Process for producing a cross-linked copolymer of tetrafluoroethylene and propylene using high energy ionizing radiation专利检索-电离辐射物理专利检索查询-专利查询网

Process for producing a cross-linked copolymer of tetrafluoroethylene and propylene using high energy ionizing radiation

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专利汇可以提供Process for producing a cross-linked copolymer of tetrafluoroethylene and propylene using high energy ionizing radiation专利检索，专利查询，专利分析的服务。并且A cross-linked copolymer of tetrafluoroethylene and propylene is produced by irradiating a copolymer of tetrafluoroethylene and propylene in the absence of monomers of tetrafluoroethylene, propylene, or other copolymerizable monomer, with high energy ionizing radiation.，下面是Process for producing a cross-linked copolymer of tetrafluoroethylene and propylene using high energy ionizing radiation专利的具体信息内容。

权利要求

2. The process of claim 1 in which said copolymer is irradiated in the absence of any monomer of tetrafluoroethylene, propylene, or other copolymerizable monomer.

3. The process of claim 1, in which a shaped copolymer of tetrafluoroethylene and propylene is exposed to the irradiation treatment.

4. The process of claim 1, wherein the total dose is from 105 -5 X 107 Rads.

5. The process of claim 1, wherein said copolymer is irradiated in vacuum.

6. A cross-linked copolymer of tetrafluoroethylene and propylene which is characterized by an ultimate elongation of greater than 200%, an ultimate tensile strength of greater than 80 kg/cm2, and a decomposition temperature of more than 300* C. which is produced by irradiating a copolymer of tetrafluoroethylene and propylene having an average molecular weight of more than 20,000 and an intrinsic viscosity in tetrahydrofuran at 30* C. of more than 0.25, wherein the mole ratio of tetrafluoroethylene to propylene is from 90/10 to 20/80, with high energy ionizing radiation at a total dose of 105 - 5 X 107 Rads, and a dose rate of 102 to 109 roentgens/hour.

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Process for producing a cross-linked copolymer of tetrafluoroethylene and propylene using high energy ionizing radiation

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