US3837897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber reinforced elastomers
Assignee: Owens Corning
•
Filing: 1972-05-04
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Granted: 1974-09-24
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Expires: 1992-05-04
Abstract
Abstract Improvements in the bonding relationship between glass fibers and elastomeric materials wherein glass fibers are treated with a composition containing as the essential component a copolymer of an amino silane and a resorcinolato silane. Alternatively, the glass fibers can also be treated with a composition formulated of an elastomer and a resorcinol formaldehyde resin prepared in the presence of a copolymer of an amino silane and a resorcinolato silane. The resulting composition and glass fibers treated therewith are used for reinforcement of elastomeric materials.
Inventors
- 👤 A Marzocchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:55
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/27; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
13 words
Glass fibers as defined in claim 1 wherein the coating includes a binder.
Claim 2
Dependent Claim
17 words
Glass fibers as defined in claim 1 wherein the coating includes a resorcinol-aldehyde resin and an elastomer.
Claim 3
Dependent Claim
106 words
A glass fiber bundle comprising a pLurality of glass fibers and an impregnant in the bundles, the impregnant comprising a resorcinol aldehyde resin, an elastomer and a copolymer of 30 to 90 mole percent of an amino silane containing 1 to 3 readily hydrolyzable groups and at least one organic group having 2 to 10 carbon atoms which is substituted by at least one amino group, with the organic group bonded directly to the silicon atom, with any remaining valences being taken up by hydrogen, and 10 to 70 mole percent of a resorcinolato silane selected from the group consisting of a silane of the formula
Claim 4
Dependent Claim
26 words
A glass fiber bundle as defined in claim 4 wherein the individual glass fibers forming the bundle have a size coating on the individual surfaces thereof.
Claim 5
Dependent Claim
25 words
A glass fiber bundle as defined in claim 4 wherein the glass fiber bundle is in the form of a plurality of strands plied together.
Claim 6
Dependent Claim
17 words
A glass fiber bundle as defined in claim 6 wherein the strands are plied and twisted together.
Claim 7
Dependent Claim
121 words
In a glass fiber bundle formed of a plurality of glass fibers containing an impregnant in the bundle comprising a resorcinol-aldehyde resin and an elastomer, the improvement comprising a thin coating on the surfaces of the individual glass fibers formed from a copolymer of 30 to 90 mole percent of an amino silane containing 1 to 3 readily hydrolyzable groups and at least one organic group having 2 to 10 carbon atoms which is substituted by at least one amino group, with the organic group bonded directly to the silicon atom, with any remaining valences being taken up by hydrogen and 10 to 70 mole percent of a resorcinolato silane selected from the group consisting of a silane of the formula
Claim 8
Dependent Claim
18 words
A glass fiber bundle as defined in claim 8 wherein the coating includes a lubricant and/or a binder.
Claim 9
Dependent Claim
25 words
A glass fiber bundle as defined in claim 8 wherein the glass fiber bundle is in the form of a plurality of strands plied together.
Claim 10
Dependent Claim
17 words
A glass fiber bundle as defined in claim 10 wherein the strands are plied and twisted together.
Claim 11
Dependent Claim
125 words
In a glass fiber-reinforced elastomeric product in which an elastomeric material constitutes a continuous phase in which the glass fibers are distributed, the improvement in the bonding relationship between the glass fibers and the elastomeric material comprising a coating on the glass fibers formed from a copolymer of 30 to 90 mole percent of an amino silane containing 1 to 3 readily hydrolyzable groups and at least one organic group having 2 to 10 carbon atoms which is substituted by at least one amino group, with the organic group bonded directly to the silicon atom, with any remaining valences being taken up by hydrogen, and 10 to 70 mole percent of a resorcinolato silane selected from the group consisting of a silane of the formula
Claim 12
Dependent Claim
32 words
An elastomeric product as defined in claim 12 wherein the glass fibers are in the foRm of filaments and the coating constitutes a coating on the surfaces of the individual fiber filaments.
Claim 13
Dependent Claim
39 words
An elastomeric product as defined in claim 12 wherein the glass fibers are in the form of bundles of glass fibers, with the coating being an impregnant in the bundle and also containing a resorcinol-aldehyde resin and an elastomer.
Claim 14
Dependent Claim
20 words
An elastomeric product as defined in claim 14 wherein the bundles are formed of strands of glass fibers plied together.
Claim 15
Dependent Claim
16 words
An elastomeric product as defined in claim 15 where the strands are plied and twisted together.
Claim 16
Dependent Claim
47 words
An elastomeric product as defined in claim 12 wherein the glass fibers are in the form of bundles of glass fibers containing an impregnant therein, said impregnant comprising a resorcinol-aldehyde resin and an elastomer, with the coating being a size coating on the individual glass fiber surfaces.
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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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |