US3862882A
Expired / Lapsed
US
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Glass fiber reinforced elastomers
Assignee: Owens Corning
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Filing: 1972-09-25
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Granted: 1975-01-28
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Expires: 1992-09-25
Abstract
Abstract This invention is addressed to the improvement in the bonding relationship between glass fibers and elastomeric materials wherein glass fibers are treated with a composition containing an amine-amide group which can be converted on heating to an isocyanate group which is capable of reaction with elastomeric materials or a resorcinol-aldehyde resin component of an impregnant to establish a chemical bond therebetween to tie the glass fibers to an elastomer or an elastomer compatible impregnant containing a resorcinol-aldehyde resin component.
Inventors
- 👤 Alfred Marzocchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:08
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/27; C08J2321/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518; Y10T428/31551; Y10T428/31623; Y10T428/31855; Y10T428/31859
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
27 words
A GLASS FIBER BUNDLE COMPRISING A PLURALITY OF GLASS FIBERS, AND AN IMPREGNANT IN THE BUNDLE, SAID IMPREGNANT COMPRISING A BLEND (1) AND AMINE-AMIDE HAVING THE FORMULA
Claim 2
Dependent Claim
27 words
A GLASS FIBER BUNDLE COMPRISING A PLURALITY OF GLASS FIBERS, AND AN IMPREGNANT IN THE BUNDLE, SAID IMPREGNANT COMPRISING A BLEND (1) AND AMINE-AMIDE HAVING THE FORMULA
Claim 3
Dependent Claim
61 words
A bundle as defined in claim 1 wherein the individual glass fibers forming the bundle have a thin coating on the surfaces thereof, said coating containing an organo silicon compound in which the organic group is substituted by at least one group selected from the group consisting of an epoxy group and a group containing at least one labile hydrogen atom.
Claim 4
Dependent Claim
36 words
A bundle as defined in claim 2, wherein the group is a group containing a labile hydrogen atom and is selected from the group consisting of an amino group, a hydroxy group and a mercapto group.
Claim 5
Dependent Claim
71 words
A bundle as defined in claim 2 wherein the organo silicon compound is an organo silane having the formula Z(4 n) Si(R3)n wherein Z is a readily hydrolyzable group, n is an integer from 1 to 3 and R3 is an organic group substituted by a group selected from the group consisting of an amino group, a hydroxy group, a mercapto group and an epoxy group, their corresponding silanols and polysiloxanes.
Claim 6
Dependent Claim
17 words
A bundle as defined in claim 1 wherein the amine-amide has been converted to the corresponding polyisocyanate.
Claim 7
Dependent Claim
68 words
In a glass fiber reinforced elastomeric product wherein 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 constituting the continuous phase comprising a bundle formed of a plurality of glass fibers, and an impregnant in the bundle, said impregnant comprising a blend of (1) an amine-amide having the formula
Claim 8
Dependent Claim
68 words
In a glass fiber reinforced elastomeric product wherein 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 constituting the continuous phase comprising a bundle formed of a plurality of glass fibers, and an impregnant in the bundle, said impregnant comprising a blend of (1) an amine-amide having the formula
Claim 9
Dependent Claim
61 words
A product as defined in claim 6 wherein the individual glass fibers forming the bundle have a thin coating on the surfaces thereof, said coating containing an organo silicon compound in which the organic group is substituted by at least one group selected from the group consisting of an epoxy group and a group containing at least one labile hydrogen atom.
Claim 10
Dependent Claim
71 words
A product as defined in claim 7 wherein the organo silicon compound is an organo silane having the formula Z(4 n) Si(R3)n wherein Z is a readily hydrolyzable group, n is an integer from 1 to 3 and R3 is an organic group substituted by a group selected from the group consisting of an amino group, a hydroxy group, a mercapto group and an epoxy group, their corresponding silanols and polysiloxanes.
Claim 11
Dependent Claim
19 words
A product as defined in claim 7 wherein the amine-amide has been converted by heating to the corresponding polyisocyanate.
Claim 12
Dependent Claim
98 words
In the method for the manufacture of glass fiber-reinforced elastomeric products wherein an elastomeric materiaL constitutes a continuous phase in which the glass fibers are distributed, the improvement in the bonding relationship between glass fibers and the elastomeric material constituting a continuous phase comprising coating the individual glass fibers with an organo silicon compound containing a group selected from the group consisting of an epoxy group and a group containing at least one labile hydrogen atom, forming the coated glass fibers into a bundle, impregnating the bundle with an aqueous composition containing (1) an amine-amide having the formula
Claim 13
Dependent Claim
98 words
In the method for the manufacture of glass fiber-reinforced elastomeric products wherein an elastomeric materiaL constitutes a continuous phase in which the glass fibers are distributed, the improvement in the bonding relationship between glass fibers and the elastomeric material constituting a continuous phase comprising coating the individual glass fibers with an organo silicon compound containing a group selected from the group consisting of an epoxy group and a group containing at least one labile hydrogen atom, forming the coated glass fibers into a bundle, impregnating the bundle with an aqueous composition containing (1) an amine-amide having the formula
Claim 14
Dependent Claim
24 words
The method as defined in claim 10 wherein the bundle is dried at a temperature sufficient to convert the amine-amide to the corresponding polyisocyanate.
Claim 15
Dependent Claim
63 words
The method as defined in claim 10 wherein the bundle is dried at a temperature below the temperature at which the amine-amide is converted to the corresponding polyisocyanate, and the method includes the steps of combining the bundles with an elastomeric material constituting a continuous phase and vulcanizing the resulting combination at a temperature sufficient to convert the amine-amide to the corresponding polyisocyanate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |