US3865768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous fiber glass sizing composition
Assignee: Johns Manville Corp
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Filing: 1973-06-25
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Granted: 1975-02-11
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Expires: 1993-06-25
Abstract
Abstract A glass sizing composition having a degree of lubricity appropriate to formation of roving and compatible with polyester mixes is described. This composition contains a specifically defined poly(vinyl acetate) latex film former, at least one alkyl amide reaction product of a C5 to C20 alkyl carboxylic acid and an ethylene amine, a nonionic surfactant derived from hydrogenated fatty acid containing oil, and deionized water.
Inventors
- 👤 John Gilbert Mohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:21
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/16; C08K5/20; C08K5/54
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
141 words
A GLASS FIBER SIZING COMPOSITION HAVING A DEGREE OF LUBRICITY APPROPRIATE FOR FORMATION OF ROVING AND COMPATIBLE WITH POLYESTER MIXES, WHICH CONSISTS OF: 0.5 TO 15.0 WEIGHT PERCENT OF A POLY(VINYL ACETATE) LATEX FILM FORMER HAVING A SOLIDS CONTENT OF ABOUT 50-60 PERCENT, A PARTICLE SIZE IN THE RANGE OF ABOUT 0.25 TO 0.35 MICRON AND A PH IN THE RANGE OF 4.5 TO 5.0; 0.01 TO 0.6 WEIGHT PERCENT OF A POLYESTER COMPATIBLE SILANE, 0.01 TO 1.0 WEIGHT PERCENT OF AT LEAST ONE ALKYL AMIDE REACTION PRODUCT OF A C3 TO C20 ALKYL CARBOXYLIC ACID AN AN ETHYLENE AMINE; 0.05 TO 0.5 WEIGHT PERCENT OF A NONIONIC SURFACTANT DERIVED FROM HYDROGENATED FATTY ACID CONTAINING OIL; AND THE BALANCE COMPRISING DEIONIZED WATER; SAID GLASS FIBER SIZE COMPOSITION HAVING A PH IN AQUEOUS SOLUTION IN THE RANGE OF FROM 4 TO 6.
Claim 2
Dependent Claim
141 words
A GLASS FIBER SIZING COMPOSITION HAVING A DEGREE OF LUBRICITY APPROPRIATE FOR FORMATION OF ROVING AND COMPATIBLE WITH POLYESTER MIXES, WHICH CONSISTS OF: 0.5 TO 15.0 WEIGHT PERCENT OF A POLY(VINYL ACETATE) LATEX FILM FORMER HAVING A SOLIDS CONTENT OF ABOUT 50-60 PERCENT, A PARTICLE SIZE IN THE RANGE OF ABOUT 0.25 TO 0.35 MICRON AND A PH IN THE RANGE OF 4.5 TO 5.0; 0.01 TO 0.6 WEIGHT PERCENT OF A POLYESTER COMPATIBLE SILANE, 0.01 TO 1.0 WEIGHT PERCENT OF AT LEAST ONE ALKYL AMIDE REACTION PRODUCT OF A C3 TO C20 ALKYL CARBOXYLIC ACID AN AN ETHYLENE AMINE; 0.05 TO 0.5 WEIGHT PERCENT OF A NONIONIC SURFACTANT DERIVED FROM HYDROGENATED FATTY ACID CONTAINING OIL; AND THE BALANCE COMPRISING DEIONIZED WATER; SAID GLASS FIBER SIZE COMPOSITION HAVING A PH IN AQUEOUS SOLUTION IN THE RANGE OF FROM 4 TO 6.
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein said poly(vinyl acetate) latex forms a film having a Sward hardness of 20 to 23.
Claim 4
Dependent Claim
62 words
The composition of claim 1 wherein said alkyl carboxylic acid contains a C5 to C15 straight chain backbone having 0 to 5 sites of unsaturation and 0 to 2 side chains, each of said side chains containing 1 to 2 carbon atoms; and wherein said ethylene amine is a poly (ethylene amine) having at least three ethylene groups and four amine groups.
Claim 5
Dependent Claim
20 words
The composition of claim 1 wherein said nonionic surfactant is derived from a hydrogenated fatty acid containing non-drying vegetable oil.
Claim 6
Dependent Claim
23 words
The composition of claim 1 wherein said size is in the form of a aqueous solution having from 1 to 22 percent solids.
Claim 7
Dependent Claim
73 words
The composition of claim 1 consisting of 1 to 10 weight percent of said poly(vinyl acetate) latex film former, 0.1 to 0.4 weight percent of said polyester compatible silane, 0.1 to 0.5 weight percent of at least one of said alkyl amide reaction products, 0.07 to 0.3 weight percent of said nonionic surfactant, and the balance deionized water, the entire size composition comprising an aqueous solution having from 4 to 7 percent solids.
Claim 8
Dependent Claim
20 words
The composition of claim 6 containing a mixture of alkyl amide reaction products of alkyl carboxylic acids and ethylene amines.
Claim 9
Dependent Claim
14 words
The composition of claim 7 wherein said alkyl carboxylic acids are pelargonic and caprylic.
Claim 10
Dependent Claim
24 words
The composition of claim 8 wherein each of said reaction products is present as from 0.01 to 0.05 weight percent of the size composition.
Claim 11
Dependent Claim
100 words
THe composition of claim 1 consisting of: 8.9 weight percent of said poly(vinyl acetate) latex film former, said poly(vinyl acetate) latex film former being present as a homopolymer emulsion containing 55 weight percent solids; 0.2 weight percent of a cationic methallyl function containing amide reaction product of a mixture of pelargonic and caprylic acids with tetra-ethylene pentamine; 0.01 weight percent of an alkyl amide reaction product of a mixture of pelargonic and caprylic acids with tetraethylene pentamine; 0.2 weight percent of gamma-methacryloxy-propyltrimethoxy silane; 0.02 weight percent of alkoxy adduct of hydrogenated castor oil and 90.4 weight percent of deionized water.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |