GB846557A - Improvements in or relating to the moulding of phenolic and epoxy resins - Google Patents

Improvements in or relating to the moulding of phenolic and epoxy resins

Info

Publication number
GB846557A
GB846557A GB3762256A GB3762256A GB846557A GB 846557 A GB846557 A GB 846557A GB 3762256 A GB3762256 A GB 3762256A GB 3762256 A GB3762256 A GB 3762256A GB 846557 A GB846557 A GB 846557A
Authority
GB
United Kingdom
Prior art keywords
solvent
weight
proportion
cellulose acetate
solution
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
GB3762256A
Inventor
Leslie Nathan Phillips
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB3762256A priority Critical patent/GB846557A/en
Publication of GB846557A publication Critical patent/GB846557A/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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
    • C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/60—Releasing, lubricating or separating agents
    • B29C33/62—Releasing, lubricating or separating agents based on polymers or oligomers
    • B29C33/66—Cellulose; Derivatives thereof
    • 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
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/14—Mixed esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mold Materials And Core Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A parting agent solution for use in moulding phenol-aldehyde and epoxy resins comprises 5-20% by weight of cellulose acetate butyrate, having a butyryl content of 15-30% by weight, and a solvent for the cellulose acetate butyrate. The solvent may comprise a major proportion by weight of a low-boiling solvent, e.g. acetone, a minor proportion of a high-boiling solvent, e.g. diacetone alcohol, and an intermediate proportion of a medium-boiling solvent, e.g. ethyl acetate. The solution may also contain one or more solvents selected from industrial methylated spirits, butyl alcohol, ethyl lactate, and toluene, and may also comprise up to 20% by weight of a metallic stearate, e.g. aluminium stearate. Specification 762,462 is referred to.ALSO:A parting agent solution for use in moulding phenol-aldehyde and epoxy resins comprises 5 to 20% by weight of cellulose acetate butyrate, having a butyryl content of 15 to 30% by weight and a solvent for the cellulose acetate butyrate. The solvent may comprise a major proportion by weight of a low boiling temperature solvent, e.g. acetone, a minor proportion of a high boiling temperature solvent, e.g. diacetone alcohol, and an intermediate proportion of a medium boiling temperature solvent, e.g. ethyl acetate. The solution may also contain one or more solvents selected from industrial methylated spirits, butyl alcohol, ethyl lactate, and toluene, and may also comprise up to 20% by weight of a metallic staerate such as aluminium stearate. The solution may be applied to a mould wall or lining and the solvent allowed to evaporate. Specification 762,462 is referred to.
GB3762256A 1956-12-10 1956-12-10 Improvements in or relating to the moulding of phenolic and epoxy resins Expired GB846557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3762256A GB846557A (en) 1956-12-10 1956-12-10 Improvements in or relating to the moulding of phenolic and epoxy resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3762256A GB846557A (en) 1956-12-10 1956-12-10 Improvements in or relating to the moulding of phenolic and epoxy resins

Publications (1)

Publication Number Publication Date
GB846557A true GB846557A (en) 1960-08-31

Family

ID=10397790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3762256A Expired GB846557A (en) 1956-12-10 1956-12-10 Improvements in or relating to the moulding of phenolic and epoxy resins

Country Status (1)

Country Link
GB (1) GB846557A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100425455C (en) * 2006-09-29 2008-10-15 上海凯兰达实业有限公司 Mold release for galvanic aluminum coating and preparing process thereof
ES2441257A1 (en) * 2012-08-03 2014-02-03 Gave Electro, S.L. Cam switch-switch resistant to high temperatures and production process of the modules that form the structure of the same (Machine-translation by Google Translate, not legally binding)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100425455C (en) * 2006-09-29 2008-10-15 上海凯兰达实业有限公司 Mold release for galvanic aluminum coating and preparing process thereof
ES2441257A1 (en) * 2012-08-03 2014-02-03 Gave Electro, S.L. Cam switch-switch resistant to high temperatures and production process of the modules that form the structure of the same (Machine-translation by Google Translate, not legally binding)

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