US5403881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room-temperature-curable composition
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1993-10-22
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Granted: 1995-04-04
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Expires: 2013-10-22
Abstract
Abstract A room-temperature-curable composition is very storage stable under seal at room temperature, cures to give a rubbery elastic material with excellent physical properties, and is useful as a sealant composition when polyoxyalkylene has at the terminals groups of the formula <IMAGE> of which one example of a organosiloxane-modified polyoxyalkylene is <IMAGE> +TR <IMAGE> in which Me is methyl.
Inventors
- 👤 Tadashi Okawa
- 👤 Shigeki Sugiyama
- 👤 Shuji Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:12
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K3/1006; C09K3/1018; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/336; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5415; C08K5/5419; C08L; C08L83/00; C08L83/04; C08L83/10; C08L83/12
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
155 words
A room-temperature-curable composition comprising (A) 100 weight parts of a organosiloxane-modified polyoxyalkylene whose main chain is constituted of the unit with the formula --RO-- in which R is an alkylene group having 1 to 4 carbon atoms, and that has the group with the following formula in molecular chain terminal position ##STR12## in which R 1 is a divalent hydrocarbon group, R.sup. 2 is the hydrogen atom or a monovalent hydrocarbon group, R 3 and R 4 are monovalent hydrocarbon groups, X is a divalent organic group, a is 0, 1, or 2, m is a number with a value of at least 1, and is 0 or 1; (B) 0.1 to 50 weight parts of an Si 1-20 silicon compound that contains at least 2 silicon-bonded alkoxy groups in each molecule; (C) a condensation-reaction catalyst in a quantity sufficient to cure the composition; and (D) 0 to 250 weight parts of an inorganic filler.
Claim 2
Dependent Claim
155 words
A room-temperature-curable composition comprising (A) 100 weight parts of a organosiloxane-modified polyoxyalkylene whose main chain is constituted of the unit with the formula --RO-- in which R is an alkylene group having 1 to 4 carbon atoms, and that has the group with the following formula in molecular chain terminal position ##STR12## in which R 1 is a divalent hydrocarbon group, R.sup. 2 is the hydrogen atom or a monovalent hydrocarbon group, R 3 and R 4 are monovalent hydrocarbon groups, X is a divalent organic group, a is 0, 1, or 2, m is a number with a value of at least 1, and is 0 or 1; (B) 0.1 to 50 weight parts of an Si 1-20 silicon compound that contains at least 2 silicon-bonded alkoxy groups in each molecule; (C) a condensation-reaction catalyst in a quantity sufficient to cure the composition; and (D) 0 to 250 weight parts of an inorganic filler.
Claim 3
Dependent Claim
49 words
The room-temperature-curable composition according to claim 1 in which (B) is present in an amount of from 1 to 10 weight parts, (C) is present in an amount of from 0.1 to 10 weight parts, and (D) is present in an amount of from 10 to 200 weight parts.
Claim 4
Dependent Claim
31 words
The room-temperature-curable composition according to claim 1 in which each R 2 , R 3 , and R 4 is methyl, X is ethylene, a is 3, and n is 0.
Claim 5
Dependent Claim
30 words
The room-temperature-curable composition according to claim 2 in which each R 2 , R 3 and R 4 is methyl, X is ethylene, a is 3 and n is 0.
Claim 6
Dependent Claim
31 words
The room-temperature-curable composition according to claim 1 in which each R 2 , R 3 , and R 4 is methyl, X is ethylene, a is 2, and n is 0.
Claim 7
Dependent Claim
31 words
The room-temperature-curable composition according to claim 2 in which each R 2 , R 3 , and R 4 is methyl, X is ethylene, a is 2, and n is 0.
Claim 8
Dependent Claim
17 words
The room-temperature-curable composition according to claim 3 in which the catalyst of (C) is a titanium catalyst.
Claim 9
Dependent Claim
17 words
The room-temperature-curable composition according to claim 4 in which the catalyst of (C) is a titanium catalyst.
Claim 10
Dependent Claim
17 words
The room-temperature-curable composition according to claim 5 in which the catalyst of (C) is a titanium catalyst.
Claim 11
Dependent Claim
17 words
The room-temperature-curable composition according to claim 6 in which the catalyst of (C) is a titanium catalyst.
Claim 12
Dependent Claim
17 words
The room-temperature-curable composition according to claim 7 in which (B) is methyltrimethoxysilane and (D) is calcium carbonate.
Claim 13
Dependent Claim
17 words
The room-temperature-curable composition according to claim 8 in which (B) is methyltrimethoxysilane and (D) is calcium carbonate.
Claim 14
Dependent Claim
17 words
The room-temperature-curable composition according to claim 9 in which (B) is methyltrimethoxysilane and (D) is calcium carbonate.
Claim 15
Dependent Claim
17 words
The room-temperature-curable composition according to claim 10 in which (B) is methyltrimethoxysilane and (D) is calcium carbonate.
Claim 16
Dependent Claim
13 words
The room-temperature-curable composition according to claim 11 in which (C) is diisoproxytitanium bis(acetyl-acetone).
Claim 17
Dependent Claim
13 words
The room-temperature-curable composition according to claim 12 in which (C) is diisoproxytitanium bis(acetyl-acetone).
Claim 18
Dependent Claim
13 words
The room-temperature-curable composition according to claim 13 in which (C) is diisoproxytitanium bis(acetyl-acetone).
Claim 19
Dependent Claim
13 words
The room-temperature-curable composition according to claim 14 in which (C) is diisoproxytitanium bis(acetyl-acetone).
References Cited (Backward Citations)
JPS5273998A
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JPS57115456A
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US4618646A
Cited
US4888404A
Cited
US5013800A
Cited
JPH03294355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-03 | 1998-10-03 | 1999-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-03 | 2002-10-03 | 2003-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-03 | 2006-10-03 | 2007-04-04 | $7700.00 | Window Closed / Lapsed |