ES365375A1 - Flexible moulds - Google Patents

Flexible moulds

Info

Publication number
ES365375A1
ES365375A1 ES365375A ES365375A ES365375A1 ES 365375 A1 ES365375 A1 ES 365375A1 ES 365375 A ES365375 A ES 365375A ES 365375 A ES365375 A ES 365375A ES 365375 A1 ES365375 A1 ES 365375A1
Authority
ES
Spain
Prior art keywords
master pattern
curing agent
composition
smooth
embossed
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
ES365375A
Other languages
Spanish (es)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES365375A1 publication Critical patent/ES365375A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • 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
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
    • B29C33/3892—Preparation of the model, e.g. by assembling parts
    • 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
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • B29C33/405—Elastomers, e.g. rubber
    • 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
    • B29K2883/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as mould material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Moulding By Coating Moulds (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

Silicone flexible moulds are prepared by forming a layer of an organopolysiloxane fluid composition on the surface of a master pattern, curing the composition to form an elastomer by means of a curing agent provided by the surface of the master pattern and removing the cured elastomer from the master pattern. A curing agent may be additionally incorporated into the organopolysiloxane composition itself, preferably substantially less than incorporated in the master pattern. The master pattern may be smooth or embossed. The master pattern may be made (i) by coating a substrate e.g. a sheet of paper or fabric with a thermoplastic composition e.g. of P.V.C. containing the curing agent and fusing, or (ii) by applying a solution of the curing agent on a smooth or embossed sheet of paper and evaporating the liquid or (iii) by coating the surface of a premade, smooth or embossed master pattern with a composition including the curing agent and e.g. one or more film-forming polymers e.g. polyvinyl chloride or polymethyl methacrylate. The coat ing composition may advantageously include a dulling agent e.g. finely-divided silica. In the examples, a flexible mould is made for use as a casting band in the manufacture of plastics sheet material. The mould is also preferably provided with a supporting substrate of non- woven, woven, knitted or felted material, metal sheet or gauze or glass fibre or gauze.
ES365375A 1968-03-28 1969-03-28 Flexible moulds Expired ES365375A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1496568A GB1247867A (en) 1968-03-28 1968-03-28 Flexible moulds

Publications (1)

Publication Number Publication Date
ES365375A1 true ES365375A1 (en) 1971-01-01

Family

ID=10050694

Family Applications (1)

Application Number Title Priority Date Filing Date
ES365375A Expired ES365375A1 (en) 1968-03-28 1969-03-28 Flexible moulds

Country Status (7)

Country Link
BE (1) BE730713A (en)
CH (1) CH503775A (en)
DE (1) DE1915774A1 (en)
ES (1) ES365375A1 (en)
FR (1) FR2004981A1 (en)
GB (1) GB1247867A (en)
NL (1) NL6904690A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708324A (en) * 1970-06-01 1973-01-02 Dow Corning Method of growing silicone elastomer
US4847026A (en) * 1987-12-03 1989-07-11 Futura Coatings, Inc. Method of molding an artifcial urethane rock
IT1310821B1 (en) * 1999-09-08 2002-02-22 Sergio Tosi METHOD FOR MAKING MATRICES USABLE TO CARRY OUT THE DECORATION OF CERAMIC TILES.

Also Published As

Publication number Publication date
DE1915774A1 (en) 1969-10-09
GB1247867A (en) 1971-09-29
NL6904690A (en) 1969-09-30
BE730713A (en) 1969-09-29
FR2004981A1 (en) 1969-12-05
CH503775A (en) 1971-02-28

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