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US 4,643,924 AGranted
Protective article comprising an elastic gel
AssigneeRaychem Corporation
InventorsWilliam D. Uken, Robert S. Dubrow
Life of this patent
Estimating the term…
Abstract
An article for protecting a substrate includes a preshaped member having a shape similar to that of the substrate being protected, the article having a thin layer of gel disposed in intimate contact with an inner surface of the member such that the gel is disposed in intimate contact with the substrate when the member is disposed therearound. Preferably, the gel comprises an open looped three-dimensional network, the gel being relatively soft, elastic, and having an ultimate elongation in excess of 100%.
Claims50
An article for protecting a substrate, comprising:
- a first preshaped member having an internal surface shape shaped similr to an outer surface shape of at least part of the substrate to be protected, the member having an open side;
- and
- a thin layer of gel secured to the member for protecting the substrate when the member is disposed over the substrate, the gel being elastic and having a cone penetration between 150 and 350 (10.sup.-1 mm) and an ultimate elongation in excess of 100%, a volume of the gel being substantially less than a volume enclosed by the internal surface shape and the open side of the member, the gel being cured prior to coming into contact with any part of the substrate.
Dependencies are inferred from the claim text.