F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
18/108, 277/59,
F16J 15/48 (2006.01) F16J 15/32 (2006.01)
Patent
CA 1057329
A B S T R A C T The invention is concerned with a unitary seal compris- ing a support section formed of a high modulus, i.e. rigid high impact strength plastic and a sealing section formed of an elastomeric material, the support and sealing section being directly bonded together without the use of an adhesive there- between to form the unitary seal. Such a seal may take the form, for example, of a collar of the high modulus rigid plastic with an interior sealing lip of the elastomeric material within the collar and directly bonded thereto. In another sense the invention comprises a process for forming such a unitary seal. The process of the invention comprises contacting a surface portion of the support section directly with a surface portion of the sealing section, under sufficient pressure to assure a pressed contact therebetween, with the sections at a temperature of 50°C - 400°C for a time sufficient to cause bonding between the contacting surface portions to form the unitary seal.
265312
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