US1598246A - Method of combining leather and caoutchouc - Google Patents
Method of combining leather and caoutchouc Download PDFInfo
- Publication number
- US1598246A US1598246A US63543A US6354325A US1598246A US 1598246 A US1598246 A US 1598246A US 63543 A US63543 A US 63543A US 6354325 A US6354325 A US 6354325A US 1598246 A US1598246 A US 1598246A
- Authority
- US
- United States
- Prior art keywords
- leather
- caoutchouc
- combining
- dried
- air
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
Definitions
- My invention refers to means for combinabove described, whereupon it is mixed with ing leather with caoutchouc. It is an object a thinly fluid caoutchouc solution to form a 45 of my inventionto produce such combinapnlp which is then carefully kneaded and tion in a more. eificient manner than was dried at an elevated temperature until the v hitherto possible. material has obtained a satisfactory adhe- In combining leather with caoutchouc care sive power. has been taken to employ air dried leather, TVVith the mass thus obtained plastic prod 6 that is leather dried at the air or in the sun, nets of different kinds can be produced.
- vulcanization at an 60 the leather, which may be air dried, is subelevated temperature may be dispensed with, jected to a further-drying treatment, prefif it is however desired to produce soles,
- caoutchouc comprising the step of drying 80
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
UNITED STATES-PATENT OFFICE.
ROBERT MEYER, F HA NN OVER, GERMANY.
METHOD OF COMBINING LEATHER AND CAQUTGHOUC.
No Drawing. Applicatibn filed October 19, 1925, Serial No. 63,548, and in Germany August 1, 1928.
:My invention refers to means for combinabove described, whereupon it is mixed with ing leather with caoutchouc. It is an object a thinly fluid caoutchouc solution to form a 45 of my inventionto produce such combinapnlp which is then carefully kneaded and tion in a more. eificient manner than was dried at an elevated temperature until the v hitherto possible. material has obtained a satisfactory adhe- In combining leather with caoutchouc care sive power. has been taken to employ air dried leather, TVVith the mass thus obtained plastic prod 6 that is leather dried at the air or in the sun, nets of different kinds can be produced.
\ inasmuch as leather laden with moisture will Although in consequence of the preheatnot enter into an intimate and stable coming of the leather a stable combination with bination with caoutchouc and on being vulcaoutchouc can be produced, the-stability of canized will become brittle. It is however the products is increased if they are sub-' 55 'Well known that the use of air dried leather jected to vulcanization, preferably after adddoes not altogether obviate the difliculties ing sulphur, either in the cold or at an eleencountered in combining these two sub? vated temperature.
stances. If it is for instance intended to treat In accordance with the present invention macerated leather chips, vulcanization at an 60 the leather, which may be air dried, is subelevated temperature may be dispensed with, jected to a further-drying treatment, prefif it is however desired to produce soles,
erably by heating it in dry air, for instance heels or the like for shoes or a floor coverin' an air dryer during about twenty-four ing, it is preferable to resort to hot vulcanihours to about 50 C. and preventing it zation inasmuch as the final product thus ob- 65 from coming in contact with moist airunt il tained is more durable than leather. The it is combined with the caoutchouc. To this vulcanization-can be efiected in such cases at 55 end the leather thus dried is either stored high temperatures inasmuch as there is no under the exclusion of air or the combinadangerrof the final product getting brittle. tionwith caoutchouc is effected immediate- For I have ascertained that brittleness is 7 ly after the leather has been withdrawn from merely caused by a moisture content of the the air dryer. In this manner the absorpleather.
tion of moisture can be prevented. I wish it to be understood that- I do not Preferably leather dried according to the desire to be limited to the actual sequences present invention is, immediately after the of operations, proportions and other details 7 drying operation has come to an end, imabove described for obvious modifications mersed in a rubber solution, that is a soluwill occur to a person skilled in the art.
tion of caoutchouc in petrol,- whereby the I claim e pores of the leather are closed so s t The method of combining leather and prevent the admission of moisture. caoutchouc comprising the step of drying 80 In practicing my invention I prefer emthe leather for about 24 hours at about ploying Waste leather and preferably the (3., taking care to prevent access of air to pieces of leather are comminuted bv macerathe leather thus dried, and treating same tion or. b grinding, whereupon the dust is with a solution of caoutchouc. 1 removed by sieving and the fibrous or pul- In testimony whereof I aflix my signature. verulent mass. is 'now dried in the manner ROBERT MEYER.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1598246X | 1923-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1598246A true US1598246A (en) | 1926-08-31 |
Family
ID=7736816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US63543A Expired - Lifetime US1598246A (en) | 1923-08-01 | 1925-10-19 | Method of combining leather and caoutchouc |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1598246A (en) |
-
1925
- 1925-10-19 US US63543A patent/US1598246A/en not_active Expired - Lifetime
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