CROSSLINKED FLUOROELASTOMER AND COMPOSITION CONTAINING SAME

• US 3,851,018 A
• Filed: 07/31/1973
• Issued: 11/26/1974
• Est. Priority Date: 07/31/1973
• Status: Expired due to Term

• Current Assignee: Kelly T
• Original Assignee: Kelly T
• Inventors: KELLY T
• Application Number:
  US05/384,375
• Time in Patent Office: 483 Days
• US Class Current: 525/200
• CPC Class Codes: C08F 214/222 with fluorinated vinyl ethers
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 27/12 containing fluorine atoms
• CPC Class Codes: C08L 27/16 Homopolymers or copolymers or vinylidene fluoride

Abstract

1. A CROSSLINKED FLUOROELASTOMER WHICH IS A COPOLYMER CONTAINING INTERPOLYMERIZED UNITS IN AN AMOUNT EQUAL TO (A) ABOUT 2-10 MOLE PERCENT OF A PERFLUORODIVINYL ETHER OF THE FORMULA CF2=CF-O(CF2)N-O-CF=CF2 WHEREIN N IS A WHOLE NUMBER OF 2-24, (B) ABOUT 50-85 MOLE PERCENT OF VINYLIDENE FLUORIDE, (C) ABOUT 5-48 MOLE PERCENT OF HEXAFLUOROPROPYLENNE OR PENTAFLUOROPROPYLENE AND (D) FROM 0 TO ABOUT 40 MOLE PERCENT OF TETRAFLUOROETHYLENE OR A PERFLUOROALKYL PERFLUOROVANYL ETHER, SAID FLUOROELASTOMER HAVING AN INSOLUBILITY VALUE OF ABOUT 30-100%.

Claims

1. A CROSSLINKED FLUOROELASTOMER WHICH IS A COPOLYMER CONTAINING INTERPOLYMERIZED UNITS IN AN AMOUNT EQUAL TO (A) ABOUT 2-10 MOLE PERCENT OF A PERFLUORODIVINYL ETHER OF THE FORMULA CF2=CF-O(CF2)N-O-CF=CF2 WHEREIN N IS A WHOLE NUMBER OF 2-24, (B) ABOUT 50-85 MOLE PERCENT OF VINYLIDENE FLUORIDE, (C) ABOUT 5-48 MOLE PERCENT OF HEXAFLUOROPROPYLENNE OR PENTAFLUOROPROPYLENE AND (D) FROM 0 TO ABOUT 40 MOLE PERCENT OF TETRAFLUOROETHYLENE OR A PERFLUOROALKYL PERFLUOROVANYL ETHER, SAID FLUOROELASTOMER HAVING AN INSOLUBILITY VALUE OF ABOUT 30-100%.