ZA951270B - Process for insulating pipes using polyurethane rigid foams by the rotational casting process - Google Patents

Process for insulating pipes using polyurethane rigid foams by the rotational casting process

Info

Publication number
ZA951270B
ZA951270B ZA951270A ZA951270A ZA951270B ZA 951270 B ZA951270 B ZA 951270B ZA 951270 A ZA951270 A ZA 951270A ZA 951270 A ZA951270 A ZA 951270A ZA 951270 B ZA951270 B ZA 951270B
Authority
ZA
South Africa
Prior art keywords
mol
rotational casting
rigid foams
polyurethane rigid
insulating pipes
Prior art date
Application number
ZA951270A
Other languages
English (en)
Inventor
Norbert Eise
Lutz-Peter Godthardt
Peter Haas
Original Assignee
Bayer Ag
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 Bayer Ag filed Critical Bayer Ag
Publication of ZA951270B publication Critical patent/ZA951270B/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6614—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6622—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping 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
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3271—Hydroxyamines
    • C08G18/3296—Hydroxyamines being in latent form
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Thermal Insulation (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Molding Of Porous Articles (AREA)
ZA951270A 1994-02-17 1995-02-16 Process for insulating pipes using polyurethane rigid foams by the rotational casting process ZA951270B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4405061A DE4405061A1 (de) 1994-02-17 1994-02-17 Verfahren zur Isolierung von Rohren mit Polyurethan-Hartschaumstoffen nach dem Rotationsgußverfahren

Publications (1)

Publication Number Publication Date
ZA951270B true ZA951270B (en) 1995-10-22

Family

ID=6510484

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA951270A ZA951270B (en) 1994-02-17 1995-02-16 Process for insulating pipes using polyurethane rigid foams by the rotational casting process

Country Status (17)

Country Link
US (1) US5587117A (ko)
EP (1) EP0668306B1 (ko)
JP (1) JPH07241858A (ko)
KR (1) KR100329132B1 (ko)
AT (1) ATE167883T1 (ko)
AU (1) AU683970B2 (ko)
BR (1) BR9500651A (ko)
CA (1) CA2142406A1 (ko)
DE (2) DE4405061A1 (ko)
DK (1) DK0668306T3 (ko)
ES (1) ES2118455T3 (ko)
FI (1) FI950667A (ko)
GR (1) GR3027664T3 (ko)
NO (1) NO306785B1 (ko)
RU (1) RU2144052C1 (ko)
UA (1) UA27147C2 (ko)
ZA (1) ZA951270B (ko)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5789451A (en) * 1996-07-29 1998-08-04 The Dow Chemcial Company Alkanolamine/carbon dioxide adduct and polyurethane foam therewith
DE29615423U1 (de) * 1996-09-05 1997-02-20 BRUGG Rohrsysteme GmbH, 31515 Wunstorf Wärmeisoliertes Leitungsrohr
US7074844B2 (en) * 2000-03-17 2006-07-11 Yamaha Corporation Adhesives
DE20011306U1 (de) 2000-06-27 2000-12-28 BRUGG Rohrsysteme GmbH, 31515 Wunstorf Flexibles wärmeisoliertes Leitungsrohr
FR2816030B1 (fr) * 2000-10-27 2003-05-16 Atofina Utilisation d'une composition d'isolation thermique pour l'isolation de canalisations contenues dans une conduite de transfert de produits petroliers
US6634390B2 (en) 2000-12-21 2003-10-21 Peter R. Toth Insulation cover
DE10318836A1 (de) * 2003-04-25 2004-11-11 Voith Paper Patent Gmbh Verfahren zur Beschichtung eines zylindrischen Körpers
GB0313275D0 (en) * 2003-06-09 2003-07-16 Wood Ltd E Renovating water pipelines
GB2399305B (en) * 2003-06-09 2006-02-22 Wood Ltd E Pipe renovating method
US6989061B2 (en) * 2003-08-22 2006-01-24 Kastalon, Inc. Nozzle for use in rotational casting apparatus
US7270711B2 (en) * 2004-06-07 2007-09-18 Kastalon, Inc. Nozzle for use in rotational casting apparatus
US7041171B2 (en) * 2003-09-10 2006-05-09 Kastalon, Inc. Nozzle for use in rotational casting apparatus
ES2309733T5 (es) * 2004-03-11 2013-02-11 Dow Global Technologies Llc Espumas rígidas de poliuretano con alta reactividad, para unión
US7824595B2 (en) * 2004-08-13 2010-11-02 Perma-Pipe, Inc. Method and system for cast molding a fluid conduit
US7714030B2 (en) * 2005-09-15 2010-05-11 Dow Global Technologies Inc. Attached, high reactivity rigid polyurethane foams containing oxazolidone groups
DE102006020897A1 (de) * 2006-05-05 2007-11-08 Voith Patent Gmbh PU-Walze
US20080072988A1 (en) * 2006-08-22 2008-03-27 Perma-Pipe, Inc. Glass Syntactic Polyurethane Insulated Product
DE102007042781A1 (de) * 2007-09-07 2009-03-12 Voith Patent Gmbh PU-Walze
DE102009013872B4 (de) * 2009-03-17 2018-02-22 Oleksandr Gitelman Verfahren und Vorrichtung zur Wärme- und Feuchtigkeitsisolierung von Medienrohren mit einem sekundären Polyamidschaum
BR112013000367A2 (pt) 2010-07-08 2017-05-16 Dow Global Technologies Llc método para vedar ou isolar uma peça de veículo ou um painel de isolamento térmico, composição de poliisocianato e espuma
DE102011078768A1 (de) 2011-07-07 2013-01-10 Bayer Materialscience Aktiengesellschaft Verfahren zum Ausfüllen von Hohl- und Zwischenräumen mit duroplastischen Polyurethanschaumstoffen
EP2736694B1 (en) 2011-07-26 2019-07-10 Dow Global Technologies LLC Method for filling hollow cavities with polymer foam
US10208154B2 (en) * 2016-11-30 2019-02-19 Rohm And Haas Electronic Materials Cmp Holdings, Inc. Formulations for chemical mechanical polishing pads and CMP pads made therewith
CN109679130B (zh) * 2017-10-19 2021-09-07 山东理工大学 包含六氟丁烯和有机醇胺盐化合物的复合发泡剂

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797981A (en) * 1969-04-10 1974-03-19 Shell Oil Co Apparatus for continuously producing tubular foamed polyurethane insulation
US3635908A (en) * 1969-11-10 1972-01-18 Basf Wyandotte Corp Process of preparing polyurethane-urea thermoplastic products base on a polyamine carbamate as chain extender
AU3752771A (en) * 1971-01-05 1973-07-05 Dunlop Australia Limited Cellular polymers
JPS5137111B2 (ko) * 1972-06-13 1976-10-13
JPS4952265A (ko) * 1972-09-19 1974-05-21
US4189544A (en) * 1979-02-21 1980-02-19 The Upjohn Company Polyisocyanurate polymers prepared using carbamate modifier
US4371629A (en) * 1980-09-29 1983-02-01 Texaco Inc. Preparation of a semiflexible energy management polyether polyurethane foam using as a crosslinker-surfactant an ethylene oxide adduct of a Mannich condensate prepared from the reaction of nonyl phenol, diethanolamine and formaldehyde
SE434815B (sv) * 1982-02-23 1984-08-20 Lindab Nord Ab Sett for framstellning av isolerade rorledningsdetaljer
JPS58183229A (ja) * 1982-04-20 1983-10-26 Kubota Ltd 管外周面への断熱層の形成方法
DE3242925A1 (de) * 1982-11-20 1984-05-24 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von mikrozellularen formkoerpern
DE3312215A1 (de) * 1983-04-05 1984-10-11 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung eines zelligen polyurethans
DE3333464A1 (de) * 1983-09-16 1985-04-11 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von mikrozellularen oder geschaeumten formkoerpern und zur durchfuehrung dieses verfahrens geeignete verbindungen mit gegenueber isocyanatgruppen reaktionsfaehigen gruppen
DE3607964A1 (de) * 1986-03-11 1987-09-17 Bayer Ag Verfahren zur herstellung eines zelligen polyurethans
US5089561A (en) * 1986-05-16 1992-02-18 American Cyanamid Company Alkylcarbamylmethylated aminotriazine crosslinking agents and curable compositions containing the same
DE4118362A1 (de) * 1991-06-05 1992-12-10 Bayer Ag Verfahren zur isolierung von rohren

Also Published As

Publication number Publication date
NO306785B1 (no) 1999-12-20
ES2118455T3 (es) 1998-09-16
US5587117A (en) 1996-12-24
DK0668306T3 (da) 1999-02-15
RU95102317A (ru) 1996-11-20
UA27147C2 (uk) 2000-02-28
NO950579L (no) 1995-08-18
EP0668306A1 (de) 1995-08-23
KR100329132B1 (ko) 2002-09-09
CA2142406A1 (en) 1995-08-18
GR3027664T3 (en) 1998-11-30
EP0668306B1 (de) 1998-07-01
AU683970B2 (en) 1997-11-27
FI950667A (fi) 1995-08-18
NO950579D0 (no) 1995-02-16
AU1221495A (en) 1995-08-24
KR950032355A (ko) 1995-12-20
DE4405061A1 (de) 1995-08-24
BR9500651A (pt) 1995-10-31
RU2144052C1 (ru) 2000-01-10
FI950667A0 (fi) 1995-02-15
ATE167883T1 (de) 1998-07-15
DE59502661D1 (de) 1998-08-06
JPH07241858A (ja) 1995-09-19

Similar Documents

Publication Publication Date Title
ZA951270B (en) Process for insulating pipes using polyurethane rigid foams by the rotational casting process
MY130513A (en) Process for preparing a flexible polyurethane foam
CA2084807A1 (en) Polyurethane foams
CA2292510A1 (en) Method for producing closed-cell rigid polyurethane foams having low thermal conductivity
DK525288A (da) Fremgangsmaade til fremstilling af polyurethanskum
PL326779A1 (en) Method of obtaining flexible soft foamed polyurethane materials
GR3025712T3 (en) Composites for coding containers comprising a dimensionally stable water-blown polyurethane foam by employing lithium salts and a method for its preparation.
MY132361A (en) Process for preparing a flexible polyurethane foam
DK0731120T3 (da) Fremgangsmåde til fremstilling af højelastiske polyurethanskumstoffer
TW336240B (en) A method of producing rigid foamed plastics containing urethane groups
ATE177457T1 (de) Verfahren zur herstellung von zelligen polyurethanen
NZ244115A (en) Production of polyurethane foam from a polyisocyanate and a polyol with water as blowing agent
JPS5598218A (en) Production of polyol composition and foam
ATE284915T1 (de) Verfahren zur herstellung von polyurethan- weichschaumstoffen mit niedriger dichte
MX9706139A (es) Procedimiento para la produccion de una espuma de poliuretano rigida y una composicion para la produccion de una espuma de poliuretano rigida.
PT88558A (pt) Processo para a preparacao de espumas de poliuretano