Patent EP0364391A2 successfully refreshed from Google Patents.
EP0364391A2
Expired / Lapsed
EP
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Tire having decorative sidewall
Assignee: Goodyear Tire and Rubber Co
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Filing: 1989-10-10
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Granted: —
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Expires: 2009-10-10
Abstract
Abstract Tires having white sidewalls are very popular in the United States and Canada. Tires having white lettering thereon are also very popular. This invention discloses a process for preparing such tires having decorative appliques thereon. By practicing the process of this invention, tires having better uniformity can be built at lower costs than when standard tire building techniques are utilized. This invention specifically relates to a method of preparing a pneumatic rubber tire having a decorative design on the sidewall thereof which comprises (a) applying the decorative design to the sidewall of an uncured tire and (b) curing the tire; wherein the decorative design is comprised of from about 25 weight percent to about 75 weight percent syndiotactic 1,2-polybutadiene having a melting point which is within the range of about 100°C to about 160°C and from about 25 weight percent to about 75 weight percent of at least one polydiene rubber which is cocurable with said syndiotactic 1,2-polybutadiene, at least one pigment or colorant, sulfur, and zinc oxide.
Inventors
- 👤 Robert John Gartland
- 👤 Anthony Francis Finelli
- 👤 Anthony Joseph Bell
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 19:14
CPC Classifications
B; B60; B60C; B60C13/00; B60C13/04; B29; B29D; B29D30/00; B29D30/06; B29D30/72; B29D2030/726; Y; Y10; Y10S; Y10S152/00; Y10S152/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
105 words
A method of preparing a pneumatic rubber tire having a decorative design on the sidewall thereof which is characterized by (a) applying the decorative design to the sidewall of an uncured tire and (b) curing the tire; wherein the decorative design is comprised of from about 25 weight percent to about 75 weight percent syndiotactic 1,2-polybutadiene having a melting point which is within the range of about 100°C to about 160°C and from about 25 weight percent to about 75 weight percent of at least one polydiene rubber which is cocurable with said syndiotactic 1,2-polybutadiene, at least one pigment or colorant, sulfur, and zinc oxide.
Claim 2
Independent Claim
105 words
A method of preparing a pneumatic rubber tire having a decorative design on the sidewall thereof which is characterized by (a) applying the decorative design to the sidewall of an uncured tire and (b) curing the tire; wherein the decorative design is comprised of from about 25 weight percent to about 75 weight percent syndiotactic 1,2-polybutadiene having a melting point which is within the range of about 100°C to about 160°C and from about 25 weight percent to about 75 weight percent of at least one polydiene rubber which is cocurable with said syndiotactic 1,2-polybutadiene, at least one pigment or colorant, sulfur, and zinc oxide.
Claim 3
Dependent Claim
111 words
A pneumatic tire having a decorative applique on at least one sidewall thereof, the improvement which is characterized by utilizing as the material for the decorative applique a blend of syndiotactic 1,2-polybutadiene having a melting point which is within the range of about 100°C to about 160°C and at least one rubber which is cocurable with the syndiotactic 1,2-polybutadiene; wherein the blend contains from about 25 weight percent to about 75 weight percent syndiotactic 1,2-polybutadiene and from about 25 weight percent to about 75 weight percent of the rubber based upon the total amount of polymers in the blend, and wherein the blend further comprises at least one pigment or colorant.
Claim 4
Dependent Claim
111 words
A pneumatic tire having a decorative applique on at least one sidewall thereof, the improvement which is characterized by utilizing as the material for the decorative applique a blend of syndiotactic 1,2-polybutadiene having a melting point which is within the range of about 100°C to about 160°C and at least one rubber which is cocurable with the syndiotactic 1,2-polybutadiene; wherein the blend contains from about 25 weight percent to about 75 weight percent syndiotactic 1,2-polybutadiene and from about 25 weight percent to about 75 weight percent of the rubber based upon the total amount of polymers in the blend, and wherein the blend further comprises at least one pigment or colorant.
Claim 5
Dependent Claim
28 words
A pneumatic tire as specified in claim 2 characterized in that the rubber is selected from the group consisting of cis-1,4-polybutadiene, styrene-butadiene rubber, natural rubber and synthetic polyisoprene.
Claim 6
Dependent Claim
47 words
A pneumatic tire as specified in claim 2 characterized in that the rubber is comprised of from about 30 to about 80 weight percent chlorobutyl rubber, from about 15 to about 55 weight percent natural rubber, and from about 2 to about 10 weight percent EPDM rubber.
Claim 7
Dependent Claim
28 words
A pneumatic tire as specified in claim 4 characterized in that the blend is comprised of from about 33 weight percent to about 67 weight percent syndiotactic 1,2-polybutadiene.
Claim 8
Dependent Claim
97 words
A pneumatic tire as specified in any of claims 2 to 5 characterized in that the rubber is comprised of from about 55 weight percent to about 65 weight percent chlorobutyl rubber, from about 25 weight percent to about 45 weight percent natural rubber, and from about 3 weight to about 7 weight percent EPDM rubber; characterized in that said blend is comprised of from about 45 weight percent to about 55 weight percent syndiotactic 1,2-polybutadiene; and characterized in that the melting point of the syndiotactic 1,2-polybutadiene is within the range of about 100°C to about 160°C.
Claim 9
Dependent Claim
43 words
A pneumatic tire as specified in any of claims 2 to 6 characterized in that the melting point of the syndiotactic 1,2-polybutadiene is within the range of about 120°C to about 160°C; and characterized in that the pigment or colorant is titanium dioxide.
Claim 10
Dependent Claim
25 words
A method as specified in claim 1 characterized in that the decorative design is positioned in a mold prior to putting the uncured tire therein.
Claim 11
Dependent Claim
23 words
A method as specified in claim 1 or 8 characterized in that the decorative design is cocured with the sidewall of the tire.
Claim 12
Dependent Claim
31 words
A pneumatic tire as specified in claim 2, 3 or 6 characterized in that the melting point of the syndiotactic 1,2-polybutadiene is within the range of about 105°C to about 150°C.
References Cited (Backward Citations)
No citation records indexed.
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