US4514442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting a roof
Assignee: Uniroyal Chemical Co Inc
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Filing: 1984-04-16
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Granted: 1985-04-30
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Expires: 2004-04-16
Abstract
Abstract A composition comprising 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and a EPDM-butyl rubber mixture; 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and 0 to 0.5 parts of a sulfur donor curative is disclosed. The composition has particular application as roof sheeting or flashing.
Inventors
- 👤 Allen E. Crepeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24364
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
95 words
A method of protecting a roof against water leaks comprising the disposition upon said roof of a composition comprising: (a) 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and mixtures thereof; (b) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (c) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.
Claim 2
Independent Claim
95 words
A method of protecting a roof against water leaks comprising the disposition upon said roof of a composition comprising: (a) 100 parts of an elastomer selected from the group consisting of EPDM, butyl rubber and mixtures thereof; (b) 0.1 to 3.0 parts of a compound having the structural formula [(CH 2 ) n NCS] 2 S 6 , where n is 4 or 5; and (c) 0 to 5.0 parts of a sulfur donor curative; wherein said components (b) and (c) provide at least 0.25 part of total available sulfur, all parts being by weight.
Claim 3
Dependent Claim
12 words
A method in accordance with claim 1, wherein said elastomer is EPDM.
Claim 4
Dependent Claim
13 words
A method in accordance with claim 1, wherein said elastomer is butyl rubber.
Claim 5
Dependent Claim
18 words
A method in accordance with claim 1, wherein said elastomer is a mixture of EPDM and butyl rubber.
Claim 6
Dependent Claim
14 words
A method in accordance with claim 1, wherein said component (b) is dipentamethylenethiuram hexasulfide.
Claim 7
Dependent Claim
43 words
A method in accordance with claim 1, wherein said component (c) is selected from the group consisting of sulfur, dimethyl-diphenylthiuram disulfide, dipentamethylenethiuram disulfide, dipentamethylenethiuram tetrasulfide, tetraethylthiuram disulfide, tetramethylthiuram disulfide, alkylphenol disulfides, selenium diethyldithiocarbamate, selenium dimethyldithiocarbamate, 4,4'-dithiodimorpholine, N,N'-dithiobis(hexahydro-2H-azepinon-2) and mixtures of the above compounds.
Claim 8
Dependent Claim
13 words
A method in accordance with claim 6, wherein said component (c) is sulfur.
Claim 9
Dependent Claim
41 words
A method in accordance with claim 1, wherein said component (b) is present in a concentration of 0.2 to 2.0 parts and said component (c) is present in a concentration of 0.4 to 3.0 parts, all said parts being by weight.
Claim 10
Dependent Claim
41 words
A method in accordance with claim 8, wherein said component (b) is present in a concentration of 0.3 to 1.2 parts and said component (c) is present in a concentration of 0.5 to 2.0 parts, all said parts being by weight.
Claim 11
Dependent Claim
23 words
A method in accordance with claim 1, wherein said composition includes an accelerator, said accelerator characterized by the absence of sulfur donor capability.
Claim 12
Dependent Claim
16 words
A method in accordance with claim 1, wherein said composition includes at least one processing oil.
Claim 13
Dependent Claim
15 words
A method in accordance with claim 1, wherein said composition includes at least one plasticizer.
Claim 14
Dependent Claim
18 words
A method in accordance with claim 1, wherein said composition comprises at least one filler and reinforcing agent.
References Cited (Backward Citations)
CA723351A
Cited
US3404495A
Cited
GB1310003A
Cited
US3937640A
Cited
US4039706A
Cited
US4248926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |