US6025077A
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US
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Silicone emulsion coating composition and processes for the preparation thereof
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1997-12-12
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Granted: 2000-02-15
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Expires: 2017-12-12
Abstract
Abstract A composition of the present invention comprises organosiloxane partial hydrolyzate represented by a formula R 2 a SiO b (OR 1 ) c (OH) d and having a weight-average molecular weight of 600-5,000 in polystylene conversion, (B) colloidal silica, (C) emulsifying agent and (D) water. Its manufacturing method comprises, for example, a step of mixing the mixed (A), (B) and (D) constituents with the (C) constituent, whereby the composition of silicone emulsion coating material which is stable as an emulsion for a long term and capable of being hardened at low temperatures and as heated and forming a hardened film excellent in the weatherability, durability and so on, as well as its manufacturing method can be provided.
Inventors
- 👤 Takeyuki Yamaki
- 👤 Minoru Inoue
- 👤 Kazuo Seto
- 👤 Hideya Ariga
- 👤 Akihiko Ohashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:16
CPC Classifications
C; C09; C09D; C09D183/00; C09D183/04; C09D183/06; C08; C08L; C08L33/00; C08L33/04; C08L33/14; C08L75/00; C08L75/04; C08L75/14; C09D5/00; C09D5/02; C09D5/022; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
86 words
A composition of silicone emulsion coating material comprising following (A), (B), (C) and (D) constituents: (A) organosiloxane partial hydrolyzate represented by an average composition formula of R 2 a SiO b (OR 1 ) c (OH) d (wherein R 1 and R 2 denote monovalent hydrocarbon radicals and a, b, c and d are figures satisfying the relationship of a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 and 0<d<4) and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) an emulsifying agent; and (D) water.
Claim 2
Dependent Claim
86 words
A composition of silicone emulsion coating material comprising following (A), (B), (C) and (D) constituents: (A) organosiloxane partial hydrolyzate represented by an average composition formula of R 2 a SiO b (OR 1 ) c (OH) d (wherein R 1 and R 2 denote monovalent hydrocarbon radicals and a, b, c and d are figures satisfying the relationship of a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 and 0<d<4) and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) an emulsifying agent; and (D) water.
Claim 3
Dependent Claim
29 words
The composition as set forth in claim 1, wherein the (B) constituent has a silica component at a ratio of 5-100 wt. % with respect to the (A) constituent.
Claim 4
Dependent Claim
35 words
The composition as set forth in claim 1, wherein the (D) constituent is of a content at a ratio of 50-90 wt. % in the total weight of the composition of silicone emulsion coating material.
Claim 5
Dependent Claim
16 words
The composition as set forth in claim 1, which further comprises nonionic urethane acryl block copolymer.
Claim 6
Dependent Claim
43 words
The composition as set forth in claim 4, wherein nonionic urethane acryl block copolymer is of a content at a ratio of 0.1-10 wt. % with respect to the sum weight of the (A) constituent and the silica component in the (B) constituent.
Claim 7
Dependent Claim
13 words
The composition as set forth in claim 1 which further comprises a pigment.
Claim 8
Dependent Claim
53 words
The composition as set forth in claim 1 which further comprises a following (E) constituent: (E) a straight-chain polysiloxane diol containing hydroxyl groups at both ends and represented by general formula HO(R 3 2 SiO) n H, wherein R 3 denotes monovalent hydrocarbon radical and n is an integer of at least 3.
Claim 9
Dependent Claim
31 words
The composition as set forth in claim 7 wherein n in the general formula representing the straight-chain polysiloxane diol containing hydroxyl radicals at both ends is in a range of 3≦n≦50.
Claim 10
Dependent Claim
41 words
The composition as set forth in claim 7 wherein the (E) constituent is of a content at a ratio of 1-50 wt. % with respect to the sum weight of the (A) constituent and the silica component in the (B) constituent.
Claim 11
Independent Claim
161 words
A method for manufacturing a composition of silicone emulsion coating material, comprising the steps of obtaining a mixture containing the following (A) and (B) constituents by mixing hydrolyzing organosilane represented by a general formula R 2 n Si(OR 1 ) 4-n , wherein R 1 and R 2 denote monovalent hydrocarbon radicals and n is an integer of 0-3, acidic colloidal silica and the following (D) constituent; and mixing the obtained mixture with at least the following (C) constituent among the (C) constituent and an additional portion of the D constituent: (A) organosiloxane partial hydrolyzate represented by an average composition formula of R 2 a SiO b (OR 1 ) c (OH) d , wherein R 1 and R 2 denote monovalent hydrocarbon radicals and a, b, c and d are figures satisfying the relationship a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 and 0<d<4 and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) emulsifying agent; and (D) water.
Claim 12
Independent Claim
161 words
A method for manufacturing a composition of silicone emulsion coating material, comprising the steps of obtaining a mixture containing the following (A) and (B) constituents by mixing hydrolyzing organosilane represented by a general formula R 2 n Si(OR 1 ) 4-n , wherein R 1 and R 2 denote monovalent hydrocarbon radicals and n is an integer of 0-3, acidic colloidal silica and the following (D) constituent; and mixing the obtained mixture with at least the following (C) constituent among the (C) constituent and an additional portion of the D constituent: (A) organosiloxane partial hydrolyzate represented by an average composition formula of R 2 a SiO b (OR 1 ) c (OH) d , wherein R 1 and R 2 denote monovalent hydrocarbon radicals and a, b, c and d are figures satisfying the relationship a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 and 0<d<4 and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) emulsifying agent; and (D) water.
Claim 13
Dependent Claim
47 words
The method as set forth in claim 10 wherein the (D) constituent used in mixing the hydrolyzing organosilane, acidic colloidal silica and (D) constituent is in an amount at a ratio of 0.3-2.0 mol per 1 mol equivalent weight of OR 1 radical in the hydrolyzing organosilane.
Claim 14
Independent Claim
120 words
A method for manufacturing a composition of silicone emulsion coating material, comprising the steps of obtaining a desolvated substance by desolvating an organic solvent from a mixture of the following (A) and (B) constituents containing the organic solvent, and mixing the desolvated substance with the following (C) and (D) constituents: (A) organosiloxane partial hydrolyzate represented by an average composition formula R 2 a SiO b (OR 1 ) c (OH) d , wherein R 1 and R 2 denote monovalent hydrocarbon radicals, and a, b, c and d are figures satisfying the relationship of a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 and 0<d<4 and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) emulsifying agent; and (D) water.
Claim 15
Independent Claim
120 words
A method for manufacturing a composition of silicone emulsion coating material, comprising the steps of obtaining a desolvated substance by desolvating an organic solvent from a mixture of the following (A) and (B) constituents containing the organic solvent, and mixing the desolvated substance with the following (C) and (D) constituents: (A) organosiloxane partial hydrolyzate represented by an average composition formula R 2 a SiO b (OR 1 ) c (OH) d , wherein R 1 and R 2 denote monovalent hydrocarbon radicals, and a, b, c and d are figures satisfying the relationship of a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 and 0<d<4 and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) emulsifying agent; and (D) water.
Claim 16
Dependent Claim
36 words
The method as set forth in claim 10 or 12 which further comprises the steps of obtaining a pigment base by mixing nonionic urethane acryl block copolymer, (D) constituent and pigment, and adding the pigment base.
Claim 17
Dependent Claim
96 words
A coated article having an applied and hardened film of a composition of silicone emulsion coating material consisting of following (A), (B), (C) and (D) constituents: (A) organosiloxane partial hydrolyzate represented by an average composition formula R 2 a SiO b (OR 1 ) c (OH) d , wherein R 1 and R 2 denote monovalent hydrocarbon radicals, and a, b, c and d are figures satisfying the relationship of a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 ad 0<d<4 and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) emulsifying agent; and (D) water.
Claim 18
Dependent Claim
96 words
A coated article having an applied and hardened film of a composition of silicone emulsion coating material consisting of following (A), (B), (C) and (D) constituents: (A) organosiloxane partial hydrolyzate represented by an average composition formula R 2 a SiO b (OR 1 ) c (OH) d , wherein R 1 and R 2 denote monovalent hydrocarbon radicals, and a, b, c and d are figures satisfying the relationship of a+2b+c+d=4, 0≦a<3, 0<b<2, 0<c<4 ad 0<d<4 and having a weight-average molecular weight of 600-5,000 in polystyrene conversion; (B) colloidal silica; (C) emulsifying agent; and (D) water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2003-02-14 | 2003-08-16 | 2004-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-14 | 2007-08-16 | 2008-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-14 | 2011-08-16 | 2012-02-15 | $7700.00 | Window Closed / Lapsed |