Patent US4246145A successfully refreshed from Google Patents.
US4246145A
Expired / Lapsed
US
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Aqueous size for glass fibers
Assignee: Saint Gobain Industries SA
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Filing: 1978-01-18
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Granted: 1981-01-20
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Expires: 1998-01-18
Abstract
Abstract A glass fiber sizing composition for the reinforcement of resin matrices which comprises one or more adhesive agents, non-ionic lubricants, organo-silanes, and cationic lubricants as well as a coadhesive such as gelatin, another silane or some sort of glass-resin binding agent and demineralized water as a complement. The organo-silanes are from the group comprising the organo-silanes containing an organic chain of the polyazamide type and the organo-silanes whose organic chain contains at least one phenyl radical and at least two secondary or tertiary amine groups. The addition of the organo-silanes to the sizing composition improves the tensile strength of the sized strands. These organo-silanes are good organic glass-resin binding agents and their presence decreases the risk of rupture of the strands during the winding operation.
Inventors
- 👤 Jacques Molinier
- 👤 Jacques Mahler
- 👤 Gilbert Bocquet
- 👤 Bernard de Massey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:55
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/40; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
136 words
Aqueous sizing for coating glass fibers to be used for reenforcing thermoplastic and/or thermoset resins, characterized in that it comprises: 0.5 to 15% by weight of at least one adhesive agent, 0.1 to 2% by weight of at least one organo-silane of the formulas, ##STR11## in which x/y is 0.5 to 15; n is 2 to 6; R is methoxy, ethoxy, propoxy, n-butoxy or β-methoxyethoxy radical, R 1 and R 3 are divalent alkylene radicals containing 1 to 3 carbon atoms, and R 2 represents a substituted or non-substituted divalent cycloaliphatic, aromatic or aliphatic radical, ##STR12## in which n is 2 to 6; m is 1 to 10 R is a methoxy, ethoxy, propoxy, n-butoxy or β-methoxyethoxy radical, 0to 7% by weight of lubricant(s), and 0 to 2% by weight of an organic glass-resin binding agent.
Claim 2
Dependent Claim
136 words
Aqueous sizing for coating glass fibers to be used for reenforcing thermoplastic and/or thermoset resins, characterized in that it comprises: 0.5 to 15% by weight of at least one adhesive agent, 0.1 to 2% by weight of at least one organo-silane of the formulas, ##STR11## in which x/y is 0.5 to 15; n is 2 to 6; R is methoxy, ethoxy, propoxy, n-butoxy or β-methoxyethoxy radical, R 1 and R 3 are divalent alkylene radicals containing 1 to 3 carbon atoms, and R 2 represents a substituted or non-substituted divalent cycloaliphatic, aromatic or aliphatic radical, ##STR12## in which n is 2 to 6; m is 1 to 10 R is a methoxy, ethoxy, propoxy, n-butoxy or β-methoxyethoxy radical, 0to 7% by weight of lubricant(s), and 0 to 2% by weight of an organic glass-resin binding agent.
Claim 3
Dependent Claim
49 words
Aqueous sizing for coating glass fibers to be used to reenforce thermoplastic and/or thermoset resins according to claim 1, characterized in that it comprises: 1 to 10% by weight as an adhesive agent of an acrylic polymer, a polyvinyl acetate, an epoxy resin, a polyester resin, or a polyurethane,
Claim 4
Dependent Claim
24 words
5 to 5% by weight of non-ionic lubricant(s), and 0.1 to 2% by weight of at least one organo-silane of the general formula A.
Claim 5
Dependent Claim
24 words
5 to 5% by weight of non-ionic lubricant(s), and 0.1 to 2% by weight of at least one organo-silane of the general formula A.
Claim 6
Dependent Claim
77 words
Aqueous sizing for coating glass fibers to be used for reenforcing thermoplastic and/or thermoset resins according to claim 1, characterized in that it comprises: 1 to 10% by weight of at least one adhesive agent such as an acrylic polymer, a polyvinyl acetate, an epoxy resin, a polyesyter resin or a polyurethane, 0.05 to 5% by weight of non-ionic lubricant(s), 0.1 to 2% by weight of at least one organo-silane of the general formulas B and C.
Claim 7
Dependent Claim
56 words
Aqueous sizing for glass fibers to be used for reenforcing plastic materials according to claim 1, characterized in that it contains at the most up to 3% of a co-adhesive such as gelatin, up to 5% of at least one cationic lubricant, and up to 2% of an organic glass-resin binding agent such as another organo-silane.
Claim 8
Dependent Claim
23 words
Aqueous sizing according to claim 1, characterized in that one of the amine groups of the organo-silane is in the form of hydrochlorate.
Claim 9
Dependent Claim
45 words
Aqueous sizing according to claim 1, characterized in that it contains at least one of the organo-silanes with the general formulas: ##STR13## in which: n is 2 to 6, m is 1 to 10 and R is a methoxy, ethoxy, propoxy, n-butoxy or β-methoxyethoxy radical.
Claim 10
Dependent Claim
39 words
Aqueous sizing for coating glass fibers according to claim 1, characterized in that it contains at least one of the following formulas: ##STR14## in which n=2 or 3 and m is 1 to 4, preferably with n=2 and m=3.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |