US4476241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyzing emulsion paper release compositions
Assignee: General Electric Co
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Filing: 1983-10-14
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Granted: 1984-10-09
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Expires: 2003-10-14
Abstract
Abstract A method of polymerizing silanol-containing organosilicon compounds is provided. Catalysts comprising dioctyl tin dineodeconate lend a unique combination of properties to curable silicone paper release coatings including long bath life, storage stability, low odor, reactivity over a wide temperature range and low release.
Inventors
- 👤 Anthony J. Dallavia, Jr.
- 👤 Gordon T. Van Vleck
- 👤 Frank J. Traver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:51
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; C; C08; C08K; C08K5/00; C08K5/56; C08K5/57
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
38 words
A dioctyl tin dineodeconate catalyst emulsion capable of promoting cross-polymerization of silanol-containing organosilicon compounds comprising, in intimate admixture: (a) a major proportion of dioctyl tin dineodeconate, and (b) minor proportions, independently, of (i) water and (ii) polyvinyl alcohol.
Claim 2
Dependent Claim
38 words
A dioctyl tin dineodeconate catalyst emulsion capable of promoting cross-polymerization of silanol-containing organosilicon compounds comprising, in intimate admixture: (a) a major proportion of dioctyl tin dineodeconate, and (b) minor proportions, independently, of (i) water and (ii) polyvinyl alcohol.
Claim 3
Dependent Claim
21 words
The catalyst emulsion as defined in claim 1 which also includes the minor components, (iii) formalin and (iv) sodium lauryl sulfate.
Claim 4
Dependent Claim
43 words
The catalyst emulsion as defined in claim 2 wherein said emulsion contains about 50 weight percent dioctyl tin dineodeconate, about 30.8 weight percent water, about 12.5 weight percent polyvinyl alcohol, about 0.5 weight percent sodium lauryl sulfate, and about 0.2 weight percent formalin.
Claim 5
Dependent Claim
64 words
A dioctyl tin dineodeconate catalyst emulsion capable of promoting cross-polymerization of silanol-containing organosilicon compounds prepared by (1) admixture (a) a major proportion of dioctyl tin dineodeconate with (b) minor proportions, independently, of water polyvinyl alcohol, formalin and sodium lauryl sulfate; (2) blending the admixture, with required small amounts of water, until homogenous; and thereafter (3) milling the homogeneous blend to produce a stable emulsion.
Claim 6
Dependent Claim
64 words
A dioctyl tin dineodeconate catalyst emulsion capable of promoting cross-polymerization of silanol-containing organosilicon compounds prepared by (1) admixture (a) a major proportion of dioctyl tin dineodeconate with (b) minor proportions, independently, of water polyvinyl alcohol, formalin and sodium lauryl sulfate; (2) blending the admixture, with required small amounts of water, until homogenous; and thereafter (3) milling the homogeneous blend to produce a stable emulsion.
References Cited (Backward Citations)
US3499870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |