US1377193A - Production op molded articles - Google Patents
Production op molded articles Download PDFInfo
- Publication number
- US1377193A US1377193A US1377193DA US1377193A US 1377193 A US1377193 A US 1377193A US 1377193D A US1377193D A US 1377193DA US 1377193 A US1377193 A US 1377193A
- Authority
- US
- United States
- Prior art keywords
- binder
- molded articles
- resin
- oxidized
- filler
- 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
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000000463 material Substances 0.000 description 66
- 239000000203 mixture Substances 0.000 description 48
- 239000011230 binding agent Substances 0.000 description 44
- 239000011347 resin Substances 0.000 description 42
- 229920005989 resin Polymers 0.000 description 42
- 239000000945 filler Substances 0.000 description 34
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 16
- 229920000742 Cotton Polymers 0.000 description 14
- 244000144992 flock Species 0.000 description 14
- 238000000227 grinding Methods 0.000 description 12
- 230000001590 oxidative Effects 0.000 description 12
- 239000004927 clay Substances 0.000 description 10
- 229910052570 clay Inorganic materials 0.000 description 10
- 229920002456 HOTAIR Polymers 0.000 description 8
- 239000002657 fibrous material Substances 0.000 description 8
- 239000002966 varnish Substances 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000009835 boiling Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- LKJPSUCKSLORMF-UHFFFAOYSA-N Monolinuron Chemical compound CON(C)C(=O)NC1=CC=C(Cl)C=C1 LKJPSUCKSLORMF-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000009739 binding Methods 0.000 description 2
- 230000027455 binding Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000012254 powdered material Substances 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
- G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
Definitions
- molded articles especially phonograph rec- .ord blanks, and more particularly to an improved material or composition for such molded articles, an improved binder for said material and the processes of making the same.
- the principal object of the invention resides in the production of a comparativel cheap material for molded articles which is of superior quality so that when formed into a molded article under heat and pressure, it will be hard, tough, substantially non-crystalline, very smooth and of sub-.
- I first make the binder for the material to be molded by oxidizing any of a number of different resins, but preferably ordinary pine rosin.
- oxidizing the resin the same is preferably boiled for a considerable period with an oxidizing agent, such, for example, as peroxid of lead, the amount ofiperoxid of lead preferably being from 2%% to 6% by weight of the-resin.
- an oxidizing agent such, for example, as peroxid of lead, the amount ofiperoxid of lead preferably being from 2%% to 6% by weight of the-resin.
- the binder produced as described above is then mixed with a filler material.
- a filler material comprising any suitable finely divided inert substance, such as china cla and a small quantity of fibrous materia, preferably cotton fflock, in a mixer which is heated to about 325 degrees Eghe mixer being operated until the ingredi ts are thoroughly mixed.
- the material is now removed from the mixer, cooled, and. then ground fine in a ball or pebble mill. During the grinding of the material, it is subjected to a stream of hot air in order to still further oxidize the resin binder. The material is subjected to the action of the current of hot air until the proper degree of oxidization is attained. Instead of oxidizing the material during the grinding thereof, it may be oxidized after being ground, by removing the same from the grinding mill and putting it into a revolving cylinder through which hot air is forced. After being ground, the material is ready for molding. In making disk record blanks, the powdered material produced by the ball or dpebble mill is placed in suitable molds a'n formed under hydraulic pressure and heat into disks. thus produced are very smooth and the disks are hard and tough and of substantially uniform density, being entirely free of hard spots such as are sometimes present in disk record blanks of a similar character heretofore produced.
- Disk record blanks formed as described above may be covered with a suitable veneer or coating designed to be impressed with a sound record matrix, such as'the varnish consisting of "a. mixture of phenol resin and painting the same onto the blank. After the varnish has dried, the sound record 1s impressed therein under great heat and pressure in asuitable-mold provided with a sound record matrix. Blanks formed of my The surfaces of the disks improved material including the oxidized I res1n binder, will not flow to any great extent during the imprinting of the sound record in this manner. Sound records thus produced will be free from run outs due I tothe absence of hard spots in the blanks formed of my improved material. 'Moreover, such records, when reproduced, are substantially free from ',scratch.
- a suitable veneer or coating designed to be impressed with a sound record matrix, such as'the varnish consisting of "a. mixture of phenol resin and painting the same onto the blank. After the varnish has dried, the sound record 1s impressed therein under great heat and pressure in asuit
- a composition adapted for use in forming molded articles comprising a finely divided filler material held together by a binder comprising an oxidized resin, substantially as descr bed.
- composition adapted for use in forming molded, articles comprising a mixture of finely divided material and fibrous material as a filler, held together by a binder comprising as described.
- a composition adapted for use in forming molded articles comprising finely divided filler material held together by a binder consisting of oxidized rosin, substantially as described. 7
- a binder adapted for material from which the molded articles are formed, the
- a composition adapted for use in forming molded articles comprising a mixture of finely divided material and cotton flock as a filler, held together by a binder comprising an oxidized resin, substantially as described.
- composition adapted for use in forming molded articles comprising a mixture of powdered china clay and fibrous material as a filler, held together by a binder comprising -an oxidized resin, substantially as described.
- composition adapted for use in forming molded articles comprising a mixture ofp'owdered china clay and cotton flock as a filler held together by a binder comprisin w an oxidized resin, substantially as describe Y 9..
- the oxidized resin with a finely divided filler material, grinding the mixture and subjecting the same to an oxidizing action, substantially as described.
- A-sound record blank formed from a composition comprising finely divided filler material held together by a binder comprising an oxidized resin, substantially as described.
- a sound record blank formed from a composition comprising finely divided filler material held togther by a binder comprising oxidized rosin, substantially as described.
- a sound record blank formed of a composition comprising finely divided material containing fibrous material as a filler, held together by a. binder comprising an oxidized resin, substantially as described.
- a sound record blank formed of a compositioncomp'rising finely divided ma terial containingcotton flock as a filler, held together by a binder comprising an oxidized resin, substantially as described. 7
- a sound record blank formed of a composition comprising a mixture of 'pow-' dered china clay and fibrous materlal as a filler, held togther by a binder comprisin an oxidized resin, substantially as describe 19.
- a sound record blank formed of a composition comprising a -mixture of powdered china cla and cotton flock'a-s a filler, held together y a binder comprising an oxidized resin, substantially as described. This specification signedthis-15th day of January, 1919.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
OFFICE.
THOMAS A. EDISON, OF WEST ORANGE, NEW JERSEY, ASSIG-NOR TO NEW JERSEY PATENT COMPANY, OF WEST ORANGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.
PRODUCTION OF MOLDED ARTICLES.
1,337,193, Specification of Letters Patent. No Drawing.
molded articles, especially phonograph rec- .ord blanks, and more particularly to an improved material or composition for such molded articles, an improved binder for said material and the processes of making the same.
The principal object of the invention resides in the production of a comparativel cheap material for molded articles which is of superior quality so that when formed into a molded article under heat and pressure, it will be hard, tough, substantially non-crystalline, very smooth and of sub-.
stantially uniform density and texture throughout.
In carrying out my invention, I first make the binder for the material to be molded by oxidizing any of a number of different resins, but preferably ordinary pine rosin. In oxidizing the resin, the same is preferably boiled for a considerable period with an oxidizing agent, such, for example, as peroxid of lead, the amount ofiperoxid of lead preferably being from 2%% to 6% by weight of the-resin. {The resin so oxidized constitutes a binder of superior quality inthe form of astifi' liquid which is neither too sticky nor too brittle when hardened.
The binder produced as described above is then mixed with a filler material. compris ing any suitable finely divided inert substance, such as china cla and a small quantity of fibrous materia, preferably cotton fflock, in a mixer which is heated to about 325 degrees Eghe mixer being operated until the ingredi ts are thoroughly mixed. When china clay and cotton flock are used for the filler of in improved material, ,I find that good resu ts are obtained by using from 20% to 25% by weight of theoxidized resin binder, about 3% by weight of cotton flock, and from 72% to,77% by weight 'of china cla Under some circumstances, however, I find -it desirable to increase the amount .-of'cotton flock to as much as 10% or' 12% Application filed January 23, 1919. Serial No. 272,773.
china clay. Hence I do not wish to be lim-.
ited to the proportions just stated."
The material is now removed from the mixer, cooled, and. then ground fine in a ball or pebble mill. During the grinding of the material, it is subjected to a stream of hot air in order to still further oxidize the resin binder. The material is subjected to the action of the current of hot air until the proper degree of oxidization is attained. Instead of oxidizing the material during the grinding thereof, it may be oxidized after being ground, by removing the same from the grinding mill and putting it into a revolving cylinder through which hot air is forced. After being ground, the material is ready for molding. In making disk record blanks, the powdered material produced by the ball or dpebble mill is placed in suitable molds a'n formed under hydraulic pressure and heat into disks. thus produced are very smooth and the disks are hard and tough and of substantially uniform density, being entirely free of hard spots such as are sometimes present in disk record blanks of a similar character heretofore produced.
Disk record blanks formed as described above may be covered with a suitable veneer or coating designed to be impressed with a sound record matrix, such as'the varnish consisting of "a. mixture of phenol resin and painting the same onto the blank. After the varnish has dried, the sound record 1s impressed therein under great heat and pressure in asuitable-mold provided with a sound record matrix. Blanks formed of my The surfaces of the disks improved material including the oxidized I res1n binder, will not flow to any great extent during the imprinting of the sound record in this manner. Sound records thus produced will be free from run outs due I tothe absence of hard spots in the blanks formed of my improved material. 'Moreover, such records, when reproduced, are substantially free from ',scratch. lhis I believe'is due tothe fact that a blank formed of my improved material is substantially perfectly smooth, with none of the fibers or particles of the filler projecting from the body of the blank, with the result that when the sound record is impressed into the varnish. coating, none of the particles of the fibrous or other material of the blank will be forced through the varnish coating or any appreciable distance thereinto so as to form irregularities in the surface of the record grooves.
While my improved material is especially designed for use in making sound record blanks, the same is adapted for use in making numerous other molded articles. Moreover,-it isto be understood that I am not limited to'the use of the particular ingredients described in forming my improved material, nor. to the exact method described hereinv for making such material, but that my invention is subject to various changes and modifications without departure from the spirit thereof or the scope of the appended claims.
Having now described my invention,-what I claim as new and desire to protect by Letters Patent is as follows: 1. A composition adapted for use in forming molded articles, comprising a finely divided filler material held together by a binder comprising an oxidized resin, substantially as descr bed. 1
2. A composition adapted for use in forming molded, articles, comprising a mixture of finely divided material and fibrous material as a filler, held together by a binder comprising as described.
3. A composition adapted for use in forming molded articles, comprising finely divided filler material held together by a binder consisting of oxidized rosin, substantially as described. 7
4. A binder adapted for material from which the molded articles are formed, the
binding agent of which consistsof an oxidized resin, only substantially as described.
5. A binder adapted for material from which molded articles are formed, the bind ing of which consists of oxidized rosin only,
substantially as described.
6. A composition adapted for use in forming molded articles, comprising a mixture of finely divided material and cotton flock as a filler, held together by a binder comprising an oxidized resin, substantially as described.
-7. 'A composition adapted for use in forming molded articles, comprising a mixture of powdered china clay and fibrous material as a filler, held together by a binder comprising -an oxidized resin, substantially as described. V
w 8. ,A composition adapted for use in forming molded articles, comprising a mixture ofp'owdered china clay and cotton flock as a filler held together by a binder comprisin w an oxidized resin, substantially as describe Y 9.. The method of producing material adapted for use in making molded articles, which consists in oxidizing aresin, and thenan oxidized resin, substantially.
the oxidized resin with a finely divided filler material, grinding the mixture and subjecting the same to an oxidizing action, substantially as described.
12. The method of producing material adapted for use in making molded articles, which consists in oxidizinga resin, mixin the oxidized resin with a finely divided fille material, grinding the mixture, and subjecting the same to a current of hot air, substantially as described.
13. The method of producing material adapted for use in making molded articles, which consists in boiling a mixture of a resin and an oxidizing agent, then mixing the resulting product with a finely divided filler material and fibrous material with the application of heat, cooling the mixture, and then grinding the mixture and subjecting the same to an oxidizing action, substantially as described. v
14. A-sound record blank formed from a composition comprising finely divided filler material held together by a binder comprising an oxidized resin, substantially as described. i
15. A sound record blank formed from a composition comprising finely divided filler material held togther by a binder comprising oxidized rosin, substantially as described.
16. A sound record blank formed of a composition comprising finely divided material containing fibrous material as a filler, held together by a. binder comprising an oxidized resin, substantially as described.
17 A sound record blank formed of a compositioncomp'rising finely divided ma terial containingcotton flock as a filler, held together by a binder comprising an oxidized resin, substantially as described. 7
' 18. A sound record blank formed of a composition comprising a mixture of 'pow-' dered china clay and fibrous materlal as a filler, held togther by a binder comprisin an oxidized resin, substantially as describe 19. A sound record blank formed of a composition comprising a -mixture of powdered china cla and cotton flock'a-s a filler, held together y a binder comprising an oxidized resin, substantially as described. This specification signedthis-15th day of January, 1919.
p'rHos. A. EDISON,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1377193A true US1377193A (en) | 1921-05-10 |
Family
ID=3398582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1377193D Expired - Lifetime US1377193A (en) | Production op molded articles |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1377193A (en) |
-
0
- US US1377193D patent/US1377193A/en not_active Expired - Lifetime
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