Claims
- 1. A process for producing a graft polymer consisting essentially of mixing two constitutive polymers to be grafted in the absence of any peroxide or cross-linkers in the temperature range of 130.degree.-300.degree. C. while applying shear deformation, wherein one constitutive polymer is an iodine-containing fluoro-rubber containing 0.001-10% by weight of iodine, the other constitutive polymer is selected from the group consisting of a styrene-butadiene copolymer rubber, a chlorosulfonated polyethylene rubber, acrylic rubbers, a silicone rubber and a polypropylene, the weight ratio of the iodine-containing fluoro-rubber and the other constitutive polymer is 70:30 to 5:95, the mixing is conducted by using a closed type kneader, and the mixing time is 2-60 minutes.
- 2. A process according to claim 1 wherein said other constitutive polymer is a styrene-butadiene copolymer rubber and said temperature range is 130.degree.-200.degree. C.
- 3. A process according to claim 1 wherein said other constitutive polymer is a silicone rubber and said temperature range is 200.degree.-300.degree. C.
- 4. A process according to claim 1, wherein the iodine-containing fluoro-rubber to be grafted is a polymer containing iodine at the end(s) of its molecular chain and/or in its molecular chain.
- 5. A process according to claim 1, wherein the mixing is conducted by using a Brabender mixer.
Priority Claims (3)
Number |
Date |
Country |
Kind |
3-019757 |
Feb 1991 |
JPX |
|
3-160474 |
Jul 1991 |
JPX |
|
3-300971 |
Nov 1991 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 07/834,623, filed Feb. 12, 1992, now U.S. Pat. No. 5,274,042.
US Referenced Citations (8)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0172645 |
Feb 1986 |
EPX |
0262808 |
Apr 1988 |
EPX |
1097997 |
Jan 1968 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
834623 |
Feb 1992 |
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