US3816358A
Expired / Lapsed
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Vulcanizable rubber mixtures
Assignee: Huels AG
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Filing: 1972-06-22
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Granted: 1974-06-11
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Expires: 1992-06-22
Abstract
Abstract Vulcanizable rubber mixtures having improved room temperature hardness containing 2-20% by weight, calculated on the rubber, of a polyoctenamer or polydodecenamer.
Inventors
- 👤 K Nordsiek
- 👤 R Streck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:31
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08L23/00; C08L23/02; C08L23/16; C08L23/18; C08L23/20; C08L23/22; C08L23/24; C08L65/00; C08L7/00; C08L9/00; C08L9/06; C08L91/00; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/1081; Y10T152/10819; Y10T152/10846
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
24 words
A vulcanizable elastomeric mixture according to claim 1 containing 5-15 percent of a polyoctenamer having double bonds which are 75-95 percent in the trans-configuration.
Claim 2
Dependent Claim
24 words
A vulcanizable elastomeric mixture according to claim 1 containing 5-15 percent of a polydodecenamer having double bonds which are 75-95 percent in the trans-configuration.
Claim 3
Dependent Claim
26 words
A vulcanizable elastomeric mixture according to claim 1 wherein the elastomer is selected from the group consisting of natural rubber, polyisoprene, styrene-butadiene rubber and cis-1, 4-polybutadiene.
Claim 4
Dependent Claim
34 words
A vulcanizable elastomeric mixture according to claim 1 having a deformation hardness at 20* of more than 4,000, wherein the elastomer therein has a deformation hardness of from 2,000 to 4,000 at 20* C.
Claim 5
Dependent Claim
36 words
A vulcanizable elaStomeric mixture according to claim 1 having a deformation hardness at 20* C. of from 5,000 to 9,000, wherein the elastomer therein has a deformation hardness of from 2,000 to 4,000 at 20* C.
Claim 6
Dependent Claim
22 words
A cross-linked vulcanizate of the elastomeric mixture according to claim 5, having a deformation hardness at 20* C. of more than 4,000.
Claim 7
Independent Claim
95 words
A method of increasing the deformation hardness of a vulcanizable elastomeric mixture whose elastomer has a deformation hardness at 20* C. of less than 6,000, which comprises incorporating therein an amount from 2-20 percent by weight, based on the elastomer, effective to impart a deformation hardness to the elastomeric mixture which is substantially greater than the deformation hardness of the elastomer, of a polyoctenamer, a polydodecenamer or a mixture thereof, whose double bonds are more than 60 percent in the trans-configuration and which has a reduced viscosity of 0.2 - 3.0 dl./g. at 135* C.
Claim 8
Dependent Claim
22 words
A method according to claim 8 wherein a polyoctenamer having double bonds which are 75-95 percent in the trans-configuration is incorporated therein.
Claim 9
Dependent Claim
22 words
A method according to claim 8 wherein a polydodecenamer having double bonds which are 75-95 percent in the trans-configuration is incorporated therein.
Claim 10
Dependent Claim
19 words
A method according to claim 8 wherein 5-15 percent of the polyoctenamer, polydodecenamer or mixture thereof is incorporated therein.
Claim 11
Dependent Claim
23 words
A method according to claim 8 wherein the elastomer is selected from the group consisting of natural rubber, polyisoprene, styrene-butadiene rubber and cis-1,4-polybutadiene.
Claim 12
Dependent Claim
18 words
An article of manufacture comprising an unvulcanized automobile tire formed of an elastomeric mixture according to claim 5.
Claim 13
Dependent Claim
18 words
An article of manufacture comprising an unvulcanized automobile tire formed of an elastomeric mixture according to claim 6.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |