Patent application number | Description | Published |
20090162591 | Multilayer coolant pipes - The present invention relates to the field of multilayer pipes used to convey liquid media for automotive applications. Disclosed pipes show a balance of properties, in terms of ageing in presence of coolant liquid, burst pressure resistance, permeation rate and coolant liquid absorption compared to conventional pipes. | 06-25-2009 |
20090314015 | METHOD FOR CIRCULATING SELECTED HEAT TRANSFER FLUIDS THROUGH A CLOSED LOOP CYCLE - The present invention relates to the use of flexible hoses capable of handling high pressure fluids and providing a barrier against permeation loss in air conditioning and refrigeration systems. Such hoses are particularly suitable in air conditioning and refrigeration in which new, low global warming potential refrigerant alternatives are used. | 12-24-2009 |
20100233402 | SALT RESISTANT POLYAMIDE COMPOSITIONS - Polyamides made from 1,6-hexanediamine, and the dicarboxylic acids 1,10-decandioic acid and/or 1,12-dodecanedioic acid, and terephthalic acid in specified proportions are particularly resistant to salt stressed (induced) corrosion cracking. This makes them particularly useful as vehicular parts which may be exposed to salts. Particularly when these polyamides contain tougheners and/or plasticizers they are especially useful for hoses and tubes. | 09-16-2010 |
20110052848 | SALT RESISTANT POLYAMIDE COMPOSITIONS - Polyamides made from 1,6-hexanediamine, and the dicarboxylic acids 1,10-decandioic acid, 1,12-dodecanedioic acid, or 1,14-tetradecanedioic acid and terephthalic acid in specified proportions are particularly resistant to salt stressed (induced) corrosion cracking. This makes them particularly useful as vehicular parts which may be exposed to salts. Particularly when these polyamides contain tougheners and/or plasticizers they are especially useful for hoses and tubes. | 03-03-2011 |
20110139258 | MULTILAYER STRUCTURES COMPRISING A BARRIER LAYER AND THEIR USE TO CONVEY FLUIDS - The present invention relates to the field of multilayer structures that are particularly suitable for conveying fuels. The multilayer structure comprises a) a polyamide layer made of a polyamide composition comprising one or more semi-aromatic copolyamides and b) a barrier layer made of ethylene vinyl alcohol copolymers (EVOH), wherein the polyamide layer is directly adhered to the barrier layer. | 06-16-2011 |
20110144256 | SALT RESISTANT POLYAMIDES - Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula | 06-16-2011 |
20110155359 | HOLLOW STRUCTURES AND ASSOCIATED METHOD FOR CONVEYING REFRIGERANT FLUIDS - The present invention relates to the field of flexible hollow structure suitable to convey a refrigerant fluid and methods for their use. Disclosed hollow structures comprising a layer made of a resin composition comprising one or more semi-aromatic polyamides and one or more functionalized polyolefins show a balance of properties in terms of flexibility, permeation barrier against a refrigerant fluid and retention of properties upon heat and refrigerant fluid exposure. | 06-30-2011 |
20110174433 | High Pressure Barrier Hose And Method Of Manufacture - Novel flexible hoses are disclosed that are capable of handling high pressure fluids and providing high barrier against permeation loss. The hoses comprise (from innermost to outermost layer) a thermoplastic veneer; a tie layer; a metal-polymer laminate; a braid under-layer of a thermoplastic or thermosetting elastomer; a reinforcing braid layer; and an outer layer of an elastomeric material. The hoses are suitable for use in air conditioning, refrigeration, fuel handling, hydraulic and similar systems requiring the transport of high pressure fluids. | 07-21-2011 |
20110190433 | POLYAMIDE COMPOSITIONS WITH IMPROVED SALT RESISTANCE AND HEAT STABILITY - Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula | 08-04-2011 |
20120029134 | POLYAMIDE COMPOSITIONS WITH IMPROVED SALT RESISTANCE AND HEAT STABILITY - Disclosed is a polyamide composition including at least one semi-aromatic copolyamide, said semi-aromatic copolyamide consisting essentially of about 25 to about 55 mole percent repeat units of the formula | 02-02-2012 |
20120196973 | MELT-BLENDED THERMOPLASTIC COMPOSITION - Disclosed is a melt-blended thermoplastic composition including: A) a polyamide composition including a) 55 to 90 weight percent semi-crystalline semi-aromatic copolyamide; wherein the semi-aromatic copolyamide has a DMA tan delta peak value of greater than or equal to 0.23; and heat of fusion of at least 20 J/g and b) 10 to 45 weight percent aliphatic homopolyamide; wherein the aliphatic homopolyamide has a DMA tan delta peak value of less than or equal to 0.21; and heat of fusion of at least 30 J/g; B) 0 to 45 weight percent polymeric toughener; C) 0 to 20 weight percent plasticizer; and D) 0 to 45 weight percent reinforcing agent; wherein said melt-blend composition has a glass transition and has a tan delta peak (E″/E′) value of 0.21 or lower at said glass transition. Further disclosed herein is a method for providing the melt-blended thermoplastic composition. | 08-02-2012 |
20120247602 | THERMOPLASTIC MULTILAYER TUBES AND PROCESS FOR MANUFACTURING - Disclosed is a multi-layer tube including:
| 10-04-2012 |
20120279605 | POLYAMIDE COMPOSITIONS FOR THE INNER LAYER OF A MULTI-LAYER TUBULAR ARTICLE AND ARTICLES INCORPORATING SAME - Polyamide compositions suitable for the inner layer of multi-layer tubular articles for circulating a heat transfer fluid composition within a refrigeration or air conditioning system are provided and including articles prepared from these compositions. Such compositions are particularly suitable in air conditioning and refrigeration applications and systems in which new, low global warming potential refrigerant alternatives are used. | 11-08-2012 |
20130115401 | HYDROLYTIC RESISTANT POLYAMIDE COMPOSITIONS COMPRISING POLYHYDROXY POLYMERS - The present invention relates to the thermoplastic compositions having improved high temperature hydrolytic stability. The addition of polyhydroxy polymers to specific polyamides or polyamide blends increases the elongation at break of these thermoplastic compositions after exposure to high temperature aqueous ethylene glycol solutions. The thermoplastic compositions are useful in the preparation of hoses and pipes for transport of aqueous high temperature fluids. | 05-09-2013 |
20140017432 | MULTILAYER STRUCTURES COMPRISING A BARRIER LAYER AND THEIR USE TO CONVEY FLUIDS - The present invention relates to the field of multilayer structures that are particularly suitable for conveying fuels. The multilayer structure comprises a) a polyamide layer made of a polyamide composition comprising one or more semi-aromatic copolyamides and b) a barrier layer made of ethylene vinyl alcohol copolymers (EVOH), wherein the polyamide layer is directly adhered to the barrier layer. | 01-16-2014 |
20140065338 | MONOLAYER TUBES COMPRISING THERMOPLASTIC POLYAMIDE - Disclosed is a monolayer tube comprising a melt-blended thermoplastic composition consisting essentially of (A) a polyamide resin selected from the group consisting of PA 614, PA 616, PA 618 and blends of these; and optionally: (B) one or more polymeric toughener(s); (C) one or more plasticizer(s); and (D) one or more functional additive(s); wherein the weight percent of (A), (B), (C), and (D) are based on the total weight of the melt-blended thermoplastic composition. | 03-06-2014 |
20140170354 | TRANSPARENT THERMOPLASTIC CONTAINER - Disclosed is a transparent thermoplastic container including a thermoplastic composition including: A) a polyamide resin including
| 06-19-2014 |
20140170355 | TRANSPARENT THERMOPLASTIC POLYAMIDE CONTAINER - Disclosed is a transparent thermoplastic container including a thermoplastic composition including: A) a polyamide resin including
| 06-19-2014 |