[특허]Large diameter thermoplastic seal

Large diameter thermoplastic seal 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/06 F16J-015/02 F16J-015/10 F16J-015/00 B29C-065/00 C09K-003/10
출원번호	US-0094285 (2013-12-02)
등록번호	US-9702462 (2017-07-11)
발명자 / 주소	Celik, Ceyhan Clark, Sarah L. Hildreth, Jr., Gary Charles Joshi, Helina Vaideeswaran, Karthik Valdenaire, Christophe Sousa, Jose R. Ghalambor, Hamid Reza
출원인 / 주소	SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
대리인 / 주소	Kim, Chi S.
인용정보	피인용 횟수 : 0 인용 특허 : 90

초록 ▼

A seal ring includes a weld and a thermoplastic material. The thermoplastic material has a weld elongation-at-break of at least 3%. The thermoplastic material can have a glass transition temperature of at least 100° C. The thermoplastic material with the weld can have a weld elongation-at-break of at least 3%. The seal ring can have a circumference of at least 0.62 meters. The seal ring can have a coefficient of friction of not greater than 0.45.

대표청구항 ▼

1. A seal ring comprising: a bent extruded rod having two ends and including two end portions formed of a first material and a center portion formed of a second material different than the first material, wherein the center portion makes up a majority of an overall circumferential length of the seal ring, wherein the center portion is disposed circumferentially between the two end portions such that the material composition of the seal ring changes along its circumference, wherein each end portion makes up a smaller portion of the overall circumferential length of the seal ring than the center portion, and wherein each of the end and center portions is defined by a complete circumferential segment of the bent extruded rod;wherein the first material is an unfilled polyketone material and the second material is a composite polyketone material comprising a polyketone matrix and a filler dispersed within the polyketone matrix; andwherein a weld joins the two end portions of the bent extruded rod to form a complete annular ring-shaped body of the seal ring, wherein only the unfilled polyketone material of each end portion is welded together, and wherein the weld is annealed and void free while still having an elongation-at-break of at least 20%. 2. The seal ring of claim 1, wherein the polyketone matrix is a polyether ether ketone (PEEK) matrix and the filler is a fluoropolymer filler. 3. The seal ring of claim 2, wherein the unfilled polymer is neat PEEK. 4. The seal ring of claim 1, wherein the seal ring has a circumference of at least 0.62 meters. 5. The seal ring of claim 1, wherein the seal ring has a diameter of at least 1.3 meters. 6. The seal ring of claim 5, wherein the diameter is at least 1.3 meters. 7. The seal ring of claim 1, wherein the weld is produced by a non-contact welding method. 8. The seal ring of claim 1, wherein the seal ring is annealed for at least six hours at a temperature of at least 1.7 times the glass transition temperature of the polyketone matrix. 9. The seal ring of claim 1, wherein the unfilled polyketone material has a melting point of at least 250° C. 10. The seal ring of claim 1, wherein the unfilled polyketone material has a glass transition temperature of at least 100° C. 11. The seal ring of claim 1, wherein the elongation-at-break of the annealed weld is at least 30%. 12. The seal ring of claim 11, wherein the elongation-at-break of the annealed weld is at least 33%. 13. A seal ring comprising: a bent extruded rod including a plurality of first segments formed of a first material and a plurality of second segments formed of a second material different than the first material, the bent extruded rod including a circumferential length extending from a first end to a second end around a circumference of the seal ring, the first end only including one of the first segments and the second end only including one of the first segments, the bent extruded rod alternating between the first segments and the second segments along the circumferential length of the bent extruded rod, the first and second segments each defined by different complete circumferential segments of the bent extruded rod, and all of the plurality of second segments together comprising more of the circumferential length of the bent extruded rod than all of the plurality of first segments together;wherein the first material is an unfilled polyketone material and the second material is a composite polyketone material comprising a polyketone matrix and a filler dispersed within the polyketone matrix;wherein a weld joins the first and second ends of the bent extruded rod to form a complete annular ring-shaped body of the seal ring, wherein only the unfilled polyketone material of each end is welded together, and wherein the weld is annealed and void free while still having an elongation-at-break of at least 20%. 14. The seal ring of claim 13, wherein the polyketone matrix is a polyether ether ketone (PEEK) matrix and the filler is a fluoropolymer filler. 15. The seal ring of claim 14, wherein the unfilled polymer is neat PEEK. 16. The seal ring of claim 13, wherein the second segments are spaced between the first segments. 17. The seal ring of claim 13, wherein the weld is produced by a non-contact welding method. 18. The seal ring of claim 13, wherein the seal ring is annealed for at least six hours at a temperature of at least 1.7 times the glass transition temperature of the polyketone matrix. 19. The seal ring of claim 13, wherein the elongation-at-break of the annealed weld is at least 30%. 20. The seal ring of claim 19, wherein the elongation-at-break of the annealed weld is at least 33%.

이 특허에 인용된 특허 (90)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Large diameter thermoplastic seal 원문보기

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연구과제 타임라인

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Large diameter thermoplastic seal 원문보기

초록 ▼

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연구과제 타임라인

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