AR220457A1 - Procedimiento para formar una estructura emparedada de nucleo de espuma resinosa rigida,y la estructura asi formada - Google Patents
Procedimiento para formar una estructura emparedada de nucleo de espuma resinosa rigida,y la estructura asi formadaInfo
- Publication number
- AR220457A1 AR220457A1 AR28070580A AR28070580A AR220457A1 AR 220457 A1 AR220457 A1 AR 220457A1 AR 28070580 A AR28070580 A AR 28070580A AR 28070580 A AR28070580 A AR 28070580A AR 220457 A1 AR220457 A1 AR 220457A1
- Authority
- AR
- Argentina
- Prior art keywords
- resinose
- rigid
- procedure
- forming
- wall structure
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered 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
- B32B5/22—Layered 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
- B32B5/24—Layered 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 one layer being a fibrous or filamentary layer
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/086—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers and with one or more layers of pure plastics material, e.g. foam layers
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/24—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered 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
- B32B5/18—Layered 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 features of a layer of foamed material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
- E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
- B29C70/865—Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
-
- 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
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/06—Open cell foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
-
- 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
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249962—Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Moulding By Coating Moulds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/030,209 US4196251A (en) | 1979-04-16 | 1979-04-16 | Rigidized resinous foam core sandwich structure |
Publications (1)
Publication Number | Publication Date |
---|---|
AR220457A1 true AR220457A1 (es) | 1980-10-31 |
Family
ID=21853071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AR28070580A AR220457A1 (es) | 1979-04-16 | 1980-04-16 | Procedimiento para formar una estructura emparedada de nucleo de espuma resinosa rigida,y la estructura asi formada |
Country Status (11)
Country | Link |
---|---|
US (1) | US4196251A (es) |
EP (1) | EP0027118A1 (es) |
JP (1) | JPS56500364A (es) |
AR (1) | AR220457A1 (es) |
AU (1) | AU5747180A (es) |
BE (1) | BE882799A (es) |
CA (1) | CA1124164A (es) |
ES (1) | ES490581A1 (es) |
IT (1) | IT1127023B (es) |
WO (1) | WO1980002253A1 (es) |
ZA (1) | ZA801456B (es) |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4356090A (en) * | 1981-09-28 | 1982-10-26 | Marine Construction & Design Co. | Flow-through oil/water separation filter |
CA1185775A (en) * | 1981-12-16 | 1985-04-23 | Ian W. Tonge | Composite lining material |
GB8416254D0 (en) * | 1984-06-26 | 1984-08-01 | Equus Polymer Ltd | Stitched rubber equipment for horses |
IT1218653B (it) * | 1987-04-08 | 1990-04-19 | Ferrari Spa Esercizio Fabbrich | Elemento strutturale portante composito per carrozzerie di veicoli e procedimento per la sua fabbricazione |
IT1208428B (it) * | 1987-05-05 | 1989-06-12 | Alusuisse Italia S P A Ferrari | Elemento strutturale portante composito e procedimento per la sua fabbricazione in particolare per la realizzazione di carrozzerie di veicoli |
DE3718676A1 (de) * | 1987-06-04 | 1988-12-22 | Mtu Muenchen Gmbh | Formkoerper und verfahren zu seiner herstellung |
GB8822521D0 (en) * | 1988-09-26 | 1988-11-02 | Tech Textiles Ltd | Method of producing formable composite material |
US5304339A (en) * | 1990-05-23 | 1994-04-19 | Le Comte Adolf | Method for manufacturing a large-sized object of fiber reinforced synthetic resin |
FR2695864B1 (fr) * | 1992-09-22 | 1994-11-25 | Joseph Maquet | Panneau constitué d'au moins trois éléments sensiblement plats et d'une structure mécanique, notamment de Type Triangle, et procédé de fabrication du panneau. |
GB2274857B (en) * | 1993-01-19 | 1997-01-15 | Iain Norman Bridge | Composite structure |
DE69415497T2 (de) * | 1994-03-17 | 1999-07-22 | Joseph Dunkerque Maquet | Platte bestehend aus zumindest drei flachen Elementen |
FR2718670B1 (fr) * | 1994-04-18 | 1996-06-14 | Aerospatiale | Pièce comportant au moins une plaque de revêtement de matière composite et procédé pour réaliser ladite pièce. |
USRE39554E1 (en) | 1994-08-29 | 2007-04-10 | Spectrum Solutions, Ltd. | Reinforced composite structure |
DE19521946A1 (de) * | 1995-06-16 | 1996-12-19 | Liba Maschf | Verfahren zum Verbinden einer insbesondere nichttextilen Zellenstruktur mit textilen Deckschichten |
US6027798A (en) * | 1995-11-01 | 2000-02-22 | The Boeing Company | Pin-reinforced sandwich structure |
US5876652A (en) * | 1996-04-05 | 1999-03-02 | The Boeing Company | Method for improving pulloff strength in pin-reinforced sandwich structure |
US6187411B1 (en) * | 1996-10-04 | 2001-02-13 | The Boeing Company | Stitch-reinforced sandwich panel and method of making same |
IT1295156B1 (it) * | 1997-06-27 | 1999-04-30 | Glauco Corbellini | Tavola armonica in materiale composito |
NL1007281C2 (nl) * | 1997-10-15 | 1999-04-19 | Syncoglas Sa Nv | Driedimensionaal versterkingsmateriaal. |
US6740381B2 (en) * | 1999-12-28 | 2004-05-25 | Webcore Technologies, Inc. | Fiber reinforced composite cores and panels |
US8419883B2 (en) | 2000-12-27 | 2013-04-16 | Milliken & Company | Fiber reinforced composite cores and panels |
US7785693B2 (en) | 2001-04-06 | 2010-08-31 | Ebert Composites Corporation | Composite laminate structure |
US6676785B2 (en) * | 2001-04-06 | 2004-01-13 | Ebert Composites Corporation | Method of clinching the top and bottom ends of Z-axis fibers into the respective top and bottom surfaces of a composite laminate |
US7105071B2 (en) * | 2001-04-06 | 2006-09-12 | Ebert Composites Corporation | Method of inserting z-axis reinforcing fibers into a composite laminate |
US20050025948A1 (en) * | 2001-04-06 | 2005-02-03 | Johnson David W. | Composite laminate reinforced with curvilinear 3-D fiber and method of making the same |
US6645333B2 (en) | 2001-04-06 | 2003-11-11 | Ebert Composites Corporation | Method of inserting z-axis reinforcing fibers into a composite laminate |
US7731046B2 (en) * | 2001-04-06 | 2010-06-08 | Ebert Composites Corporation | Composite sandwich panel and method of making same |
US7056576B2 (en) * | 2001-04-06 | 2006-06-06 | Ebert Composites, Inc. | 3D fiber elements with high moment of inertia characteristics in composite sandwich laminates |
US6964809B2 (en) * | 2002-02-15 | 2005-11-15 | Pedro M. Buarque de Macedo | Large high density foam glass tile |
FR2836690B1 (fr) * | 2002-03-04 | 2004-08-27 | Eads Launch Vehicles | Procede pour la realisation d'une piece monolithique composite thermostructurale a double paroi et piece obtenue |
MXPA04011574A (es) * | 2002-05-22 | 2005-03-07 | Groep Stevens Int Nv | Unidad laminar mixta rizada. |
US20050118448A1 (en) * | 2002-12-05 | 2005-06-02 | Olin Corporation, A Corporation Of The Commonwealth Of Virginia | Laser ablation resistant copper foil |
EP1617993B1 (en) * | 2003-03-28 | 2014-05-07 | Milliken & Company | Fiber reinforced composite cores and panels |
US7311965B2 (en) * | 2003-07-22 | 2007-12-25 | Pedro M. Buarque de Macedo | Strong, high density foam glass tile having a small pore size |
US8453400B2 (en) * | 2003-07-22 | 2013-06-04 | Pedro M. Buarque de Macedo | Prestressed, strong foam glass tiles |
EP1596024A1 (en) * | 2004-05-11 | 2005-11-16 | Groep Stevens International, Naamloze Vennootschap | Reinforced sandwich panel |
DE102005024408A1 (de) * | 2005-05-27 | 2006-11-30 | Airbus Deutschland Gmbh | Verstärkung von Schaumwerkstoffen |
US7695560B1 (en) | 2005-12-01 | 2010-04-13 | Buarque De Macedo Pedro M | Strong, lower density composite concrete building material with foam glass aggregate |
WO2008049469A1 (de) * | 2006-10-25 | 2008-05-02 | SGL Kümpers GmbH & Co.KG | Sandwichstruktur aus mittels füllmaterialien beabstandeten textilen flächengebilden für die anwendung in harzgebundenen schalenartigen bauteilen |
DE102006056570B3 (de) * | 2006-11-30 | 2008-04-10 | Airbus Deutschland Gmbh | Nähvorrichtung zum Einziehen von Faserbündeln |
DE102007055684A1 (de) * | 2007-11-21 | 2009-06-10 | Airbus Deutschland Gmbh | Vorrichtung zur Herstellung eines verstärkten Schaumwerkstoffes |
BR112012007510A2 (pt) * | 2009-10-01 | 2016-11-22 | Webcore Ip Inc | núcleos e painéis compostos |
US8389104B2 (en) | 2009-10-02 | 2013-03-05 | Milliken & Company | Composite cores and panels |
US8663791B2 (en) | 2011-04-04 | 2014-03-04 | Milliken & Company | Composite reinforced cores and panels |
CN103132611A (zh) * | 2011-11-22 | 2013-06-05 | 苏畅 | 一种双面增强保温板 |
GB201322276D0 (en) * | 2013-12-17 | 2014-01-29 | Rolls Royce Plc | A Reinforcing pin for a laminated composite structure and related methods |
JP7005525B2 (ja) | 2016-05-25 | 2022-02-10 | ビーエーエスエフ ソシエタス・ヨーロピア | 繊維強化発泡体の変換 |
CN109196031B (zh) | 2016-05-25 | 2022-01-28 | 巴斯夫欧洲公司 | 通过模塑发泡法制得的纤维增强的反应性泡沫 |
WO2021019288A1 (en) * | 2019-08-01 | 2021-02-04 | Almond Marc | Reinforced structural insulated panel |
WO2021019247A1 (en) * | 2019-08-01 | 2021-02-04 | Almond Marc | Structural insulated panel and inter-panel connection method |
CN111238307B (zh) * | 2020-03-09 | 2022-12-06 | 北方长龙新材料技术股份有限公司 | 一种一体式导弹贮运发射箱及其制造方法 |
GB2615727B (en) | 2021-07-29 | 2024-02-21 | Alex Strange Benjamin | Settable sheet material |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692219A (en) * | 1951-07-05 | 1954-10-19 | Owens Corning Fiberglass Corp | Structural panel |
US3193438A (en) * | 1961-08-16 | 1965-07-06 | Freeman Chemical Corp | Impregnated foamed resin and use thereof |
US3451885A (en) * | 1962-07-09 | 1969-06-24 | Union Carbide Corp | Needled composite web and method of making the same |
US3269887A (en) * | 1963-08-07 | 1966-08-30 | Dow Chemical Co | Settable, flexible, foamed resins |
US3655471A (en) * | 1966-07-05 | 1972-04-11 | Lawrence W Healy | Method of producing a fibrous sheet composition |
US3534852A (en) * | 1968-05-16 | 1970-10-20 | Diamond Shamrock Corp | Use of nonwoven linings for luggage,musical cases and the like |
US3944704A (en) * | 1974-10-31 | 1976-03-16 | The John Z. Delorean Corporation | Composite structure |
-
1979
- 1979-04-16 US US06/030,209 patent/US4196251A/en not_active Expired - Lifetime
-
1980
- 1980-03-10 WO PCT/US1980/000244 patent/WO1980002253A1/en not_active Application Discontinuation
- 1980-03-10 JP JP50079680A patent/JPS56500364A/ja active Pending
- 1980-03-11 CA CA347,442A patent/CA1124164A/en not_active Expired
- 1980-03-12 ZA ZA00801456A patent/ZA801456B/xx unknown
- 1980-03-31 IT IT4829580A patent/IT1127023B/it active
- 1980-04-15 ES ES490581A patent/ES490581A1/es not_active Expired
- 1980-04-15 BE BE0/200236A patent/BE882799A/fr unknown
- 1980-04-15 AU AU57471/80A patent/AU5747180A/en not_active Abandoned
- 1980-04-16 AR AR28070580A patent/AR220457A1/es active
- 1980-11-04 EP EP80900694A patent/EP0027118A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JPS56500364A (es) | 1981-03-26 |
AU5747180A (en) | 1980-10-23 |
BE882799A (fr) | 1980-07-31 |
IT8048295A0 (it) | 1980-03-31 |
IT1127023B (it) | 1986-05-21 |
CA1124164A (en) | 1982-05-25 |
EP0027118A1 (en) | 1981-04-22 |
US4196251A (en) | 1980-04-01 |
WO1980002253A1 (en) | 1980-10-30 |
ZA801456B (en) | 1981-03-25 |
ES490581A1 (es) | 1981-04-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AR220457A1 (es) | Procedimiento para formar una estructura emparedada de nucleo de espuma resinosa rigida,y la estructura asi formada | |
IT1143005B (it) | Perfezionamento negli espansi di poliisocianurati | |
ES485869A0 (es) | Un procedimiento para la fabricacion de una espuma de poliu-retano | |
ES518768A0 (es) | Procedimiento y dispositivo para la fabricacion de una cremallera. | |
NO905285D0 (no) | Fremgangsmaate for fremstilling av skumstoffer. | |
ES497583A0 (es) | Perfeccionamientos en los aparatos para fijar cierres,boto- nes y similares | |
MX22954A (es) | Compuestos de quinolona y un procedimiento para su preparacion. | |
ES495076A0 (es) | Un procedimiento para la preparacion de acetofenonas substi-tuidas | |
BR8000182A (pt) | Dispositivo para a fabricacao descontinua de material espumoso em blocos | |
DK151580A (da) | Varmereflekterende tapet eller vaegbeklaedning | |
ES525823A0 (es) | Un procedimiento para la fabricacion de un articulo espumado de celdilla cerrada | |
ES489470A0 (es) | Un procedimiento para la preparacion de 9-aminoalquilfluore-no | |
ES530081A0 (es) | Un procedimiento para la preparacion de una macrolida | |
ES496354A0 (es) | Un procedimiento para la preparacion de nuevas s- triazolo 4,3-b piridazinas 3,6,7,8- sustituidas. | |
MX9100743A (es) | Compuestos heterociclicos y procedimiento para su preparacion | |
ES496484A0 (es) | Un procedimiento para la preparacion de nuevos 1,2,4-triazo-les | |
BR8000183A (pt) | Dispositivo para a preparacao descontinua de espuma em bloco | |
MX9100672A (es) | Procedimiento mejorado para preparar una espuma fenolica y la espuma fenolica asi obtenida. | |
ES493878A0 (es) | Procedimiento para la fabricacion de un tubito de inflama- cion,abierto por ambos lados,para un detonador de granada demano | |
ES488607A0 (es) | Un procedimiento para la preparacion de cefuroxima sodica o un solvato de la misma | |
ES492956A0 (es) | Mejoras en un procedimiento para la produccion de una cefa- losporina | |
ES489355A0 (es) | Un procedimiento para la preparacion de nuevos piretroides | |
ES530219A0 (es) | Un procedimiento para la preparacion de una macrolida | |
AR223535A1 (es) | Procedimiento para la preparacion de una espuma dotada de forma predeterminada,y producto resultante | |
GB8325046D0 (en) | Expanding mandrels |