PNEUMATIC RUBBER TIRE HAVING ANNULAR RUBBER STRIP CONTAINING ELECTRICALLY CONDUCTIVE BONDED TO ITS INNER SURFACE
First Claim
1. A cured pneumatic rubber tire of an open toroidal shape with an inner rubber surface substantially co-existent with its open toroidal cavity, wherein a portion of said tire inner rubber surface contains a pre-cured rubber strip adhesively bonded thereto by an adhesive layer positioned between said pre-cured rubber strip and said tire inner rubber surface, wherein said pre-cured rubber strip contains at least one electrically conductive element, wherein said adhesive layer is comprised of a RTV composition comprised of an hydroxyl terminated polysiloxane crosslinked with a crosslinking agent which contains a silane group capable of crosslinking a silanol terminated organopolysiloxane comprised of a substituted silane group with a substituent comprised of at least one of oxime, acetoxy, methoxy, ethoxy, amine, oximino and enoxy groups and their mixtures.
1 Assignment
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Accused Products
Abstract
A pre-cured pneumatic rubber tire of open toroidal shape having a pre-cured rubber strip, comprised of at least one elastomer and which contains at least one electrically conductive element, adhesively bonded to an inner surface of the tire'"'"'s cavity. The adhesive is an RTV polysiloxane comprised of an hydroxyl terminated (silanol terminated) polysiloxane and crosslinking agent. The adhesive is applied as a layer, or coating, thereof onto a surface of said pre-cured rubber strip, and/or onto a corresponding pre-cured inner surface of said pre-cured tire, and the resulting coated pre-cured rubber strip and inner surface of said pre-cured tire brought together with said layer of adhesive therebetween and the adhesive allowed to cure and thereby bond said strip to said tire inner surface. In one aspect of the invention, said strip is an annular pre-cured rubber strip bonded to the tire'"'"'s inner surface in its crown region or to said tire inner surface circumferential with and close to the periphery of the tire'"'"'s open cavity. In another aspect of the invention, said tire inner surface is of a textured configuration and optionally contains a thin coating thereon of a polysiloxane material. In a further aspect of the invention, said pre-cured rubber strip contains a transducer and/or microprocessor inductively and/or electrically connected to said electrically conductive element(s), for example a wire antenna, contained in said rubber strip.
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Citations
21 Claims
- 1. A cured pneumatic rubber tire of an open toroidal shape with an inner rubber surface substantially co-existent with its open toroidal cavity, wherein a portion of said tire inner rubber surface contains a pre-cured rubber strip adhesively bonded thereto by an adhesive layer positioned between said pre-cured rubber strip and said tire inner rubber surface, wherein said pre-cured rubber strip contains at least one electrically conductive element, wherein said adhesive layer is comprised of a RTV composition comprised of an hydroxyl terminated polysiloxane crosslinked with a crosslinking agent which contains a silane group capable of crosslinking a silanol terminated organopolysiloxane comprised of a substituted silane group with a substituent comprised of at least one of oxime, acetoxy, methoxy, ethoxy, amine, oximino and enoxy groups and their mixtures.
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6. A pneumatic tire prepared by a method which comprises;
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(A) providing a sulfur cured pneumatic tire of an open toroidal shape with an inner cured rubber surface substantially co-existent with its open toroidal cavity;
(B) providing a cured rubber strip of a rubber composition comprised of at least one elastomer which contains at least one electrically conductive element;
(C) applying an adhesive layer of RTV composition to a surface of said cured rubber strip and/or to a portion of said inner cured rubber surface of said tire, wherein said adhesive layer is comprised of an hydroxyl terminated organopolysiloxane and crosslinking agent, wherein said crosslinking agent contains a silane group capable of crosslinking a silanol terminated organopolysiloxane comprised of a substituted silane group having a substituent selected from at least one of oxime, acetoxy, methoxy, ethoxy, amine, oximino and enoxy groups and their mixtures;
(D) applying said cured rubber strip to said inner cured rubber surface of said tire with said adhesive layer therebetween; and
(E) curing said adhesive layer to thereby bond said cured rubber strip to said inner cured rubber surface of said tire. - View Dependent Claims (7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 21)
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Specification