GB2254570B - Process and apparatus for manufacturing foamed polyurethane - Google Patents

Process and apparatus for manufacturing foamed polyurethane

Info

Publication number
GB2254570B
GB2254570B GB9206880A GB9206880A GB2254570B GB 2254570 B GB2254570 B GB 2254570B GB 9206880 A GB9206880 A GB 9206880A GB 9206880 A GB9206880 A GB 9206880A GB 2254570 B GB2254570 B GB 2254570B
Authority
GB
United Kingdom
Prior art keywords
foamed polyurethane
manufacturing foamed
manufacturing
polyurethane
foamed
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 - Fee Related
Application number
GB9206880A
Other versions
GB2254570A (en
GB9206880D0 (en
Inventor
Gunter Rebers
Wolfgang Cholewczynski
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.)
Kloeckner Ferromatik Desma GmbH
Original Assignee
Kloeckner Ferromatik Desma GmbH
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 Kloeckner Ferromatik Desma GmbH filed Critical Kloeckner Ferromatik Desma GmbH
Publication of GB9206880D0 publication Critical patent/GB9206880D0/en
Publication of GB2254570A publication Critical patent/GB2254570A/en
Application granted granted Critical
Publication of GB2254570B publication Critical patent/GB2254570B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/424—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix with conical screw surrounded by conical casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/40—Mixers with shaking, oscillating, or vibrating mechanisms with an axially oscillating rotary stirrer
    • B01F31/401—Mixers with shaking, oscillating, or vibrating mechanisms with an axially oscillating rotary stirrer for material flowing continuously axially therethrough
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404—Mixing devices specially adapted for foamable substances
    • B29B7/7409—Mixing devices specially adapted for foamable substances with supply of gas
    • B29B7/7414—Mixing devices specially adapted for foamable substances with supply of gas with rotatable stirrer, e.g. using an intermeshing rotor-stator system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/802—Constructions or methods for cleaning the mixing or kneading device
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
GB9206880A 1991-04-09 1992-03-30 Process and apparatus for manufacturing foamed polyurethane Expired - Fee Related GB2254570B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4111458A DE4111458C1 (en) 1991-04-09 1991-04-09

Publications (3)

Publication Number Publication Date
GB9206880D0 GB9206880D0 (en) 1992-05-13
GB2254570A GB2254570A (en) 1992-10-14
GB2254570B true GB2254570B (en) 1994-08-03

Family

ID=6429145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9206880A Expired - Fee Related GB2254570B (en) 1991-04-09 1992-03-30 Process and apparatus for manufacturing foamed polyurethane

Country Status (5)

Country Link
DE (1) DE4111458C1 (en)
DK (1) DK173953B1 (en)
FR (1) FR2675147A1 (en)
GB (1) GB2254570B (en)
IT (1) IT1254438B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1302527B1 (en) * 1998-12-10 2000-09-05 Main Group Spa DEVICE FOR MOLDING OF PLASTIC MATERIALS FOR CASTING.
ITPD20040120A1 (en) * 2004-05-11 2004-08-11 Main Group Spa CLEANING DEVICE FOR A LOW PRESSURE MIXING CHAMBER, PARTICULARLY FOR POLYURETHANE
WO2021069306A1 (en) 2019-10-08 2021-04-15 Covestro Intellectual Property Gmbh & Co. Kg Device for mixing reactive components
EP4001335A1 (en) 2020-11-18 2022-05-25 Covestro Deutschland AG Method for producing polyurethane foams

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB864917A (en) * 1956-07-31 1961-04-12 British United Shoe Machinery Improvements in or relating to mixing machines
GB1313680A (en) * 1969-12-17 1973-04-18 Semperit Ag Mixing and conveying apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB864917A (en) * 1956-07-31 1961-04-12 British United Shoe Machinery Improvements in or relating to mixing machines
GB1313680A (en) * 1969-12-17 1973-04-18 Semperit Ag Mixing and conveying apparatus

Also Published As

Publication number Publication date
DK173953B1 (en) 2002-03-04
FR2675147B1 (en) 1994-04-22
FR2675147A1 (en) 1992-10-16
GB2254570A (en) 1992-10-14
ITMI920287A0 (en) 1992-02-12
IT1254438B (en) 1995-09-25
GB9206880D0 (en) 1992-05-13
ITMI920287A1 (en) 1993-08-12
DK47692D0 (en) 1992-04-08
DK47692A (en) 1992-10-10
DE4111458C1 (en) 1992-08-13

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100330