Claims
- 1. A molded product consisting essentially of a portion of silicone rubber containing 5 to 75 weight percent carbon black based on the total weight of the silicone rubber, and a portion of silicone rubber containing substantially no carbon black and in which both portions of silicone rubber are obtained from an addition reaction using a platinum catalyst, said portions are united together forming a unitary body.
- 2. The molded product according to claim 1 in which the silicone rubber portion containing the carbon black contains 10 to 50 weight percent conductive grade carbon black.
- 3. The molded product according to claim 1 in which the unitary body is a two-color keyboard pad.
- 4. The molded product according to claim 1 in which the unitary body is a zebra-type connector.
- 5. The molded product according to claim 2 in which the unitary body is a two-color keyboard pad.
- 6. The molded product according to claim 2 in which the unitary body is a zebra-type connector
- 7. The molded product according to claim 1 in which the unitary body is an electrical joint.
- 8. The molded product according to claim 2 in which the unitary body is an electrical joint.
- 9. A method for making a molded product comprising contacting tightly (A) an unvulcanized, curable silicone rubber composition containing a platinum catalyst substantially no carbon black and which cures by an addition reaction using the platinum catalyst with (B) a cured silicone rubber containing 5 to 75 weight percent carbon black and which is obtained from an addition reaction using a platinum catalyst and then heating to cure the unvulcanized composition forming a unitary body from (A) and (B).
Priority Claims (1)
Number |
Date |
Country |
Kind |
56-197139 |
Dec 1981 |
JPX |
|
Parent Case Info
This application is a continuation of Ser. No. 447,588, filed Dec. 7, 1982 now aband.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3620873 |
Ehrreich et al. |
Nov 1971 |
|
4284679 |
Blad et al. |
Aug 1981 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
4851334 |
Jan 1975 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Kirk-Othmer, Encyclopedia of Chemical Technology, Third Edition, vol. 20, pp. 950 and 961, (1982). |
Continuations (1)
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Number |
Date |
Country |
Parent |
447588 |
Dec 1982 |
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