Patent US4623700A successfully refreshed from Google Patents.
US4623700A
Expired / Lapsed
US
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Curable organopolysiloxane composition useful for coating optical fibers
Assignee: General Electric Co
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Filing: 1985-06-07
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Granted: 1986-11-18
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Expires: 2005-06-07
Abstract
Abstract The present invention provides curable silicone compositions, comprising: (a) a substantially linear olefinic group-containing polydiorganosiloxane; (b) a resinous olefinic group-containing polysiloxane; (c) a reactive organic monomer; (d) an organohydrogenpolysiloxane, and (e) a hydrosilation catalyst. There are also provided articles of manufacture prepared by coating substrates such as optical fibers with said composition as well as methods for making said curable compositions and articles of manufacture.
Inventors
- 👤 Frank J. Traver
- 👤 Simon M. John
- 👤 Duane F. Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:35
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; C03C17/00; C03C17/28; C03C17/30; C03C25/104; C03C25/106; C08; C08K; C08K5/00; C08K5/01; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/20; C08G77/80; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
116 words
A curable composition, comprising: (a) 100 parts by weight of a substantially linear olefinic group-containing polydiorganosiloxane; (b) from about 50 to about 400 parts by weight of a resinous olefinic group-containing polysiloxane per 100 parts by weight of component (a); (c) from about 0.5 to about 25 percent by weight based on the weight of components (a) and (b) of an organic monomer capable of reacting with the hydrogen atoms of component (d); (d) an organohydrogenpolysiloxane crosslinking agent in an amount sufficient to provide from about 0.8 to about 3 silicon-bonded hydrogen atoms per alkenyl radical in components (a), (b) and (c); and (e) an effective amount of precious metal or precious metal containing hydrosilation catalyst.
Claim 2
Dependent Claim
116 words
A curable composition, comprising: (a) 100 parts by weight of a substantially linear olefinic group-containing polydiorganosiloxane; (b) from about 50 to about 400 parts by weight of a resinous olefinic group-containing polysiloxane per 100 parts by weight of component (a); (c) from about 0.5 to about 25 percent by weight based on the weight of components (a) and (b) of an organic monomer capable of reacting with the hydrogen atoms of component (d); (d) an organohydrogenpolysiloxane crosslinking agent in an amount sufficient to provide from about 0.8 to about 3 silicon-bonded hydrogen atoms per alkenyl radical in components (a), (b) and (c); and (e) an effective amount of precious metal or precious metal containing hydrosilation catalyst.
Claim 3
Dependent Claim
62 words
A curable composition as in claim 1, wherein the olefinic group-containing polydiorganosiloxane has the general formula ##STR3## where each R 1 is an independently selected monovalent substituted or unsubstituted, saturated or unsaturated hydrocarbon radical, R 2 is an alkenyl radical, and n is a number sufficient to provide a viscosity of from about 10 centipoise to about 5,000,000 centipoise at 25° C.
Claim 4
Dependent Claim
17 words
A curable composition as in claim 2, wherein the R 2 radicals are vinyl or allyl radicals.
Claim 5
Dependent Claim
22 words
A curable composition as in claim 2, wherein the viscosity ranges from about 100 centipoise to about 1,000,000 centipoise at 25° C.
Claim 6
Dependent Claim
22 words
A curable composition as in claim 3, wherein the viscosity ranges from about 1000 centipoise to about 250,000 centipoise at 25° C.
Claim 7
Dependent Claim
21 words
A curable composition as in claim 1, wherein the resinous olefinic group-containing polysiloxane is an MQ resin or an MDQ resin.
Claim 8
Dependent Claim
26 words
A curable composition as in claim 6, wherein the resin has from about 1.5 to about 10 mole percent of siloxy units containing silicon-bonded alkenyl groups.
Claim 9
Dependent Claim
33 words
A curable composition as in claim 2, wherein there is from about 150 to about 250 parts by weight of MQ or MDQ resin per 100 parts by weight of olefinic group-containing polydiorganosiloxane.
Claim 10
Dependent Claim
14 words
A curable composition as in claim 1, wherein the organic monomer is an α-olefin.
Claim 11
Dependent Claim
27 words
A curable composition as in claim 9, wherein the α-olefin has the general formula CH.sub.3 (CH.sub.2).sub.x --CH═CH.sub.2 where x is an integer from 1 to about 30.
Claim 12
Dependent Claim
19 words
A curable composition as in claim 10, wherein the value of x is from about 13 to about 27.
Claim 13
Dependent Claim
34 words
A curable composition as in claim 9, wherein the α-olefin is present in an amount of from about 2.5 to about 20 percent by weight based on the weight of compoennts (a) and (b).
Claim 14
Dependent Claim
34 words
A curable composition as in claim 9, wherein the α-olefin is present in an amount of from about 5 to about 15 percent by weight based on the weight of components (a) and (b).
Claim 15
Dependent Claim
18 words
A curable composition as in claim 1, wherein the organic monomer is an acrylated α, ω aliphatic diol.
Claim 16
Dependent Claim
14 words
A curable composition as in claim 9, wherein the organohydrogenpolysiloxane is a silicone resin.
Claim 17
Dependent Claim
14 words
A curable composition as in claim 9, wherein the organohydrogenpolysiloxane is a silicone fluid.
Claim 18
Dependent Claim
18 words
A curable composition as in claim 1, wherein the components are provided in at least two separate packages.
Claim 19
Independent Claim
122 words
A method for making a curable composition, comprising: I. mixing: (a) 100 parts by weight of a substantially linear olefinic group-containing polydiorganosiloxane; (b) from about 50 to about 400 parts by weight of a resinous olefinic group-containing polysiloxane per 100 parts by weight of component (a); (c) from about 0.5 to about 25 percent by weight based on the weight of components (a) and (b) of an organic monomer capable of reacting with the hydrogen atoms of component (d); (d) an organohydrogenpolysiloxane crosslinking agent in an amount sufficient to provide from about 0.8 to about 3 silicon-bonded hydrogen atoms per alkenyl radical in components (a), (b) and (c); and (e) an effective amount of precious metal or precious metal containing hydrosilation catalyst.
Claim 20
Independent Claim
122 words
A method for making a curable composition, comprising: I. mixing: (a) 100 parts by weight of a substantially linear olefinic group-containing polydiorganosiloxane; (b) from about 50 to about 400 parts by weight of a resinous olefinic group-containing polysiloxane per 100 parts by weight of component (a); (c) from about 0.5 to about 25 percent by weight based on the weight of components (a) and (b) of an organic monomer capable of reacting with the hydrogen atoms of component (d); (d) an organohydrogenpolysiloxane crosslinking agent in an amount sufficient to provide from about 0.8 to about 3 silicon-bonded hydrogen atoms per alkenyl radical in components (a), (b) and (c); and (e) an effective amount of precious metal or precious metal containing hydrosilation catalyst.
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| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |