[특허]In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

Endress + Hauser Flowtec AG

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B05D-007/22 G01F-001/58
미국특허분류(USC)	427/236; 427/239
출원번호	US-0385171 (2009-04-01)
등록번호	US-8865257 (2014-10-21)
우선권정보	DE-10 2006 026 310 (2006-06-02); DE-10 2006 026 311 (2006-06-02)
발명자 / 주소	Sulzer, Thomas Ruchel, Johannes Stuenzi, Alexander
출원인 / 주소	Endress + Hauser Flowtec AG
대리인 / 주소	Bacon & Thomas, PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 15

초록

The measuring tube of an in-line measuring device is formed by means of a support tube and a liner internally lining the support tube. The liner adheres to the support tube, with interposition of a mediating primer. Both the primer and the liner are composed, at least in part, of polyurethane. Especially, both the polyurethane of the liner and also the polyurethane of the primer are suitable for drinking water applications, so that the in-line measuring device itself is also suited for measuring drinking water.

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1. A method for manufacturing a measuring tube of an in-line measuring device, wherein the measuring tube includes a support tube, and a liner internally lining the support tube, said method comprising: forming a flowable first multicomponent system, which contains isocyanate, a di-, or more-, valent alcohol and a catalyst;applying the first multicomponent system onto an inner wall of the support tube, serving as a component of the measuring tube;allowing at least parts of the first multicomponent system to cure on the inner wall of the support tube for forming a primer adhering to the support tube;forming a flowable, second multicomponent system, which contains isocyanate, a di-, or more-, valent alcohol, and a catalyst;applying the second multicomponent system onto the primer formed on the inner wall of the support tube; andallowing the second multicomponent system to cure in the support tube for forming the liner, wherein:both the catalyst of the first multicomponent system and the catalyst of the second multicomponent system contain metal-organic compounds. 2. The method as claimed in claim 1, wherein: the catalyst of the second multicomponent system comprises a di-n-octyl tin dilaurate and/or a di-n-octyl tin dimalinate. 3. The method as claimed in claim 1, wherein: the first multicomponent system contains diisocyanate; and/orthe second multicomponent system contains diisocyanate. 4. The method as claimed in claim 1, wherein: the prepolymer of the first multicomponent system contains at least two reactive NCO groups; and/orthe prepolymer of the second multicomponent system contains at least two reactive NCO groups; and/orthe prepolymer of the first multicomponent system contains aromatic and/or aliphatic, isocyanate groups; and/orthe prepolymer of the second multicomponent system contains aromatic and/or aliphatic, isocyanate groups; and/orthe first second multicomponent system contains monomeric and/or prepolymeric and/or polymeric isocyanate; and/orthe second multicomponent system contains monomeric and/or prepolymeric and/or polymeric isocyanate; and/orthe first multicomponent system is formed using a prepolymer based on diisocyanate; and/orthe second multicomponent system is formed using a prepolymer based on diisocyanate. 5. The method as claimed in claim 1, wherein: prepolymer of the first multicomponent system is based on at least on of diphenylmethane diisocyanate (MDI), hexane diisocyanate (HDI), toluene diisocyanate (TDI) and isophorone diisocyanate (IPDI); and/orprepolymer of the second multicomponent system is based on at least on of diphenylmethane diisocyanate (MDI), hexane diisocyanate (HDI), toluene diisocyanate (TDI) and isophorone diisocyanate (IPDI). 6. The method as claimed in claim 1, wherein: the catalyst of the second multicomponent system contains metal-organic compounds formed of a physiologically safe metal. 7. The method as claimed in claim 1, wherein: the catalyst of the second multicomponent system contains metal-organic compounds selected from a group consisting of organotin compounds. 8. The method as claimed in claim 1, wherein: the first multicomponent system contains ether groups; and/orthe second multicomponent system contains ether groups; and/orthe first multicomponent system contains ester groups; and/orthe second multicomponent system contains ester groups; and/orthe alcohol of the first multicomponent system comprises a diol; and/orthe alcohol of the second multicomponent system comprises a diol; and/orthe alcohol of the first multicomponent system comprises a prepolymer based on castor oil; and/orthe alcohol of the second multicomponent system comprises a prepolymer based on castor oil; and/oralso the first multicomponent system also contains a catalyst. 9. The method as claimed in claim 8, wherein: the first multicomponent system contains aliphatic ether groups; and/orthe second multicomponent system contains aliphatic ether groups; and/orthe first multicomponent system contains aromatic ether groups; and/orthe second multicomponent system contains aromatic ether groups; and/orthe first multicomponent system contains aliphatic ester groups; and/orthe second multicomponent system contains aliphatic ester groups; and/orthe first multicomponent system contains aromatic ester groups; and/orthe second multicomponent system contains aromatic ester groups; and/orthe alcohol of the first multicomponent system comprises a butanediol; and/orthe alcohol of the second multicomponent system comprises a butanediol. 10. The method as claimed in claim 1, wherein: the catalyst of the first multicomponent system contains metal-organic compounds formed of a physiologically safe metal; and/orwherein: the catalyst of the first multicomponent system contains organotin compounds. 11. The method as claimed in claim 10, wherein: the catalyst of the first multicomponent system contains di-n-octyl tin compounds. 12. The method as claimed in claim 1, further comprising: performing at a working temperature of less than 100° C. each of the following:forming the flowable first multicomponent system;applying the first multicomponent system onto an inner wall of the support tube;allowing at least parts of the first multicomponent system to cure on the inner wall of the support tube;forming the flowable for forming a primer adhering to the support tube, second multicomponent system; andapplying the second multicomponent system onto the primer formed on the inner wall of the support tube and allowing the second multicomponent system to cure in the support tube for forming the liner. 13. The method as claimed in claim 12, further comprising: performing at a working temperature at about 25° C. each of the following:forming the flowable first multicomponent system;applying the first multicomponent system onto an inner wall of the support tube;allowing at least parts of the first multicomponent system to cure on the inner wall of the support tube;forming the flowable for forming a primer adhering to the support tube, second multicomponent system; andapplying the second multicomponent system onto the primer formed on the inner wall of the support tube and allowing the second multicomponent system to cure in the support tube for forming the liner. 14. The method as claimed in claim 1, wherein the support tube is a metal tube. 15. The method as claimed in claim 1, wherein first multicomponent system is sprayable and/or brushable.

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특허 상세정보

In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

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In-line measuring device with measuring tube lined internally with polyurethane and method for manufacture thereof

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이 특허에 인용된 특허 (15)

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