US4248936A
Expired / Lapsed
US
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Asphalt-coated glass fibers
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1979-05-29
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Granted: 1981-02-03
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Expires: 1999-05-29
Abstract
Abstract Glass fibers, either in the form of individual filaments or bundles or glass fibers, which have been coated with a chemically-modified asphalt prepared by reacting a bituminous material with an organo silicon compound in which the organic group attached to the silicon atom contains a functional group reactive with the bitumen. The coated fibers can be used as reinforcement for bitumen or bitumen plus aggregate to securely tie the glass fiber surfaces to the bitumen.
Inventors
- 👤 Alfred Marzocchi
- 👤 Michael C. Roberts
- 👤 Charles E. Bolen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:19
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C10; C10C; C10C3/00; C10C3/02; C10C3/026; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962; Y10T428/2964; Y10T428/2967; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31815
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
51 words
Glass fibers having a coating thereon, said coating comprising the reaction product of bitumen and an organo silicon compound containing at least one organic group bonded to the silicon atom, with the organic group being substituted with a functional group reactive with the bitumen, and at least one readily hydrolyzable group.
Claim 2
Dependent Claim
51 words
Glass fibers having a coating thereon, said coating comprising the reaction product of bitumen and an organo silicon compound containing at least one organic group bonded to the silicon atom, with the organic group being substituted with a functional group reactive with the bitumen, and at least one readily hydrolyzable group.
Claim 3
Dependent Claim
25 words
Glass fibers as defined in claim 1 wherein the coating is in the form of a thin film coating on the individual glass fiber filaments.
Claim 4
Dependent Claim
30 words
Glass fibers as defined in claim 1 wherein the glass fibers are in the form of bundles and the coating is in the form of an impregnant in the bundle.
Claim 5
Dependent Claim
23 words
Glass fibers as defined in claim 3 wherein the impregnant substantially fills the interstices between the individual glass fiber filaments forming the bundle.
Claim 6
Dependent Claim
26 words
Glass fibers as defined in claim 3 wherein the individual glass fiber filaments forming the bundle contain a thin film size coating on the surfaces thereof.
Claim 7
Dependent Claim
16 words
Glass fibers as defined in claim 1 wherein the organo silicon compound is an organo silane.
Claim 8
Dependent Claim
114 words
Glass fibers as defined in claim 1 wherein the organo silicon compound is selected from the group consisting of an organo silane having the general formula: ##STR4## wherein Q is a functional group selected from the group consisting of an amino group, a hydroxy group, a halogen atom, an epoxy group, and a mercapto group; b is an integer ranging from 2 to 6; X is O or NH; c is an integer from 1 to 6; d is 0 or an integer from 1 to 5; Z is a readily hydrolyzable group; and, R 1 and R 2 are each non-hydrolyzable organic groups or a readily hydrolyzable group and the hydrolysis products thereof.
Claim 9
Dependent Claim
32 words
Glass fibers as defined in claim 1 wherein the coating is present in an amount sufficient to constitute from 0.1 to 40% by weight based upon the weight of the glass fibers.
Claim 10
Dependent Claim
47 words
Glass fibers as defined in claim 1 wherein the glass fibers are in the form of bundles, with the coating constituting an impregnant in the bundle and being present in an amount from 10 to 60% by weight base upon the weight of the glass fiber bundles.
Claim 11
Dependent Claim
13 words
Glass fibers as defined in claim 1 wherein the bitumen is an asphalt.
Claim 12
Dependent Claim
54 words
Natural or synthetic fibers having a coating thereon, said coating comprising the reaction product of the bitumen and an organo silicon compound containing at least one organic group bonded to the silicon atom, with the organic group being substitued with a functional group reactive with the bitumen, and at least one readily hydrolyzable group.
Claim 13
Dependent Claim
54 words
Natural or synthetic fibers having a coating thereon, said coating comprising the reaction product of the bitumen and an organo silicon compound containing at least one organic group bonded to the silicon atom, with the organic group being substitued with a functional group reactive with the bitumen, and at least one readily hydrolyzable group.
Claim 14
Dependent Claim
11 words
Fibers as defined in claim 11 wherein the fibers are hydrophilic.
Claim 15
Dependent Claim
25 words
A glass fiber reinforced composite comprising a bitumen as a continuous phase and, as reinforcement in the bitumen, glass fibers as defined in claim 1.
Claim 16
Dependent Claim
25 words
A composite as defined in claim 13 wherein the coating is in the form of a thin film coating on the individual glass fiber filaments.
Claim 17
Dependent Claim
30 words
A composite as defined in claim 13 wherein the glass fibers are in the form of bundles and the coating is in the form of an impregnant in the bundle.
Claim 18
Dependent Claim
26 words
A composite as defined in claim 13 wherein the individual glass fiber filaments forming the bundle contain a thin film size coating on the surfaces thereof.
Claim 19
Dependent Claim
16 words
A composite as defined in claim 13 wherein the organo silicon compound is an organo silane.
Claim 20
Dependent Claim
114 words
A composite as defined in claim 13 wherein the organo silicon compound is selected from the group consisting of an organo silane having the general formula: ##STR5## wherein Q is a functional group selected from the group consisting of an amino group, a hydroxy group, a halogen atom, an epoxy group, and a mercapto group; b is an integer ranging from 2 to 6; X is O or NH; c is an integer from 1 to 6; d is 0 or an integer from 1 to 5; Z is a readily hydrolyzable group; and, R 1 and R 2 are each non-hydrolyzable organic groups or a readily hydrolyzable group and the hydrolysis products thereof.
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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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |