GB1374745A - Process for forming sealing members on container closures - Google Patents

Process for forming sealing members on container closures

Info

Publication number
GB1374745A
GB1374745A GB2938873A GB2938873A GB1374745A GB 1374745 A GB1374745 A GB 1374745A GB 2938873 A GB2938873 A GB 2938873A GB 2938873 A GB2938873 A GB 2938873A GB 1374745 A GB1374745 A GB 1374745A
Authority
GB
United Kingdom
Prior art keywords
sealing members
closures
june
composition
drums
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
GB2938873A
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.)
WR Grace and Co Conn
WR Grace and Co
Original Assignee
WR Grace and Co Conn
WR Grace and Co
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 WR Grace and Co Conn, WR Grace and Co filed Critical WR Grace and Co Conn
Publication of GB1374745A publication Critical patent/GB1374745A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
    • C09K3/1021—Polyurethanes or derivatives thereof
    • 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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • 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
    • C08G2190/00—Compositions for sealing or packing joints
    • 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
    • C08G2390/00—Containers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Sealing Material Composition (AREA)

Abstract

1374745 Container ends W R GRACE & CO 20 June 1973 [21 June 1972] 29388/73 Addition to 1339356 Heading B8D [Also in Divisions C3 and F1] Sealing members or container closures, e.g. aerosol mounting cups, metal covers for pails or drums, can ends or metal bottoms of fibre drums are prepared by (a) applying to the closure, an annular layer of a composition comprising (i) a liquid isocyanate group containing polyurethane prepolymer and (ii) a polyamine carbamate dispersed in the prepolymer (see Division C3) and (b) heating the closures to or above the decomposition temperature of the carbamate to cause the composition to foam and gel. Conventional high speed gasket layer equipment may be used to carry out the process, the resulting article being sufficiently cured after a few minutes heating to be ready for transport.
GB2938873A 1972-06-21 1973-06-20 Process for forming sealing members on container closures Expired GB1374745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26483872A 1972-06-21 1972-06-21

Publications (1)

Publication Number Publication Date
GB1374745A true GB1374745A (en) 1974-11-20

Family

ID=23007832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2938873A Expired GB1374745A (en) 1972-06-21 1973-06-20 Process for forming sealing members on container closures

Country Status (1)

Country Link
GB (1) GB1374745A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512736A1 (en) * 1981-09-14 1983-03-18 Dana Corp Forming compressible resilient foamed sealant coating on gasket - by electrostatically applying dry mixt. of thermosetting resin and blowing agent, and heating
DE3905545A1 (en) * 1989-02-23 1990-08-30 Basf Lacke & Farben METHOD FOR PRODUCING SEALS FOR PACKAGING CONTAINERS
DE3940159C1 (en) * 1989-06-22 1991-01-10 Fa. Carl Freudenberg, 6940 Weinheim, De
DE4023702A1 (en) * 1990-07-26 1992-01-30 Sonderhoff Ernst Fa HOT-HOLDING UNICOMPONENT POLYURETHANE MASS, ESPECIALLY FOR USE AS A MOLDING AND SPRAYING SEALANT FOR THE MANUFACTURE OF BLOOM-HARDENOUS SEALS IN THE EMBALLAIN INDUSTRY, FOR GUN SEALS AND DGL.
EP0625559A1 (en) * 1993-05-21 1994-11-23 Bridgestone Corporation Foamable materials, their preparation and use
US5510053A (en) * 1994-12-29 1996-04-23 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
US5532403A (en) * 1994-12-29 1996-07-02 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512736A1 (en) * 1981-09-14 1983-03-18 Dana Corp Forming compressible resilient foamed sealant coating on gasket - by electrostatically applying dry mixt. of thermosetting resin and blowing agent, and heating
DE3905545A1 (en) * 1989-02-23 1990-08-30 Basf Lacke & Farben METHOD FOR PRODUCING SEALS FOR PACKAGING CONTAINERS
DE3940159C1 (en) * 1989-06-22 1991-01-10 Fa. Carl Freudenberg, 6940 Weinheim, De
DE4023702B4 (en) * 1990-07-26 2007-01-11 Sonderhoff Gmbh Use of a thermosetting one-component polyurethane composition as pourable and sprayable sealant for the production of inflatable rubber-like seals
DE4023702A1 (en) * 1990-07-26 1992-01-30 Sonderhoff Ernst Fa HOT-HOLDING UNICOMPONENT POLYURETHANE MASS, ESPECIALLY FOR USE AS A MOLDING AND SPRAYING SEALANT FOR THE MANUFACTURE OF BLOOM-HARDENOUS SEALS IN THE EMBALLAIN INDUSTRY, FOR GUN SEALS AND DGL.
EP0625559A1 (en) * 1993-05-21 1994-11-23 Bridgestone Corporation Foamable materials, their preparation and use
US5496868A (en) * 1993-05-21 1996-03-05 Bridgestone Corporation Sealing material and method
US5510053A (en) * 1994-12-29 1996-04-23 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
US5532403A (en) * 1994-12-29 1996-07-02 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
US5532285A (en) * 1994-12-29 1996-07-02 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
US5539010A (en) * 1994-12-29 1996-07-23 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
US5539009A (en) * 1994-12-29 1996-07-23 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
US5672635A (en) * 1994-12-29 1997-09-30 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
US5530034A (en) * 1994-12-29 1996-06-25 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SPA Amended specification published
PLNP Patent lapsed through nonpayment of renewal fees