US2048475A - Friction padding material - Google Patents
Friction padding material Download PDFInfo
- Publication number
- US2048475A US2048475A US487921A US48792130A US2048475A US 2048475 A US2048475 A US 2048475A US 487921 A US487921 A US 487921A US 48792130 A US48792130 A US 48792130A US 2048475 A US2048475 A US 2048475A
- Authority
- US
- United States
- Prior art keywords
- felt
- friction
- padding material
- rubber
- padding
- 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
Links
- 239000000463 material Substances 0.000 title description 3
- 239000004744 fabric Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009950 felting Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- NOUUUQMKVOUUNR-UHFFFAOYSA-N n,n'-diphenylethane-1,2-diamine Chemical compound C=1C=CC=CC=1NCCNC1=CC=CC=C1 NOUUUQMKVOUUNR-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
-
- 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
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
-
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31826—Of natural rubber
Definitions
- This invention relates to resilient padding material characterized by a highsurface coefiicient of friction on one side and sometimes, but not always, by adhesiveness on the opposite side and it consists of a felt 0r feltlike fabric having one surface so treated as to coat the surface fibers with a light deposit of .rubber derived from a freely fluid solution or aqueous dispersion thereof and thereafter vulcanized in place and, if desired, having the opposed surface so treated as to coat the surface fibers with a deposit of rubber and a softener therefor derived from a freely fluid solution or aqueous dispersion thereof, all as more fully and hereinafter described.
- Felt is commonly used as a padding for objects which rest upon or are moved about on such polished surfaces as those of ofiice furniture and the like.
- the common telephone desk set represents an object of a movable type which is usually padded with felt or a like fabric.
- Plate glass desk tops represent a type of stationary object which is commonly held out of contact with its supporting polished surface by. means of felt orother padding.
- the padding is usually restricted to a narrow strip at or close to the outer edges.
- the telephone desk set above mentioned and more particularly telephone desk sets of the dial type tend to slip or slide on polished surfaces when provided with the usual base padding of felt.
- the felt admirably functions to prevent marring of polished surfaces with which it contacts
- the felt has a very low coefficient of friction and does not materially assist in holding the instrument in place when the latter is in use and particularly does not offer adequate resistance to the lateral thrust of the operator's fingers when the dial is being manipulated.
- fabrics and particularly 6 certain punched felts e. g., feltlike fabrics composed of a woven core through which felting fibers have been threaded by a punching operation, are structurally suited to resist the forces tending to distort them when subjected to frictional strain. 10 Fabrics and these punched felts are, as nonmarring pads, fully as satisfactory as ordinary felt of the same compactibility, as they retain their cushioning resiliency.
- Figure 1 of the drawing shows my invention in magnified cross-section ll indicates the sup- 55 July 21, 1936.
- c SNYDER 2,048,476
Description
Patented July 21, 1936 UNITED STATES 2,048,475 7 mission rnnnme MATERIAL Willard Jordan Slagle, Cambridge, Mass, as-
signor to Dewey and Almy Chemical Company,
North Cambridge, Massachusetts Mass., a corporation of Application October 10, 1930, Serial No. 487,921 3 Claims. (Cl. 154-43) This invention relates to resilient padding material characterized by a highsurface coefiicient of friction on one side and sometimes, but not always, by adhesiveness on the opposite side and it consists of a felt 0r feltlike fabric having one surface so treated as to coat the surface fibers with a light deposit of .rubber derived from a freely fluid solution or aqueous dispersion thereof and thereafter vulcanized in place and, if desired, having the opposed surface so treated as to coat the surface fibers with a deposit of rubber and a softener therefor derived from a freely fluid solution or aqueous dispersion thereof, all as more fully and hereinafter described.
Felt is commonly used as a padding for objects which rest upon or are moved about on such polished surfaces as those of ofiice furniture and the like. The common telephone desk set represents an object of a movable type which is usually padded with felt or a like fabric. Plate glass desk tops represent a type of stationary object which is commonly held out of contact with its supporting polished surface by. means of felt orother padding. In'this instance, the padding is usually restricted to a narrow strip at or close to the outer edges. The telephone desk set above mentioned and more particularly telephone desk sets of the dial type tend to slip or slide on polished surfaces when provided with the usual base padding of felt. While, in this instance, the felt admirably functions to prevent marring of polished surfaces with which it contacts, the felt has a very low coefficient of friction and does not materially assist in holding the instrument in place when the latter is in use and particularly does not offer adequate resistance to the lateral thrust of the operator's fingers when the dial is being manipulated.
I am aware that heretofore attempts have been made to increase the co'emcient of friction of the usual telephone base, but whenever asubstantial increase in coeificient of friction has been achieved, it has been found that the accompanying strain on the felt results in a progressive stretch of the latter. It is obvious that to be satisfactory in service, not only from the standpoint of sightliness but from that of utility as well, the fabric pad must be tight to the metalbase of the instrument itself. Because of the construction of the usual instrument the above mentioned objectionable stretch may not be obviated by such obvious expedients as gluing the felt to the metal, since the felt base is preferably susceptible of ready removal or replacement, etc.
It is an object of this invention to provide a non-marring pad for movable objects, particularly telephone desk sets, which shall have a high coemcient of friction and yet remain tight to the L base of the object in service. g t I have discovered that fabrics and particularly 6 certain punched felts, e. g., feltlike fabrics composed of a woven core through which felting fibers have been threaded by a punching operation, are structurally suited to resist the forces tending to distort them when subjected to frictional strain. 10 Fabrics and these punched felts are, as nonmarring pads, fully as satisfactory as ordinary felt of the same compactibility, as they retain their cushioning resiliency. In the practice of this invention I apply rubber l5 and compounding ingredients preferably in an aqueous dispersion and usually in the form of a spray to the surface fibers of one side of a felt or feltlike fabric preferably of the punched type. I then dryto remove the water of the dispersion (or solvent if such has been used) and deposit the rubber and compound upon the surface fibers and then subject the so-treated fabric to a sumciently elevated temperature to effect vulcanization of the rubber. Preferably I avoid such compacting pressure as would impair the open texture of the fiber surface and thus obtain a surface in which the fibers are more or' less individually coated with rubber while still in normally spaced relationship. 30 The following is a suitable compound for the purposes of this invention when applied in such amount as to yield about one ounce per square yard when dry: 1 Per cent Rubber latex solids.-- 13.00 Ammonia 0.20 Antioxidant Stabilite" 0.26 Accelerator (diphenyl guanidine) 0.26
Sulfur 0.26 40 Zinc oxide 0.52 Glue- 0.70 Dispersing agent rvan 0.03 Coloring pigments...v 0.90
It will be clear to those skilled in the art that this illustrative formula may be modified without departing from .the scope of the invention. I have found, however, that both as to the coeflicient of friction and the resistance to oxidation or ageing the. above formula represents a substantially optimum ratio for the several ingredients.
Figure 1 of the drawing shows my invention in magnified cross-section ll indicates the sup- 55 July 21, 1936. c, SNYDER 2,048,476
BOX
Filed May 12, 1931 INVENTOH ATTORNEY. 27
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487921A US2048475A (en) | 1930-10-10 | 1930-10-10 | Friction padding material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487921A US2048475A (en) | 1930-10-10 | 1930-10-10 | Friction padding material |
Publications (1)
Publication Number | Publication Date |
---|---|
US2048475A true US2048475A (en) | 1936-07-21 |
Family
ID=23937664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US487921A Expired - Lifetime US2048475A (en) | 1930-10-10 | 1930-10-10 | Friction padding material |
Country Status (1)
Country | Link |
---|---|
US (1) | US2048475A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2429121A (en) * | 1942-06-17 | 1947-10-14 | Seamless Rubber Co | Method of making rubber goods |
-
1930
- 1930-10-10 US US487921A patent/US2048475A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2429121A (en) * | 1942-06-17 | 1947-10-14 | Seamless Rubber Co | Method of making rubber goods |
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