US4489131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Size for glass fibers
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1984-01-19
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Granted: 1984-12-18
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Expires: 2004-01-19
Abstract
Abstract A size for glass fibers is disclosed, the size comprising an oxidized polyolefin, a polymeric film former and an organic acid, preferably terephthalic acid or isophthalic acid.
Inventors
- 👤 Denny E. Black
- 👤 David W. Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:51
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/28; C03C25/30; C08; C08K; C08K5/00; C08K5/04; C08K5/09; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2962; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
A glass fiber sized with a size comprising a polyolefin latex, an amino silane, a polymeric film former and an organic acid selected from the group consisting of substituted benzoic acids, benzenedicarboxylic acids, benzenetricarboxylic acids, benzenetetracarboxylic acids, benzenepentacarboxylic acids, benzenehexacarboxylic acids, cyclohexanedicarboxylic acid, fatty acids, aliphatic diacids, aliphatic polyacids, cinnamic acids, benzenediacrylic acids, benzenediacetic acids, naphthoic acids, naphthalenedicarboxylic acids, naphthalenedisulfonic acids and anhydrides of the aforesaid acids said acid or acids being added in an amount sufficient to improve the impact strength of injected molded polypropylene into which glass fibers, coated with said size, are incorporated.
Claim 2
Dependent Claim
96 words
A glass fiber sized with a size comprising a polyolefin latex, an amino silane, a polymeric film former and an organic acid selected from the group consisting of substituted benzoic acids, benzenedicarboxylic acids, benzenetricarboxylic acids, benzenetetracarboxylic acids, benzenepentacarboxylic acids, benzenehexacarboxylic acids, cyclohexanedicarboxylic acid, fatty acids, aliphatic diacids, aliphatic polyacids, cinnamic acids, benzenediacrylic acids, benzenediacetic acids, naphthoic acids, naphthalenedicarboxylic acids, naphthalenedisulfonic acids and anhydrides of the aforesaid acids said acid or acids being added in an amount sufficient to improve the impact strength of injected molded polypropylene into which glass fibers, coated with said size, are incorporated.
Claim 3
Dependent Claim
10 words
A glass fiber sized with the size of claim 1.
Claim 4
Dependent Claim
15 words
A composite comprising a polymer reinforced with glass sized with the size of claim 1.
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) | 1987-12-18 | 1988-06-18 | 1988-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-18 | 1992-06-18 | 1992-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-18 | 1996-06-18 | 1996-12-18 | $7700.00 | Window Closed / Lapsed |