US4534812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming tires
Assignee: Zeon Kasei Co Ltd
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Filing: 1984-02-28
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Granted: 1985-08-13
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Expires: 2004-02-28
Abstract
Abstract A method for forming tires by the use of a tire-forming machine having a drum bladder and a turnup bladder. An organic halogen compound having in the molecule thereof a ##STR1## bond, in which X represents a halogen atom, is applied to the surfaces of the drum bladder and turnup bladder of the machine to form a layer of the organic halogen compound, whereby unvulcanized rubber for tires is prevented from sticking to said bladders during the formation of tires form the unvulcanized rubber.
Inventors
- 👤 Yoshihiro Fukui
- 👤 Isamu Tuchiya
- 👤 Shun Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:26
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/32; B29D30/24; B29D30/26; B29D2030/2628; B29D2030/3221; B29D2030/3228
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
A method for forming tires by the use of a tire-forming machine including a drum bladder and a turnup bladder, the method comprising applying an organic halogen compound having in the molecule a ##STR5## bond, in which X represents a halogen, to the surfaces of the drum bladder and turnup bladder to form a layer of the organic halogen compound thereon, whereby sticking of a unvulcanized rubber for tires to the bladders is prevented during the course of the forming of a tire from the unvulcanized rubber.
Claim 2
Independent Claim
87 words
A method for forming tires by the use of a tire-forming machine including a drum bladder and a turnup bladder, the method comprising applying an organic halogen compound having in the molecule a ##STR5## bond, in which X represents a halogen, to the surfaces of the drum bladder and turnup bladder to form a layer of the organic halogen compound thereon, whereby sticking of a unvulcanized rubber for tires to the bladders is prevented during the course of the forming of a tire from the unvulcanized rubber.
Claim 3
Dependent Claim
24 words
The method according to claim 1, wherein said organic halogen compound is applied in an amount of from 3 to 15 g/m 2 .
Claim 4
Dependent Claim
17 words
The method according to claim 2, wherein said organic halogen compound is a halide of isocyanuric acid.
Claim 5
Dependent Claim
26 words
The method according to claim 2, wherein said organic halogen compound is in the form of an 0.1 to 20 wt.% solution thereof in a solvent.
Claim 6
Dependent Claim
41 words
The method according to claim 1, wherein the drum bladder and the turnup bladder are each made of polymers comprising at least 5 parts by weight of a polymer having double bonds therein per 100 parts by weight of the polymers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |