GB1219023A - Sound insulating products made of mineral fibres and thermoplastic materials - Google Patents

Sound insulating products made of mineral fibres and thermoplastic materials

Info

Publication number
GB1219023A
GB1219023A GB3655468A GB3655468A GB1219023A GB 1219023 A GB1219023 A GB 1219023A GB 3655468 A GB3655468 A GB 3655468A GB 3655468 A GB3655468 A GB 3655468A GB 1219023 A GB1219023 A GB 1219023A
Authority
GB
United Kingdom
Prior art keywords
product
elastomer
fibres
glass
polystyrene
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3655468A
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
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
Priority claimed from FR117218A external-priority patent/FR1539907A/en
Priority claimed from FR151670A external-priority patent/FR94567E/en
Application filed by Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Publication of GB1219023A publication Critical patent/GB1219023A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02—Macromolecular compounds
    • C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/002—Inorganic yarns or filaments
    • D04H3/004—Glass yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
    • E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/0004—Compounds chosen for the nature of their cations
    • C04B2103/0006—Alkali metal or inorganic ammonium compounds
    • C04B2103/0009—Inorganic ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/44—Thickening, gelling or viscosity increasing agents
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52—Sound-insulating materials
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
    • Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
    • Y10T428/249942—Fibers are aligned substantially parallel
    • Y10T428/249946—Glass fiber

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Civil Engineering (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Nonwoven Fabrics (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Paper (AREA)
  • Building Environments (AREA)

Abstract

1,219,023. Laminates. COMPAGNIE DE SAINT-GOBAIN. 31 July, 1968 [8 Aug., 1967; 14 May, 1968 (2)], No. 36554/68. Heading B5N. [Also in Divisions B2 and D1] A sound insulating product consists of mineral fibres, e.g. glass, of length at least a decimeter and diameter of 20-40 Á felted in generally parallel planes and bonded by 20- 50% wt. of elastomer in the form of a latex and an additive which produces chemical linkage between the mineral fibres and the elastomer and/or coagulation of the elastomer. The elastomer can be applied as an aqueous emulsion to the felt and may be polychloroprene, carboxylated polystyrene, polystyrene, polybutadiene or acrylonitrile-butadiene copolymer. The additive may be mercaptosilane resorcinol-formaldehyde resin with acrylic thickener, methyl cellulose, ammonium nitrate, ammonium sulphate or ammonium chloride. The product can be made by collecting the fibres on a conveyer which is subjected to a vacuum, applying the binder, partially drying by squeezing, compression or gravity, further drying, e.g. with infra-red heaters, and crosslinking the polymer binder. If the product is wound into a roll, it can be reheated under tension during unwinding so as to remove transverse folds. The product can have its surface pores filled by coating with (a) binders, e.g. styrene-butadiene copolymer, polystyrene, polyvinyl acetate, bitumen, phenol-formaldehyde resin and starch; (b) fillers such as chalk, silica, diatoniaceous earth and perlite; and (c) mineral or organic fibres of diameter of 1 to 10 Á. Alternatively the product can be coated, preferably after the above mentioned reheating with a paste of vinyl resin which is cooled and set on the felt surface. The product can be laminated with paper, carpet moquette, glass muslin, wood, tiles, metal, glass-resin complexes or polyvinyl chloride using binder e.g. aqueous polyvinyl acetate.
GB3655468A 1967-08-08 1968-07-31 Sound insulating products made of mineral fibres and thermoplastic materials Expired GB1219023A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR117218A FR1539907A (en) 1967-08-08 1967-08-08 Complexes of mineral fibers and thermoplastic materials usable in particular as underlays for coatings intended to provide sound insulation
FR151670A FR94567E (en) 1967-08-08 1968-05-14 Complexes of mineral fibers and thermoplastic materials which can be used in particular as sub-layers for coatings intended to provide sound insulation.
FR151671A FR94568E (en) 1967-08-08 1968-05-14 Complexes of mineral fibers and thermoplastic materials which can be used in particular as sub-layers for coatings intended to provide sound insulation.

Publications (1)

Publication Number Publication Date
GB1219023A true GB1219023A (en) 1971-01-13

Family

ID=27244401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3655468A Expired GB1219023A (en) 1967-08-08 1968-07-31 Sound insulating products made of mineral fibres and thermoplastic materials

Country Status (12)

Country Link
US (1) US3658633A (en)
JP (1) JPS565663B1 (en)
BE (1) BE719191A (en)
CH (1) CH498059A (en)
DK (1) DK141244B (en)
ES (1) ES356998A1 (en)
FI (1) FI50847C (en)
FR (1) FR94568E (en)
GB (1) GB1219023A (en)
NL (1) NL158861B (en)
NO (1) NO134166C (en)
SE (1) SE343158B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329613A1 (en) * 1975-10-31 1977-05-27 Chem Fab Corp Porous sound absorber consisting of substrate coated with polymer - partly filling orifices, pref. glass fabric coated with polymer contg. fluorine
FR2483398A1 (en) * 1980-06-02 1981-12-04 Raybestos Manhattan Inc PROCESS FOR PRODUCING ISOLATION MATERIAL AND THE MATERIAL
EP0061714A2 (en) * 1981-03-26 1982-10-06 Nissan Motor Co., Ltd. Various-covers and method for producing same
GB2139950A (en) * 1983-04-28 1984-11-21 Honda Motor Co Ltd Composite sound and heat insulating board
EP2865799A1 (en) * 2013-10-25 2015-04-29 URSA Insulation, S.A. Method for the manufacture of mineral wool insulation products having low formaldehyde emissions
CN110790564A (en) * 2019-11-20 2020-02-14 林培双 Method for preparing sound-proof brick by using waste asphalt

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL170870C (en) * 1971-05-03 1983-01-03 Koninklijke Hoogovens En Staal METHOD FOR FIRELY COATING OVEN WALLS AND METALLURGIC SHAFT OVEN MADE THEREFORE.
BE791905A (en) * 1971-11-25 1973-05-24 Saint Gobain ELEMENT OF CONSTRUCTION FOR ACOUSTIC INSULATION
JPS5230022Y2 (en) * 1972-11-06 1977-07-08
US3895143A (en) * 1973-03-16 1975-07-15 Nicolet Ind Inc Metal-fiber-latex-containing sheet materials
JPS5346978B2 (en) * 1974-08-02 1978-12-18
US4104426A (en) * 1975-11-28 1978-08-01 Mcdonnell Douglas Corporation Production of muffler material
JPH069968U (en) * 1992-01-27 1994-02-08 忠司 酒井 Date indicator for calendar
US5324337A (en) * 1992-12-29 1994-06-28 Knauf Fiber Glass Gmbh Method for producing fiber product
ES2121668B1 (en) * 1995-07-24 1999-06-16 Insonorizantes Termico Acustic IMPROVEMENTS IN THE MANUFACTURE OF THERMAL ACOUSTIC INSULATION PANELS.
US5787677A (en) * 1995-10-18 1998-08-04 Owens Corning Fiberglas Technology, Inc. Garage door insulation system
US5965851A (en) * 1997-01-28 1999-10-12 Owens Corning Fiberglas Technology, Inc. Acoustically insulated apparatus
US20020096278A1 (en) * 2000-05-24 2002-07-25 Armstrong World Industries, Inc. Durable acoustical panel and method of making the same
SE0003349D0 (en) * 2000-09-18 2000-09-18 Flaekt Ab sound absorber
AU2003272307A1 (en) * 2002-09-13 2004-04-30 Cta Acoustics, Inc. Improved sound absorbing material and process for making
FR2846989B1 (en) * 2002-11-07 2005-07-01 Saint Gobain Isover MINERAL FIBER MATERIAL FOR ABSORBING IMPACT NOISE
DE202005007293U1 (en) * 2005-05-07 2006-09-07 Kronospan Technical Co. Ltd., Engomi Panels with three-layer impact sound absorption
US8734613B1 (en) * 2013-07-05 2014-05-27 Usg Interiors, Llc Glass fiber enhanced mineral wool based acoustical tile
US10464846B2 (en) * 2017-08-17 2019-11-05 Usg Interiors, Llc Method for production of acoustical panels

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1503605A (en) * 1920-04-29 1924-08-05 C F Dahlberg Sound-deadening fiber board
US2285423A (en) * 1937-08-10 1942-06-09 Esser Wilhelm Sound absorbing material
US2666699A (en) * 1947-01-06 1954-01-19 Minnesota Mining & Mfg Precipitating size with chromium and aluminum salts
NL245012A (en) * 1958-11-05
US3121656A (en) * 1961-07-28 1964-02-18 Contours Unltd Moldable composition
US3509012A (en) * 1965-11-22 1970-04-28 Owens Corning Fiberglass Corp Composition and compound for treatment of glass fibers to improve elastomeric bonding
US3513065A (en) * 1967-04-19 1970-05-19 Owens Corning Fiberglass Corp Film faced fibrous body

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2329613A1 (en) * 1975-10-31 1977-05-27 Chem Fab Corp Porous sound absorber consisting of substrate coated with polymer - partly filling orifices, pref. glass fabric coated with polymer contg. fluorine
FR2483398A1 (en) * 1980-06-02 1981-12-04 Raybestos Manhattan Inc PROCESS FOR PRODUCING ISOLATION MATERIAL AND THE MATERIAL
EP0061714A2 (en) * 1981-03-26 1982-10-06 Nissan Motor Co., Ltd. Various-covers and method for producing same
EP0061714A3 (en) * 1981-03-26 1982-11-24 Nissan Motor Company, Limited Various-covers and method for producing same
US4562111A (en) * 1981-03-26 1985-12-31 Nissan Motor Co., Ltd. Various-covers and method for producing same
GB2139950A (en) * 1983-04-28 1984-11-21 Honda Motor Co Ltd Composite sound and heat insulating board
EP2865799A1 (en) * 2013-10-25 2015-04-29 URSA Insulation, S.A. Method for the manufacture of mineral wool insulation products having low formaldehyde emissions
CN110790564A (en) * 2019-11-20 2020-02-14 林培双 Method for preparing sound-proof brick by using waste asphalt

Also Published As

Publication number Publication date
DK141244B (en) 1980-02-11
NL6811269A (en) 1969-02-11
NO134166C (en) 1976-08-25
DE1784432A1 (en) 1972-03-16
NO134166B (en) 1976-05-18
FI50847C (en) 1976-08-10
CH498059A (en) 1970-10-31
SE343158B (en) 1972-02-28
US3658633A (en) 1972-04-25
BE719191A (en) 1969-02-07
JPS565663B1 (en) 1981-02-06
DE1784432B2 (en) 1975-10-02
DK141244C (en) 1980-08-11
ES356998A1 (en) 1970-04-01
FR94568E (en) 1969-09-12
NL158861B (en) 1978-12-15
FI50847B (en) 1976-04-30

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