Preparation and application of degradable polyester composite material

By using a polyester base polymer composition formed in the underground tool components, the problem of the polymer composition in the existing technology in the existing technologies is not controlled by the decline in high temperature and humidity conditions. While maintaining mechanical properties, improve the degradation rate and meet the requirements of degradability.

CN119365513APending Publication Date: 2025-01-24CHINA NAT PETROLEUM CORP +2
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Patent Information

Application Number
CN202280070559.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-06-12
Filing Date
2022-11-11
Publication Date
2025-01-24

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Abstract

The polyester-based polymer composition includes a polyester, a metal oxide, and a metal hydroxide. The polymer composite material containing the metal oxide and the metal hydroxide, which is prepared by melt blending, has good mechanical properties, and has higher degradability after required time under the conditions of higher underground temperature and humidity. The reinforced polymer composite material prepared from the glass fibers, the metal oxides and the metal hydroxides through melt blending has higher mechanical properties, and has higher degradability after required time under the condition of higher underground temperature and humidity. The polymer composite material prepared by melt blending has required mechanical properties and degradability, so that the polymer composite material can be used for manufacturing degradable or dissolvable parts of downhole tools.
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Citation Information

Patent Citations

  • Degradable composite materials and uses

    US20140360728A1

  • Degradable composite structures

    US20170369708A1

  • Fiber reinforced polymer composition

    US20200032010A1

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    US20210054155A1