PT86914B - Uniao para tubagem em resina a base de cloreto de vinilo, compreendendo um anel de estanquicidade em borracha termoplastica - Google Patents

Uniao para tubagem em resina a base de cloreto de vinilo, compreendendo um anel de estanquicidade em borracha termoplastica Download PDF

Info

Publication number
PT86914B
PT86914B PT86914A PT8691488A PT86914B PT 86914 B PT86914 B PT 86914B PT 86914 A PT86914 A PT 86914A PT 8691488 A PT8691488 A PT 8691488A PT 86914 B PT86914 B PT 86914B
Authority
PT
Portugal
Prior art keywords
sealing ring
fixed
welding
vinyl chloride
union
Prior art date
Application number
PT86914A
Other languages
English (en)
Other versions
PT86914A (pt
Inventor
Hans Guitoneau
Original Assignee
Draka Polva Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Draka Polva Bv filed Critical Draka Polva Bv
Publication of PT86914A publication Critical patent/PT86914A/pt
Publication of PT86914B publication Critical patent/PT86914B/pt

Links

Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
    • F16L47/10—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket the sealing rings being maintained in place by additional means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73753—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being partially cured, i.e. partially cross-linked, partially vulcanized
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/03—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips
    • F16L17/032—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips the sealing rings having only one lip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0672—Spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/08—PVDC, i.e. polyvinylidene chloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
    • B29K2031/04—Polymers of vinyl acetate, e.g. PVAc, i.e. polyvinyl acetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0085—Copolymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0088—Blends of polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0046—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Memória Descritiva
A presente invenção refere-se a uma união para tubagem em resina à base de cloreto de vinilo, compreendendo um anel de estanquicidade em borracha termoplástica, fixada em posição por soldadura na união.
Já foi proposto realizar uniões para tubagem em matéria plástica recorrendo-se a um anel de estanquicidade em borracha termoplástica, fixado por soldadura na união.
borracha de etileno-propileno-dieno-metileno vulcanisada com enxofre ou com um produto dador de enxofre, que pode ser fixado em posição por soldadura na união.
Todavia, um anel de estanquicidade construido neste material não pode ser convenientemente fixado por soldadura na união de tubagem construida em resina à base de cloreto de vinilo, devido á ausência de compatibilidade.
Na verdade, na Patente BE-A-867 993 foi proposto construir uniões para tubagem em resina à base de cloreto de vinilo munidas de um anel de estanquicidade em borracha termoplástica obtida a partir de composiçoes de policloreto de vinilo plastificado contendo borracha de nitrilo e poliuretano, que ê fixado por soldadura, mas para obter neste caso produtos satisfatórios torna-se necessário submeter pelo menos um dos elementos da união a uma irradiação por raios muito penetrantes, tendo em vista provocar uma reticulaçao. Mesta técnica deve-se no entanto utilizar composiçoes à base de policloreto de vinilo plastificado, nas quais a reacção de reticulaçao pretendida predomine relativamente à degradação induzida pela reticulaçao. De qualquer modo, para realizar estas uniões é necessário dispor-se de uma instalação de irradiação, prever um passo de irradiaçao e tomar todas as precauções que se impõem nas operaçoes de irradiaçao.
Descobriu-se agora que é possível, nas instalações de fabricaçao convencionais, em resina a base de cloreto de vinilo compreendendo um anel de estanquicidade em borracha termoplástica que pode ser fixado na sua posição nas uniões por soldadura, e isto sem se tornar necessário proceder a qualquer tratamento por irradiação.
A invenção refere-se, por conseguinte, a uma uniáo para tubagem em resina à base de cloreto de vinilo, compreendendo um anel de estanquicidade em borracha termoplástica fixado por soldadura na união, na qual o anel de estanquicidade é construido a partir de uma mistura, parcialmente vulcanisada, de um copolímero de etileno com pelo menos um comonómero copolimerizável e 5 até 75%, de preferência 20 a 60% em peso, da mistura de um polímero de um halogeneto de vinilo ou de vinilide:
Por resina a base de cloreto de vinilo entendem-se os homopolímeros do cloreto de vinilo, assim coma as copolímeros contendo pelo menos 50% molar de unidades derivadas do cloreto de vinilo.
Entre os comonómeros que podem ser copolimerizados com o etileno preferem-se geralmente os monómeros insaturados etilenicamente, tais como os ácidos mono ou dicarboxílicos e os seus ésteres derivados, os ésteres vinilicos, os monómeros acrílicos ou metacrílicos, o óxido de carbono e o dióxido de enxofre.
□ polímero de halogeneto de vinilo ou de vinilideno pode ser um homopolímero ou um copolímero contendo nomeadamente unidades derivadas de ésteres vinilicos, de nitrilo acrílico, de ésteres acrílicos, de cloreto de vinilo ou de vinilideno, de ácidos carboxílicos insaturados ou de éteres vinilicos, sendo o polímero preferido o policloreto de vinilo.
As misturas que convém particularmente para realizar o anel de estanquicidade, assim como o seu modo de fabricação, estão descritos no documento EP-A-0 101 833 cujo conteúdo é incorporado para referência na memória.
As misturas para realizar o anel de estanquicidade da união de acordo com a invenção sao particularmente vulcanizadas, de preferencia até um teor em gel de 10 a 7D% medido por dissolução em tetrahidrofurano, como está descrito no documento EP-A-D 101 B33 acima citado.
Estas misturas podem igualmente conter aditivos que são comuns, tais como matérias de carga, lubrificantes, estabilisadores e/ou plastificantes.
Misturas que convém particularmente bem para realizar o anel de estanquicidade da união de acordo com a invenção sao produzidas e vendidas pela firma Ε. I. du PONT DE NEM0UR5, sob a marca comercial ALCRYN. Estas misturas permanecem termicamente estáveis até pelo menos 200sC, podendo ser facilmente moldadas por injecção ou por compressão em instalações clássicas, e não exigem qualquer operação de vulcanização quando da sua moldagem.
De acordo com uma primeira variante de realizaçao da união para tubagem de acordo com a invenção, o anel de estanquicidade e a união em resina à base de cloreto de vinilo podem ser moldados separadamente por técnicas correntes, tais como a moldagem por compressão, a moldagem por injecção, ou a termomoldagem, sendo a moldagem do anel de estanquicidade realizada a uma temperatura compreendida entre 140 e 190sC. Neste caso o anel de estanquicidade previamente moldado é em seguida introduzido na união e fixado em posição por soldadura, por uma técnica convencional, tal como a soldadura por espelho de aquecimento, soldadura por ultrassons, soldadura por resistência eléctrica, soldadura por fricção, soldadura a alta frequência ou ainda a soldadura por vibrações. D anel de estanquicidade pode ser evidentemente moldado de forma tal que a sua fixação seja realizada sobre uma face interna e/ou externa da união. Uma fixação sobre a face externa da união pode por outro lado revelar-se útil quando se pretenda proteger a extremidade da união contra choques. Quando a fixação é realizada pela técnica de soldadura por espelho de aquecimento utiliza-se geralmente uma temperatura de espelho de 200 a 2405C, uma pressão de solda dura de 0,1 a 0,3 N/mm e um tempo de soldadura de 15 a 60 segundos
De acordo com uma outra variante de realizaçao da união para tubagem que se revela mais económica, a união e o anel de estanquicidade podem ser moldados simultaneamente pela técnica de coinjecção, tal como está descrita nomeadamente nos documentos ΒΕ-Α-Θ38 058, BE-A-853 292, EP-A-0 031 620 , EP-A-0 188 012, EP-A-0 188 300 e EP-A-0 188 301. Neste caso a temperatura de injecção do material que forma o anel de estanquicidade é escolhida de modo a assegurar a fixaçao directa por soldadura do anel de estanquicidade moldado na união.
De acordo com uma terceira variante o anel de estanquicidade munido de um anel de retenção rígido em matéria plástica, de preferência em policloreto de vinilo, fixado por soldadura, pode ser produzido separadamente por exemplo pela técnica de coinjecção e este conjunto é em seguida inserido e fixado por soldadura através do anel de retenção, na união moldada. Uma técnica deste tipo está descrita no documento
GB-A-2 144 190.
Na união de acordo com a invenção é ainda possível, se desejado, moldar um anel de estanquicidade reforçado por um reforço inserido internamente, metálico ou de outra natureza. Este inserto pode em particular ser uma resistência eléctrica nos casos em que se tem em vista uma fixação posterior por soldadura eléctrica.
A unfão para tubagem de acordo com a invenção pode ser ou uma união de encaixe face a face de qualquer tipo, ou ainda uma união de derivação, tal como está descrita no documento BE-A-833 318.
A união para tubagem de acordo com a invenção está ilustrada nas figuras das desenhos anexos, nas quais as figs. 1 até 3 mostram em vista parcial, variantes de realização possíveis de uniões de encaixe, e a fig. 4 uma vista de uma união de derivação. Nestas figuras o anel de estanquicidade 1 em borracha termoplástica de acordo com a invenção, é fixado por uma soldadura 2 sobre as paredes interna e/ou externa da união 3 moldada em policloreto de vinilo rígido.
A união para tubagem de acordo com a invenção é ainda ilustrada pela descrição que se segue de um exemplo de realização prática de uma união do tipo ilustrado na figura 2.
Exemplo
Realiza-se por moldagem por transferi um anel de estanquicidade com o perfil representado na fig. 2, utilizando como material grânulos de resina ALORYN, de dureza 70 Shore A.
Para esse efeito o material, em quantidade doseada, é colocado na matriz mantida a 16Q2C e depois de um tempo de aquecimento de 10 min, efectua-se a moldagem por pressão. Depois do arrefecimento da matriz até à temperatura ambiente, retira-se □ anel de estanquicidade moldado.
□ anel de estanquicidade assim obtido é em seguida fixado sobre a extremidade da união em policloreto de vinilo, previamente moldada por termomoldagem, pela técnica de soldadura por espelho de aquecimento. Para esse efeito o espelho é mantido a 22DSC, a pressão de soldadura aplicada é de 0,2 N/mm e o tempo de soldadura é de 30 segundos.
Depois do arrefecimento verifica-se que □ anel de estanquicidade está perfeitamente soldado sobre a união e que este anel se rompe quando se tenta arrancá-lo da união, e isto sem que a soldadura ceda

Claims (1)

  1. R Ε I V I N D I L A Ç S E 5
    - 1® União para tubagem em resina à base de cloreto de vinilo compreendendo um anel de estanquicidade em borracha termoplástica realizado a partir de uma mistura parcialmente vulcanizada de um copolímero de etileno com pele menos 1 monómero copolimerizável e 5 até 75%, em peso da mistura, de um polímero de halogeneto de vinilo ou de vinilideno, caracterizada pelo facto de o anel de estanquicidade ser fixado na união por soldadura.
    - União de acordo com a reivindicação 1 caracterizada pelo facto de o anel de estanquicidade ser fixado por soldadura pela técnica do espelho de aquecimento.
    União de acordo com a reivindicação 1 caracterizada pelo facto de o anel de estanquicidade ser fixado por soldadura por ultrassons.
    7 - 4§ União de acordo com a reivindicação 1 caracterizada pelo facto de o anel de estanquicidade ser fixado por soldadura por fricção.
    União de acordo com a reivindicação 1 caracterizada pelo facto de o anel de estanquicidade ser fixado por soldadura eléctrica»
    União de acordo com a reivindicação 1 caracterizada pelo facto de o anel de estanquicidade ser fixado por soldadura por alta frequência.
    _ 7§_
    União de acordo com a reivindicação 1 caracterizada pelo facto de o anel de estanquicidade ser realizado e fixado por coinjecção.
    - 82 _
    União de acordo com a reivindicação 1 caracterizada pelo facto de o anel de estanquicidade ser fixado por soldadura sobre um anel de fixação em resina à base de cloreto de vinilo que ê em seguida tornado solidário com a união.
    - 95 _
    União de acordo com a reivindicação 1 caracteri8 zada pelo facto de □ anel de estanquicidade ser fixada por coinjecção sabre um anel de fixação em resina á base de cloreto de vinilo que é em seguida tornado solidário com a união.
    Foi inventor Hans Guitoneau, holandês, engenheiro mecânico, residente em Madame Curiestraat, 22, NL-1611 EE Bovenkarspel, Holanda.
PT86914A 1987-03-09 1988-03-08 Uniao para tubagem em resina a base de cloreto de vinilo, compreendendo um anel de estanquicidade em borracha termoplastica PT86914B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8703298A FR2612118B1 (fr) 1987-03-09 1987-03-09 Raccord pour tuyauterie en resine a base de chlorure de vinyle comprenant un anneau d'etancheite en caoutchouc thermoplastique

Publications (2)

Publication Number Publication Date
PT86914A PT86914A (pt) 1989-03-30
PT86914B true PT86914B (pt) 1995-03-31

Family

ID=9348832

Family Applications (1)

Application Number Title Priority Date Filing Date
PT86914A PT86914B (pt) 1987-03-09 1988-03-08 Uniao para tubagem em resina a base de cloreto de vinilo, compreendendo um anel de estanquicidade em borracha termoplastica

Country Status (8)

Country Link
AT (1) AT397992B (pt)
BE (1) BE1006026A3 (pt)
DE (1) DE3807593C2 (pt)
ES (1) ES2006103A6 (pt)
FR (1) FR2612118B1 (pt)
GB (1) GB2203689B (pt)
NL (1) NL194642C (pt)
PT (1) PT86914B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286148B (en) * 1994-02-02 1997-10-01 Glynwed Plastics Securing elastomeric and thermoplastics components together
GB2431135B (en) * 2005-10-11 2008-06-18 Uponor Innovation Ab Bonding thermoplastic and elastomeric members
DE102008059243A1 (de) * 2008-11-21 2010-05-27 Newfrey Llc, Newark Fügebauteil und Verfahren zum Herstellen eines Fügebauteils
IT1393549B1 (it) * 2009-04-03 2012-04-27 Coes S P A Giunzione per il collegamento a tenuta idraulica di tubi o raccordi, particolarmente in polipropilene, per impianti idraulici a bassa pressione.

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL176883C (nl) * 1974-09-13 1985-06-17 Polva Nederland Bv Aftakverbinding aan een hoofdleiding.
GB1477074A (en) * 1975-01-31 1977-06-22 Hepworth Iron Co Ltd Manufacture of pipe couplings
GB1572099A (en) * 1976-04-06 1980-07-23 Hepworth Iron Co Ltd Manufacture of pipe couplings
FR2405122A2 (fr) * 1976-11-22 1979-05-04 Pont A Mousson Element de tuyauterie constitutif d'un joint et dispositif pour sa fabrication
GB1572100A (en) * 1977-06-10 1980-07-23 Hepworth Iron Co Ltd Plastics pipe couplings
FR2396233A1 (fr) * 1977-07-01 1979-01-26 Everitube Emboitement de canalisation
SE7808606L (sv) * 1977-08-17 1979-02-18 Johns Manville Muffende vid muffkoppling samt sett att framstella denna
US4258935A (en) * 1977-08-17 1981-03-31 Johns-Manville Corporation Bell end of a bell and spigot joint
FR2444864A1 (fr) * 1978-12-22 1980-07-18 Everitube Element de tuyauterie comprenant un emboitement et une garniture d'etancheite, et procede de fabrication
NL178028C (nl) * 1979-03-30 1986-01-02 Wavin Bv Vasthoudring met afdichtring voor een buisdeel.
NL7909294A (nl) * 1979-12-21 1981-07-16 Wavin Bv Werkwijze voor het verenigen van een fixatiedeel en een afdichtlichaam voor een buisverbinding.
BR8303436A (pt) * 1982-07-01 1984-02-07 Du Pont Processo para preparar uma composicao termoplastica,elastomerica pelicula auto-suportada,artefato moldado;perfil extrudado,tubo poliester,poliamida,poliamida ou fibra metalica ou tecido revestido por extrusao com uma composicao
GB2144190B (en) * 1983-06-03 1986-07-09 Hepworth Iron Co Ltd Coupling pipes
NL8500073A (nl) * 1985-01-14 1986-08-01 Wavin Bv Werkwijze voor het vervaardigen van een afdichtlichaam in het bijzonder voor een buisverbinding en een volgens deze werkwijze vervaardigd afdichtlichaam.
DE3660369D1 (en) * 1985-01-14 1988-08-18 Wavin Bv Method for manufacturing a sealing body, particularly for a pipe joint, and mould for manufacturing a sealing body
NL8500075A (nl) * 1985-01-14 1986-08-01 Wavin Bv Afdichtingsring voor een buisverbinding.
EP0188012B1 (en) * 1985-01-14 1991-07-03 Wavin B.V. Plastic pipe body of thermoplastic material connected with a sealing body of a thermoplastic elastomer and pipe part or fitting connected with such a plastic pipe body

Also Published As

Publication number Publication date
AT397992B (de) 1994-08-25
GB2203689A (en) 1988-10-26
GB2203689B (en) 1990-10-31
NL194642C (nl) 2002-10-04
DE3807593C2 (de) 1997-07-10
FR2612118A1 (fr) 1988-09-16
ES2006103A6 (es) 1989-04-01
DE3807593A1 (de) 1988-09-22
NL194642B (nl) 2002-06-03
GB8805475D0 (en) 1988-04-07
BE1006026A3 (fr) 1994-04-26
NL8800562A (nl) 1988-10-03
ATA61088A (de) 1993-12-15
PT86914A (pt) 1989-03-30
FR2612118B1 (fr) 1989-06-16

Similar Documents

Publication Publication Date Title
EP0405103B1 (en) Extruded ethylenic polymer foam containing both open and closed cells
US3821333A (en) Gasket for lens mold from a blend of epdm and ethylene/vinyl acetate copolymer
JPH0560952B2 (pt)
KR927003722A (ko) 겔
PT86914B (pt) Uniao para tubagem em resina a base de cloreto de vinilo, compreendendo um anel de estanquicidade em borracha termoplastica
JPH0572405B2 (pt)
JPH11223283A (ja) 塩化ビニル系管路構成部材
US3501427A (en) Thermoplastic splints comprising vinyl chloride vinyl acetate copolymer and epoxidized oil
US4768278A (en) Method of manufacturing a joint for connecting a spigot to the bell of a pipe or coupling
JPH01145470A (ja) 水膨潤ゴムを利用したシール材及びその製造方法
EP0346173A3 (en) Closure assembly and method of making same using epoxidized natural oil in a low fusing, curable plastisol
ATE25093T1 (de) Mit monomer plastifizierte elastomere und verfahren zu ihrer herstellung.
JPH0482034B2 (pt)
Guitoneau Plastics Piping Connector Sealing Ring
JPH0115529B2 (pt)
CN116146251A (zh) 具有高粘性和弹性的复合型橡胶止水带及其生产工艺
JPS6217483A (ja) 積層チユ−ブ
JPS5571742A (en) Vulcanizable halogen-containing polymer composition
JPH0329835B2 (pt)
NO912652L (no) Termoplastisk elastomer paa basis av polynorbornen og polyvinylklorid
JPH0120968B2 (pt)
JP3271297B2 (ja) セルキャスト重合用成型具
JPH10114001A (ja) 塩素化塩化ビニル系樹脂管及び該樹脂管用継手
JPH07118479A (ja) 塩化ビニル系樹脂組成物、これを用いた枠体付きガラス板およびその製造方法
GB1063408A (en) Extruded pitch based material and process for producing the same

Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19940901

PC3A Transfer or assignment

Free format text: 961114 POLVA PIPELIFE B.V. NL

PD3A Change of proprietorship

Free format text: PIPELIFE NEDERLAND B. V. NL

Effective date: 20050120

MM4A Annulment/lapse due to non-payment of fees, searched and examined patent

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20070301