US1809738A - Process for treating resins - Google Patents
Process for treating resins Download PDFInfo
- Publication number
- US1809738A US1809738A US253203A US25320328A US1809738A US 1809738 A US1809738 A US 1809738A US 253203 A US253203 A US 253203A US 25320328 A US25320328 A US 25320328A US 1809738 A US1809738 A US 1809738A
- Authority
- US
- United States
- Prior art keywords
- bleaching
- resin
- resins
- solution
- agents
- 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
- 239000011347 resin Substances 0.000 title description 27
- 229920005989 resin Polymers 0.000 title description 27
- 238000000034 method Methods 0.000 title description 13
- 239000007844 bleaching agent Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical class O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 10
- 238000004061 bleaching Methods 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- 235000019256 formaldehyde Nutrition 0.000 description 4
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229960001922 sodium perborate Drugs 0.000 description 2
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 241001474374 Blennius Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
Definitions
- the invention relates to a process for treating resins.
- One of the principal objects of the invention is to harden dark, and even light resins, such as tree-stump resin or bal- 5 sam resin, at the same time as bleaching them.
- the cheap dark resins could hitherto only be used to a limited extent, e. g. for sizing pasteboard and wrapping papers. It is possible by the invention to improve the proper ties of dark resins so that fine qualities of paper can be sized therewith. It has already been proposed to bleach dark resins by dissolving them for example in benzine and treating them with bleaching agents. A special expensiveprocess was necessary for this purpose, however, and the resinsthus purified easily turn dark subsequently.
- the resins are dissolved in alkaline solutions and the solution is subjected to treatment therein e. g. a bleaching and hardening process.
- treatment therein e. g. a bleaching and hardening process.
- the solution of the resin is effected in a cold dilute alkaline lye which has the advantage that only a very small portion of the resin is saponified in the cold dilute solution and it goes into solution practically entirely as free resin.
- the bleaching and hardening agents can be added to the resin during solution or following thereon.
- the usual bleaching agents such as hydrogen peroxide, sodium perborate, and others can be used.
- These usual bleaching agents are used in the new process along with suitable hardening agents such as henols or aldehydes for example formaldel fyde, furfurol and the like.
- bleaching agents used in addition to aldehydes, phenols and other hardening agents, serve mainly to assist the reaction. It is advantageous to include carbon dioxide or salts containing carbon dioxide, such as for example sodium bicarbonate, in the remaining bleaching agents.
- a special features of the process according to the present invention is that the known additions such as water glass, animal and vegetable sizes, seaweed and etc., which are added to the resin, for example, in the manufacture of resin size for the paper industry for economical reasons, are added to the alkaline solution of resin and treated along with the latter. These additions are also favourably afiected, purified and partially bleachedin the combined solution.
- the resins are dissolved in the cold in a dilute alkaline lye which is kept in continuous motion by stirring mechanism, pumps, air circulation or the like. Any additional substances are also admixed with this solution.
- the usual bleaching agents for example, hydrogen peroxide, sodium perborate, or others, which can be added separately or several together, can be added to the resin solution during solution or following immediately thereon.
- Aldehydes such as formaldehydes or furfurol, are added in addition to these bleaching agents, which, together with the usual bleaching agents, effect excellent bleaching or decolourization of the resin solution and also harden the resin at the same time.
- This bleaching and hardening process is carried out in the cold. The action can be assisted by adding phenols and other hardening agents.
- Iclaim 1. A process for bleaching resins which consists in subjecting them in an alkaline lye in the cold with continuous movement to the common action of a bleaching agent and of formaldehyde.
- a process for bleaching resins which consists in subjecting them in an alkaline lye in the cold with continuous movement to the common action of a bleaching agent
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
Description
Patented June 9, 1931 PAUL STUHLMANN, 0F COLOGNE-LINDENTHAL, GERMANY PROCESS FOR TREATING RESINS No Drawing. Application filed February 9, 1928, Serial No. 253,203, and in Germany January 24, 1927.
The invention relates to a process for treating resins. One of the principal objects of the invention is to harden dark, and even light resins, such as tree-stump resin or bal- 5 sam resin, at the same time as bleaching them.
Further objects are to provide improved processes of bleaching and/or hardening natural resins and to produce improved products therefrom.
The cheap dark resins could hitherto only be used to a limited extent, e. g. for sizing pasteboard and wrapping papers. It is possible by the invention to improve the proper ties of dark resins so that fine qualities of paper can be sized therewith. It has already been proposed to bleach dark resins by dissolving them for example in benzine and treating them with bleaching agents. A special expensiveprocess was necessary for this purpose, however, and the resinsthus purified easily turn dark subsequently.
In the process according to the present invention, the resins are dissolved in alkaline solutions and the solution is subjected to treatment therein e. g. a bleaching and hardening process. Thus the advantage is obtained that the solution of the resins required for working up to paper size and the bleaching and hardening thereof are combined in a single process.
The solution of the resin is effected in a cold dilute alkaline lye which has the advantage that only a very small portion of the resin is saponified in the cold dilute solution and it goes into solution practically entirely as free resin.
The bleaching and hardening agents can be added to the resin during solution or following thereon. The usual bleaching agents such as hydrogen peroxide, sodium perborate, and others can be used. These usual bleaching agents are used in the new process along with suitable hardening agents such as henols or aldehydes for example formaldel fyde, furfurol and the like.
It has been discovered that the dissolved resin is not only hardened by (for example) aldehyde, but is also at the same time bleached, which increases the effectiveness and the value of the resin considerably. The
other suitable bleaching agents used in addition to aldehydes, phenols and other hardening agents, serve mainly to assist the reaction. It is advantageous to include carbon dioxide or salts containing carbon dioxide, such as for example sodium bicarbonate, in the remaining bleaching agents.
A special features of the process according to the present invention is that the known additions such as water glass, animal and vegetable sizes, seaweed and etc., which are added to the resin, for example, in the manufacture of resin size for the paper industry for economical reasons, are added to the alkaline solution of resin and treated along with the latter. These additions are also favourably afiected, purified and partially bleachedin the combined solution.
An example of the process for carrying out the present invention is given herewith.
The resins, more or less finely divided and, if necessary, ground, are dissolved in the cold in a dilute alkaline lye which is kept in continuous motion by stirring mechanism, pumps, air circulation or the like. Any additional substances are also admixed with this solution.
The usual bleaching agents, for example, hydrogen peroxide, sodium perborate, or others, which can be added separately or several together, can be added to the resin solution during solution or following immediately thereon. Aldehydes, such as formaldehydes or furfurol, are added in addition to these bleaching agents, which, together with the usual bleaching agents, effect excellent bleaching or decolourization of the resin solution and also harden the resin at the same time. This bleaching and hardening process is carried out in the cold. The action can be assisted by adding phenols and other hardening agents.
It is advantageous in all cases to have carbon dioxide or salts of carbonic acid present amongst-the bleaching agents. Excellent results' are obtained, for example, when the resin is dissolved with addition of sodium bicarbonate and is bleached and hardened with formaldehyde and hydrogen peroxide,
casein vegetable substances,.
Iclaim: 1. A process for bleaching resins which consists in subjecting them in an alkaline lye in the cold with continuous movement to the common action of a bleaching agent and of formaldehyde.
2. A process for bleaching resins which consists in subjecting them in an alkaline lye in the cold with continuous movement to the common action of a bleaching agent,
and of formaldehyde in the presence of carbonic acid.
In testimony whereof, I have signed my name to this specification at Cologne, Germany, this 25 day of January, 1928.
PAUL STUHLMANN.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1809738X | 1927-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1809738A true US1809738A (en) | 1931-06-09 |
Family
ID=7744240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US253203A Expired - Lifetime US1809738A (en) | 1927-01-24 | 1928-02-09 | Process for treating resins |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1809738A (en) |
-
1928
- 1928-02-09 US US253203A patent/US1809738A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1809738A (en) | Process for treating resins | |
| US1149420A (en) | Process of utilizing the organic as well as the inorganic constituents of the waste liquor produced by the boiling of sulfite cellulose. | |
| US1580136A (en) | Process for bleaching organic materials | |
| US1412523A (en) | Process for bleaching foods | |
| US1573385A (en) | Treatment of earthy minerals | |
| US1786890A (en) | Method of manufacturing cellulose and textile fibers from vegetable matter | |
| US2418981A (en) | Method of producing tanning materials from waste sulfite liquor | |
| US1764601A (en) | Product and process of making the same from sulphite waste liquors | |
| SE7403451L (en) | ||
| GB282829A (en) | ||
| US1970065A (en) | Process of bleaching pulp and other lignified materials | |
| US1386521A (en) | Process for the manufacture of artificial threads, ribbons, films, or plates, from viscose | |
| GB289859A (en) | Process for bleaching and hardening resins | |
| GB257774A (en) | Improvements in process for reclaiming used paper | |
| DE557537C (en) | Process for the production of a very low-resin cellulose | |
| GB269909A (en) | Improvements in or relating to treating residual liquors accruing from the treatment of cellulose material | |
| GB235635A (en) | Improvements in and relating to the manufacture of glue, gelatine and meal from fish and other offal of marine origin | |
| US1737590A (en) | Chemical pulping process | |
| US803392A (en) | Process of liberating, separating, and bleaching fibers. | |
| US431243A (en) | Franz carl alkier | |
| US1523982A (en) | Tanning | |
| SU518544A1 (en) | Cellulose Bleaching Method | |
| US1483630A (en) | Method of preserving and treating paper pulp | |
| US1681369A (en) | Purifying phenolaldehyde resins | |
| US1394151A (en) | Process of treating waste sulfite liquor and compound obtained therefrom |