Article comprising thermoplastic polyurethane and polyamide 6/66 copolymer
US-9206315-B2 · Dec 8, 2015 · US
Composite tubing and method for making and using same
US11149880B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11149880-B2 |
| Application number | US-201514973191-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 17, 2015 |
| Priority date | Dec 17, 2014 |
| Publication date | Oct 19, 2021 |
| Grant date | Oct 19, 2021 |
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- Title
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Abstract
Official abstract text for this publication.
A composite tube includes a first layer including a thermoplastic polymer having a Tg of not greater than about 160° C. and a second layer adjacent to the first layer, the second layer including an extruded silicone material. Further included is a method of forming the composite tube which includes providing a first layer including a thermoplastic polymer having a Tg of not greater than about 160° C.; receiving, by an extrusion system, a silicone material; forming, by the extrusion system, a second layer including the silicone material adjacent to the first layer; and irradiating the silicone material with a radiation source to substantially cure the silicone material.
First claim
Opening claim text (preview).
What is claimed is: 1. A composite peristaltic pump tube consisting of: a first layer having an inner surface that defines a central lumen of the tube, the first layer comprising a thermoplastic polymer having a Tg of not greater than about 160° C., wherein the thermoplastic polymer is a copolyester, a polyether-ester copolymer, a thermoplastic urethane, a polyether amide block copolymer, or combination thereof; and a second layer having a length equivalent to a length of the first layer, the second layer directly bonded to the first layer, the second layer comprising an extruded silicone material, wherein the bond between the first layer and the second layer has an adhesive strength of cohesive failure along an entire length of the tube; wherein the composite peristaltic pump tube has a pump life of greater than about 48 hours, as measured by peristaltic pumping at 400 rpm. 2. The composite peristaltic pump tube of claim 1 , wherein the thermoplastic polymer has a Tg of not greater than about 100° C. 3. The composite peristaltic pump tube of claim 1 , wherein the thermoplastic polymer is a copolyester, a polyether-ester copolymer, a thermoplastic urethane, or combination thereof. 4. The composite peristaltic pump tube of claim 1 , wherein the silicone material comprises a liquid silicone rubber or a high consistency rubber. 5. The composite peristaltic pump tube of claim 1 , wherein the silicone material consists essentially of a liquid silicone rubber having a viscosity of about 50,000 centipoise to about 2,000,000 centipoise. 6. The composite peristaltic pump tube of claim 1 , wherein the first layer is in direct contact with the second layer. 7. The composite peristaltic pump tube of claim 1 , wherein the composite tube has a length of at least about 2 meters. 8. The composite peristaltic pump tube of claim 1 , wherein the extruded silicone material is cured via a radiation source. 9. An apparatus, comprising: a composite peristaltic pump tube consisting of a first layer having an inner surface that defines a central lumen of the tube, the first layer comprising a thermoplastic polymer having a Tg of not greater than about 160° C., wherein the thermoplastic polymer is a copolyester, a polyether-ester copolymer, a thermoplastic urethane, a polyether amide block copolymer, or combination thereof; and a second layer having a length equivalent to a length of the first layer, the second layer directly bonded to the first layer, the second layer comprising an extruded silicone material, wherein the bond between the first layer and the second layer has an adhesive strength of cohesive failure; wherein the composite peristaltic pump tube has a pump life of greater than about 48 hours, as measured by peristaltic pumping at 400 rpm; and a pump coupled to the tube to dispense fluid contained in the tube.
Assignees
Inventors
Classifications
- F04B43/0072Primary
of tubular flexible members · CPC title
Thermoplastic materials · CPC title
Tubular articles (B29L2024/00 takes precedence {; catheters B29L2031/7542}) · CPC title
using UV radiation · CPC title
having peristaltic action · CPC title
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Frequently asked questions
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- What does patent US11149880B2 cover?
- A composite tube includes a first layer including a thermoplastic polymer having a Tg of not greater than about 160° C. and a second layer adjacent to the first layer, the second layer including an extruded silicone material. Further included is a method of forming the composite tube which includes providing a first layer including a thermoplastic polymer having a Tg of not greater than about 1…
- Who is the assignee on this patent?
- Saint Gobain Performance Plastics Corp
- What technology area does this patent fall under?
- Primary CPC classification F04B43/0072. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 19 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).