GB857886A - Foaming of plastics - Google Patents

Foaming of plastics

Info

Publication number
GB857886A
GB857886A GB33012/58A GB3301258A GB857886A GB 857886 A GB857886 A GB 857886A GB 33012/58 A GB33012/58 A GB 33012/58A GB 3301258 A GB3301258 A GB 3301258A GB 857886 A GB857886 A GB 857886A
Authority
GB
United Kingdom
Prior art keywords
epoxy
specified
resins
cork
bis
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
GB33012/58A
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.)
Unifilm Corp
Original Assignee
Unifilm Corp
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 Unifilm Corp filed Critical Unifilm Corp
Publication of GB857886A publication Critical patent/GB857886A/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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • 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
    • C08J2497/00—Characterised by the use of lignin-containing materials

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)
  • Epoxy Resins (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

An epoxy resin thermoset by a curing agent in the presence of a cork material (defined) and allowing expansion to occur gives an expanded cellular product. Specified cork materials are cork, barks from Douglas fir, elm, maple and fir and balsa wood; titanium dioxide may be present as a pigment and cotton, rayon and glass fibres, asbestos and rock wool as fillers. Epoxy resins specified are the diepoxide of diethylene glycol bisdihydro di p cyclo-pentadienyl ether; the reaction products of polyepoxides such as di epoxy butadiene or bis (2,3 epoxy-2methyl propyl) ether with aromatic polyhydric phenols; and the reaction products of epi chlorhydin with resorcinol, p, p1-(dihydroxy)biphenyl, phenol-formaldehyde resins, with bis phenols in which the phenolic nuclei are joined by -O- or by alkylene radicals and of which a large number are listed and bis-phenol A is preferred, or with aliphatic polyols, e.g. triethylene-, 1, 4-butylene-, hexamethylene, or octaethylene glycols, glycerol and sorbitol. The epoxy resins may be mixed with mono-epoxides such as allyl or phenyl glycidyl ethers, glycidyl benzene, styrene oxide or 2-hydroxyethyl glycidyl ethers. Curing agents specified are BF3, phenolic or urea-formaldehyde resins, polysulphide or polybutene rubbers, polyamides derived from ethylene diamine and dimerized linoleic acid and dimerized linseed oil, benzyl dimethylamine, N, N diethyl ethylene diamine, ethylene or phenylene diamine, diethylene triamine, triethylene tetramine and N-hydroxyethyl-diethylene triamine; particularly preferred are mixtures of polyamides with aliphatic polyamines. Examples are given. The product may be used for the normal wide variety of porous product applications.ALSO:An epoxy-resin thermoset by a curing agent in the presence of a cork material (defined) and allowing expansion to occur gives an expanded cellular product. Specified curing agents are boron trifluoride amino, amides and phenolic resins, whilst cotton and rayon fibres, asbestos, rock wool and glass fibres may be present as fillers.
GB33012/58A 1957-10-21 1958-10-16 Foaming of plastics Expired GB857886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US857886XA 1957-10-21 1957-10-21

Publications (1)

Publication Number Publication Date
GB857886A true GB857886A (en) 1961-01-04

Family

ID=22193940

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33012/58A Expired GB857886A (en) 1957-10-21 1958-10-16 Foaming of plastics

Country Status (1)

Country Link
GB (1) GB857886A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010018142A1 (en) * 2008-08-15 2010-02-18 Basf Se Lightweight wood materials with good mechanical properties
IT202000015994A1 (en) * 2020-07-02 2022-01-02 Sace Components Srl COMPOSITE MATERIAL INCLUDING A CORK MATERIAL AND A POLYMER MATERIAL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010018142A1 (en) * 2008-08-15 2010-02-18 Basf Se Lightweight wood materials with good mechanical properties
IT202000015994A1 (en) * 2020-07-02 2022-01-02 Sace Components Srl COMPOSITE MATERIAL INCLUDING A CORK MATERIAL AND A POLYMER MATERIAL

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