US4239800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber coating composition
Assignee: PPG Industries Inc
•
Filing: 1979-01-31
•
Granted: 1980-12-16
•
Expires: 1999-01-31
Abstract
Abstract Glass fiber filament bundles such as cords for rubber reinforcement are impregnated and coated with a coating composition comprised of, in parts by weight on a dry solids basis: ______________________________________ 10-50 neoprene latex 50-90 styrene-butadiene vinylpyridine latex 4-20 resorcinol formaldehyde resin 2-6 resorcinol 1-3 formaldehyde up to 25 wax up to 25 natural rubber ______________________________________ Glass fiber cord, produced from strands and filaments, in accordance with the invention, provides an improved reinforcing member for elastomeric articles such as tires and particularly for radial tires. A method of coating the glass fibers and forming the cord from the individual filaments and strands is also disclosed.
Inventors
- 👤 Mikhail M. Girgis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:29
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J5/08; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C08J2321/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2929; Y10T428/2931; Y10T428/2933; Y10T428/294; Y10T428/2958; Y10T428/2964
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
97 words
In the method of preparing a glass fiber tire cord comprising: drawing a plurality of filaments from a fiber-forming bushing, gathering the filaments into strands, gathering said strands to form a cord and twisting said cord, coating the cord with an aqueous coating composition, the improvement comprising said coating composition comprised of in parts by weight on a dry solids basis and also the latex on the basis of 100 parts of total elastomer: 10-30 neoprene latex 70-90 styrene-butadiene-vinyl pyridine latex 4-20 resorcinol formaldehyde resin 2-6 resorcinol 1-3 formaldehyde and up to 1.5 parts of hexamethylene tetraamine.
Claim 2
Dependent Claim
97 words
In the method of preparing a glass fiber tire cord comprising: drawing a plurality of filaments from a fiber-forming bushing, gathering the filaments into strands, gathering said strands to form a cord and twisting said cord, coating the cord with an aqueous coating composition, the improvement comprising said coating composition comprised of in parts by weight on a dry solids basis and also the latex on the basis of 100 parts of total elastomer: 10-30 neoprene latex 70-90 styrene-butadiene-vinyl pyridine latex 4-20 resorcinol formaldehyde resin 2-6 resorcinol 1-3 formaldehyde and up to 1.5 parts of hexamethylene tetraamine.
Claim 3
Dependent Claim
30 words
The method of claim 1 wherein said coating composition has therein 0.1 to 1 part of a member selected from the group consisting of calcium and magnesium treated diatomaceous earths.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said coating composition is 20 to 40 percent by weight solids.
Claim 5
Dependent Claim
34 words
The method of claim 1 wherein said coating composition has therein up to 3 parts by weight of a member selected from the group consisting of zinc oxide, litharge, magnesium oxide, and red lead.
Claim 6
Dependent Claim
19 words
The method of claim 1 wherein said coating composition has therein up to 25 parts by weight of wax.
Claim 7
Dependent Claim
20 words
The method of claim 1 wherein said coating composition has therein up to 25 parts by weight of natural rubber.
Claim 8
Dependent Claim
58 words
A glass fiber tire cord having thereon the dried residue of an aqueous coating composition comprising in parts by weight on a dry solids basis and also the latex on the basis of 100 parts of total elastomer: 10-30 neoprene latex, 70-90 styrene-butadiene-vinyl-pyridine latex, 4-20 resorcinol formaldehyde resin, 2-6 resorcinol, 1-3 formaldehyde, and up to 1.5 hexamethylene tetramine.
Claim 9
Dependent Claim
58 words
A glass fiber tire cord having thereon the dried residue of an aqueous coating composition comprising in parts by weight on a dry solids basis and also the latex on the basis of 100 parts of total elastomer: 10-30 neoprene latex, 70-90 styrene-butadiene-vinyl-pyridine latex, 4-20 resorcinol formaldehyde resin, 2-6 resorcinol, 1-3 formaldehyde, and up to 1.5 hexamethylene tetramine.
Claim 10
Dependent Claim
31 words
The glass fiber tire cord of claim 7 having thereon 15 to 35 percent by weight of the dried residue of said coating composition based on the weight of said glass.
Claim 11
Dependent Claim
31 words
The glass fiber tire cord of claim 8 having thereon 30 to 35 percent by weight of the dried residue of said coating composition based on the weight of said glass.
Claim 12
Dependent Claim
17 words
The glass fiber tire cord of claim 7 being comprised of 5 to 15 glass fiber strands.
Claim 13
Dependent Claim
17 words
The glass fiber tire cord of claim 10 being comprised of 10 to 15 glass fiber strands.
Claim 14
Dependent Claim
35 words
A glass fiber tire cord of claim 7, wherein the resorcinol formaldehyde resin is present in an amount in the range of about 11 to about 20 parts by weight on a dry solids basis.
Claim 15
Dependent Claim
29 words
A glass fiber tire cord of claim 7, wherein the resorcinol formaldehyde resin has a mole ratio of 0.6 to 0.8 moles of formaldehyde to 1 mole of resorcinol.
Claim 16
Dependent Claim
48 words
A glass fiber tire cord having thereon the dried residue of an aqueous coating composition comprising in parts by weight on a dry solids basis: 25 neoprene latex, 75 styrene-butadiene-vinyl pyridine latex, 11 resorcinol-formaldehyde resin, 4 resorcinol, 1.7 formaldehyde, 5 wax, 1.2 zinc oxide and, 0.75 hexamethylene tetraamine.
Claim 17
Dependent Claim
48 words
A glass fiber tire cord having thereon the dried residue of an aqueous coating composition comprising in parts by weight on a dry solids basis: 25 neoprene latex, 75 styrene-butadiene-vinyl pyridine latex, 11 resorcinol-formaldehyde resin, 4 resorcinol, 1.7 formaldehyde, 5 wax, 1.2 zinc oxide and, 0.75 hexamethylene tetraamine.
Claim 18
Dependent Claim
31 words
The glass fiber tire cord of claim 14 having thereon 15 to 35 percent by weight of the dried residue of said coating composition based on the weight of said glass.
Claim 19
Dependent Claim
31 words
The glass fiber tire cord of claim 15 having thereon 30 to 35 percent by weight of the dried residue of said coating composition based on the weight of said glass.
References Cited (Backward Citations)
US2287700A
Cited
US2888377A
Cited
US3194294A
Cited
US3424608A
Cited
US3533830A
Cited
US3591357A
Cited
US3718449A
Cited
US3740257A
Cited
US3773546A
Cited
US3796627A
Cited
US3817775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |