Filter cartridge with strap and method

A filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge, said filter cartridge periodically subject to cleaning fluid moving in an opposite direction to said fluid stream, said filter cartridge comprising:

• filtration media formed into a tubular configuration;
• a plurality of circumferentially spaced apart pleats in said filtration media;
• and a retention device, which includes thermoplastic, polyester, elastomeric material, to limit radial movement of said filtration media in an opposite direction when subjected to said periodical cleaning fluid and to maintain said pleats in said filtration media circumferentially spaced apart, wherein said retention device, which includes from about 80 volume % to about 95 volume % of said thermoplastic, polyester, elastomeric material and includes at least one additive, wherein said retention device has a measured hardness in a range from about 40 Shore D to about 82 Shore D, a measured flexural modulus at −40° Celsius in a range from about 155 MPa. to about 3,030 MPa., a measured flexural modulus at 23° Celsius in a range from about 62 MPa. to about 1,210 MPa., a measured flexural modulus at 100° Celsius in a range from about 27 MPa. to about 255 MPa., a tensile strength at breaking in a range from about 28 MPa. to about 48.3 MPa., an elongation at breaking in a range from about 350% to about 550%, a tensile strength at 5% strain in a range from about 2.4 MPa. to about 27.6 MPa., a tensile strength at 10% strain in a range from about 3.6 MPa. to about 30.3 MPa., a resistance to flex cut growth in a range from about 3×104 cycles to 5×(times) cut growth to greater than 1×106 cycles to 5×(times) cut growth, an initial tear resistance in a range from about 100 kN./m. to about 260 kN./m, has a melt flow rate in a range from about 4. g./10 minutes to about 15. g./10 minutes and a melting point in a range from about 150° Celsius to about 225° Celsius and a vicat softening point from about 108° Celsius to about 220° C., a deflection temperature under flexural load values of 0.5 MPa. in a range from about 50° Celsius to about 150° Celsius and has a deflection temperature under flexural load values of 1.8 MPa. in a range from about 40° Celsius to about 60° Celsius, a specific gravity a range from about 1.1 to about 1.3, absorbs water at a 1 kilogram load in a range from about 0.25% to about 0.75%, and has taber abrasion with a CS-17 wheel in a range from about 3 mg./1,000 revolutions to about 15 mg./1,000 revolutions and has taber abrasion with a H-18 wheel in a range from about 20 mg./1,000 revolutions to about 100 mg./1,000 revolutions.

A method of making a filter cartridge for removing particulates from a fluid stream moving one direction through said filter cartridge and that is periodically subject to cleaning fluid moving in an opposite direction through said filter cartridge, said method comprising the steps of:

• providing filtration media formed into a substantially tubular configuration and having a plurality of circumferentially spaced apart pleats formed therein;
• and applying a retention device, which includes thermoplastic, polyester, elastomeric material to limit radial movement of said filtration media in the opposite direction when subjected to the periodical cleaning fluid and to maintain pleats in the filtration media circumferentially spaced apart, wherein said retention device includes from about 80 volume % to about 95 volume % of said thermoplastic, polyester, elastomeric material and includes at least one additive, wherein said retention device has a measured hardness in a range from about 40 Shore D to about 82 Shore D, a measured flexural modulus at −40° Celsius in a range from about 155 MPa. to about 3,030 MPa., a measured flexural modulus at 23° Celsius in a range from about 62 MPa. to about 1,210 MPa., a measured flexural modulus at 100° Celsius in a range from about 27 MPa. to about 255 MPa., a tensile strength at breaking in a range from about 28 MPa. to about 48.3 MPa., an elongation at breaking in a range from about 350% to about 550%, a tensile strength at 5% strain in a range from about 2.4 MPa. to about 27.6 MPa., a tensile strength at 10% strain in a range from about 3.6 MPa. to about 30.3 MPa., a resistance to flex cut growth in a range from about 3×104 cycles to 5×(times) cut growth to greater than 1×106 cycles to 5×(times) cut growth, an initial tear resistance in a range from about 100 kN./m. to about 260 kN./m, has a melt flow rate in a range from about 4. g./10 minutes to about 15. g./10 minutes and a melting point in a range from about 150° Celsius to about 225° Celsius and a vicat softening point from about 108° Celsius to about 220° C., a deflection temperature under flexural load values of 0.5 MPa. in a range from about 50° Celsius to about 150° Celsius and has a deflection temperature under flexural load values of 1.8 MPa. in a range from about 40° Celsius to about 60° Celsius, a specific gravity a range from about 1.1 to about 1.3, absorbs water at a 1 kilogram load in a range from about 0.25% to about 0.75%, and has taber abrasion with a CS-17 wheel in a range from about 3 mg./1,000 revolutions to about 15 mg./1,000 revolutions and has taber abrasion with a H-18 wheel in a range from about 20 mg./1,000 revolutions to about 100 mg./1,000 revolutions.