GB269037A - An improved method of hardening phenol aldehyde condensation products under heat andpressure - Google Patents

An improved method of hardening phenol aldehyde condensation products under heat andpressure

Info

Publication number
GB269037A
GB269037A GB1985226A GB1985226A GB269037A GB 269037 A GB269037 A GB 269037A GB 1985226 A GB1985226 A GB 1985226A GB 1985226 A GB1985226 A GB 1985226A GB 269037 A GB269037 A GB 269037A
Authority
GB
United Kingdom
Prior art keywords
flask
phenol aldehyde
condensation products
boiling liquid
aldehyde condensation
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
GB1985226A
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.)
Godfrey Macdona Hick & Naomi G
Original Assignee
Godfrey Macdona Hick & Naomi G
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 Godfrey Macdona Hick & Naomi G filed Critical Godfrey Macdona Hick & Naomi G
Priority to GB1985226A priority Critical patent/GB269037A/en
Publication of GB269037A publication Critical patent/GB269037A/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
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/247—Heating methods
    • 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
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dental Prosthetics (AREA)

Abstract

269,037. Hick, G. M., and Hick, N. G. Aug. 12, 1926. No Patent granted (Sealing fee not paid). Moulding resins; dental flasks.-Phenol aldehyde condensation products are hardened by enclosing the material within a pressure tight container with a volatile liquid and immersing the container in a boiling liquid. As shown in Fig. 1, a vulcanite denture 2 faced with phenol aldehyde product is supported in plaster 3 in a flask 1 adapted to receive a small quantity of alcohol 4 and to be sealed by a cover 5 clamped on to a rubber joint 7 by wing nuts 6. After charging and sealing the flask it is immersed in boiling liquid 8. In a modification the flask is furnished with covers at each end. Fig. 3 shows a flask for moulding a complete denture of phenol aldehyde product, the flask 1 being furnished with ridges 9 to align the mould parts 3<a>, 3<b> and also provided with notches to receive a bar 10 fitted with a clamping screw 11 adapted to bear against a plate 12. In a further modification, a spring is employed in place of the screw. Gas under pressure may be employed in place of the volatile liquid. The boiling liquid may comprise a saturated solution of common salt. The temperature may be varied during hardening, e.g. by concentrating or by diluting a solution. Specification 249,223 is referred to.
GB1985226A 1926-08-12 1926-08-12 An improved method of hardening phenol aldehyde condensation products under heat andpressure Expired GB269037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1985226A GB269037A (en) 1926-08-12 1926-08-12 An improved method of hardening phenol aldehyde condensation products under heat andpressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1985226A GB269037A (en) 1926-08-12 1926-08-12 An improved method of hardening phenol aldehyde condensation products under heat andpressure

Publications (1)

Publication Number Publication Date
GB269037A true GB269037A (en) 1927-04-14

Family

ID=10136280

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1985226A Expired GB269037A (en) 1926-08-12 1926-08-12 An improved method of hardening phenol aldehyde condensation products under heat andpressure

Country Status (1)

Country Link
GB (1) GB269037A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355526A (en) * 1965-08-10 1967-11-28 Coe Lab Inc Method of molding urethanes
US4971735A (en) * 1988-07-29 1990-11-20 Noboru Uebayashi Fabricating method of resin base denture
WO2018215234A1 (en) * 2017-05-24 2018-11-29 Koninklijke Philips N.V. Liquid-heated mold and method of using same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355526A (en) * 1965-08-10 1967-11-28 Coe Lab Inc Method of molding urethanes
US4971735A (en) * 1988-07-29 1990-11-20 Noboru Uebayashi Fabricating method of resin base denture
WO2018215234A1 (en) * 2017-05-24 2018-11-29 Koninklijke Philips N.V. Liquid-heated mold and method of using same

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