GB762462A - Improvements in or relating to synthetic resinous moulding materials - Google Patents

Improvements in or relating to synthetic resinous moulding materials

Info

Publication number
GB762462A
GB762462A GB28878/52A GB2887852A GB762462A GB 762462 A GB762462 A GB 762462A GB 28878/52 A GB28878/52 A GB 28878/52A GB 2887852 A GB2887852 A GB 2887852A GB 762462 A GB762462 A GB 762462A
Authority
GB
United Kingdom
Prior art keywords
resin
solution
mixture
room temperature
phenol
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
GB28878/52A
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 GB28878/52A priority Critical patent/GB762462A/en
Publication of GB762462A publication Critical patent/GB762462A/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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
    • C08J5/244—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
    • B29D99/0028—Producing blades or the like, e.g. blades for turbines, propellers, or wings hollow blades
    • 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
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0272—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using lost heating elements, i.e. heating means incorporated and remaining in the formed article
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
    • C08J5/245—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using natural fibres
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2061/00—Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
    • B29K2061/04—Phenoplasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
    • B29L2031/082—Blades, e.g. for helicopters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3076—Aircrafts
    • B29L2031/3085—Wings
    • 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

Abstract

A heat-convertible synthetic resin mixture substantially stable at room temperature is made mixing a thermosetting monohydric phenol-aldehyde resin (a) with a polyhydric phenol - aldehyde resin (b) which is itself substantially stable at room temperature, the unreacted aldehyde content of (a) being insufficient for any activation of (b) to cause appreciable curing of the mixture at room temperature. Resin (b) is used in amount e.g. of 30 to 70 per cent by weight of the total mixture. Preferably, resin (a) is made from phenol and formaldehyde in the molar ratio of 1 : 1 to 1 : 1.5 and resin (b) is made from resorcinol and formaldehyde in the molar ratio of 1 : 5 to 1 : 0.8. Mixing of the resins may be effected in solution in a non-reactive volatile solvent. Fibrous or like felt or woven material may be impregnated either with the resin mixture or first with a solution of resin (a) and then with a solution of resin (b), and moulded, e.g. into an aerofoil skin by the vacuum moulding technique (see Group V). The examples illustrate the latter proceedure wherein asbestos fibre felts are impregnated first with an aqueous solution of resin (a) and then with an acetone or methylated spirit solution of resin (b). Other solvents specified are chloroform, carbon tetrachloride, diethyl ether, methanol, ethanol, ethyl acetate, methyl ethyl ketone and methylene dichloride. Specifications 612,203, [Group V], and 658,269 are referred to in the Provisional Specification.
GB28878/52A 1952-11-15 1952-11-15 Improvements in or relating to synthetic resinous moulding materials Expired GB762462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28878/52A GB762462A (en) 1952-11-15 1952-11-15 Improvements in or relating to synthetic resinous moulding materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28878/52A GB762462A (en) 1952-11-15 1952-11-15 Improvements in or relating to synthetic resinous moulding materials

Publications (1)

Publication Number Publication Date
GB762462A true GB762462A (en) 1956-11-28

Family

ID=10282623

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28878/52A Expired GB762462A (en) 1952-11-15 1952-11-15 Improvements in or relating to synthetic resinous moulding materials

Country Status (1)

Country Link
GB (1) GB762462A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345249A (en) * 1963-04-10 1967-10-03 Stephan John Thomas Polyhydroxynaphthalene containing adhesive compositions
DE2738267A1 (en) * 1977-08-25 1979-03-01 Hoechst Ag RESIN BINDERS
EP0022919A2 (en) * 1979-07-13 1981-01-28 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Method for the impregnation of tissues by resin injection
GB2124130A (en) * 1982-07-24 1984-02-15 Rolls Royce Vacuum moulding fibre reinforced resin
US4690692A (en) * 1977-08-25 1987-09-01 Hoechst Aktiengesellschaft Synthetic resin binders and their use for the manufacture of abrasives
US4882118A (en) * 1985-04-01 1989-11-21 Short Brothers Plc Method and apparatus for molding fiber reinforced resin matrix composite material
EP2204247A2 (en) * 2008-12-10 2010-07-07 General Electric Company Moulds With Integrated Heating And Methods Of Making The Same
WO2019229435A1 (en) * 2018-05-30 2019-12-05 Acell Industries Limited Vacuum forming process

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345249A (en) * 1963-04-10 1967-10-03 Stephan John Thomas Polyhydroxynaphthalene containing adhesive compositions
US4251408A (en) 1977-08-25 1981-02-17 Hoechst Aktiengesellschaft Synthetic resin binders and their use for the manufacture of abrasives
DE2738267A1 (en) * 1977-08-25 1979-03-01 Hoechst Ag RESIN BINDERS
US4690692A (en) * 1977-08-25 1987-09-01 Hoechst Aktiengesellschaft Synthetic resin binders and their use for the manufacture of abrasives
EP0022919A3 (en) * 1979-07-13 1981-02-11 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Resin injection method for the impregnation of tissues
EP0022919A2 (en) * 1979-07-13 1981-01-28 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Method for the impregnation of tissues by resin injection
GB2124130A (en) * 1982-07-24 1984-02-15 Rolls Royce Vacuum moulding fibre reinforced resin
US4882118A (en) * 1985-04-01 1989-11-21 Short Brothers Plc Method and apparatus for molding fiber reinforced resin matrix composite material
EP2204247A2 (en) * 2008-12-10 2010-07-07 General Electric Company Moulds With Integrated Heating And Methods Of Making The Same
EP2204247A3 (en) * 2008-12-10 2011-03-02 General Electric Company Moulds With Integrated Heating And Methods Of Making The Same
US8357325B2 (en) 2008-12-10 2013-01-22 General Electric Company Moulds with integrated heating and methods of making the same
WO2019229435A1 (en) * 2018-05-30 2019-12-05 Acell Industries Limited Vacuum forming process
GB2575242B (en) * 2018-05-30 2022-11-23 Acell Ind Ltd Vacuum forming process

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