GB967223A - Polymerisation products for use as protection against the action of heat and radiation - Google Patents

Polymerisation products for use as protection against the action of heat and radiation

Info

Publication number
GB967223A
GB967223A GB3990862A GB3990862A GB967223A GB 967223 A GB967223 A GB 967223A GB 3990862 A GB3990862 A GB 3990862A GB 3990862 A GB3990862 A GB 3990862A GB 967223 A GB967223 A GB 967223A
Authority
GB
United Kingdom
Prior art keywords
water
emulsion
weight
radiation
protection against
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
GB3990862A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB967223A publication Critical patent/GB967223A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/52—Protection, safety or emergency devices; Survival aids
    • B64G1/58—Thermal protection, e.g. heat shields
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/12—Polymerisation in non-solvents
    • C08F2/16—Aqueous medium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/32—Polymerisation in water-in-oil emulsions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Critical Care (AREA)
  • Emergency Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A polymeric product for use as protection against the action of heat and radiation is produced by polymerizing at least one organic polymerizable monomer containing at least one terminal CH2=C< group in the molecule and having a solubility in water not exceeding 10% by weight, in inverted emulsion (i.e. a water-in-oil emulsion) employing an emulsifier which is capable of forming inverted emulsions. The resulting product may contain up to 5,000 volume per cent. of water. Preferred monomers are those containing only one terminal CH2=C< group. A long list of suitable monomers is provided. It is preferred to use homopolymers or copolymers of styrene. The polymerizable unsaturated compounds are the oil phase or constitute 5-100% by weight of the oil phase. Examples of suitable emulsifiers are fatty acid salts having low hydrophilic power, non-ionic emulsifiers and high molecular weight substances, all present in amounts of from 0.5-10% by weight. The polymerization is carried out with the usual free radical catalyst and contactors, at a temperature of -10 to +100 DEG C. Various organic or inorganic fillers may be added to the emulsion which may be cast in a mould or used as a surface coating or in the form of granules. Specifications 928,621 and 962,702 are referred to.ALSO:A polymeric product for use as protection against the action of heat and radiation is produced by polymerizing at least one organic polymerizable monomer containing at least one terminal CH2 = C< group in the molecule and having a solubility in water not exceeding 10% by weight, in inverted emulsion (i.e. a water-in-oil emulsion) employing an emulsifier which is capable of forming inverted emulsions. The resulting product may contain up to 5000 volume per cent of water. A long list of suitable monomers is provided, the preferred monomer being styrene. The emulsion may be cast in moulds, used as a surface coating. A granulated form of the product is used in fighting fires. The resulting material has a low thermal conductivity and is completely non-inflammable. Specifications 928,621 and 962,702 are referred to.
GB3990862A 1961-10-20 1962-10-22 Polymerisation products for use as protection against the action of heat and radiation Expired GB967223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0035176 1961-10-20

Publications (1)

Publication Number Publication Date
GB967223A true GB967223A (en) 1964-08-19

Family

ID=7095891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3990862A Expired GB967223A (en) 1961-10-20 1962-10-22 Polymerisation products for use as protection against the action of heat and radiation

Country Status (3)

Country Link
BE (1) BE623754A (en)
DE (1) DE1494024B2 (en)
GB (1) GB967223A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2363475C3 (en) * 1973-12-20 1986-06-19 Steag Kernenergie Gmbh, 4300 Essen Process for processing solid waste containing radioactive or toxic substances for safe handling, transport and disposal
DE2603116C2 (en) * 1976-01-28 1983-01-27 Nukem Gmbh, 6450 Hanau Process for the solidification of radioactive borate-containing aqueous solutions and suspensions
DE3147042A1 (en) * 1981-11-27 1983-06-09 Temple, Bernhard de, Prof. Dipl.-Ing., 6501 Heidesheim Bushing
FR2714386B1 (en) * 1993-12-23 1996-03-08 Hutchinson Elastomer film, its preparation process and its applications.

Also Published As

Publication number Publication date
DE1494024B2 (en) 1970-11-19
DE1494024A1 (en) 1969-06-19
BE623754A (en)

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