×

Sealant composition and sealed electrical connectors

  • US 5,691,399 A
  • Filed: 05/31/1995
  • Issued: 11/25/1997
  • Est. Priority Date: 08/23/1991
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for preparing a sealant composition comprising the steps of:

  • (a) heating a composition including an elastomeric thermoplastic polymer and an extender to the gelation initiation temperature of the composition, said elastomeric thermoplastic organic polymer being elastomeric at ambient temperatures and flowable yet thermally stable at elevated temperatures in its neat uncompounded state, said elastomeric thermoplastic organic polymer comprising at least one elastomeric block and one non-elastomeric block; and

    (b) substantially subsequent to said heating step, adding to said composition precursors for a crosslinkable polymer, the crosslinkable polymer having inorganic elements making up at least a portion of the backbone of the polymer chain and reacting said precursors under conditions of time and temperature sufficient to cause chemical crosslinking of said precursors.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×