US2558632A - Process for forming bodies of artificial resin and fibrous material - Google Patents

Process for forming bodies of artificial resin and fibrous material Download PDF

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Publication number
US2558632A
US2558632A US755225A US75522547A US2558632A US 2558632 A US2558632 A US 2558632A US 755225 A US755225 A US 755225A US 75522547 A US75522547 A US 75522547A US 2558632 A US2558632 A US 2558632A
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US
United States
Prior art keywords
fibrous material
artificial resin
artificial
forming bodies
bodies
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 - Lifetime
Application number
US755225A
Inventor
Trozmuller Friedrich Josef
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.)
Semperit AG Holding
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Semperit AG Holding
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 Semperit AG Holding filed Critical Semperit AG Holding
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Publication of US2558632A publication Critical patent/US2558632A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/14—Processes for the fixation or treatment of textile materials in three-dimensional forms
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • 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
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics

Definitions

  • the invention relates to a process for pressing bodies of artificial resins.
  • pressing artificial resin bodies and in particular such as are composed of fibrous material impregnated with phenol resins the pressing of which is carried out in the hot state, it has been found practically impossible to prevent the adhesion of the artificial resin bodies to the parts of the form or the dies of the press.
  • the invention has for its object to eliminate these drawbacks, and substantially consists in incorporating a form lubricating means in the surface of the body to be pressed which contacts the form. Tests made have shown that the die does not stick or adhere to the form if the process according to the invention is applied.
  • the incorporation of the lubricating means in the surface zone of the stamped body, contacting the form parts may be carried out in such a manner that at least one fibrous layer containing a lubricating means for the form is provided in the contacting zones.
  • the invention may be realized in a simple manner by adding the lubricating means required at least to one of the layers adjacent to the form.
  • the drawing shows an artificial resin body in side elevation by way of example, said body being composed of various fibrous layers which are impregnated with artificial resins.
  • the layers of the fibrous substance bodies containing artificial resins are designated by the numerals i and 2, Whereas the fibrous layers containing the lubricating means for the form are designated by the numerals 3 and. 4.
  • the fibrous substance bodies containing artificial resins and the fibrous layers containing the lubricating means may either be united in advance of the pressing operation and thus introduced into the press as a unit, or the individual layers may be inserted into the press separately, whereupon the press is closed, and the layers are heated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Pens And Brushes (AREA)

Description

June 26, 1951 F. J. TROZMULLER 2 PROCESS FOR FORMING BODIES OF ARTIFICIAL RESIN AND FIBROUS MATERIAL Filed June 17, 1947 INVENTOR FRIEDRICH JOSEF TROZMULLER BY flaw-i 4% m2,
AGENTS Patented June 26, 1951 [TED OFFICE PROCESS FOR FORMING BODIES F ARTI- FICIAL RESIN AND FIBROUS MATERIAL Application June 17, 1947, Serial No. 755,225 In Germany September 7, 1940 Section 1, Public Law 690, August 8, 1946 Patent expires September 7, 1960 1 Claim.
The invention relates to a process for pressing bodies of artificial resins. When pressing artificial resin bodies and in particular such as are composed of fibrous material impregnated with phenol resins, the pressing of which is carried out in the hot state, it has been found practically impossible to prevent the adhesion of the artificial resin bodies to the parts of the form or the dies of the press.
For this purpose fatty substances, waxes, and the like have been added to the artificial resins, already during the pressing stage, but this measure has not eliminated the disadvantages mentioned above, apart from the fact that these additions alter the entire artificial resin mass. Furthermore, it has been proposed to lubricate the parts of the form with parafiin, or the like without, however, attaining the result desired. Besides, this treatment with parafiin was found to be disadvantageous since the hardening of the plastic masses is impaired, in particular retarded, considering that an accurate dosage of the quantity of fat just sufficient to detach the die from the form is impossible. The same negative result was obtained for the same reason when spraying a lubricating or greasing means on the form. Also the application of a cover of cadmium on the pressing faces was not successful. Finally experiments have been made with nonimpregnated absorbing papers inserted between the body of artificial masses proper and the respective part of the form. But this measure, too, was incapable of preventing the artificial resin body from sticking to the form.
The invention has for its object to eliminate these drawbacks, and substantially consists in incorporating a form lubricating means in the surface of the body to be pressed which contacts the form. Tests made have shown that the die does not stick or adhere to the form if the process according to the invention is applied.
The incorporation of the lubricating means in the surface zone of the stamped body, contacting the form parts, may be carried out in such a manner that at least one fibrous layer containing a lubricating means for the form is provided in the contacting zones. In case of bodies composed of fibrous layers, impregnated with artificial resins, the stamping of which according to the invention is of particular interest, the invention may be realized in a simple manner by adding the lubricating means required at least to one of the layers adjacent to the form.
The drawing shows an artificial resin body in side elevation by way of example, said body being composed of various fibrous layers which are impregnated with artificial resins.
The layers of the fibrous substance bodies containing artificial resins are designated by the numerals i and 2, Whereas the fibrous layers containing the lubricating means for the form are designated by the numerals 3 and. 4. During the pressing operation the layers 3 and will prevent the artificial resin body from sticking to the form parts. The fibrous substance bodies containing artificial resins and the fibrous layers containing the lubricating means may either be united in advance of the pressing operation and thus introduced into the press as a unit, or the individual layers may be inserted into the press separately, whereupon the press is closed, and the layers are heated.
While the invention has been shown in the particular embodiment described it is not limited thereto, as modifications thereof may be made without departing from the scope of the ap pended claim.
I claim: 7
In a process for forming bodies of artificia resins having a sheet of fibrous material welded to a surface thereof, the steps of inserting a layer of artificial resin and at least one sheet of fibrous substance impregnated with a lubricating material between press members, and pressing said layer and sheet together to form said body.
FRIEDRICH JOSEF TRGZMfiILER.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,164,099 Kline Dec. 14, 1915 1,352,436 Dickey Sept. 14, 1920 1,944,464 Richardson Jan. 23, 1934 2,067,580 Rohm Jan. 12, 1937 2,139,054 Wilson Dec. 6, 1938 2,293,914 Nanfeldt Aug. 25, 1942 2,303,436 Clark Dec. 1, 1942 FOREIGN PATENTS Number Country Date 760,048 Germany Nov. 8, 1944
US755225A 1940-09-07 1947-06-17 Process for forming bodies of artificial resin and fibrous material Expired - Lifetime US2558632A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE659056X 1940-09-07
DE2558632X 1940-09-07
DE253066X 1940-09-07

Publications (1)

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CH (1) CH253066A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964800A (en) * 1955-08-24 1960-12-20 Dorsett Roscoe Manufacture of a wall
EP0113117A1 (en) * 1982-12-30 1984-07-11 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing molded thermoplastic resin
US20030132542A1 (en) * 2002-01-17 2003-07-17 Penske Composites, Inc. Fastener retention foam sheet and associated methods
US20030134103A1 (en) * 2002-01-17 2003-07-17 Herman Novak Fastener retention foam sheet and associated method
US20030143366A1 (en) * 2002-01-17 2003-07-31 Jerry Foley Polymeric and fibrous laminate and methods of forming and using same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1164099A (en) * 1914-08-18 1915-12-14 John W Barkalow Process and apparatus for making cement or concrete building-stone.
US1352436A (en) * 1918-12-30 1920-09-14 Westinghouse Electric & Mfg Co Method of forming composite bodies
US1944464A (en) * 1928-03-28 1934-01-23 Cutler Hammer Inc Art of treating plastic molding compositions including a fibrous filler and an organic binder
US2067580A (en) * 1933-10-09 1937-01-12 Rohm & Haas Method of polymerizing organic compounds
US2139054A (en) * 1932-08-17 1938-12-06 Econo Products Inc Method of producing printing plates
US2293914A (en) * 1940-06-04 1942-08-25 World Bestos Corp Process of making friction lining
US2303436A (en) * 1937-10-23 1942-12-01 American Seal Kap Corp Method of making rigid articles
DE760048C (en) * 1940-09-08 1954-01-18 Semperit Gummiwerke A G Method for pressing synthetic resin bodies

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1164099A (en) * 1914-08-18 1915-12-14 John W Barkalow Process and apparatus for making cement or concrete building-stone.
US1352436A (en) * 1918-12-30 1920-09-14 Westinghouse Electric & Mfg Co Method of forming composite bodies
US1944464A (en) * 1928-03-28 1934-01-23 Cutler Hammer Inc Art of treating plastic molding compositions including a fibrous filler and an organic binder
US2139054A (en) * 1932-08-17 1938-12-06 Econo Products Inc Method of producing printing plates
US2067580A (en) * 1933-10-09 1937-01-12 Rohm & Haas Method of polymerizing organic compounds
US2303436A (en) * 1937-10-23 1942-12-01 American Seal Kap Corp Method of making rigid articles
US2293914A (en) * 1940-06-04 1942-08-25 World Bestos Corp Process of making friction lining
DE760048C (en) * 1940-09-08 1954-01-18 Semperit Gummiwerke A G Method for pressing synthetic resin bodies

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964800A (en) * 1955-08-24 1960-12-20 Dorsett Roscoe Manufacture of a wall
EP0113117A1 (en) * 1982-12-30 1984-07-11 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing molded thermoplastic resin
US4629650A (en) * 1982-12-30 1986-12-16 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing molded thermoplastic resin
US20030132542A1 (en) * 2002-01-17 2003-07-17 Penske Composites, Inc. Fastener retention foam sheet and associated methods
US20030134103A1 (en) * 2002-01-17 2003-07-17 Herman Novak Fastener retention foam sheet and associated method
US20030143366A1 (en) * 2002-01-17 2003-07-31 Jerry Foley Polymeric and fibrous laminate and methods of forming and using same
US6863970B2 (en) 2002-01-17 2005-03-08 Penske Composites Fastener retention foam sheet and associated method
US6902694B2 (en) 2002-01-17 2005-06-07 Penske Composites Inc. Fastener retention foam sheet and associated methods

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Publication number Publication date
CH253066A (en) 1948-02-15

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