US6232424B1
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Soluble silicone resin compositions having good solution stability
Assignee: Dow Silicones Corp
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Filing: 1999-12-13
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Granted: 2001-05-15
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Expires: 2019-12-13
Abstract
Abstract Soluble silicone resin compositions having good solution stability and a method for their preparation. The silicone resin comprises the reaction product of a mixture comprising (A) 15-70 mol % of a tetraalkoxysilane described by formula Si(OR 1 ) 4 , where each R 1 , is an independently selected alkyl group comprising 1 to about 6 carbon atoms, (B) 12 to 60 mol % of an organosilane described by formula R 4 SiX 3 , where R 4 , is selected from the group consisting of alkyl groups comprising 1 to about 6 carbon atoms and phenyl and each X is an independently selected hydrolyzable substituent, (C) 15 to 70 mole percent of an organotrialkoxysilane described by formula R 2 Si(OR 3 ) 3 , where R 2 , is a hydrocarbon group comprising about 8 to 24 carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having about 8 to 24 carbon atoms and each R 3 , is an independently selected alkyl group comprising 1 to about 6 carbon atoms; in the presence of (D) water, (E) hydrolysis catalyst, and (F) organic solvent for the reaction product.
Inventors
- 👤 Bianxiao Zhong
- 👤 Russell Keith King
- 👤 Kyuha Chung
- 👤 Shizhong Zhang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:02
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/04; C08; C08G; C08G77/00; C08G77/02; C08G77/04; C08G77/12
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
177 words
A silicone resin comprising the reaction product of a mixture comprising (A) 15-70, mol % of a tetraalkoxysilane described by formula Si(OR 1 ) 4 , where each R 1 , is an independently selected alkyl group comprising 1, to about 6, carbon atoms, (B) 12, to 60, mol % of an organosilane described by formula R 4 SiX 3 , where R 4 , is selected from the group consisting of alkyl groups comprising 1, to about 6, carbon atoms and phenyl and each X is an independently selected hydrolyzable group, (C) 15, to 70, mole percent of an organotrialkoxysilane described by formula R 2 Si(OR 3 ) 3 , where R 2 , is a hydrocarbon group comprising about 8, to 24, carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having about 8, to 24, carbon atoms and each R 3 , is an independently selected alkyl group comprising 1, to about 6, carbon atoms; in the presence of (D) water, (E) hydrolysis catalyst, and (F) organic solvent for the reaction product.
Claim 2
Dependent Claim
177 words
A silicone resin comprising the reaction product of a mixture comprising (A) 15-70, mol % of a tetraalkoxysilane described by formula Si(OR 1 ) 4 , where each R 1 , is an independently selected alkyl group comprising 1, to about 6, carbon atoms, (B) 12, to 60, mol % of an organosilane described by formula R 4 SiX 3 , where R 4 , is selected from the group consisting of alkyl groups comprising 1, to about 6, carbon atoms and phenyl and each X is an independently selected hydrolyzable group, (C) 15, to 70, mole percent of an organotrialkoxysilane described by formula R 2 Si(OR 3 ) 3 , where R 2 , is a hydrocarbon group comprising about 8, to 24, carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having about 8, to 24, carbon atoms and each R 3 , is an independently selected alkyl group comprising 1, to about 6, carbon atoms; in the presence of (D) water, (E) hydrolysis catalyst, and (F) organic solvent for the reaction product.
Claim 3
Independent Claim
178 words
A method for making a silicone resin comprising forming a mixture comprising (A) 15-70, mol % of a tetraalkoxysilane described by formula Si(OR 1 ) 4 , where each R 1 , is an independently selected alkyl group comprising 1, to about 6, carbon atoms, (B) 12, to 60, mol % of a hydrosilane described by formula R 4 SiX 3 , where R 4 , is selected from the group consisting of alkyl groups comprising 1, to about 6, carbon atoms and phenyl and each X is an independently selected hydrolyzable group, (C) 15, to 70, mole percent of an organotrialkoxysilane described by formula R 2 Si(OR 3 ) 3 , where R 2 , is a hydrocarbon group comprising about 8, to 24, carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having about 8, to 24, carbon atoms and each R 3 , is and independently selected alkyl group comprising 1, to about 6, carbon atoms; in the presence of (D) water, (E) hydrolysis catalyst, and (F) organic solvent for the reaction product.
Claim 4
Independent Claim
178 words
A method for making a silicone resin comprising forming a mixture comprising (A) 15-70, mol % of a tetraalkoxysilane described by formula Si(OR 1 ) 4 , where each R 1 , is an independently selected alkyl group comprising 1, to about 6, carbon atoms, (B) 12, to 60, mol % of a hydrosilane described by formula R 4 SiX 3 , where R 4 , is selected from the group consisting of alkyl groups comprising 1, to about 6, carbon atoms and phenyl and each X is an independently selected hydrolyzable group, (C) 15, to 70, mole percent of an organotrialkoxysilane described by formula R 2 Si(OR 3 ) 3 , where R 2 , is a hydrocarbon group comprising about 8, to 24, carbon atoms or a substituted hydrocarbon group comprising a hydrocarbon chain having about 8, to 24, carbon atoms and each R 3 , is and independently selected alkyl group comprising 1, to about 6, carbon atoms; in the presence of (D) water, (E) hydrolysis catalyst, and (F) organic solvent for the reaction product.
Claim 5
Dependent Claim
23 words
A silicone resin according to claim 1 , where the mixture comprises about 25, mol % to 50, mol % of the tetraalkoxysilane.
Claim 6
Dependent Claim
15 words
A silicone resin according to claim 1 , were the tetraalkoxysilane is tetramethoxysilane or tetraethoxysilane.
Claim 7
Dependent Claim
23 words
A silicone resin according to claim 1 , where the mixture comprises about 15, mol % to 40, mol % of the organosilane.
Claim 8
Dependent Claim
21 words
A silicone resin according to claim 1 , where X is an alkoxy group comprising 1, to about 6, carbon atoms.
Claim 9
Dependent Claim
24 words
A silicone resin according to claim 1 , where R 4 , is selected from the group consisting of methyl, ethyl, propyl, and phenyl.
Claim 10
Dependent Claim
23 words
A silicone resin according to claim 1 , where the mixture comprises about 15, mol % to 40, mol % of the organotrialkoxysilane.
Claim 11
Dependent Claim
24 words
A silicone resin according to claim 1 , where R 2 , is a linear alkyl group comprising about 8, to 24, carbon atoms.
Claim 12
Dependent Claim
24 words
A silicone resin according to claim 1 , where R 2 , is a linear alkyl group comprising about 16, to 20, carbon atoms.
Claim 13
Dependent Claim
22 words
A silicone resin according to claim 1 , where the organotrialkoxysilane is selected from the group consisting of octyltriethoxysilane, octadecyltrimethoxysilane, and hexadecyltrimethoxysilane.
Claim 14
Dependent Claim
24 words
A silicone resin according to claim 1 , where the mixture comprises about 1.4, to 6, moles of water per mole of components (A)+(B)+(C).
Claim 15
Dependent Claim
24 words
A silicone resin according to claim 1 , where the mixture comprises about 2.5, to 4.5, moles of water per mole of components (A)+(B)+(C).
Claim 16
Dependent Claim
26 words
A silicone resin according to claim 1 , where the mixture comprises about 0.02, to 0.5, mole of the hydrolysis catalyst per mole of components (A)+(B)+(C).
Claim 17
Dependent Claim
26 words
A silicone resin according to claim 1 , where the mixture comprises about 0.1, to 0.3, moles of the hydrolysis catalyst per mole of components (A)+(B)+(C).
Claim 18
Dependent Claim
15 words
A silicone resin according to claim 1 , where the hydrolysis catalyst is hydrogen chloride.
Claim 19
Dependent Claim
26 words
A silicone resin according to claim 1 , where the mixture comprises about 70, to 95, weight percent of the organic solvent for the reaction product.
Claim 20
Dependent Claim
26 words
A silicone resin according to claim 1 , where the mixture comprises about 85, to 95, weight percent of the organic solvent for the reaction product.
Claim 21
Dependent Claim
37 words
A silicone resin according to claim 1 , where the reaction product comprising the silicone resin is neutralized and the silicone resin is dissolved in an organic solvent and 0.05, to 0.4, weight percent water is added.
Claim 22
Dependent Claim
37 words
A silicone resin according to claim 1 , where the reaction product comprising the silicone resin is neutralized and the silicone resin is dissolved in an organic solvent and 0.1, To 0.25, weight percent water is added.
Claim 23
Dependent Claim
62 words
A silicone resin according to claim 1 , where the reaction product comprising the silicone resin in an organic solvent is heated in the presence of an optional condensation catalyst at a temperature sufficient to effect condensation of the silicone resin to a weight average molecular weight of about 100,000, to 400,000, and the solvent solution of condensed silicone resin is neutralized.
Claim 24
Dependent Claim
52 words
A silicone resin according to claim 1 , where the reaction product comprising the silicone resin in an organic solvent is heated in the presence of an optional condensation catalyst at a temperature sufficient to effect condensation of the silicone resin to a weight average molecular weight of about 150,000, to 250,000.
Claim 25
Dependent Claim
22 words
A method according to claim 2 , where the mixture comprises about 25, mol % to 50, mol % of the tetraalkoxysilane.
Claim 26
Dependent Claim
14 words
A method according to claim 2 , were the tetraalkoxysilane is tetramethoxysilane or tetraethoxysilane.
Claim 27
Dependent Claim
22 words
A method according to claim 2 , where the mixture comprises about 15, mol % to 40, mol % of the organosilane.
Claim 28
Dependent Claim
20 words
A method according to claim 2 , where X is an alkoxy group comprising 1, to about 6, carbon atoms.
Claim 29
Dependent Claim
23 words
A method according to claim 2 , where R 4 , is selected from the group consisting of methyl, ethyl, propyl, and phenyl.
Claim 30
Dependent Claim
22 words
A method according to claim 2 , where the mixture comprises about 15, mol % to 40, mol % of the organotrialkoxysilane.
Claim 31
Dependent Claim
23 words
A method according to claim 2 , where R 2 , is a linear alkyl group comprising about 8, to 24, carbon atoms.
Claim 32
Dependent Claim
23 words
A method according to claim 2 , where R 2 , is a linear alkyl group comprising about 16, to 20, carbon atoms.
Claim 33
Dependent Claim
21 words
A method according to claim 2 , where the organotrialkoxysilane is selected from the group consisting of octyltriethoxysilane, octadecyltrimethoxysilane, and hexadecyltrimethoxysilane.
Claim 34
Dependent Claim
23 words
A method according to claim 2 , where the mixture comprises about 1.4, to 6, moles of water per mole of components (A)+(B)+(C).
Claim 35
Dependent Claim
23 words
A method according to claim 2 , where the mixture comprises about 2.5, to 4.5, moles of water per mole of components (A)+(B)+(C).
Claim 36
Dependent Claim
25 words
A method according to claim 2 , where the mixture comprises about 0.02, to 0.5, mole of the hydrolysis catalyst per mole of components (A)+(B)+(C).
Claim 37
Dependent Claim
27 words
A method according to claim 2 , where the mixture comprises about 0. 1, to 0. 3, moles of the hydrolysis catalyst per mole of components (A)+(B)+(C).
Claim 38
Dependent Claim
14 words
A method according to claim 2 , where the hydrolysis catalyst is hydrogen chloride.
Claim 39
Dependent Claim
25 words
A method according to claim 2 , where the mixture comprises about 70, to 95, weight percent of the organic solvent for the reaction product.
Claim 40
Dependent Claim
25 words
A method according to claim 2 , where the mixture comprises about 85, to 95, weight percent of the organic solvent for the reaction product.
Claim 41
Dependent Claim
36 words
A method according to claim 2 , where the reaction product comprising the silicone resin is neutralized and the silicone resin is dissolved in an organic solvent and 0.05, to 0.4, weight percent water is added.
Claim 42
Dependent Claim
36 words
A method according to claim 2 , where the reaction product comprising the silicone resin is neutralized and the silicone resin is dissolved in an organic solvent and 0.01, to 0.25, weight percent water is added.
Claim 43
Dependent Claim
61 words
A method according to claim 2 , where the reaction product comprising the silicone resin in an organic solvent is heated in the presence of an optional condensation catalyst at a temperature sufficient to effect condensation of the silicone resin to a weight average molecular weight of about 100,000, to 400,000, and the solvent solution of condensed silicone resin is neutralized.
Claim 44
Dependent Claim
51 words
A method according to claim 2 , where the reaction product comprising the silicone resin in an organic solvent is heated in the presence of an optional condensation catalyst at a temperature sufficient to effect condensation of the silicone resin to a weight average molecular weight of about 150,000, to 250,000.
References Cited (Backward Citations)
US3615272A
Cited
US4756977A
Cited
US5776900A
Cited
US5656204A
Cited
US5494859A
Cited
US5800926A
Cited
JPH10287746A
Cited
WO1998047945A1
Cited
WO1998049721A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-05-14 | 2004-11-13 | 2005-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-05-14 | 2008-11-13 | 2009-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-05-14 | 2012-11-13 | 2013-05-15 | $7700.00 | Window Closed / Lapsed |