microns, at least about 50 microns, at least about 100 microns, at least about 200 microns, at least about 500 microns.
  • R a average surface roughness
  • the metal support can have an average surface roughness R a in the range from about 0.1 micron to about 400 microns, from about 0.5 micron to about 100 microns, or from about 1 micron to about 50 microns.
  • the adhesive layer 3 can contain fillers.
  • Fillers can increase and/or improve the thermal conductivity and/or the wear properties.
  • Fillers can be fibers, inorganic materials, thermoplastic materials, mineral materials, or mixtures thereof.
  • fibers can include glass fibers, carbon fibers, and aramids.
  • Inorganic materials can include ceramic materials, carbon, glass, graphite, aluminum oxide, molybdenum sulfide, tungsten disulphide, bronze, and silicon carbide.
  • the inorganic materials can be in the form of woven fabrics, powders, spheres or fibers.
  • thermoplastic materials can include polyimide (PI), polyamidimide (PAI), polyphenylene sulfide (PPS), polyphenylene sulfone (PPSO2), liquid crystal polymers (LCP), polyether ether ketones (PEEK), polyethersulfone (PES), polyetherketone (PEK), and aromatic polyesters (Ekonol).
  • PI polyimide
  • PAI polyamidimide
  • PPS polyphenylene sulfide
  • PPSO2 polyphenylene sulfone
  • LCP liquid crystal polymers
  • PEEK polyether ether ketones
  • PES polyethersulfone
  • PEK polyetherketone
  • aromatic polyesters Ekonol
  • mineral materials can include wollastonite and barium sulfate.
  • the proportion of filler in the adhesive layer 3 can be from about 1 to about 40% by volume, such as from about 5 to about 30% by volume, from about 10 to about 25% by volume, or even from about 20 to about 25% by volume.
  • the thickness of the intermediate layer 3 can be in the range from about 0.001 mm to 0.4 mm, such as from 0.01 to 0.05 mm.
  • a method of producing a slide bearing includes applying a primer liquid onto a metal support.
  • the primer liquid can include at least one silanol or an oligomeric condensate of at least one silanol.
  • the silanol can be selected from the group having the formula
  • the method can further include drying the primer liquid to form a primer layer.
  • the method can further include applying an adhesive precursor onto the primer layer to form an adhesive layer.
  • the method can include applying a sliding layer onto the adhesive layer.
  • applying of the primer liquid can include spraying, brushing, and dip coating.
  • the primer liquid can include an organic solvent, water, or a combination thereof.
  • the organic solvent can be methanol, ethanol, propanol, iso-propanol, butanol, diethyl ether, tetrathydrofuran, acetone, ethyl acetate, or any combination thereof.
  • the adhesive precursor can be in the form of a film, a foil, a powder, or any combination thereof.
  • the adhesive is thereby generated upon thermal treatment, e.g., during the lamination process when the sliding layer is applied onto the metal support.
  • the sliding layer can be applied by laminating, by coiling, by paste spreading, or any combination thereof.
  • paste spreading a sliding precursor in form of a paste or high viscous slurry is applied onto the adhesive or the adhesive precursor followed by a drying, calendar, or curing step, which result in the sliding layer laminated onto the metal support.
  • a filler of the group of filler listed above can be added to the sliding layer precursor or the adhesive precursor.
  • both the metal support and the sliding layer are in each case rolled off a roll as continuous material.
  • Primer liquid is applied to the metal support followed by adhesive precursor.
  • the layers are joined to one another under pressure and at elevated temperature in a laminating roller apparatus.
  • an embodiment of the process provides for the surface of the metal support to be roughed and/or surface-upgraded.
  • the method can include coating the metal surface.
  • the surface of the metal support can be treated by electrolytic zinc-plating to roughen, upgrade, or coat the surface. This is done before application of the adhesive layer.
  • the surface area of the metal support can be increased by mechanical structuring.
  • the structuring can include brush-finishing, sand-blasting, etching, perforating, pickling, punching, pressing, curling, deep drawing, decambering, incremental sheet forming, ironing, laser cutting, rolling, hammering, embossing, undercutting, and any combinations thereof.
  • embossing of a structure allows for the possibility of intermeshing, which has a positive effect on the resulting bonding forces.
  • the surface of the metal support can be degreased.
  • Degreasing can be done by a washing process with a soap solution and/or rinsing with an organic solvent.
  • Solvents for the degreasing process can be acetone, ethanol, isopropyl alcohol, or any combination thereof.
  • an ammonia solution such as a 0.5% ammonia solution can be used.
  • the improved adhesive strength can be determined by means of a 180° peel test using sandwich laminates.
  • the 180°-T-peel test is described in DIN EN 1895, which is incorporated herein in its entirety. Strips of specimens having a five-layer structure are prepared. The layer set-up is: Steel backing, adhesive, sliding layer, adhesive, steel backing. The strips have a width of 25 mm. Clamps are affixed at one end to the opposing steel lips. The steel backings are pulled apart and the peel force for separating the steel backings is measured.
  • strips are prepared having ETFE as material for the adhesive layer.
  • Cold-rolled steel of the grade 1.0338 is selected as metallic backing and a PTFE compound tape having a filler content of 25% is selected as sliding layer.
  • the metallic backing is treated with a primer liquid to form a primer layer from an aminopropylsilanol-condensate.
  • Slide bearings can be prepared in a vast number of very different shapes and sizes.
  • the smallest bearing, also called a pico bearing, is only a few p m in height compared to bearings for other applications that could be up to 500 mm.
  • Slide Bearings can include plane bearings, annular bearings, bushings, balljoint bearings (half spheres), plain bearings, axial bearings, thrust bearings, linear bearings, bearing shells, bearing cups and combinations thereof.
  • the bearing is maintenance free.
  • maintenance-free describes bearings that do not need to be greased as was the case for bearings in early car doors. Yet, the life time of maintenance-free bearings exceeds the average life time of the product these bearings are incorporated or the life time of conventional bearings applied for the same purpose.
  • Slide bearings are applied in a broad spectrum of commercial industry ranging from the heavy metal industry to the automotive and bike industry, even into baking industry, laptop/mobile phone hinges, bearings for solar applications and more
  • the terms “comprises,” “comprising,” “includes,” “including,” “has,” “having” or any other variation thereof, are intended to cover a non-exclusive inclusion.
  • a process, method, article, or apparatus that comprises a list of features is not necessarily limited only to those features but may include other features not expressly listed or inherent to such process, method, article, or apparatus.
  • “or” refers to an inclusive-or and not to an exclusive-or. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present), A is false (or not present) and B is true (or present), and both A and B are true (or present).

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  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Laminated Bodies (AREA)
  • Sliding-Contact Bearings (AREA)
  • Paints Or Removers (AREA)
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US13/931,010 2012-06-29 2013-06-28 Slide bearing comprising a primer system as adhesion promoter Abandoned US20140010484A1 (en)

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US15/136,207 US10113588B2 (en) 2012-06-29 2016-04-22 Slide bearing comprising a primer system as adhesion promoter
US16/144,164 US10563696B2 (en) 2012-06-29 2018-09-27 Slide bearing comprising a primer system as adhesion promoter

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PL2867019T3 (pl) 2023-04-24
CN104364079A (zh) 2015-02-18
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EP2867019A1 (en) 2015-05-06
US20160238072A1 (en) 2016-08-18

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