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GB1302413A - - Google Patents

Info

Publication number
GB1302413A
GB1302413A GB147470A GB147470A GB1302413A GB 1302413 A GB1302413 A GB 1302413A GB 147470 A GB147470 A GB 147470A GB 147470 A GB147470 A GB 147470A GB 1302413 A GB1302413 A GB 1302413A
Authority
GB
United Kingdom
Prior art keywords
globules
powder
polyurethane
plastics
coated granules
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
GB147470A
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
Priority claimed from DE19691901675 external-priority patent/DE1901675C3/en
Application filed filed Critical
Publication of GB1302413A publication Critical patent/GB1302413A/en
Expired legal-status Critical Current

Links

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
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/003—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic followed by coating of the granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1055—Coating or impregnating with inorganic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Fertilizers (AREA)

Abstract

1302413 Coating plastics globules R ERNST 12 Jan 1970 [14 Jan 1969] 1474/70 Headings B2E and B2L [Also in Division C1] Coated globules of plastics material, e.g. polyurethane are made by spraying mixed constituents of the plastics material to form globules and coating the thus formed globules with a powder during the period within which they are attaining their maximum size by reaction of the constituent. The powder may be Portland cement, sand or quartz. Fertilizers may be incorporated in one of the constituents of the plastics globules. The coatings may be fused. In the embodiment, reactants for the formation of polyurethane are fed from tanks 1,2 and reacted in a mixing head 7 and sprayed through a nozzle 10 into a container 11 having a perforated floor 12. The powder 13 is fluidised by passing air; preferably heated to 20-35‹C, upwards through the floor 12 by means of a fan 14. The powder 13 may be replenished from a vibrating screen 21 and the coated granules which float to the surface are collected via outlet 22. The perforated floor 12 may be tilted or a transverse flow of air may be blown across the fluidised bed to assist the removal of the coated granules. A nozzle plate or nozzle battery may be used in place of the perforated floor 12. The process may also be carried out using a cloud of flue dust in place of a fluidised bed. Binding slabs are made of concrete incorporating the coated granules of polyurethane.
GB147470A 1969-01-14 1970-01-12 Expired GB1302413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691901675 DE1901675C3 (en) 1969-01-14 Process for the production of granular or pearl-like aggregate from plastics for the production of lightweight components, in particular from concrete

Publications (1)

Publication Number Publication Date
GB1302413A true GB1302413A (en) 1973-01-10

Family

ID=5722371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB147470A Expired GB1302413A (en) 1969-01-14 1970-01-12

Country Status (2)

Country Link
GB (1) GB1302413A (en)
NL (1) NL7000480A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139996A (en) * 1983-02-14 1984-11-21 Bent Pagh Sperling Fibre reinforced materials and thermoplastic reinforcing fibres therefor
GB2237755A (en) * 1989-11-09 1991-05-15 Cyril Oury Duke Cementitious mixes, constituents and products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308396A (en) * 1988-03-10 1994-05-03 Mazedawn Limited Method of making lightweight granules coated with cementitious material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139996A (en) * 1983-02-14 1984-11-21 Bent Pagh Sperling Fibre reinforced materials and thermoplastic reinforcing fibres therefor
GB2237755A (en) * 1989-11-09 1991-05-15 Cyril Oury Duke Cementitious mixes, constituents and products
GB2237755B (en) * 1989-11-09 1993-11-17 Cyril Oury Duke Cementitious mixes,constituents therefor and products made therefrom

Also Published As

Publication number Publication date
NL7000480A (en) 1970-07-16
DE1901675A1 (en) 1970-08-27

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee