BR7501712A - Cabeca injetora aperfeicoada para aplicar um tubo exterior num tubo ou cabo interior e processo para producao do anel de suporte exterior da mesma - Google Patents

Cabeca injetora aperfeicoada para aplicar um tubo exterior num tubo ou cabo interior e processo para producao do anel de suporte exterior da mesma

Info

Publication number: BR7501712A
Authority: BR; Brazil
Prior art keywords: tube; perfected; cable; apply; production
Prior art date: 1974-03-22

Application number

BR1712/75A

Other languages

English (en)

Inventor

W Hegler

R Hegler

Original Assignee

Hegler Wilhelm

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.)

1974-03-22

Filing date

1975-03-21

Publication date

1975-12-23

1975-03-21 Application filed by Hegler Wilhelm filed Critical Hegler Wilhelm

1975-12-23 Publication of BR7501712A publication Critical patent/BR7501712A/pt

Links

238000002347 injection Methods 0.000 title 1
239000007924 injection Substances 0.000 title 1
238000000034 method Methods 0.000 title 1

Classifications

- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
- B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
- B29C48/327—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections with centering 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- 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
- B29L2016/00—Articles with corrugations or pleats

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Manufacturing & Machinery (AREA)
Extrusion Moulding Of Plastics Or The Like (AREA)
Injection Moulding Of Plastics Or The Like (AREA)
Shaping Of Tube Ends By Bending Or Straightening (AREA)
Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Nozzles (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Moulds For Moulding Plastics Or The Like (AREA)
Special Spraying Apparatus (AREA)
Catching Or Destruction (AREA)
Spray Control Apparatus (AREA)
Coating Apparatus (AREA)

BR1712/75A 1974-03-22 1975-03-21 Cabeca injetora aperfeicoada para aplicar um tubo exterior num tubo ou cabo interior e processo para producao do anel de suporte exterior da mesma BR7501712A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2413877A DE2413877C3 (de)	1974-03-22	1974-03-22	Extrusionskopf zum kontinuierlichen Ummanteln eines Rohres oder Kabels

Publications (1)

Publication Number	Publication Date
BR7501712A true BR7501712A (pt)	1975-12-23

Family

ID=5910877

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR1712/75A BR7501712A (pt)	1974-03-22	1975-03-21	Cabeca injetora aperfeicoada para aplicar um tubo exterior num tubo ou cabo interior e processo para producao do anel de suporte exterior da mesma

Country Status (31)

Country	Link
US (1)	US3994644A (pt)
JP (1)	JPS583811B2 (pt)
AR (1)	AR202970A1 (pt)
AT (1)	AT345545B (pt)
BE (1)	BE826976A (pt)
BG (1)	BG28247A3 (pt)
BR (1)	BR7501712A (pt)
CA (1)	CA1034313A (pt)
CH (2)	CH602318A5 (pt)
CS (1)	CS189673B2 (pt)
DD (1)	DD117840A5 (pt)
DE (1)	DE2413877C3 (pt)
DK (1)	DK141809C (pt)
EG (1)	EG12553A (pt)
ES (1)	ES435628A1 (pt)
FI (1)	FI59216C (pt)
FR (1)	FR2264655B1 (pt)
GB (1)	GB1438431A (pt)
HU (1)	HU174317B (pt)
IE (1)	IE41099B1 (pt)
IL (1)	IL46891A (pt)
IN (1)	IN142365B (pt)
IT (1)	IT1034463B (pt)
NL (1)	NL7409521A (pt)
NO (2)	NO142949C (pt)
PL (1)	PL101402B1 (pt)
SE (2)	SE405088B (pt)
SU (1)	SU656488A3 (pt)
TR (1)	TR18253A (pt)
YU (2)	YU37439B (pt)
ZA (1)	ZA751811B (pt)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2637995C2 (de) *	1976-08-24	1983-05-26	Hegler, Wilhelm, 8730 Bad Kissingen	Verfahren zur Herstellung von doppelwandigen Kunststoffrohren mit einer ringförmig gewellten Außenwand und einer glatten Innenwand
US4108703A (en) *	1977-05-20	1978-08-22	Kovach Leslie J	Method and apparatus for producing double-walled thermoplastic pipe
AT374737B (de) *	1978-03-30	1984-05-25	Cincinnati Milacron Austria	Spritzkopf
US4305703A (en) *	1980-09-12	1981-12-15	Lupke Manfred Arno Alfred	Composite die assembly for use in the production of thermoplastic tubing
DE3047429C2 (de) *	1980-12-12	1984-09-13	Mannesmann AG, 4000 Düsseldorf	Verfahren zum Ummanteln eines Stahlrohres
US4514243A (en) *	1982-07-09	1985-04-30	Dan T. Moore Co.	Tire for wheelchairs and the like
US4462946A (en) *	1982-10-12	1984-07-31	Goldsworthy Engineering, Inc.	Apparatus and method for producing reinforced plastic composite articles of non-uniform shape and non-uniform volume
SE449456B (sv) *	1983-11-15	1987-05-04	Uponor Ab	Forfarande och anordning for framstellning av ror varvid formbacksdelarna er delade i formstreckans lengsriktning
US4657718A (en) *	1985-02-22	1987-04-14	The Firestone Tire & Rubber Company	Coextrusion method
SE446954B (sv) *	1985-03-12	1986-10-20	Uponor Ab	Sett vid extrudering av ett dubbelveggigt plastror samt extruderingsverktyg for utovning av settet
SE8501212D0 (sv) *	1985-03-12	1985-03-12	Uponor Ab	Sett vid tillverkning av vermeisolerat ror
US4770618A (en) *	1986-01-15	1988-09-13	Lupke Manfred Arno Alfred	Extrusion die for two-ply plastic tubing
US4731002A (en) *	1986-11-19	1988-03-15	American Maplan Corporation	Triple-wall foam coextrusion apparatus
US4846648A (en) *	1986-11-19	1989-07-11	American Maplan Corporation	Triple-wall foam coextrusion apparatus
DE3737588C3 (de) *	1987-11-05	1993-12-23	Corma Inc	Verfahren zum Herstellen eines innen glatten, außen gerippten Rohres aus extrudierbarem Kunststoff sowie Vorrichtung zur Durchführung des Verfahrens
US5169421A (en) *	1990-09-15	1992-12-08	The Furukawa Electric Co., Ltd.	Method of manufacturing silica glass optical waveguide preform
CA2223520C (en) *	1991-11-22	2001-02-06	Manfred A. A. Lupke	Method and apparatus of forming profiled pipe
US5531583A (en) *	1993-04-15	1996-07-02	Cullom Machine Tool & Die, Inc.	Vacuum mold blocks with cooling for corrugated tubing
DE9311140U1 (de) *	1993-07-26	1993-09-09	Drossbach GmbH & Co KG, 86641 Rain	Vorrichtung zum Herstellen von Wellrohren aus thermoplastischem Kunststoff
DE29813235U1 (de)	1998-03-09	1998-12-03	Lupke, Manfred Arno Alfred, Concord, Ontario	Vorrichtung zum Formen von Kunststoffrohren
DE10062590B4 (de) *	2000-12-15	2005-12-29	Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG	Düsenanordnung zur Coextrusion
CA2588058C (en) *	2007-05-08	2014-07-15	Stefan A. Lupke	Alignable cooling plug for extruder
DE102008056797A1 (de) *	2008-11-11	2010-05-12	Kmk Lizence Ltd.	Vorrichtung sowie Verfahren zum Herstellen von Tuben
CN108177320B (zh) *	2018-02-10	2019-12-31	山东大学	一种纤维增强圆管类型材复合挤压装置及其挤压方法
CN113290820B (zh) *	2021-05-25	2023-03-10	昆明电立电缆有限公司	一种电缆挤出双层免调偏共挤机头及其加工工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB237824A (en)	1925-02-21	1925-08-06	Louis Bolle	Improvements relating to extrusion apparatus for making tubes
US2766481A (en) *	1952-08-28	1956-10-16	Western Electric Co	Methods of and apparatus for extruding cellular plastics
DE1729162U (de)	1955-12-05	1956-08-30	Willi Kirchner	Tubenkippverschluss mit halterung am tubenhals.
US2893056A (en) *	1956-05-08	1959-07-07	Western Electric Co	Apparatus for extruding plastic material
DE2030578A1 (de) *	1970-06-20	1971-12-30	Bayer	Verfahren und Vorrichtung zum kontinuierlichen Herstellen und/oder Umhüllen von Strangprofilen
US3737260A (en) *	1970-11-12	1973-06-05	D Kaye	Counter flow genka head
DE2138437A1 (de) *	1971-07-31	1973-02-15	Wilhelm Hegler	Vorrichtung zur herstellung von kunststoffrohren mit schraubenfoermig gewundener querwand
JPS5137938B2 (pt) *	1971-12-29	1976-10-19
US3860686A (en) *	1972-06-07	1975-01-14	Western Electric Co	Method of and apparatus for extruding plastic materials
US3833325A (en) *	1972-08-23	1974-09-03	J Ramsey	Balanced flow extrusion head

1974
- 1974-03-22 DE DE2413877A patent/DE2413877C3/de not_active Expired
- 1974-05-29 AT AT446274A patent/AT345545B/de not_active IP Right Cessation
- 1974-06-07 SE SE7407553A patent/SE405088B/xx not_active IP Right Cessation
- 1974-06-24 NO NO742286A patent/NO142949C/no unknown
- 1974-07-08 TR TR18253A patent/TR18253A/xx unknown
- 1974-07-10 GB GB3063174A patent/GB1438431A/en not_active Expired
- 1974-07-15 NL NL7409521A patent/NL7409521A/xx not_active Application Discontinuation
- 1974-08-09 FR FR7428379A patent/FR2264655B1/fr not_active Expired
- 1974-10-21 CA CA211,789A patent/CA1034313A/en not_active Expired
- 1974-11-06 CS CS747564A patent/CS189673B2/cs unknown
- 1974-12-04 US US05/529,657 patent/US3994644A/en not_active Expired - Lifetime
1975
- 1975-03-06 CH CH736477A patent/CH602318A5/xx not_active IP Right Cessation
- 1975-03-06 CH CH286275A patent/CH602316A5/xx not_active IP Right Cessation
- 1975-03-10 DK DK96775A patent/DK141809C/da active
- 1975-03-11 IN IN471/CAL/75A patent/IN142365B/en unknown
- 1975-03-14 BG BG029301A patent/BG28247A3/xx unknown
- 1975-03-14 AR AR257970A patent/AR202970A1/es active
- 1975-03-14 ES ES435628A patent/ES435628A1/es not_active Expired
- 1975-03-14 JP JP50030997A patent/JPS583811B2/ja not_active Expired
- 1975-03-19 YU YU0678/75A patent/YU37439B/xx unknown
- 1975-03-20 PL PL1975178934A patent/PL101402B1/pl unknown
- 1975-03-20 FI FI750829A patent/FI59216C/fi not_active IP Right Cessation
- 1975-03-20 DD DD184903A patent/DD117840A5/xx unknown
- 1975-03-21 IT IT21495/75A patent/IT1034463B/it active
- 1975-03-21 IE IE638/75A patent/IE41099B1/xx unknown
- 1975-03-21 BR BR1712/75A patent/BR7501712A/pt unknown
- 1975-03-21 IL IL46891A patent/IL46891A/en unknown
- 1975-03-21 ZA ZA00751811A patent/ZA751811B/xx unknown
- 1975-03-21 BE BE154579A patent/BE826976A/xx unknown
- 1975-03-21 HU HU75HE686A patent/HU174317B/hu unknown
- 1975-03-21 SU SU752116338A patent/SU656488A3/ru active
- 1975-03-22 EG EG145/75A patent/EG12553A/xx active
1977
- 1977-04-20 SE SE7704542A patent/SE7704542L/xx unknown
1978
- 1978-04-03 NO NO781160A patent/NO781160L/no unknown
1981
- 1981-02-12 YU YU0363/81A patent/YU37282B/xx unknown

Also Published As

Publication number	Publication date
CH602316A5 (pt)	1978-07-31
DK96775A (pt)	1975-09-23
NO742286L (pt)	1975-09-23
DK141809C (da)	1980-11-10
FI59216C (fi)	1981-07-10
US3994644A (en)	1976-11-30
IE41099B1 (en)	1979-10-24
BG28247A3 (bg)	1980-03-25
JPS583811B2 (ja)	1983-01-22
AT345545B (de)	1978-09-25
NL7409521A (nl)	1975-09-24
ZA751811B (en)	1976-02-25
CS189673B2 (en)	1979-04-30
SE7407553L (pt)	1975-09-23
DE2413877B2 (de)	1978-06-01
SE405088B (sv)	1978-11-20
YU36381A (en)	1983-04-27
CH602318A5 (pt)	1978-07-31
FR2264655B1 (pt)	1977-07-08
NO781160L (no)	1975-09-23
DD117840A5 (pt)	1976-02-05
SU656488A3 (ru)	1979-04-05
BE826976A (fr)	1975-07-16
NO142949C (no)	1980-11-19
ATA446274A (de)	1978-01-15
ES435628A1 (es)	1977-02-01
IE41099L (en)	1975-09-22
FR2264655A1 (pt)	1975-10-17
YU67875A (en)	1983-04-27
SE7704542L (sv)	1977-04-20
YU37439B (en)	1984-08-31
EG12553A (en)	1980-10-31
GB1438431A (en)	1976-06-09
AU7943775A (en)	1976-09-30
HU174317B (hu)	1979-12-28
CA1034313A (en)	1978-07-11
DE2413877A1 (de)	1975-10-02
IL46891A (en)	1977-06-30
IN142365B (pt)	1977-06-25
IT1034463B (it)	1979-09-10
JPS50127958A (pt)	1975-10-08
AR202970A1 (es)	1975-07-31
YU37282B (en)	1984-08-31
IL46891A0 (en)	1975-06-25
PL101402B1 (pl)	1978-12-30
TR18253A (tr)	1976-11-10
DK141809B (da)	1980-06-23
FI750829A7 (pt)	1975-09-23
DE2413877C3 (de)	1979-02-01
FI59216B (fi)	1981-03-31
NO142949B (no)	1980-08-11

Publication	Publication Date	Title
SE412906B (sv)	1980-03-24	Forfarande for framstellning av 3-aryloxi-3-fenylpropylaminer med farmakologisk verkan
IT1006710B (it)	1976-10-20	Procedimento perfezionato di aro matizzazione
BR6349779D0 (pt)	1973-07-03	Um processo para a preparacao de derivados de lumilisergo
ZA751811B (en)	1976-02-25	An extruder head for extruding an outer tube an inner tube or cable
BR6349165D0 (pt)	1973-08-02	Processo de preparacao de novo antibiotico
BR7108309D0 (pt)	1973-07-03	Processo para a preparacao de cefalosporina
BR7503250A (pt)	1976-04-27	Processo para a preparacao de eteres glicidicos
FR1522202A (fr)	1968-04-26	Procédé de préparation de nouveaux antibiotiques
BR7205265D0 (pt)	1973-06-07	Processo de formar uma matriz e matriz aperfeicoada
BR7405237D0 (pt)	1975-01-21	Processo de preparacao da o odietilditiofosforilmetil-3 clro-6 benzoxazolona (fosalona)
BR7407271A (pt)	1976-05-11	Processo para a preparacao de 1-aminoantraquinona pura
CH484900A (de)	1970-01-31	Verfahren zur Herstellung N-aralkylsubstituierter Lactame und cyclischer Harnstoffe
IT998221B (it)	1976-01-20	Processo per la preparazione di aggregati
BR6354617D0 (pt)	1973-07-12	Processo para a preparacao de penicilinas d-amino substituidas
DE2053043B2 (de)	1973-07-12	Ferfahren zur herstellung einer waessrigen magnesiumperchloratloesung hohen reinheitsgrades
BR7602594A (pt)	1976-11-23	Processo para a preparacao continua de solucoes organicas de acidos percarboxilicos
BR7504705A (pt)	1976-07-06	Processo de preparacao de diclorosilana e feniltriclorosilana e o emprego da diclorosilana obtida
BR7409915A (pt)	1976-05-25	Catalisador de hidratacao de olefina aperfeicoado e processo de preparar o mesmo
CH482750A (de)	1969-12-15	Verfahren zur Herstellung schwer brennbarer Hohlkörper
BR7407182D0 (pt)	1975-06-24	Processo para a preparacao de 1-nitro-antraquinona pura
BR7204341D0 (pt)	1973-05-10	Processo para o alvejamento otico de corpos de moldagem
BR7306847D0 (pt)	1974-07-18	Processo para desalogenacao do anel perimidetico de um composto
IT1028016B (it)	1979-01-30	Processo per la preparazione di indoli idrogenati
BR7303847D0 (pt)	1974-01-08	Processo de preparacao de alcoxi-4-naftalimido-4 pirazolios
BR7307132D0 (pt)	1974-07-18	Processo de preparacao de acidos alcanodicarboxilicos