US3837898A
Expired / Lapsed
US
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Glass fiber size composition
Assignee: Owens Corning
•
Filing: 1972-06-19
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Granted: 1974-09-24
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Expires: 1992-06-19
Abstract
Abstract This invention is addressed to an improved size composition for use in the treatment of glass fibers in the manufacture of glass fiber textiles, glass fiber reinforced plastics and glass fiber reinforced elastomeric products wherein the size is formulated to contain, as the essential ingredients, a polybutadiene, and preferably a low-molecular weight polybutadiene, and a glass fiber anchoring agent. Bundles of glass fibers sized with the composition of the invention are particularly well suited for impregnation with an elastomer compatible material containing a resorcinol-aldehyde resin component and an elastomer component for use in the manufacture of glass fiber reinforced elastomeric products. In one embodiment, the glass fiber anchoring agent is a mixture of a polyamino silane and hyrolyzable amino-substituted akyl silane. The composition may also contain a polymerizable alkenyl aromatic compound, a heat activated free radical intiator, a thixotropic gel agent, a poly-alpha-olefin or a glass fiber lubricant.
Inventors
- 👤 Combs F Mc
- 👤 M Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:18
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: 25
Claim 1
Independent Claim
17 words
Glass fibers as defined in claim 1 wherein the coating also includes a polymerizable alkenyl aromatic compound.
Claim 2
Dependent Claim
17 words
Glass fibers as defined in claim 1 wherein the coating also includes a heat-activated free radical initiator.
Claim 3
Dependent Claim
16 words
Glass fibers as defined in claim 1 wherein the coating also includes a thixotropic gel agent.
Claim 4
Dependent Claim
14 words
Glass fibers as defined in claim 1 wherein the coating also includes a poly-alpha-olefin.
Claim 5
Dependent Claim
16 words
Glass fibers as defined in claim 1 wherein the coating also includes a glass fiber lubricant.
Claim 6
Dependent Claim
106 words
A glass fiber bundle comprising a plurality of glass fibers, each of said fibers having a thin film coating on the individual surfaces thereof, said coating consisting essentially of a mixture of 5 to 30 parts by weight of a polybutadiene having an average molecular weight within the range of 500 to 5000 and 1 to 15 parts by weight of an organo silicon compound in the form of a mixture of (1) a silane of the formula Z3Si - (CH2)w - NH2 wherein Z is a lower alkoxy group and w is an integer from 2 to 5, and (2) a compound having the formula
Claim 7
Dependent Claim
17 words
A bundle as defined in claim 7 wherein the coating also includes a polymerizable alkenyl aromatic compound.
Claim 8
Dependent Claim
17 words
A bundle as defined in claim 7 wherein the coating also includes a heat-activated free radical initiator.
Claim 9
Dependent Claim
16 words
A bundle as defined in claim 7 wherein the coating also includes a thixotropic gel agent.
Claim 10
Dependent Claim
14 words
A bundle as defined in claim 7 wherein the coating also includes a poly-alpha-olefin.
Claim 11
Dependent Claim
16 words
A bundle as defined in claim 7 wherein the coating also includes a glass fiber lubricant.
Claim 12
Dependent Claim
106 words
A glass fiber bundle comprising a plurality of glass fibers, each of said fibers having a thin film coating on the individual surfaces thereof, said coating consisting essentially of a mixture of 5 to 30 parts by weight of a polybutadiene having an average molecular weight within the range of 500 to 5000 and 1 to 15 parts by weight of an organo silicon compound in the form of a mixture of (1) a silane of the formula Z3Si - (CH2)w - NH2 wherein Z is a lower alkoxy group and w is an integer from 2 to 5, and (2) a compound having the formula
Claim 13
Dependent Claim
28 words
A glass fiber bundle as defined in claim 13 wherein the fibers forming the bundle are in the form of strands which have been plied and twisted together.
Claim 14
Dependent Claim
126 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 comprising a coating on the individual glass fibers, said coating consisting essentially of a mixture of 5 to 30 parts by weight of a polybutadiene having an average molecular weight within the range of 500 to 5000 and 1 to 15 parts by weight of an organo silicon compound in the form of a mixture of (1) a silane of the formula Z3Si - (CH2)w - NH2 wherein Z is a lower alkoxy group and w is an integer from 2 to 5, and (2) a compound having the formula
Claim 15
Dependent Claim
22 words
In a glass fiber reinforced elastomeric product as defined in claim 15 wherein the coating also includes a polymerizable alkenyl aromatic compound.
Claim 16
Dependent Claim
22 words
In a glass fiber reinforced elastomeric product as defined in claim 15 wherein the coating also includes a heat-activated free radical initiator.
Claim 17
Dependent Claim
21 words
In a glass fiber reinforced elastomeric product as defined in claim 15 wherein the coating also includes a thixotropic gel agent.
Claim 18
Dependent Claim
19 words
In a glass fiber reinforced elastomeric product as defined in claim 15 wherein the coating also includes a poly-alpha-olefin.
Claim 19
Dependent Claim
21 words
In a glass fiber reinforced elastomeric product as defined in claim 15 wherein the coating also includes a glass fiber lubricant.
Claim 20
Dependent Claim
138 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 comprising bundles of glass fibers, each of the glass fibers having a thin size coating on the individual surfaces thereof, said coating consisting essentially of a mixture of 5 to 30 parts by weight of a polybutadiene having an average molecular weight within the range of 500 to 5000 and 1 to 15 parts by weight of an organo silicon compound in the form of a mixture of (1) a silane of the formula Z3Si - (CH2)w - NH2 wherein Z is a lower alkoxy group and w is an integer from 2 to 5, and (2) a compound having the formula
Claim 21
Dependent Claim
22 words
In a glass fiber reinforced elastomeric product as defined in claim 21 wherein the coating also includes a polymerizable alkenyl aromatic compound.
Claim 22
Dependent Claim
22 words
In a glass fiber reinforced elastomeric product as defined in claim 21 wherein the coating also includes a heat-activated free radical initiator.
Claim 23
Dependent Claim
21 words
In a glass fiber reinforced elastomeric product as defined in claim 21 wherein the coating also includes a thixotropic gel agent.
Claim 24
Dependent Claim
19 words
In a glass fiber reinforced elastomeric product as defined in claim 21 wherein the coating also includes a poly-alpha-olefin.
Claim 25
Dependent Claim
59 words
In a glass fiber reinforced elastomeric product as defined in claim 21 wherein the impregnant comprises 2 to 10 parts by weight of a resorcinol-aldehyde resin, 20 to 60 parts by weight of a vinyl-pyridine butadiene-styrene terpolymer, 15 to 40 parts by weight of a dicarboxylated butadiene-styrene resin and 3 to 30 parts by weight of a microcrystalline wax.
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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 |