GB743866A - Improvements in or relating to hollow particles - Google Patents

Improvements in or relating to hollow particles

Info

Publication number
GB743866A
GB743866A GB1315053A GB1315053A GB743866A GB 743866 A GB743866 A GB 743866A GB 1315053 A GB1315053 A GB 1315053A GB 1315053 A GB1315053 A GB 1315053A GB 743866 A GB743866 A GB 743866A
Authority
GB
United Kingdom
Prior art keywords
gas
forming
latent
film
hollow particles
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
GB1315053A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1315053A priority Critical patent/GB743866A/en
Publication of GB743866A publication Critical patent/GB743866A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/32Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Gas-filled hollow particles are formed from film-forming material by a process which includes sub-dividing into individual droplets a solution comprising a volatile solvent having dissolved therein film-forming material and a latent gas material, and subjecting the droplets to a drying temperature at which the solvent is volatilized at a rate to form a tough, gas-impervious surface skin coincident with particle formation, and the latent gas material is converted into a gas, whereby gas liberated within said forming particle is trapped by the surface skin within the space thereof, thus forming particles having a continuous hole-free-skin surface. Specified film-forming materials are polyvinyl alcohol, polyvinyl chloride, copolymers of vinyl chloride and vinyl acetate, polyvinyl butyral, polystyrene, polyvinylidene chloride, polymethyl methacrylate, polyethylene, polyamide resins, alkyds, polysiloxane, phenolformaldehyde, urea-formaldehyde, melamine-formaldehyde, cellulose acetate, cellulose acetate-butyrate, acetate-propionate, xanthate, cuprammonium cellulose, methyl and ethyl cellulose, soybean protein, zein protein and alginates. The latent gas material may be a dissolved gas, e.g. ammonia, methyl chloride, dimethyl ether, ethylene oxide, methylamine, methyl bromide, dimethylamine or carbon dioxide or a substance which is decomposed at drying temperatures with formation of a gas, a large number of the usual flowing agents being specified for this purpose. Specified solvents are water, alcohols, ethers, esters, organic acids, hydrocarbons, and chlorinated hydrocarbons. In general, the film-forming material in solution is spray dried. The product may be used as insulating material or as a filler for such articles as linoleum and floor tiles or as aggregate for concrete or plaster. The particles may be adhered together either by softening under pressure or by using a binder to form rigid or non-rigid materials and may then be used as the core of three-ply laminates. They may also be used as compressible lubricants when bonded with polyethylene, oils and greases.ALSO:Hollow particles are formed from sodium aluminate or silicate by a process which includes subdividing into individual droplets a solution comprising a volatile solvent having dissolved therein the aluminate or silicate and a latent gas material and subjecting the drops to a drying temperature at which the solvent is volatilized at a rate to form a tough, gas-impervious surface skin coincident with particle formation, and the latent gas mixture is converted into a gas, whereby gas liberated within said forming particle is trapped by the surface skin thus forming particles having a continuous hole-free skin surface. The latent gas material may be a dissolved gas, e.g. ammonia, methyl chloride, dimethyl ether, ethyleneoxide methyl amine, methyl bromide, dimethyl amine or carbon dioxide or a substance which is decomposed of drying temperatures with formation of a gas, a large number of the usual flowing agents being specified for this purpose. Specified solvents are water, alcohols, ethers, esters, organic acids, hydrocarbons and chlorinated hydrocarbons. In general the aluminate or silicate in solution is sprayed. The product may be used as insulating materialALSO:Cements and plasters incorporate hollow particles formed from film-forming material by subdividing into individual droplets a solution of the film-forming material in a volatile solvent and a latent gas material and subjecting the drops to a drying temperature at which the solvent is volatilized at a rate to form a gas-impervious surface skin and then the latent gas material gasified, this gas being trapped by the surface skin. In examples: (1) one part of Portland cement and from 3 to 9 parts of hollow particles made from phenol-formaldehyde or polyvinyl alcohol resin, with, if desired, a small proportion of sand were mixed and used to make light-weight concrete; (2) one part fibrous gypsum plaster and from 2-4 parts phenol-formaldehyde resin hollow particles were used to produce light-weight plaster.
GB1315053A 1953-05-11 1953-05-11 Improvements in or relating to hollow particles Expired GB743866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1315053A GB743866A (en) 1953-05-11 1953-05-11 Improvements in or relating to hollow particles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1315053A GB743866A (en) 1953-05-11 1953-05-11 Improvements in or relating to hollow particles

Publications (1)

Publication Number Publication Date
GB743866A true GB743866A (en) 1956-01-25

Family

ID=10017788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1315053A Expired GB743866A (en) 1953-05-11 1953-05-11 Improvements in or relating to hollow particles

Country Status (1)

Country Link
GB (1) GB743866A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432579A (en) * 1966-07-11 1969-03-11 Phillips Petroleum Co Process for producing low-density pellets from slurries containing film-forming materials
WO2002031032A1 (en) * 2000-10-10 2002-04-18 Agrolinz Melamin Gmbh Syntactic aminoplast foams
WO2002077050A1 (en) * 2001-03-08 2002-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Discrete microcavity particles having a flexible wall structure
GB2398296A (en) * 2003-01-23 2004-08-18 Bj Services Co Cement containing a polymer encapsulated expandable material
US7543642B2 (en) 2003-01-24 2009-06-09 Halliburton Energy Services, Inc. Cement compositions containing flexible, compressible beads and methods of cementing in subterranean formations
US7651563B2 (en) 2002-08-23 2010-01-26 James Hardie Technology Limited Synthetic microspheres and methods of making same
US7658794B2 (en) 2000-03-14 2010-02-09 James Hardie Technology Limited Fiber cement building materials with low density additives
US7744689B2 (en) 2005-02-24 2010-06-29 James Hardie Technology Limited Alkali resistant glass compositions
US7897534B2 (en) 2003-10-29 2011-03-01 James Hardie Technology Limited Manufacture and use of engineered carbide and nitride composites
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials
US8609244B2 (en) 2005-12-08 2013-12-17 James Hardie Technology Limited Engineered low-density heterogeneous microparticles and methods and formulations for producing the microparticles
US20140175322A1 (en) * 2012-12-20 2014-06-26 Georgia-Pacific Gypsum Llc Building materials, compositions, and methods
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
US9499975B2 (en) 2012-12-20 2016-11-22 Georgia-Pacific Gypsum Llc Building materials, compositions, and methods
CN106140039A (en) * 2015-05-12 2016-11-23 中国石油化工股份有限公司 A kind of melamine resin hollow microsphere and its preparation method and application

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432579A (en) * 1966-07-11 1969-03-11 Phillips Petroleum Co Process for producing low-density pellets from slurries containing film-forming materials
US7658794B2 (en) 2000-03-14 2010-02-09 James Hardie Technology Limited Fiber cement building materials with low density additives
US8603239B2 (en) 2000-03-14 2013-12-10 James Hardie Technology Limited Fiber cement building materials with low density additives
US8182606B2 (en) 2000-03-14 2012-05-22 James Hardie Technology Limited Fiber cement building materials with low density additives
US7727329B2 (en) 2000-03-14 2010-06-01 James Hardie Technology Limited Fiber cement building materials with low density additives
WO2002031032A1 (en) * 2000-10-10 2002-04-18 Agrolinz Melamin Gmbh Syntactic aminoplast foams
WO2002077050A1 (en) * 2001-03-08 2002-10-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Discrete microcavity particles having a flexible wall structure
US7878026B2 (en) 2002-08-23 2011-02-01 James Hardie Technology Limited Synthetic microspheres and methods of making same
US7666505B2 (en) 2002-08-23 2010-02-23 James Hardie Technology Limited Synthetic microspheres comprising aluminosilicate and methods of making same
US7651563B2 (en) 2002-08-23 2010-01-26 James Hardie Technology Limited Synthetic microspheres and methods of making same
US7993570B2 (en) 2002-10-07 2011-08-09 James Hardie Technology Limited Durable medium-density fibre cement composite
GB2398296B (en) * 2003-01-23 2007-04-25 Bj Services Co Polymer shell encapsulated gas as a cement expansion additive
GB2398296A (en) * 2003-01-23 2004-08-18 Bj Services Co Cement containing a polymer encapsulated expandable material
US7494544B2 (en) 2003-01-23 2009-02-24 Bj Services Company Polymer shell encapsulated gas as a cement expansion additive
US7543642B2 (en) 2003-01-24 2009-06-09 Halliburton Energy Services, Inc. Cement compositions containing flexible, compressible beads and methods of cementing in subterranean formations
US7897534B2 (en) 2003-10-29 2011-03-01 James Hardie Technology Limited Manufacture and use of engineered carbide and nitride composites
US7998571B2 (en) 2004-07-09 2011-08-16 James Hardie Technology Limited Composite cement article incorporating a powder coating and methods of making same
US7744689B2 (en) 2005-02-24 2010-06-29 James Hardie Technology Limited Alkali resistant glass compositions
US8609244B2 (en) 2005-12-08 2013-12-17 James Hardie Technology Limited Engineered low-density heterogeneous microparticles and methods and formulations for producing the microparticles
US8993462B2 (en) 2006-04-12 2015-03-31 James Hardie Technology Limited Surface sealed reinforced building element
US8209927B2 (en) 2007-12-20 2012-07-03 James Hardie Technology Limited Structural fiber cement building materials
US20140175322A1 (en) * 2012-12-20 2014-06-26 Georgia-Pacific Gypsum Llc Building materials, compositions, and methods
US9157242B2 (en) * 2012-12-20 2015-10-13 Georgia-Pacific Gypsum Llc Building materials, compositions, and methods
US9499975B2 (en) 2012-12-20 2016-11-22 Georgia-Pacific Gypsum Llc Building materials, compositions, and methods
CN106140039A (en) * 2015-05-12 2016-11-23 中国石油化工股份有限公司 A kind of melamine resin hollow microsphere and its preparation method and application
CN106140039B (en) * 2015-05-12 2019-07-26 中国石油化工股份有限公司 A kind of melamine resin hollow microsphere and its preparation method and application

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