US3920596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing agent for glass fibers
Assignee: Kao Corp
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Filing: 1974-06-12
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Granted: 1975-11-18
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Expires: 1994-06-12
Abstract
Abstract A sizing agent composition comprising a film-forming material, a lubricant for glass fibers, a coupling agent and an antistatic agent, in which the film-forming material is an oil-in-water type emulsion of an unsaturated polyester obtained by reacting under heating (a) 1 mole of a dibasic acid component containing at least 50 mole percent of fumaric acid or maleic anhydride and (b) 1 to 1.5 moles of a diol component containing at least 30 mole percent of an adduct of 2 to 10 moles of an alkylene oxide to bisphenol A, with (c) an emulsifier selected from an adduct of 5 to 200 moles of an alkylene oxide to castor oil, an adduct of 5 to 200 moles of an alkylene oxide to hydrogenated castor oil and a polyethyleneglycol having an average molecular weight of 1000 to 6000, the amount of said emulsifier (c) being 5 to 30 parts by weight per 100 parts by weight of the sum of the polyester starting materials (a) and (b), and incorporating the resulting unsaturated polyester into water, and that the antistatic agent is a triethanolamine salt of an oxyacid of a metal selected from the group consisting of titanium, antimony, molybdenum, vanadium, aluminum, zinc, tin, germanium, zirconium, tungsten, boron and tellurium.
Inventors
- 👤 Jun-Ichi Furukawa
- 👤 Yoshinao Kono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:17
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/323; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2958; Y10T428/2964; Y10T442/00; Y10T442/20; Y10T442/2402
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
260 words
IN A SIZING AGENT COMPOSITION FOR GLASS FIBERS COMPRISING A FILM-FORMING MATERIAL, A LUBRICANT FOR GLASS FIBERS, A COUPLING AGENT FOR GLASS FIBERS AND AN ANTISTATIC AGENT, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS THE FILM-FORMING MATERIAL AN OIL-IN-WATER TYPE EMULSION OF AN UNSATURATED POLYESTER OBTAINED BY THE REACTION OF (A) 1 MOLE OF A DIBASIC ACID COMPONENT CONTAINING AT LEAST 50 MOLE PERCENT OF A MATERIAL SELCTED FROM THE GROUP CONSISTING OF FUMARIC ACID, MALEIC ANHYDRIDE AND MIXTURE THEREOF, (B) 1 TO 1.5 MOLES OF A DIOL COMPONENT CONTAINING AT LLAST 30 MOLE PERCENT OF AN ADDUCT OF 2 TO 10 MOLES OF AN ALKYLENE OXIDE TO BISPHENOL A, WITH (C) AN EMULSIFILER SELECTED FROM THE GROUP CONSISTING OF AN ADDUCT OF 5 TO 200 MOLES OF AN ALKYLENE OXIDE TO CASTOR OIL, AN ADDUCT OF 5 TO 200 MOLES OF AN ALKYLENE OXIDE TO HYDROGENATED CASTOR OIL AND POLYETHYLENE GLYCOL HAVING AN AVERAGE MOLCULAR WEIGHT OF 1000 TO 6000, THE AMOUNT OF SAID EMULSIFIER (C) BEING 5 TO 30 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF THE SUM OF THE POLYESTER STARTING MATERIALS (A) AND (B), AND INCORPORATING THE RESULTING UNSATURATED POLYESTER INTO WATER TOGETHER WITH AN ANTISTATIC AGENT, SAID ANTISTATIC AGENT BEING A TRIETHANOLAMINE SALT OF AN OXYACID OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ANTIMONY, MOLYBDENUM, VANADIUM, ALUMINUM, ZINC, TIN, GERMANIUM, ZIRCONIUM, TUNGESTEN, BORON AND TELURIU, THE COMPOSITION CONTAINING FROM 1 TO 10 PART BY WEIGHT OF SAID ANTISTATIC AGENT PER 100 PARTS BY EIGHT OF SAID EMULSION, CALCULATED AS THE SOLIDS.
Claim 2
Dependent Claim
260 words
IN A SIZING AGENT COMPOSITION FOR GLASS FIBERS COMPRISING A FILM-FORMING MATERIAL, A LUBRICANT FOR GLASS FIBERS, A COUPLING AGENT FOR GLASS FIBERS AND AN ANTISTATIC AGENT, THE IMPROVEMENT WHICH COMPRISES EMPLOYING AS THE FILM-FORMING MATERIAL AN OIL-IN-WATER TYPE EMULSION OF AN UNSATURATED POLYESTER OBTAINED BY THE REACTION OF (A) 1 MOLE OF A DIBASIC ACID COMPONENT CONTAINING AT LEAST 50 MOLE PERCENT OF A MATERIAL SELCTED FROM THE GROUP CONSISTING OF FUMARIC ACID, MALEIC ANHYDRIDE AND MIXTURE THEREOF, (B) 1 TO 1.5 MOLES OF A DIOL COMPONENT CONTAINING AT LLAST 30 MOLE PERCENT OF AN ADDUCT OF 2 TO 10 MOLES OF AN ALKYLENE OXIDE TO BISPHENOL A, WITH (C) AN EMULSIFILER SELECTED FROM THE GROUP CONSISTING OF AN ADDUCT OF 5 TO 200 MOLES OF AN ALKYLENE OXIDE TO CASTOR OIL, AN ADDUCT OF 5 TO 200 MOLES OF AN ALKYLENE OXIDE TO HYDROGENATED CASTOR OIL AND POLYETHYLENE GLYCOL HAVING AN AVERAGE MOLCULAR WEIGHT OF 1000 TO 6000, THE AMOUNT OF SAID EMULSIFIER (C) BEING 5 TO 30 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF THE SUM OF THE POLYESTER STARTING MATERIALS (A) AND (B), AND INCORPORATING THE RESULTING UNSATURATED POLYESTER INTO WATER TOGETHER WITH AN ANTISTATIC AGENT, SAID ANTISTATIC AGENT BEING A TRIETHANOLAMINE SALT OF AN OXYACID OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ANTIMONY, MOLYBDENUM, VANADIUM, ALUMINUM, ZINC, TIN, GERMANIUM, ZIRCONIUM, TUNGESTEN, BORON AND TELURIU, THE COMPOSITION CONTAINING FROM 1 TO 10 PART BY WEIGHT OF SAID ANTISTATIC AGENT PER 100 PARTS BY EIGHT OF SAID EMULSION, CALCULATED AS THE SOLIDS.
Claim 3
Dependent Claim
16 words
the balance is selected from the group consisting of hydrogenated bisphenol A, diol of the formula
Claim 4
Dependent Claim
16 words
the balance is selected from the group consisting of hydrogenated bisphenol A, diol of the formula
Claim 5
Dependent Claim
16 words
the balance of (a) is Alpha , Beta -ethylenically unsaturated dibasic acid component (b) consists of
Claim 6
Dependent Claim
16 words
the balance of (a) is Alpha , Beta -ethylenically unsaturated dibasic acid component (b) consists of
Claim 7
Dependent Claim
37 words
A composition according to claim 1, in which said emulsion is obtained by reacting at a temperature of 150* to 210*C, a reaction mixture consisting of components (a), (b), (c) and (d) wherein the mole ratio of
Claim 8
Dependent Claim
16 words
A method according to claim 2, wherein said alkylene oxide is ethylene oxide or propylene oxide.
Claim 9
Dependent Claim
13 words
A method according to claim 3, wherein component (a) consists of fumaric acid.
Claim 10
Independent Claim
13 words
A method according to calim 3, wherein component (a) consists of maleic anhydride.
Claim 11
Independent Claim
13 words
A method according to calim 3, wherein component (a) consists of maleic anhydride.
Claim 12
Dependent Claim
34 words
A coated product comprising glass fibers or mats of glass fibers coated with from 0.5 to 5 weight percent of a composition according to claim 1, based on the weight of the glass fibers.
Claim 13
Dependent Claim
45 words
A method of sizing glass fibers or mats of glass fibers which comprises applying an aqueous solution or emulsion of the composition defined in claim 1 to the glass fibers and then evaporating water from the composition to deposit a coating on said glass fibers.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |