Conveyor lubricant, passivation of a thermoplastic container to stress cracking and thermoplastic stress crack inhibitor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10M-173/00
C10M-139/00
C10M-141/12
B65D-023/08
출원번호
US-0840365
(2001-04-23)
발명자
/ 주소
Person Hei, Kimberly L.
Herdt, Joy G.
Li, Minyu
Lokkesmoe, Keith Darrell
Wei, Guang-Jong Jason
Besse, Michael E.
출원인 / 주소
Ecolab Inc.
대리인 / 주소
Merchant & Gould P.C.
인용정보
피인용 횟수 :
37인용 특허 :
59
초록▼
Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the
Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the stress cracking promoting materials from interacting with the polymeric structure of the stressed container to prevent or inhibit stress cracking in such materials. The methods and compositions of the invention are particularly useful in preventing stress cracking in polyethylene terephthalate beverage containers during bottling operations during which the bottle is contacted with aqueous and non-aqueous materials such as cleaners and lubricants that can interact with the polyester to cause stress cracking particularly in the container base. A process for lubricating a container, such as a beverage container, or a conveyor for containers, by applying to the container or conveyor, a thin continuous, substantially non-dripping layer of a liquid lubricant. The process provides many advantages compared to the use of a conventional dilute aqueous lubricant.
대표청구항▼
Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the
Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the stress cracking promoting materials from interacting with the polymeric structure of the stressed container to prevent or inhibit stress cracking in such materials. The methods and compositions of the invention are particularly useful in preventing stress cracking in polyethylene terephthalate beverage containers during bottling operations during which the bottle is contacted with aqueous and non-aqueous materials such as cleaners and lubricants that can interact with the polyester to cause stress cracking particularly in the container base. A process for lubricating a container, such as a beverage container, or a conveyor for containers, by applying to the container or conveyor, a thin continuous, substantially non-dripping layer of a liquid lubricant. The process provides many advantages compared to the use of a conventional dilute aqueous lubricant. ; 0730876, EP; 2701211, FR; WO85/005275, WO; WO87/002895, WO; WO88/008725, WO; WO91/010460, WO; WO92/018179, WO; WO93/016740, WO; WO94/001812, WO; WO96/007443, WO; WO97/017096, WO; WO98/001172, WO t one fenestration; and (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, at least one of the flow control members is positioned within the patient's heart and at least one subcirculation region within the patient is isolated, wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft at desired locations to isolate circulation to the thorax and spinal column. 8. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration: and (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, at least one of the flow control members is positioned within the patient's heart and at least one subcirculation region within the patient is isolated, wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft at desired locations to isolate drainage of the azygous veins. 9. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestrations (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, at least one of the flow control members is positioned within the patient's heart and at least one subcirculation region within the patient is isolated; and c) means for perfusing the pulmonary artery. 10. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration; (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, at least one of the flow control members is positioned within the patient's heart and at least one subcirculation region within the patient is isolated; and (c) means for perfusing the pulmonary artery and means for draining one or more chambers of the heart. 11. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration; and (b) a succession of flow control members positioned along the catheter shaft such that after the cath eter has been positioned in the patient's body, one or more of the flow control members are positioned within the patient's heart, and wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft at desired locations to isolate subcirculation regions within the patient, wherein such subcirculation region is selected from the group consisting of the coronary arterial, cerebral, pulmonary, neck and limb, spinal and thoracic subcirculations. 12. The catheter of claim 11, wherein the elongated catheter shaft is configured to be advanceable from a peripheral vessel to and through two or more chambers of the heart including across a septum between chambers. 13. The catheter of claim 11, further comprising a first inner channel extending therein from a port in the distal end of the shaft to a location in the proximal end. 14. The catheter of claim 11, wherein the catheter further comprises means for draining,at least one chamber of the heart. 15. The catheter of claim 11, wherein the succession of flow control members includes one or more flow control members comprising an inflatable balloon. 16. The catheter of claim 15, wherein the one or more inflatable balloons are independently inflatable. 17. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration; (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, one or more of the flow control members are positioned within the patient's heart, and wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft at desired locations to isolate subcirculation regions within the patient, wherein the succession of flow control members comprises a first expandable member located at the proximal end of the catheter shaft at the site of entry of the shaft into the patient; and (c) a first inner channel extending therein from a port in the distal end of the shaft to a location in the proximal end. 18. The catheter of claim 17, wherein the succession of flow control members comprises a second flow control member located distal to the first flow control member, and which is dimensioned and configured so that it seats in the proximal descending thoracic aorta. 19. The catheter of claim 18, wherein the succession of flow control members comprises a third flow control member, distal to the second flow control member, which is dimensioned and configured so that is seats between the coronary ostia and the brachiocephalic artery. 20. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration; and (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, one or more of the flow control members are positioned within the patient's heart, and wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft a t desired locations to isolate subcirculation regions within the patient, wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft at desired locations to isolate circulation to the thorax and spinal column. 21. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration; (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, one or more of the flow control members are positioned within the patient's heart, and wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft at desired locations to isolate subcirculation regions within the patient; and (c) means for perfusing the pulmonary artery. 22. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) an elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration; (b) a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, one or more of the flow control members are positioned within the patient's heart, and wherein the succession of flow control members comprises at least two flow control members which are positioned along the catheter shaft at desired locations to isolate subcirculation regions within the patient; (c) means for perfusing the pulmonary arterial; and (d) means for draining at least one chamber of the heart. 23. A biventricular vascular catheter for providing access to a patient's heart for cardiopulmonary surgery, for cardiopulmonary circulatory support, and for circulatory arrest of the heart comprising: (a) a first elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration, and a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, one or more of the flow control members are positioned within the patient's heart and at least one subcirculation region within the patient is isolated, wherein such subcirculation region is selected from the group consisting of the coronary arterial, cerebral, pulmonary, neck and limb, spinal and thoracic subcirculations; and (b) a second elongated catheter shaft configured to be advanceable from a peripheral vessel to and through at least two chambers of the heart, having a proximal end adapted to extend out of the patient and a distal end adapted to move through the chambers of the heart, said distal end having at least one fenestration, and a succession of flow control members positioned along the catheter shaft such that after the catheter has been positioned in the patient's body, one or more of the flow control members are positioned within the patient's heart and at least one subcirculation region within th
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