US4433127A
Expired / Lapsed
US
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Room temperature curable silicone compositions
Assignee: Matsumoto Seiyaku Kogyo KK
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Filing: 1982-06-17
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Granted: 1984-02-21
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Expires: 2002-06-17
Abstract
Abstract A room temperature curable silicone composition of one-pack type comprising a silanol-terminated polyorganosiloxane compound, a silyl isocyanate compound and a Ti--O--P bond-containing organic compound has excellent storage stability, short curing time, and excellent physical properties and is not susceptible to discoloration.
Inventors
- 👤 Iwakichi Sugiyama
- 👤 Kiyoshi Endo
- 👤 Yukihisa Takaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:48
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C08K5/54; C08K5/544; C08K5/5465
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A room temperature curable silicone composition comprising a silanol-terminated polyorganosiloxane compound selected from the group consisting of siloxane compounds having a hydroxy group bonded to a silicon atom and being capable of forming a two-dimensional network, a silyl isocyanate having three or more isocyanate groups directly bonded to a silicon atom and a Ti--O--P bond-containing organic compound.
Claim 2
Dependent Claim
57 words
A room temperature curable silicone composition comprising a silanol-terminated polyorganosiloxane compound selected from the group consisting of siloxane compounds having a hydroxy group bonded to a silicon atom and being capable of forming a two-dimensional network, a silyl isocyanate having three or more isocyanate groups directly bonded to a silicon atom and a Ti--O--P bond-containing organic compound.
Claim 3
Dependent Claim
34 words
A composition as claimed in claim 1, wherein said silyl isocyanate compound is of the formula Si(NCO) 4 , RSi(NCO) 3 or ROSi(NCO) 3 in which R represents a substituted or unsubstituted hydrocarbon radical.
Claim 4
Dependent Claim
59 words
A composition as claimed in claim 1, wherein said silyl isocyanate compound is a partial condensate prepared by partially hydrolyzing the Si--NCO bonds of a compound represented by the formula Si(NCO) 4 , RSi(NCO) 3 or ROSi(NCO) 3 in which R represents a substituted or unsubstituted hydrocarbon radical, and which contains three or more Si-NCO bonds in the molecule.
Claim 5
Dependent Claim
84 words
A composition as claimed in claim 1, wherein said silyl isocyanate compound is a partial condensate between a compound of the formula Si(NCO) 4 , RSi(NCO) 3 , R 2 Si(NCO) 2 , ROSi(NCO) 3 or (RO) 2 Si(NCO) 2 in which R represents a substituted or unsubstituted hydrocarbon radical, and a compound containing at least one active hydrogen capable of reacting with at least one Si--NCO bond contained in the former compound and which contains three or more Si--NCO bonds in the molecule.
Claim 6
Dependent Claim
82 words
A composition as claimed in claim 1, wherein said Ti--O--P bond-containing organic compound is prepared by reacting an acid phosphorus compound represented by the formula ##STR63## wherein R' and R" each represent a substituted or unsubstituted hydrocarbon radical, n is 0 or 1, and l and m are 0, 1 or 2 provided that the sum of l+m is 1 when n is 0 or 2 when n is 1, or a pyrophosphoric acid compound thereof with a tetravalent titanium organic compound.
Claim 7
Dependent Claim
95 words
A composition as claimed in claim 1, wherein said Ti--O--P bond-containing organic compound is obtained by adding a coordinating basic nitrogen compound to a compound which is prepared by reacting an acid phosphorus compound represented by the formula ##STR64## wherein R' and R" each represent a substituted or unsubstituted hydrocarbon radical, n is 0 or 1, and l and m are 0, 1 or 2 provided that the sum of l+m is 1 when n is 0 or 2 when n is 1, or a pyrophosphoric acid compound thereof with a tetravalent titanium organic compound.
References Cited (Backward Citations)
US3796686A
Cited
US4345053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |