NO793328L - PROCEDURE AND DEVICE FOR CONNECTING PLATES OF EXPANDED THERMOPLASTIC RESIN - Google Patents

PROCEDURE AND DEVICE FOR CONNECTING PLATES OF EXPANDED THERMOPLASTIC RESIN

Info

Publication number
NO793328L
NO793328L NO793328A NO793328A NO793328L NO 793328 L NO793328 L NO 793328L NO 793328 A NO793328 A NO 793328A NO 793328 A NO793328 A NO 793328A NO 793328 L NO793328 L NO 793328L
Authority
NO
Norway
Prior art keywords
procedure
thermoplastic resin
connecting plates
expanded thermoplastic
expanded
Prior art date
Application number
NO793328A
Other languages
Norwegian (no)
Other versions
NO155652C (en
NO155652B (en
Inventor
Raffaele Di Maio
Original Assignee
Stirofilm Spa
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 Stirofilm Spa filed Critical Stirofilm Spa
Publication of NO793328L publication Critical patent/NO793328L/en
Publication of NO155652B publication Critical patent/NO155652B/en
Publication of NO155652C publication Critical patent/NO155652C/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/06Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08Layered products comprising a layer of synthetic resin 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/03Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/03After-treatments in the joint area
    • B29C66/034Thermal after-treatments
    • B29C66/0342Cooling, e.g. transporting through welding and cooling zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45Joining of substantially the whole surface of the articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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 structure of the material of the parts to be joined
    • B29C66/727General 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 structure of the material of the parts to be joined being porous, e.g. foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • B29C66/83413Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/04Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/72General 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 structure of the material of the parts to be joined
    • B29C66/723General 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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327General 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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328Paper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00Layered products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B2038/0052Other operations not otherwise provided for
    • B32B2038/0088Expanding, swelling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00Condition, form or state of the layers or laminate
    • B32B2305/02Cellular or porous
    • B32B2305/022Foam
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/72Density
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/08Dimensions, e.g. volume
    • B32B2309/10Dimensions, e.g. volume linear, e.g. length, distance, width
    • B32B2309/105Thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00Walls, panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Sealing Material Composition (AREA)
  • Adhesives Or Adhesive Processes (AREA)
NO793328A 1978-12-12 1979-10-16 PROCEDURE FOR CONTINUOUS PREPARATION OF A PLATE BY CONNECTION OF TWO OR MORE COATS OF EXPANDED THERMOPLASTIC RESIN. NO155652C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT528278A IT1104292B (en) 1978-12-12 1978-12-12 PROCEDURE FOR THE COUPLING OF EXPANDED THERMOPLASTIC RESIN LEAVES, AND COMPOSITE PANEL OBTAINED BY THAT PROCEDURE

Publications (3)

Publication Number Publication Date
NO793328L true NO793328L (en) 1980-06-13
NO155652B NO155652B (en) 1986-01-26
NO155652C NO155652C (en) 1987-05-06

Family

ID=11120142

Family Applications (1)

Application Number Title Priority Date Filing Date
NO793328A NO155652C (en) 1978-12-12 1979-10-16 PROCEDURE FOR CONTINUOUS PREPARATION OF A PLATE BY CONNECTION OF TWO OR MORE COATS OF EXPANDED THERMOPLASTIC RESIN.

Country Status (13)

Country Link
AT (1) AT367348B (en)
BE (1) BE879571A (en)
CH (1) CH635776A5 (en)
DE (1) DE2943588C2 (en)
DK (1) DK150978C (en)
ES (1) ES485983A1 (en)
FR (1) FR2443928A1 (en)
GB (1) GB2044672B (en)
GR (1) GR66671B (en)
IT (1) IT1104292B (en)
NL (1) NL185757C (en)
NO (1) NO155652C (en)
SE (1) SE430967B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3635049A1 (en) * 1986-10-15 1988-04-28 Pegulan Werke Ag METHOD FOR PRODUCING A DRAWABLE FOAM COMPOSITE FILM
DE19755940A1 (en) * 1997-12-16 1999-06-24 Armstrong Insulation Products Process for the production of a thermally insulating sheet material
US9296126B2 (en) 2003-05-17 2016-03-29 Microgreen Polymers, Inc. Deep drawn microcellularly foamed polymeric containers made via solid-state gas impregnation thermoforming
JP2010516501A (en) 2007-01-17 2010-05-20 マイクログリーン ポリマーズ インク. Multilayer foamed polymer and related methods
US8568125B2 (en) 2008-04-14 2013-10-29 Microgreen Polymers Inc. Roll fed flotation/impingement air ovens and related thermoforming systems for corrugation-free heating and expanding of gas impregnated thermoplastic webs
GB2474431B (en) 2009-10-13 2012-10-31 Gurit Uk Ltd Production of extruded foam
WO2011133568A1 (en) 2010-04-19 2011-10-27 Microgreen Polymers, Inc A method for joining thermoplastic polymer material
WO2012103473A2 (en) * 2011-01-27 2012-08-02 Microgreen Polymers, Inc. A microstructure for fusion bonded thermoplastic polymer material, and related methods
EP2820074B1 (en) 2012-02-29 2018-06-13 Dart Container Corporation Method for infusing a gas into a thermoplastic material, and related systems
CA2874498A1 (en) 2012-05-22 2013-11-28 Owens Corning Intellectual Capital, Llc Laminated foam product and methods for making laminated foam products
JP6258972B2 (en) 2013-01-14 2018-01-10 マイクログリーン ポリマーズ,インク. System for unwinding a roll of thermoplastic material interleaved with a porous material and associated method
CN108859131A (en) * 2018-06-05 2018-11-23 浙江乍浦塑料制品有限公司 A kind of hollow plate automatic manufacturing device and its production technology

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7100165U (en) * 1971-06-03 Lavorazione Materie Plastische Lmp Spa Composite film made of foamed plastic layers
DE1504917A1 (en) * 1963-05-29 1969-04-03 Rudolf Schoebel Resilient floor or wall covering
DE2114446A1 (en) * 1971-03-25 1972-09-28 Metallgesellschaft Ag Foam with dense skin - on both sides produced by joining two foam layers externally cooled

Also Published As

Publication number Publication date
SE430967B (en) 1983-12-27
GR66671B (en) 1981-04-08
GB2044672B (en) 1983-04-20
ATA675679A (en) 1981-11-15
DK435579A (en) 1980-06-13
IT1104292B (en) 1985-10-21
DK150978C (en) 1988-02-22
AT367348B (en) 1982-06-25
NO155652C (en) 1987-05-06
DE2943588C2 (en) 1984-10-18
SE7908575L (en) 1980-06-13
BE879571A (en) 1980-02-15
NO155652B (en) 1986-01-26
DK150978B (en) 1987-10-05
DE2943588A1 (en) 1980-06-26
NL7908336A (en) 1980-06-16
ES485983A1 (en) 1980-09-01
FR2443928B1 (en) 1984-04-27
FR2443928A1 (en) 1980-07-11
NL185757C (en) 1990-07-16
CH635776A5 (en) 1983-04-29
IT7805282A0 (en) 1978-12-12
GB2044672A (en) 1980-10-22

Similar Documents

Publication Publication Date Title
NO792434L (en) PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF LOWER BODIES
DK389478A (en) THERMOPLASTIC AROMATIC POLYETHERKETTONS AND METHODS OF MANUFACTURE THEREOF
NO811759L (en) PROCEDURE FOR THE PREPARATION OF A STERFUL ARTICLE AND APPARATUS
NO801908L (en) PROCEDURE FOR CROSS-BONDING POLYMERS AND APPLICATIONS THEREOF
DK358280A (en) PROCEDURE AND MEANS OF PACKAGING
IT1057104B (en) PROCEDURE AND DEVICE FOR THE MANUFACTURE OF PLASTIC JOINTS FOR PIPES
IL55017A0 (en) Flexible collapsible containers and method of molding them
NO793836L (en) PROCEDURE AND DEVICE FOR BUILDING OF GLASSBOARDS
NO148842C (en) METHOD AND APPARATUS FOR CONTINUOUS PREPARATION OF EXPANDED PHENOLIC RESIN PLATES
NO150879C (en) PROCEDURE FOR THE PREPARATION OF D-CAMFORATE OF L-CARNITINAMIDE AND D-CAMFORATE OF D-CARNITINAMIDE
DK467279A (en) METHOD OF METHANGAS PREPARATION AND DEVICE FOR IMPLEMENTING THE PROCEDURE
NO145415C (en) L PROCEDURE AND DEVICE FOR IDENTIFICATION OF RADARMAA
NO793328L (en) PROCEDURE AND DEVICE FOR CONNECTING PLATES OF EXPANDED THERMOPLASTIC RESIN
JPS52151458A (en) Tab joint and method of connecting plate element by using tab joint
DK132779A (en) PROCEDURE FOR THE PREPARATION OF CISHEXAHYDRODIBENZOEPYRANONES AND TETRAHYDROBENZOXOINES
DK502180A (en) PLASTIC CONTAINER AND PROCEDURE FOR THE MANUFACTURING OF SUCH A
DK147914C (en) LITHIUM PSEUDOMONATE AND PROCEDURE FOR PREPARING THEREOF
GB1555996A (en) Joints and connecting devices thereofor
NO794149L (en) PROCEDURE FOR RECOVERY AND RECYCLING OF NICKEL ELECTROPLATING BATHROOMS
PL204925A1 (en) METHOD AND DEVICE FOR THE PRODUCTION OF CROSS-LINED THERMOPLASTIC MATERIALS
NO792852L (en) PROCEDURE FOR MANUFACTURING PLASTICS AND PLASTICS
NO148726C (en) PROCEDURE AND APPARATUS FOR AA DETERMINE THE QUANTITY OF A CHEMICAL DEPOSITOR ON A ROADWAY
DK151570C (en) DESCRIPTION OF SULFURES AND DESCRIPTION
DK224279A (en) POLYYODENZENE DERIVATIVES AND METHODS OF MANUFACTURE THEREOF
SE416605B (en) PROCEDURE FOR CRYPSTATED TRANSFER OF INFORMATION AND EQUIPMENT FOR EXECUTION OF THE PROCEDURE