GB522648A - Improvements in and relating to moulding thermosetting plastic material, particularly for rubber printing plates - Google Patents

Improvements in and relating to moulding thermosetting plastic material, particularly for rubber printing plates

Info

Publication number
GB522648A
GB522648A GB36748/38A GB3674838A GB522648A GB 522648 A GB522648 A GB 522648A GB 36748/38 A GB36748/38 A GB 36748/38A GB 3674838 A GB3674838 A GB 3674838A GB 522648 A GB522648 A GB 522648A
Authority
GB
United Kingdom
Prior art keywords
sheet
threads
plastic material
fixative
textile fabric
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
GB36748/38A
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.)
Bakelite Ltd
Original Assignee
Bakelite 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 Bakelite Ltd filed Critical Bakelite Ltd
Publication of GB522648A publication Critical patent/GB522648A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C3/00—Reproduction or duplicating of printing formes
    • B41C3/04—Reproduction or duplicating of printing formes to produce rubber printing blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • 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
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/467—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements during mould closing
    • 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
    • B29K2021/00—Use of unspecified rubbers as 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
    • 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
    • B29K2061/20—Aminoplasts
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/001—Flat articles, e.g. films or sheets having irregular or rough surfaces
    • 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
    • B29L2031/767—Printing equipment or accessories therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612—Composite web or sheet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Reinforced Plastic Materials (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

522,648. Compound sheet materials. BAKELITE, Ltd. Dec. 16, 1938, No. 36748. Convention date, June 17. [Class 140] [Also in Groups V and XVI] In moulding articles, such as printing plates, thermo-setting plastic material, such as natural or synthetic rubber, vinyl derivatives or phenol or urea aldehyde resins, is forced through the whole or portions of a foraminous sheet which is composed of textile fabric impregnated with a fixative serving to lock the threads where they ,cross but not filling the spaces between the threads, such sheet being placed over the face of a matrix so that plastic material is extruded into the depression or depressions of the matrix and sufficient material remains as a bed for the sheet which thereafter' constitutes a part of the moulded article. A composite sheet for use in the moulding operation comprises a layer of uncured rubber composition superimposed on and attached to a foraminous sheet of textile fabric which has been previously impregnated with a heat-hardenable resin and cured so that the threads of the fabric are locked where they cross but the spaces between them are not filled up. The textile fabric may have been pre-shrunk and the threads locked together with a varnish fixative such as one containing a heat-hardenable phenol' resin. The fixative may however be starch, silicate of soda or glue. The sheet may be a cotton fabric having a mesh of 80 threads per inch or less. A composite sheet is formed by calendering a layer of rubber composition on to the foraminous sheet.
GB36748/38A 1938-06-17 1938-12-16 Improvements in and relating to moulding thermosetting plastic material, particularly for rubber printing plates Expired GB522648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US214319A US2272254A (en) 1938-06-17 1938-06-17 Flexible printing plate

Publications (1)

Publication Number Publication Date
GB522648A true GB522648A (en) 1940-06-24

Family

ID=22798625

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36748/38A Expired GB522648A (en) 1938-06-17 1938-12-16 Improvements in and relating to moulding thermosetting plastic material, particularly for rubber printing plates

Country Status (2)

Country Link
US (1) US2272254A (en)
GB (1) GB522648A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031959A (en) * 1950-05-05 1962-05-01 Tenak Products Company Printing plate with paper layer
US2971459A (en) * 1956-02-02 1961-02-14 Sunkist Growers Inc Resilient printing die
US3473470A (en) * 1958-10-31 1969-10-21 Printing Plate Supply Co Method of producing printing plates
US3062139A (en) * 1959-06-19 1962-11-06 Robert R Myers Method of and means for producing printing plates
US3091176A (en) * 1960-08-18 1963-05-28 James F Wall Plastic printing plates
US3221654A (en) * 1960-09-22 1965-12-07 Dynamics Corp America Plastic printing plate and method for manufacture
US3380880A (en) * 1965-07-23 1968-04-30 Union Carbide Corp Thermoplastic matrix
IT1319588B1 (en) * 2000-12-19 2003-10-20 Vibram Spa PROCEDURE FOR THE REALIZATION OF A FABRIC-ELASTOMERONONCONO COUPLED OBTAINED

Also Published As

Publication number Publication date
US2272254A (en) 1942-02-10

Similar Documents

Publication Publication Date Title
GB522648A (en) Improvements in and relating to moulding thermosetting plastic material, particularly for rubber printing plates
US2741297A (en) Printing plate material
US3057018A (en) One-step molding of a decorated thermosetting resin article
GB953835A (en) Nonwoven fabric and method of manufacturing the same
US2112544A (en) Laminated article
US2605204A (en) Covering material and method of producing the same
GB556813A (en) Improvements in or relating to laminated articles and their methods of manufacture
GB911602A (en) Improvements in or relating to the method of manufacture of abrading elements and tosuch elements
GB1190261A (en) Improvements in or relating to Laminated Plastics Constructions
US2473024A (en) Method of making fabricated articles
GB739801A (en) Improvements relating to the production of decorated articles from thermosetting synthetic resins
US2020214A (en) Article made from synthetic resins, rubber, and other like moldable substances
GB1305556A (en)
GB1372846A (en) Syntactic foam elements
GB790874A (en) Improvements relating to vibration aí¡í¡
GB246886A (en) The manufacture of articles and materials from paper, fabric or the like which has been previously decorated
FR2169009A1 (en) Plastic serving tray - of laminate with at least one non slip surface
GB1225550A (en)
GB459544A (en) Improvements in or relating to the manufacture of sheet material
GB553561A (en) Production of plastics having a paper base
AT156821B (en) Process for the production of clichés, printer's type, printing plates and embossing plates from hardened fibers, paper, etc.
GB524568A (en) Improvements in or relating to printing blocks, moulds, and like articles having an impressed surface
GB1214988A (en) Method of moulding
GB1370786A (en) Fabrics
GB1175383A (en) Improvements in or relating to Elastic Printing Plates.