GB1333088A - Cellular polyurethanes - Google Patents

Cellular polyurethanes

Info

Publication number
GB1333088A
GB1333088A GB1296270A GB1333088DA GB1333088A GB 1333088 A GB1333088 A GB 1333088A GB 1296270 A GB1296270 A GB 1296270A GB 1333088D A GB1333088D A GB 1333088DA GB 1333088 A GB1333088 A GB 1333088A
Authority
GB
United Kingdom
Prior art keywords
prepolymer
surfactant
inert gas
reaction product
polyurethane foam
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
GB1296270A
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.)
Dunlop Holdings Ltd
Original Assignee
Dunlop Holdings Ltd
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 Dunlop Holdings Ltd filed Critical Dunlop Holdings Ltd
Publication of GB1333088A publication Critical patent/GB1333088A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
    • 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
    • B29B7/32—Mixing; Kneading continuous, with mechanical mixing or kneading devices with non-movable mixing or kneading devices
    • B29B7/325—Static mixers
    • 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
    • B29B7/402—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft using a rotor-stator system with intermeshing elements, e.g. teeth
    • 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
    • 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
    • B29B7/74—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
    • B29B7/7419—Mixing devices specially adapted for foamable substances with supply of gas with static or injector mixer elements
    • 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
    • B29B7/7419—Mixing devices specially adapted for foamable substances with supply of gas with static or injector mixer elements
    • B29B7/7423—Mixing devices specially adapted for foamable substances with supply of gas with static or injector mixer elements preceded or followed by rotatable stirring device
    • 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

Abstract

1333088 Polyurethane foam DUNLOP HOLDINGS Ltd 19 April 1971 [18 March 1970] 12962/70 Heading C3R [Also in Division B1] Polyurethane foam is prepared by mixing an inert gas with a liquid polyurethane prepolymer composition containing a surfactant, whipping the prepolymer composition to form a stable froth and subsequently mixing into the froth a curing agent for the prepolymer by static mixing means. The inert gas may be air, carbon dioxide or nitrogen and is suitably injected into a stream of the prepolymer containing the surfactant. Polyfunctional amines are the preferred curing agents. The prepolymer may contain a reaction product of a carboxylic acid and an organic isocyanate, which reaction product may be produced in situ in the prepolymer forming reaction mixture. Silicones are the preferred surfactants. The static mixing means suitably comprises an open-ended container having a series of projections on its inner surface (see Divisions B1-B2).
GB1296270A 1971-04-19 1971-04-19 Cellular polyurethanes Expired GB1333088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1296270 1971-04-19

Publications (1)

Publication Number Publication Date
GB1333088A true GB1333088A (en) 1973-10-10

Family

ID=10014306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1296270A Expired GB1333088A (en) 1971-04-19 1971-04-19 Cellular polyurethanes

Country Status (2)

Country Link
AU (1) AU2644771A (en)
GB (1) GB1333088A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105595A (en) * 1974-09-17 1978-08-08 Bayer Aktiengesellschaft Process for the production of highly elastic polyurethane foams
US4158032A (en) * 1977-05-03 1979-06-12 Reeves Brothers, Inc. Centrifugal process for production of polyurethane foam
US4221555A (en) 1978-11-27 1980-09-09 Reeves Brothers, Inc. Centrifuge deposition device and continuous slab mold for processing polymeric-foam-generating liquid reactants
US4275172A (en) 1980-01-28 1981-06-23 Union Carbide Corporation Frothable polyurethane composition and a cellular foam produced therefrom suitable for use in joints between wallboards
EP0069163A1 (en) * 1981-07-07 1983-01-12 Union Carbide Corporation A frothable polyurethane composition and a cellular foam produced therefrom
GB2116574A (en) * 1982-03-19 1983-09-28 Ici Plc Method of manufacturing polyurethane foams
FR2548197A1 (en) * 1983-06-15 1985-01-04 Desgranges Annie PROCESS FOR PRODUCING LIQUID FOAMS OF THERMOSETTING RESINS, ESPECIALLY POLYURETHANE, AND FOAMS OBTAINED
EP0276912A1 (en) * 1987-01-09 1988-08-03 Freeman Chemicals Limited Polymers Division Foams for fire-fighting, blanketing or vapour suppression
DK155674B (en) * 1979-09-14 1989-05-01 Baxenden Scandinavia PROCEDURE FOR MANUFACTURING A MONOCOMPONENT POLYURETHAN
EP0398162A2 (en) * 1989-05-10 1990-11-22 Stog, Arnulf Process for producing polyurethane foams
GB2244714A (en) * 1990-05-31 1991-12-11 Sanyo Chemical Ind Ltd Foamed polyurethane-forming composition, foamed polyurethane, and process making the same
EP0485350A1 (en) * 1990-11-09 1992-05-13 SAECO S.r.l. Device for homogenising, mixing and emulsifying liquid products
WO1998045359A1 (en) * 1997-04-04 1998-10-15 The Dow Chemical Company Low resiliency polyurethane foams having some gel characteristics (gelfoams)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105595A (en) * 1974-09-17 1978-08-08 Bayer Aktiengesellschaft Process for the production of highly elastic polyurethane foams
US4158032A (en) * 1977-05-03 1979-06-12 Reeves Brothers, Inc. Centrifugal process for production of polyurethane foam
US4221555A (en) 1978-11-27 1980-09-09 Reeves Brothers, Inc. Centrifuge deposition device and continuous slab mold for processing polymeric-foam-generating liquid reactants
DK155674B (en) * 1979-09-14 1989-05-01 Baxenden Scandinavia PROCEDURE FOR MANUFACTURING A MONOCOMPONENT POLYURETHAN
US4275172A (en) 1980-01-28 1981-06-23 Union Carbide Corporation Frothable polyurethane composition and a cellular foam produced therefrom suitable for use in joints between wallboards
EP0069163A1 (en) * 1981-07-07 1983-01-12 Union Carbide Corporation A frothable polyurethane composition and a cellular foam produced therefrom
GB2116574A (en) * 1982-03-19 1983-09-28 Ici Plc Method of manufacturing polyurethane foams
FR2548197A1 (en) * 1983-06-15 1985-01-04 Desgranges Annie PROCESS FOR PRODUCING LIQUID FOAMS OF THERMOSETTING RESINS, ESPECIALLY POLYURETHANE, AND FOAMS OBTAINED
EP0136191A1 (en) * 1983-06-15 1985-04-03 née Desgranges Annie Rey Process for preparing liquid thermohardening resin foams, preferably polyurethanes, and foams so obtained
EP0276912A1 (en) * 1987-01-09 1988-08-03 Freeman Chemicals Limited Polymers Division Foams for fire-fighting, blanketing or vapour suppression
EP0398162A2 (en) * 1989-05-10 1990-11-22 Stog, Arnulf Process for producing polyurethane foams
EP0398162A3 (en) * 1989-05-10 1991-05-29 Stog, Arnulf Process for producing polyurethane foams
GB2244714A (en) * 1990-05-31 1991-12-11 Sanyo Chemical Ind Ltd Foamed polyurethane-forming composition, foamed polyurethane, and process making the same
GB2244714B (en) * 1990-05-31 1993-10-06 Sanyo Chemical Ind Ltd Foamed polyurethane-forming composition,foamed polyurethane and process for making the same
US5401785A (en) * 1990-05-31 1995-03-28 Sanyo Chemical Industries, Ltd. Foamed polyurethane-forming composition, foamed polyurethane and process making the same
EP0485350A1 (en) * 1990-11-09 1992-05-13 SAECO S.r.l. Device for homogenising, mixing and emulsifying liquid products
WO1998045359A1 (en) * 1997-04-04 1998-10-15 The Dow Chemical Company Low resiliency polyurethane foams having some gel characteristics (gelfoams)

Also Published As

Publication number Publication date
AU2644771A (en) 1972-09-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee