US5502096A
Expired / Lapsed
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Room temperature quick curable organopolysiloxane composition
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1994-10-25
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Granted: 1996-03-26
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Expires: 2014-10-25
Abstract
Abstract A room temperature curable rubber composition of a condensation curing type that comprises as a base polymer a diorganopolysiloxane or a polyoxyalkylene in which both ends of the molecular chain are blocked with a hydrolyzable silyl group, and a carbonyl compound, an amino group containing organic compound, and an alpha , beta -unsaturated carbonyl compound that are blended with the base polymer. Since the room temperature curable rubber composition is cured with water in the air and at the same time the dehydration condensation of the carbonyl group and the amino group produces water in the composition, the quick curability and deep curability are improved remarkably.
Inventors
- 👤 Tsuneo Kimura
- 👤 Masatoshi Arai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:59
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C08K5/0025; C08L; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
A room temperature quick curable composition, comprising (A) a diorganopolysiloxane or a polyoxyalkylene polymer wherein both ends of the molecular chain are blocked with a hydrolyzable silyl group and that has a viscosity of 25 to 1000,000 centistokes at 25° C., (B) a carbonyl compound having at least one carbonyl group in the molecule and no unsaturated bond between the alpha carbon and the beta carbon, (C) an organic compound having at least one NH 2 group in the molecule, and (D) an organic compound having at least one α,β-unsaturated carbonyl group in the molecule, with said components (B) and (C) being selected such that the carbonyl group and the NH 2 group are reactive with each other.
Claim 2
Dependent Claim
118 words
A room temperature quick curable composition, comprising (A) a diorganopolysiloxane or a polyoxyalkylene polymer wherein both ends of the molecular chain are blocked with a hydrolyzable silyl group and that has a viscosity of 25 to 1000,000 centistokes at 25° C., (B) a carbonyl compound having at least one carbonyl group in the molecule and no unsaturated bond between the alpha carbon and the beta carbon, (C) an organic compound having at least one NH 2 group in the molecule, and (D) an organic compound having at least one α,β-unsaturated carbonyl group in the molecule, with said components (B) and (C) being selected such that the carbonyl group and the NH 2 group are reactive with each other.
Claim 3
Dependent Claim
85 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (A) is a diorganopolysiloxane that is represented by the following general formula (3): ##STR2## wherein R 2 , R 3 , and R 4 , which are the same or different, each represent an unsubstituted or substituted monovalent hydrocarbon group, X represents a hydrolyzable group, m is an integer of 1 to 3, and n is a positive integer, and has a viscosity of 25 to 1,000,000 cetistokes at 25° C.
Claim 4
Dependent Claim
87 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (A) is a polyoxyalkylene polymer represented by the following general formula (4): X.sub.3-q R.sup.6.sub.q Si-(R.sup.5 O).sub.p -SiR.sup.6.sub.r X.sub.3-r ( 4) wherein R 5 's independently each represent a linear or branched alkylene group having 2 to 12 carbon atoms, R 6 's independently represent a monovalent organic group, X represents a hydrolyzable group, p is an integer of 1 to 500, and q and r are each an integer of 0 or 1.
Claim 5
Dependent Claim
59 words
A room temperature quick curable composition as claimed in claim 3, wherein the oxyalkylene unit that constitutes the backbone chain of the polyoxyalkylene polymer represented by the above general formula (4) is -CH 2 CH 2 O-, -CH 2 CH(CH 3 )O-, -CH 2 CH(CH 2 CH 3 )O-, or -CH 2 CH 2 CH 2 CH 2 O-.
Claim 6
Dependent Claim
40 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (B) is a carbonyl compound wherein the alpha carbon atom with respect to the carbonyl group is a primary carbon atom or a secondary carbon atom.
Claim 7
Dependent Claim
37 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (B) is a carbonyl compound wherein the alpha carbon atom with respect to the carbonyl group constitutes a part of an aromatic ring.
Claim 8
Dependent Claim
41 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (C) is an amino group containing organic compound wherein the alpha carbon atom of the amino group is a primary carbon atom or a secondary carbon atom.
Claim 9
Dependent Claim
38 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (C) is an amino group containing organic compound wherein the alpha carbon atom of the amino group constitutes a part of an aromatic ring.
Claim 10
Dependent Claim
23 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (D) is an acrylic compound or a methacrylic compound.
Claim 11
Dependent Claim
99 words
A room temperature quick curable composition as claimed in claim 1, wherein said component (B) is blended in such an amount that the amount of the carbonyl group is 0.001 to 1 mol per 100 g of the component (A), said component (C) is blended in such an amount that the amount of the NH 2 group is 0.001 to 1 mol per 100 g of the component (A), and said component (D) is blended in such an amount that the amount of the α,β-unsaturated carbonyl group is 0.001 to 10 mol per 100 g of the component (A).
Claim 12
Dependent Claim
13 words
A cured product obtained by curing a composition as claimed in claim 1.
References Cited (Backward Citations)
US4528324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-03-26 | 1999-09-25 | 2000-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-03-26 | 2003-09-25 | 2004-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-03-26 | 2007-09-25 | 2008-03-26 | $7700.00 | Window Closed / Lapsed |